Patent Description:
A welding-type power supply according to one aspect of the present invention is defined in claim <NUM>.

Methods and apparatus to provide feedback based on synergic control of a welding type output are disclosed as illustrated by and described in connection with the attached figures.

Gas Metal Arc Welding (GMAW), also referred to as MIG welding, is conventionally performed with a wire feed speed and voltage that is preselected prior to performing a weld. For instance, conventional welding power supplies may be controlled via knobs or buttons on the front panel of the welding power supply. If the operator selects too little power, the resulting weld may lack fusion and the weld may fail. Conversely, if the operator selects too much power, burn-through of the material may occur, creating a hole instead of a welded joint.

Some conventional welders, such as the Millermatic® <NUM> Auto-Set™ MIG Welder from Miller Electric Mfg. , makes the task of selecting weld parameters easier by permitting the operator to select both wire feed speed and voltage based on the wire size and material thickness. Preselection of the welding parameters is effective when the workpiece is of a uniform thickness and geometry, but in some situations the workpiece may have varying thickness and/or geometry. For instance, if an operator is welding a workpiece in which the workpiece progressively narrows, the heat sink capability of the metal is reduced and using the same power settings for the entire distance may result in burn-through and creating a hole.

Disclosed example methods and apparatus provide a welding-type power supply for GMAW welding that enables an operator to synergically adjust the output power during welding. An example method of synergic adjustment by an operator involves manipulating a control on the torch that is easily accessible to the operator during welding.

Where conventional welding-type power supplies may provide recommended voltage and wire feed speed, and permit a user to vary the voltage and/or wire feed speed within a specified narrow range, disclosed examples provide a control device that permits the operator to adjust the output power of a GMAW welding-type power supply over a wide operation range. For example, a manually adjustable control on the weld torch may be provided to adjust the power synergically by simultaneously changing the output voltage and the wire feed speed to raise or lower the output power to suit the work conditions and the weldment. The example welding torch, and the attached power supply and/or remote wire feeder, changes the welding output power and/or the wire feed speed while the operator is welding with an easy to use method such as a variable-input (e.g., analog input) trigger.

Some example methods and apparatus further automatically change a mode of operation or deposition mode during welding, such that the operator can change processes on-the-fly in a continuously variable manner, such that the operator has a very wide operating range of the output power. For example, if the operator wants to go from a first power operation or deposition mode (e.g., short arc welding) to a higher power operation or deposition mode (e.g., pulse spray welding), such as if the operator encounters an increase in the thickness of the work piece being welded, a power control circuit may follow a synergic control scheme to slowly raise the output voltage and the wire feed speed until the wire transitions from a short arc condition to a pulsed spray condition. In another example scenario, the power control circuit may allow the operator to transition from a first power operation or deposition mode (e.g., short arc welding) to a lower power operation or deposition mode (e.g., Regulated Metal Deposition (RMD™)). Disclosed examples enable an operator to enter other deposition modes, such as a Controlled Short Circuit (CSC) process, and/or arcless 'hotwire' deposition. An operator may change between the different deposition modes on-the-fly during a welding operation to finely control wire deposition and/or heat input to the weld.

Some disclosed example systems and methods provide a trigger hold feature that enables the operator to set a particular synergic output. When the trigger hold is engaged, the operator may release the trigger (or foot pedal, etc.) while the power supply maintains the synergic output to continue the welding-type operation. In some examples, the trigger hold is engaged after a substantially constant output (e.g., less than a threshold deviation) is sustained for a threshold time period. In some such examples, the trigger hold feature times out and is disable in response to the operator not using the trigger hold function within a threshold time period. For instance, if the operator is unaware that the trigger hold feature is available and ready to be engaged, or if the operator wishes to continue using the synergic output instead of engaging the trigger hold feature, the trigger hold feature times out and release of the trigger is less likely to cause an unintended continuation of welding.

Some disclosed example systems and methods output a perceptible alert to inform the operator that the trigger hold may be engaged (e.g., when the input device is released), such as a visual alert, an audible alert, a haptic alert, and/or any other type of perceptible feedback.

Because the input device (e.g., the trigger, foot pedal, or other variable input device) may be difficult for some operators to maintain in a steady position, some disclosed systems and methods filter the input signal used to control the synergic output. In some examples, the filter reduces the influence of short-term or transient changes in the output. Some example systems and methods filter the input signal by applying weights to the input signals, and using multiple, weighted samples of the input signal to determine a filtered input signal, which is then used to determine the synergic output. Recent samples may be weighted lower, with the weight applied to a given sample increasing as the age of the sample increases. The number of most recent samples may be limited to enable the operator to responsively change the synergic output during the weld.

In some disclosed example systems and methods, the range of input signal values (e.g., from a trigger, foot pedal, or other variable input device) is mapped to an entire range of output power of which the welding-type system is capable. In other disclosed example systems and methods, the range of input signal values is mapped to a subrange of synergic output, and/or subranges of variables (e.g., voltage and wire feed speed) involved in generating the synergic output. In some examples, the subrange of synergic output is determined based on one or more physical characteristics of the welding operation, such as workpiece thickness, workpiece material, wire diameter, wire material, and/or shielding gas composition. Additionally or alternatively, subranges of the input signal range are mapped to separate subranges of the synergic output, in which the subranges of the input signal range are not equally wide and/or the subranges of the synergic output are not equally wide.

Some disclosed example systems and methods include one or more operator feedback devices, which may be controlled to provide feedback to the operator in response to one or more events and/or other information about the synergic output. Feedback that is provided to the operator via the operator feedback devices includes, according to the present invention, generating feedback to generate an output that is directly proportional or inversely proportional to a value of the control signal. Further feedback provided to the operator can include generating feedback in response to identifying that a synergic control signal is outside of a predetermined range of values of the control signal, generating feedback in response to the control signal changing from a first predetermined range of values of the control signal to a second predetermined range of values of the control signal, and/or generating feedback to provide any other information about the synergic control to the operator and/or events associated with the synergic control.

Some disclosed example systems and methods involve synergically controlling the value of multiple welding-type parameters based on the value of a control signal, such as by looking up the parameters in a lookup table. In other examples, a primary parameter or key parameter (e.g., voltage, current, power, etc.) may be correlated to the control signal, and one or more secondary parameters (e.g., wire feed speed, pulse trim, etc.) are adjusted based on the changes to the primary parameter.

Additionally or alternatively, instead of modifying parameters based on the control signal or a primary parameter, one or more parameters may be controlled via the control signal while the other operative parameters are held constant. Holding parameters constant may enable an operator to, for example, vary a particular parameter of interest according to the conditions of the weld without having multiple adjustments made by the welding-type system in response to the modified parameter.

As used herein, the term "welding-type power" refers to power suitable for welding, plasma cutting, induction heating, CAC-A and/or hot wire welding/preheating (including laser welding and laser cladding). As used herein, the term "welding-type power supply" refers to any device capable of, when power is applied thereto, supplying welding, plasma cutting, induction heating, CAC-A and/or hot wire welding/preheating (including laser welding and laser cladding) power, including but not limited to inverters, converters, resonant power supplies, quasi-resonant power supplies, and the like, as well as control circuitry and other ancillary circuitry associated therewith.

As used herein, a welding-type power supply refers to any device capable of, when power is applied thereto, supplying welding, cladding, plasma cutting, induction heating, laser (including laser welding, laser hybrid, and laser cladding), carbon arc cutting or gouging and/or resistive preheating, including but not limited to transformer-rectifiers, inverters, converters, resonant power supplies, quasi-resonant power supplies, switch-mode power supplies, etc., as well as control circuitry and other ancillary circuitry associated therewith.

As used herein, a "weld voltage setpoint" refers to a voltage input to the power converter via a user interface, network communication, weld procedure specification, or other selection method.

As used herein, a "circuit" includes any analog and/or digital components, power and/or control elements, such as a microprocessor, digital signal processor (DSP), software, and the like, discrete and/or integrated components, or portions and/or combinations thereof.

As used herein, "synergic control" refers to controlling two or more variables or components according to a specified relationship. In some examples, a primary variable is controlled via an input device, and one or more variables are synergically controlled according to the primary variable. As used herein, "synergic output" refers to welding-type power in which two or more variables associated with generating the welding-type power are controlled according to a specified relationship.

As used herein, the term "operator feedback device" refers to a feedback device capable of outputting a perceptible signal to the operator, such as visual, audible, haptic (e.g., tactile), and/or other operator-perceptible feedback. An operator feedback device does not include changes to a welding arc or welding output that typically occur during conventional arc welding operations, such as sounds typically used by a weld operator to subjectively judge whether weld parameters are acceptable (e.g., crackling or popping sounds, the "frying bacon" sound often considered to correspond to good welding conditions, etc.).

As used herein, the term "remote wire feeder" refers to a wire feeder that is not integrated with the power supply in a single housing.

Disclosed example welding-type power supplies include a power conversion circuit, a communication circuit, and a control circuit. The power conversion circuit converts input power to welding-type power and outputs the welding-type power to a welding-type torch. The communication circuit receives a control signal from a remote control device during a welding-type operation, and the control circuit synergically controls a parameter (e.g., voltage) of the welding-type power and a wire feed speed based on the control signal.

In some examples, the control circuit synergically controls the voltage and the wire feed speed by: setting a commanded power level of the welding-type power based on the control signal, determining the voltage and the wire feed speed corresponding to the commanded power level, controlling the power conversion circuit to output the voltage, and controlling a wire feeder based on the wire feed speed. In some such examples, the control circuit accesses a lookup table to determine the commanded power level of the welding-type power based on the control signal.

In some example welding-type power supplies, the communication circuit receives the control signal from at least one of the welding-type torch or a foot pedal. In some examples, the control circuit synergically controls the voltage of the welding-type power by changing a deposition mode from a first deposition mode to a second deposition mode in response to the control signal. In some such examples, the first deposition mode is an arcless hotwire mode, a regulated metal deposition mode, a controlled short circuit mode, a short arc mode, a pulse spray mode, or a spray transfer mode, and the second deposition mode is another of the arcless hotwire mode, the regulated metal deposition mode, the controlled short circuit mode, the short arc mode, the pulse spray mode, or the spray transfer mode.

In some example welding-type power supplies, the control circuit synergically controls the voltage of the welding-type power and the wire feed speed to enable manual control of a heat input to the welding-type operation in real time during the welding-type operation. In some examples, the control circuit synergically controls the voltage of the welding-type power and the wire feed speed by controlling a remote wire feeder based on the wire feed speed. In some example welding-type power supplies, the control circuit selects the voltage from a substantially contiguous voltage range and selects the wire feed speed from a substantially contiguous wire feed speed range.

Disclosed example control devices for a welding-type system include an input circuit, a control circuit, and an output circuit. The input circuit identifies a user input during a welding-type operation involving welding-type power. The control circuit determines a voltage adjustment of the welding-type power and a wire feed speed adjustment based on the user input, and based on a synergic control scheme for a voltage of the welding-type power and a wire feed speed. The output circuit generates one or more control signals to control a welding-type power supply providing the welding-type power to perform the voltage adjustment and to control a wire feeder to perform the wire feed speed adjustment.

In some example control devices, the control circuit determines the voltage adjustment and the wire feed speed adjustment based on the synergic control scheme by looking up the voltage adjustment and the wire feed speed adjustment in a lookup table. In some examples, the control circuit changes a deposition mode from a first deposition mode to a second deposition mode in response to the user input based on at least one of the voltage adjustment or the wire feed speed adjustment. In some such examples, the first deposition mode is an arcless hotwire mode, a regulated metal deposition mode, a controlled short circuit mode, a short arc mode, a pulse spray mode, or a spray transfer mode, and the second deposition mode is another of the arcless hotwire mode, the regulated metal deposition mode, the controlled short circuit mode, the short arc mode, the pulse spray mode, or the spray transfer mode.

In some example control circuits, the output circuit transmits at least one of the one or more control signals to a remote wire feeder to control the remote wire feeder based on the wire feed speed adjustment. In some examples, the output circuit transmits at least one of the one or more control signals to the welding-type power supply to control the welding-type power supply based on the voltage adjustment. In some examples, the control device is a welding-type torch, a foot pedal, the welding-type power supply, or a remote wire feeder.

According to the invention defined in the claims, there is provided a welding-type power supply that includes: power conversion circuitry configured to convert input power to welding-type power and to output the welding-type power to a welding-type torch; a communication circuit configured to receive a synergic control signal from a remote control device during a welding-type operation; and control circuitry. The control circuitry is configured to: based on the synergic control signal, synergically control at least two of a voltage of the welding-type power output by the power conversion circuitry, a current of the welding-type power, or a wire feed speed; and output a feedback control signal to control an operator feedback device to generate an output that is directly proportional or inversely proportional to a value of the synergic control signal.

In some embodiments of the invention, the control circuitry is configured to output the feedback control signal to control at least one of a vibration motor, an eccentric rotating mass actuator, or a piezoelectric actuator to provide haptic feedback to an operator. In some embodiments, the control circuitry is configured to output the feedback control signal in response to identifying that the synergic control signal is outside of a predetermined range of values of the synergic control signal.

In some embodiments, the control circuitry is configured to output the feedback control signal in response to the synergic control signal changing from a first predetermined range of values of the synergic control signal to a second predetermined range of values of the synergic control signal. In some embodiments, the control circuitry is configured to synergically control the voltage and the wire feed speed by: setting a commanded power level of the welding-type power based on the synergic control signal; determining the voltage and the wire feed speed corresponding to the commanded power level; controlling the power conversion circuitry to output the voltage; and controlling a wire feeder based on the wire feed speed.

In some embodiments, the communication circuit is configured to receive the synergic control signal from the welding-type torch. In some embodiments, the control circuitry is configured to output the feedback control signal to the welding-type torch to control the operator feedback device on the welding-type torch. In some embodiments, the control circuitry is configured to synergically control the voltage of the welding-type power by changing a deposition mode from a first deposition mode to a second deposition mode in response to the synergic control signal, and the control circuitry is configured to output the feedback control signal in response to changing the deposition mode.

In some embodiments, the synergic control signal is configured to output the feedback control signal to control an audio output device to provide audio feedback to an operator. In some embodiments, the synergic control signal is configured to output the feedback control signal to control a visual output device to provide visual feedback to an operator. In some embodiments, the visual feedback includes a graphic representative of a range of the control signal, one or more subranges of the control signal, a range of at least one of the synergically controlled voltage, current, or wire feed speed, and one or more subranges of the at least one of the synergically controlled voltage, current, or wire feed speed.

Turning now to the drawings, <FIG> is a block diagram of an example welding system <NUM> having a welding-type power supply <NUM>, a wire feeder <NUM>, and a welding torch <NUM>. The welding system <NUM> powers, controls, and supplies consumables to a welding application. The example welding torch <NUM> is configured for gas metal arc welding (GMAW). In the illustrated example, the power supply <NUM> is configured to supply power to the wire feeder <NUM>, and the wire feeder <NUM> may be configured to route the input power to the welding torch <NUM>. In addition to supplying an input power, the wire feeder <NUM> supplies a filler metal to a welding torch <NUM> for various welding applications (e.g., GMAW welding, flux core arc welding (FCAW)).

The power supply <NUM> receives primary power <NUM> (e.g., from the AC power grid, an engine/generator set, a battery, or other energy generating or storage devices, or a combination thereof), conditions the primary power, and provides an output power to one or more welding devices in accordance with demands of the system <NUM>. The primary power <NUM> may be supplied from an offsite location (e.g., the primary power may originate from the power grid). The power supply <NUM> includes a power conversion circuitry <NUM>, which may include transformers, rectifiers, switches, and so forth, capable of converting the AC input power to AC and/or DC output power as dictated by the demands of the system <NUM> (e.g., particular welding processes and regimes). The power conversion circuitry <NUM> converts input power (e.g., the primary power <NUM>) to welding-type power based on a weld voltage setpoint and outputs the welding-type power via a weld circuit.

In some examples, the power conversion circuitry <NUM> is configured to convert the primary power <NUM> to both welding-type power and auxiliary power outputs. However, in other examples, the power conversion circuitry <NUM> is adapted to convert primary power only to a weld power output, and a separate auxiliary converter is provided to convert primary power to auxiliary power. In some other examples, the power supply <NUM> receives a converted auxiliary power output directly from a wall outlet. Any suitable power conversion system or mechanism may be employed by the power supply <NUM> to generate and supply both weld and auxiliary power.

The power supply <NUM> includes a control circuitry <NUM> to control the operation of the power supply <NUM>. The power supply <NUM> also includes a user interface <NUM>. The control circuitry <NUM> receives input from the user interface <NUM>, through which a user may choose a process and/or input desired parameters (e.g., voltages, currents, particular pulsed or non-pulsed welding regimes, and so forth). The user interface <NUM> may receive inputs using any input device, such as via a keypad, keyboard, buttons, touch screen, voice activation system, wireless device, etc. Furthermore, the control circuitry <NUM> controls operating parameters based on input by the user as well as based on other current operating parameters. Specifically, the user interface <NUM> may include a display <NUM> for presenting, showing, or indicating, information to an operator. The control circuitry <NUM> may also include interface circuitry for communicating data to other devices in the system <NUM>, such as the wire feeder <NUM>. For example, in some situations, the power supply <NUM> wirelessly communicates with the wire feeder <NUM> and/or other welding devices within the welding system <NUM>. Further, in some situations, the power supply <NUM> communicates with the wire feeder <NUM> and/or other welding devices using a wired connection, such as by using a network interface controller (NIC) to communicate data via a network (e.g., ETHERNET, 10BASE2, 10BASE-T, 100BASE-TX, etc.).

The control circuitry <NUM> includes at least one processor <NUM> that controls the operations of the power supply <NUM>. The control circuitry <NUM> receives and processes multiple inputs associated with the performance and demands of the system <NUM>. The processor <NUM> may include one or more microprocessors, such as one or more "general-purpose" microprocessors, one or more special-purpose microprocessors and/or ASICS, and/or any other type of processing device and/or logic circuit. For example, the processor <NUM> may include one or more digital signal processors (DSPs).

The example control circuitry <NUM> includes one or more storage device(s) <NUM> and one or more memory device(s) <NUM>. The storage device(s) <NUM> (e.g., nonvolatile storage) may include ROM, flash memory, a hard drive, and/or any other suitable optical, magnetic, and/or solid-state storage medium, and/or a combination thereof. The storage device <NUM> stores data (e.g., data corresponding to a welding application), instructions (e.g., software or firmware to perform welding processes), and/or any other appropriate data. Examples of stored data for a welding application include an attitude (e.g., orientation) of a welding torch, a distance between the contact tip and a workpiece, a voltage, a current, welding device settings, and so forth.

The memory device <NUM> may include a volatile memory, such as random access memory (RAM), and/or a nonvolatile memory, such as read-only memory (ROM). The memory device <NUM> and/or the storage device(s) <NUM> may store a variety of information and may be used for various purposes. For example, the memory device <NUM> and/or the storage device(s) <NUM> may store processor executable instructions <NUM> (e.g., firmware or software) for the processor <NUM> to execute. In addition, one or more control regimes for various welding processes, along with associated settings and parameters, may be stored in the storage device <NUM> and/or memory device <NUM>, along with code configured to provide a specific output (e.g., initiate wire feed, enable gas flow, capture welding current data, detect short circuit parameters, determine amount of spatter) during operation.

In some examples, the welding power flows from the power conversion circuitry <NUM> through a weld cable <NUM> to the wire feeder <NUM> and the welding torch <NUM>. The example weld cable <NUM> is attachable and detachable from weld studs at each of the power supply <NUM> and the wire feeder <NUM> (e.g., to enable ease of replacement of the weld cable <NUM> in case of wear or damage).

The example communications transceiver <NUM> includes a receiver circuit <NUM> and a transmitter circuit <NUM>. Generally, the receiver circuit <NUM> receives data transmitted by the wire feeder <NUM> and the transmitter circuit <NUM> transmits data to the wire feeder <NUM>. The example wire feeder <NUM> also includes a communications transceiver <NUM>, which may be similar or identical in construction and/or function as the communications transceiver <NUM>.

In some examples, a gas supply <NUM> provides shielding gases, such as argon, helium, carbon dioxide, and so forth, depending upon the welding application. The shielding gas flows to a valve <NUM>, which controls the flow of gas, and if desired, may be selected to allow for modulating or regulating the amount of gas supplied to a welding application. The valve <NUM> may be opened, closed, or otherwise operated by the control circuitry <NUM> to enable, inhibit, or control gas flow (e.g., shielding gas) through the valve <NUM>. Shielding gas exits the valve <NUM> and flows through a gas conduit <NUM> (which in some implementations may be packaged with the welding power output) to the wire feeder <NUM> which provides the shielding gas to the welding application. In some examples, the welding system <NUM> does not include the gas supply <NUM>, the valve <NUM>, and/or the gas conduit <NUM>. In some other examples, the valve <NUM> is located in the wire feeder <NUM>, and, the gas supply <NUM> is connected to the wire feeder <NUM>.

In some examples, the wire feeder <NUM> uses the welding power to power the various components in the wire feeder <NUM>, such as to power wire feeder control circuitry <NUM>. As noted above, the weld cable <NUM> may be configured to provide or supply the welding power. The wire feeder control circuitry <NUM> controls the operations of the wire feeder <NUM>. In some examples, the wire feeder <NUM> uses the wire feeder control circuitry <NUM> to detect whether the wire feeder <NUM> is in communication with the power supply <NUM> and to detect a current welding process of the power supply <NUM> if the wire feeder <NUM> is in communication with the power supply <NUM>.

A contactor <NUM> (e.g., high amperage relay) is controlled by the wire feeder control circuitry <NUM> and configured to enable or inhibit welding power to continue to flow to the weld cable <NUM> for the welding application. In some examples, the contactor <NUM> is an electromechanical device. However, the contactor <NUM> may be any other suitable device, such as a solid state device, and/or may be omitted entirely and the weld cable <NUM> is directly connected to the output to the welding torch <NUM>. The wire feeder <NUM> includes a wire drive <NUM> that receives control signals from the wire feeder control circuitry <NUM> to drive rollers <NUM> that rotate to pull wire off a spool <NUM> of wire. The wire drive <NUM> feeds electrode wire to the welding torch <NUM>. The wire is provided to the welding application through a torch cable <NUM>. Likewise, the wire feeder <NUM> may provide the shielding gas from the gas conduit <NUM> and combined in a torch cable <NUM>. The electrode wire, the shield gas, and the power from the weld cable <NUM> are bundled together in a single torch cable <NUM> and/or individually provided to the welding torch <NUM>.

The welding torch <NUM> delivers the wire, welding power, and/or shielding gas for a welding application. The welding torch <NUM> is used to establish a welding arc between the welding torch <NUM> and a workpiece <NUM>. A work cable <NUM> couples the workpiece <NUM> to the power supply <NUM> (e.g., to the power conversion circuitry <NUM>) to provide a return path for the weld current (e.g., as part of the weld circuit). The example work cable <NUM> is attachable and/or detachable from the power supply <NUM> for ease of replacement of the work cable <NUM>. The work cable <NUM> may be terminated with a clamp <NUM> (or another power connecting device), which couples the power supply <NUM> to the workpiece <NUM>.

A communication cable <NUM> connected between the power supply <NUM> and the wire feeder <NUM>, which enables bidirectional communication between the transceivers <NUM>, <NUM>. The communications transceivers <NUM> and <NUM> may communicate via the communication cable <NUM>, via the weld circuit, via wireless communications, and/or any other communication medium. Examples of such communications include weld cable voltage measured at a device that is remote from the power supply <NUM> (e.g., the wire feeder <NUM>).

The example torch <NUM> includes a power selector circuit <NUM> to permit the user of the torch (e.g., the welder) to make adjustments to the welding output from the torch in a synergic manner. For example, as the user makes adjustments via the power selector circuit <NUM>, the power supply <NUM> and the wire feeder <NUM> synergically change the output voltage and the wire feed speed of the weld. An example implementation of the power selector circuit <NUM> is a pressure-sensitive trigger. For instance, the torch <NUM> may include the same trigger used in conventional welding-type torches, modified to provide an analog signal or encoded digital signal to represent an amount of input to the trigger. In some examples, the operator may incrementally depress the trigger (e.g., apply more pressure) to synergically increase the voltage and wire feed speed and/or incrementally release the trigger (e.g., apply less pressure) to synergically decrease the voltage and wire feed speed. Alternative implementations of the power selector circuit <NUM> include a wheel or slide configured to control a potentiometer and positioned to enable an operator to manipulate the input while welding (e.g., while simultaneously holding the trigger).

The power selector circuit <NUM> outputs a control signal <NUM> to a power control circuit <NUM> of the wire feeder <NUM>. The control signal <NUM> may be an analog or digital signal that represents the output from the power selector circuit <NUM>. The example power control circuit <NUM> may be implemented using the control circuitry <NUM> and/or as a separate circuit. The power control circuit <NUM> identifies a user input (e.g., an input from the power selector circuit <NUM>) during a welding-type operation involving welding-type power. The power control circuit <NUM> determines, based on the user input, a voltage adjustment for the welding-type power and a wire feed speed adjustment. For example, the power control circuit <NUM> may reference a synergic control scheme, such as an algorithm or a lookup table, to determine a voltage setpoint and/or a wire feed speed setpoint corresponding to the user input. A lookup table may be stored in, for example, the storage device(s) <NUM> and/or the memory <NUM> of the control circuitry <NUM>.

The example power control circuit <NUM> generates one or more control signals to control the welding-type power supply <NUM> to perform a voltage adjustment and to control the wire feeder <NUM> to perform a wire feed speed adjustment. For example, the power control circuit <NUM> may provide a wire feed speed command to the control circuitry <NUM> to control the wire feed speed of the wire drive <NUM>, and/or transmit a control signal to the power supply <NUM> via the communications transceiver <NUM> and the communication cable <NUM> to control the output voltage of the power supply <NUM>.

In some examples, the synergic control of the voltage and the wire feed speed causes the power control circuit <NUM> to change a deposition mode in response to the user input via the power selector circuit <NUM>. For example, GMAW deposition modes, such as an arcless hotwire mode, a regulated metal deposition mode, a controlled short circuit mode, a short arc mode, a pulse spray mode, or a spray transfer mode, typically correspond to different voltage ranges (with some overlap between some modes).

In some examples, the control circuitry <NUM> implements a trigger hold feature that enables the operator to set a particular synergic output. When the trigger hold is engaged, the operator may release the power selector <NUM> (e.g., resulting in a normalized value of the control signal falling to less than a threshold value associated with outputting welding-type power), and the control circuitry <NUM> continues to maintain the synergic output using a hold value of the control signal <NUM>. In some examples, the trigger hold is engaged after a substantially constant output (e.g., less than a threshold deviation) is sustained for a threshold time period. Additionally or alternatively, the torch <NUM>, the wire feeder <NUM>, and/or any other device may include an input device (e.g., a button, switch, etc.) that provides a control signal hold command to the control circuitry <NUM>. When the trigger hold is engaged, such as the operator releasing the power selector <NUM>, the control circuitry <NUM> determines the appropriate synergic output and controls the power conversion circuitry <NUM> and the wire feeder <NUM> based on the hold value determined in association with the control signal hold command. For example, the hold value may be determined using a value at which the operator held the power selector <NUM> for a threshold period of time to generate the control signal hold command, and/or a value of the control signal <NUM> at the time the control signal hold command was generated.

The control circuitry <NUM> may cause the trigger hold feature to time out, and disable the trigger hold feature, in response to the operator not using the trigger hold function within a threshold time period. For example, if the operator is unaware that the trigger hold feature is available or ready to be engaged, the operator may not intend to continue the welding-type operation in response to releasing the trigger of the welding torch <NUM>. In other cases, the operator may not desire to use the trigger hold, and instead prefers to continue using (e.g., varying) the synergic output during the welding-type operation.

In some examples, the control circuitry <NUM> responds to the control signal hold command by outputting a perceptible alert to inform the operator that the trigger hold may be engaged (e.g., when the power selector <NUM> is released). Example alerts may include a visual alert, an audible alert, a haptic alert, and/or any other type of perceptible feedback. Example trigger hold feedback may include, for example, an audible signal (e.g., a beep, tone, audible message, and/or any other audible feedback via a speaker in the power supply <NUM>, the wire feeder <NUM>, the torch <NUM>, a helmet of the operator, and/or any other speaker), a visual signal (e.g., a light, LED, display, and/or any other visual feedback via the power supply <NUM>, the wire feeder <NUM>, the torch <NUM>, a helmet of the operator, and/or any other visual device), haptic feedback (e.g., a tactile or other haptic feedback at the torch <NUM> or other location which can be perceived by the operator), and/or any other form of feedback. The trigger hold feedback signal conveys to the operator that the trigger hold function is engaged at the present synergic output level, should the operator choose to use the trigger hold function (e.g., by releasing the trigger or other variable input device). In some examples, the torch <NUM> includes a haptic generator <NUM>, such as a vibration motor, an eccentric rotating mass actuator, a piezoelectric actuator, and/or any other type of haptic generator, to create haptic feedback to the operator, and the control circuitry <NUM> is configured to output a haptic feedback signal to control the vibration motor, in response to the control signal hold command.

The control circuitry <NUM> generates a feedback control signal. The feedback control signal may alert the operator of one or more events during the welding operation. According to the invention, the feedback control signal controls an operator feedback device to generate an output that is directly proportional or inversely proportional to a value of the synergic control signal. The feedback control signal may be used to control devices internal to the power supply <NUM> (e.g., the display <NUM>, a speaker <NUM>, etc.) and/or devices external to the power supply <NUM> (e.g., devices in an operator helmet, at the torch <NUM>, at the wire feeder <NUM>, etc.). Example events are associated with the synergic control by the operator, such as alerting the operator when the value of the control signal <NUM> is outside of a predetermined range, or window, of values. The predetermined range of values may be defined by the operator and/or determined by the control circuitry <NUM> using welding parameters (e.g., physical parameters of the weld, etc.), a weld procedure specification (WPS), and/or any other information.

Other example events associated with the synergic control include feedback representative of the value of the control signal <NUM> and/or of the synergic output (e.g., the power, voltage, and/or wire feed speed). For example, the control circuitry <NUM> may control the haptic generator <NUM> to increase the strength and/or frequency of the haptic feedback proportionally (or inversely proportional) to the control signal and/or the synergic output, change a haptic feedback pattern based on a characteristic of the synergic output (e.g., the deposition mode, whether the control signal is within a subrange of the input value range, etc.). Additionally or alternatively, the control circuitry <NUM> may output, based on the value of the control signal and/or the synergic output, audio that increases in amplitude, frequency, and/or any other characteristic. The audio-based output may be, for example, a speaker or buzzer on the power supply <NUM>, the wire feeder <NUM>, the torch <NUM>, a helmet worn by the operator, and/or a separate device. Additionally or alternatively, the control circuitry <NUM> may output the audio feedback using arc-based audio, using techniques such as those disclosed in <CIT>, entitled "Methods and Apparatus to Communicate via a Welding Arc.

In some examples, the control circuitry <NUM> controls visual feedback (e.g., an LED, a blinking light, a graphic on the display <NUM>, etc.) that changes in color, graphic, blinking frequency, and/or any other visual feedback technique. For example, the control circuitry <NUM> may update a graphic on the display <NUM> that illustrates the value of the control signal <NUM> and/or the synergic output (e.g., power, voltage, and/or wire feed speed) within a range. The range may specify upper and lower limits of the synergic output and/or the input value range of the control signal <NUM>, and an indicator illustrating the current input signal or synergic output is displayed with respect to the graphic. The range may be based on, for example, the physical characteristics of the welding operation, an operator-selected range, and/or any other variables.

In still other examples, the control circuitry <NUM> may output the feedback control signal in response to a change in the control of the synergic output, such as when changing from a first subrange of the input value range to a second subrange of the input value range, when changing deposition modes, and/or any other change that may be implemented by the operator using the power selector <NUM>. For example, if the operator reduces pressure on a trigger to reduce synergic output, the control circuitry <NUM> may generate the feedback control signal in response to the control signal <NUM> traversing a threshold point (e.g., a threshold value of the control signal <NUM>) representing a change in control.

The example control circuitry <NUM> may also filter the control signal <NUM> to avoid unintended changes in the synergic output caused by difficulty in maintaining the power selector <NUM> in a steady position. For example, the control circuitry <NUM> may filter the control signal <NUM> to reduce the influence of short-term or transient changes in the synergic output. An example filter technique may involve determining the synergic output using a set of most recent samples of the control signal <NUM>, and applying weights to the samples of the control signal <NUM> based on the age of the samples. Thus, older samples are more heavily weighted in the determination of the synergic output than the more recent samples. In some such examples, the weights may have a rapid increase after a threshold age of the samples, such that samples measured less than a threshold time prior are weighted very low and samples measured more than the threshold time prior are weighted substantially higher.

Another example technique that may be used involves determining a filtering subrange of values of the control signal <NUM> based on the value of the control signal <NUM> at a given time. While the value of the control signal <NUM> at subsequent times remains within the filtering subrange of values, the control circuitry <NUM> synergically controls the voltage of the welding-type power and the wire feed speed based on the value of the control signal <NUM> used to determine the filtering subrange.

In some examples, the control circuitry <NUM> maps the range of values of the control signal <NUM>, or a subrange of the values, to an entire range of output power of which the welding-type system <NUM> is capable. In other examples, the range of values of the control signal <NUM> is mapped to a subrange of the synergic output and/or subranges of variables (e.g., voltage and wire feed speed) involved in generating the synergic output. For example, the control circuitry <NUM> may determine a recommended range and/or a permissible range of synergic output based on the physical characteristics of the welding-type operation, which may be input via the user interface <NUM>, and map the recommended range and/or a permissible range of synergic output to the range of values of the control signal such that the synergic output cannot go outside of the mapped subrange of the synergic output. Example physical characteristics that may be used to determine the subrange of synergic output may include a workpiece thickness, a workpiece material, a wire composition, a wire diameter, and/or a shielding gas composition. By mapping the range of values of the control signal <NUM> to a subrange that is determined to be recommended or permissible for the physical characteristics of the welding-type operation, the operator may be prevented from using a synergic output that is not recommended for the particular physical characteristics of the weld, thereby improving weld quality and reducing errors and/or rework.

Additionally or alternatively, the control circuitry <NUM> may map subranges of the control signal <NUM> to separate subranges of synergic output, in which the subranges of the control signal <NUM> are not equally wide and/or the subranges of the synergic output are not equally wide. In this manner, the control circuitry <NUM> may enable an operator to have a higher degree of control of the synergic output in a portion of interest of the range of the power selector <NUM> (e.g., a portion of the travel range of a trigger or foot pedal) than in another portion.

<FIG> is a block diagram of another example welding-type system <NUM> configured to provide synergic power control with a welding-type power supply <NUM> having an integrated wire feeder <NUM>. The example welding-type power supply <NUM> includes the power conversion circuitry <NUM>, control circuitry <NUM>, the user interface <NUM>, the display <NUM>, the processor(s) <NUM>, the storage devices(s) <NUM>, the memory <NUM>, the instructions <NUM>, and the valve <NUM> of the example power supply <NUM> of <FIG>.

In contrast with the example system <NUM>, in the example of <FIG> the power supply <NUM> includes the integrated wire feeder <NUM> instead being connected to a remote wire feeder. The power supply <NUM> of <FIG> outputs welding-type power and electrode wire to the torch <NUM>, which includes the example power selector circuit <NUM>.

The integrated wire feeder <NUM> includes the wire drive <NUM>, the drive rollers <NUM>, and the wire spool <NUM>, and feeds the wire through a torch cable <NUM> to the torch <NUM>.

The example welding-type power supply <NUM> includes a communication circuit <NUM> to receive the control signal <NUM> from the power selector circuit <NUM> (e.g., during a welding operation). In some examples, the communication circuit <NUM> converts an analog signal to a digital signal for use by the control circuitry <NUM> and/or receives a digital signal from the power selector circuit <NUM>. The example control circuitry <NUM> synergically controls the voltage of the welding-type power (e.g., by controlling the power conversion circuitry <NUM>) and the wire feed speed (e.g., by controlling the wire drive <NUM>) based on the control signal <NUM>. In this manner, the example control circuitry <NUM> may operate in a similar manner as the power control circuit <NUM> of <FIG>.

The control circuitry <NUM> may reference a synergic control scheme, such as an algorithm or a lookup table, to determine a voltage setpoint and/or a wire feed speed setpoint corresponding to the user input. A lookup table may be stored in, for example, the storage device(s) <NUM> and/or the memory <NUM> of the control circuitry <NUM>.

<FIG> is a block diagram of another example welding-type system <NUM> including a torch <NUM> having a power control circuit <NUM> configured to provide synergic power control. The example power control circuit <NUM> in the torch <NUM> may be implemented in a similar manner as the power control circuit <NUM> described above with reference to <FIG>.

<FIG> is a block diagram of an example implementation of the power control circuits <NUM> and/or <NUM> of <FIG> and <FIG>. The power control circuit <NUM>, <NUM> of <FIG> may be implemented, for example, in the torch <NUM>, the remote wire feeder <NUM>, a foot pedal, the power supply <NUM>, and/or any other component of the systems <NUM>, <NUM>, <NUM> of <FIG>.

The example power control circuit <NUM>, <NUM> of <FIG> includes an input circuit <NUM>, a control circuit <NUM>, and an output circuit <NUM>. The input circuit <NUM> identifies a user input during a welding-type operation involving welding-type power. For example, the input circuit <NUM> may receive the control signal <NUM> from the power selector circuit <NUM> when an operator controls the power selector circuit <NUM> during a weld to synergically adjust the welding output.

The control circuit <NUM> determines a voltage adjustment of the welding-type power and a wire feed speed adjustment based on the user input (e.g., based on the control signal <NUM>). For example, the control circuit <NUM> may determine the voltage adjustment and the wire feed speed adjustment by interpreting the user input according to a synergic control scheme relating the voltage of the welding-type power and the wire feed speed output by the torch <NUM>. In the example of <FIG>, the control circuit <NUM> may look up the voltage adjustment and the wire feed speed adjustment in a lookup table based on the control signal <NUM>.

In some examples, the control circuit <NUM> identifies or determines that the deposition mode is to be changed (e.g., from a first deposition mode to a second deposition mode) in response to the user input. For example, as the synergic control scheme causes the voltage to increase or decrease, a threshold may be crossed that causes the control circuit <NUM> to determine (e.g., based the voltage adjustment, the wire feed speed adjustment, the lookup table <NUM>, and/or any other synergic control factors) that the output power is more appropriately suited to a different deposition mode or transfer mode. Example deposition modes that may be selected by the control circuit <NUM> include an arcless hotwire mode, a regulated metal deposition mode, a controlled short circuit mode, a short arc mode, a pulse spray mode, or a spray transfer mode. In some examples, the control circuit <NUM> may apply a hysteresis to the thresholds so that the control circuit <NUM> does not repeatedly switch between deposition modes having similar or overlapping voltage and/or wire feed speed ranges.

The output circuit <NUM> generates one or more control signals <NUM> to control the power supply <NUM> providing the welding-type power (e.g., to the torch <NUM>) to perform the voltage adjustment, and/or to control the wire feeder <NUM> to perform the wire feed speed adjustment. In some examples, the one or more control signals <NUM> are transmitted to different devices (e.g., the power supply <NUM> and the remote wire feeder <NUM>). In some other examples, the one or more control signals <NUM> are transmitted to a single device (e.g., from the power supply <NUM> to the remote wire feeder <NUM>, from the remote wire feeder <NUM> to the power supply <NUM>, from the torch <NUM> to the power supply <NUM> including the integrated wire feeder <NUM>, etc.).

<FIG> is an example table <NUM> including corresponding voltage, wire feed speed, and process modes that may be used to determine voltage setpoints, wire feed speed setpoints, and/or process modes for performing welding operations. The example table <NUM> may be used to implement the lookup table <NUM> of <FIG>. While one example table <NUM> is shown in <FIG>, the lookup table <NUM> may include multiple tables corresponding to different welding conditions (e.g., different workpiece materials, different wire types, different gas types, etc.). The synergic control scheme represented in the lookup table <NUM> enables the operator to adjust the welding output to react to changes in welding conditions, such as changes in workpiece thickness and/or seam orientation.

The example lookup table <NUM> of <FIG> correlates different input values (e.g., values represented by the control signal <NUM>) with corresponding voltages (e.g., arc voltage setpoints), wire feed speeds, and/or deposition modes. For example, as an operator increases a value of the control signal <NUM> and/or decreases the value of the control signal <NUM> during a welding-type operation (e.g., by incrementally depressing and/or releasing the trigger, by increasing and/or decreasing a control device that is operatively linked to a potentiometer, etc.), the control circuit <NUM> of <FIG> may look up incrementally increasing and/or decreasing input values in the table <NUM> to determine the corresponding output voltage, wire feed speed, and/or deposition mode. In some examples, the corresponding voltages, wire feed speeds, and/or deposition modes are empirically determined and populated into the table <NUM> prior to the welding operations (e.g., during manufacture, downloading a firmware update, downloading a software package, etc.).

<FIG> is another example table <NUM> including schedules and corresponding weld parameters for performing welding operations. The example table <NUM> may be used to implement the lookup table <NUM> of <FIG> instead of or in addition to the table <NUM>. In the example table <NUM>, different ranges of input values correspond to different schedules, and each schedule may be assigned different variables. When the control circuitry <NUM> receives the control signal <NUM>, the control circuitry <NUM> looks up the schedule corresponding to the value of the control signal <NUM> as the input value, and controls the power conversion circuitry <NUM> according to the parameters specified in the table <NUM> in association with the schedule. The parameters and/or the input values associated with the schedules may be set by the operator. Using the example table <NUM>, the operator may switch between preconfigured schedules during a welding-type operation by controlling the control signal <NUM> via the power selector <NUM> (e.g., based on an amount of depression of a trigger, foot pedal, or other variable input device).

<FIG> is a flowchart representative of example machine readable instructions <NUM> which may be executed to implement one or more disclosed example methods and/or apparatus. The example instructions <NUM> may be executed by the example control circuitry <NUM>, the example control circuitry <NUM>, and/or the example power control circuits <NUM>, <NUM> of <FIG> to synergically control a welding-type output during a welding-type operation. The example instructions <NUM> are described with reference to the example welding-type power supply <NUM> of <FIG>, but may be modified for execution by the power control circuits <NUM>, <NUM> of <FIG>, <FIG>, and/or <NUM>.

At block <NUM>, the example control circuitry <NUM> determines whether a welding operation is being performed. If a welding operation is not being performed (block <NUM>), the control circuit <NUM> iterates block <NUM> until welding is occurring. When the control circuitry <NUM> determines that welding is occurring (block <NUM>), at block <NUM> the power conversion circuitry <NUM> converts input power to welding-type power and outputs the welding-type power to the welding torch <NUM>.

At block <NUM>, the communications circuit <NUM> determines whether a control signal (e.g., the control signal <NUM>) is received from a remote control device (e.g., from the power selector circuit <NUM>). If the control signal <NUM> has been received from the remote control device (block <NUM>), at block <NUM> the control circuitry <NUM> determines the synergic voltage and the wire feed speed based on the control signal <NUM>.

At block <NUM>, the control circuitry <NUM> determines whether a change in deposition mode is required (e.g., based on the synergic control scheme used to determine the synergic voltage and the wire feed speed). If a change in deposition mode is required (block <NUM>), at block <NUM> the control circuitry <NUM> determines a deposition mode to be used based on the control signal, the voltage, and/or the wire feed speed.

After determining the deposition mode (block <NUM>), if no change in the deposition mode is to occur (block <NUM>), or if no control signal has been received (block <NUM>), at block <NUM> the control circuitry <NUM> controls the power conversion circuitry <NUM> to output the determined voltage (e.g., via direct control and/or via a transceiver circuit).

At block <NUM>, the control circuitry <NUM> controls a wire feeder (e.g., the integrated wire feeder <NUM>, the remote wire feeder <NUM>) to feed wire at the determined wire feed speed (e.g., via direct control and/or via a transceiver circuit).

After controlling the power conversion circuitry <NUM> and/or the wire feeder <NUM>, <NUM>, control returns to block <NUM>.

<FIG> illustrate example interfaces that may be used to implement the display of <FIG> to provide visual feedback based on a control signal used to synergically control a welding output.

<FIG> illustrates an example display interface <NUM> that may be presented on the example display <NUM> of <FIG>, <FIG>, and/or <NUM> to provide visual feedback based on the control signal <NUM>. The example interface <NUM> includes a synergic indicator <NUM>, a voltage parameter indicator <NUM>, and a wire feed speed parameter indicator <NUM>. The synergic indicator <NUM> includes a graphic <NUM> representative of a range of the control signal <NUM>, one or more subranges of the control signal <NUM>, a range of the synergic output, and/or one or more subranges of the synergic output. The synergic indicator <NUM> further includes an indicator <NUM>, such as a needle, which points to a location within the graphic <NUM> corresponding to the value of the control signal <NUM> within the input value range.

<FIG> illustrates an example graphical indicator <NUM> that may be used to implement the synergic indicator <NUM> of the interface <NUM>. The example graphical indicator <NUM> includes two digital ranges <NUM>, <NUM> for the value of the control signal <NUM> (e.g., an analog trigger or foot pedal signal). The control signal <NUM> is in the first digital range <NUM> when the value of the control signal <NUM> (e.g., the trigger depression) is between <NUM>% and <NUM>% (inclusive) of the normalized input value range, and is in the second digital range <NUM> when the value of the control signal <NUM> is between <NUM>% and <NUM>% (inclusive).

When the control signal <NUM> is within the first digital range <NUM>, the control circuitry <NUM> controls the power conversion circuitry <NUM> and/or the wire feeder <NUM> to perform a lower-energy deposition mode such as a controlled short circuit (CSC) welding or regulated metal deposition (RMD™). When the control signal <NUM> is within the second digital range <NUM>, the control circuitry <NUM> controls the power conversion circuitry <NUM> and/or the wire feeder <NUM> to perform a higher-energy deposition mode such as spray arc welding or pulse spray. While example lower-energy and higher-energy deposition modes are mentioned above, any other welding-process and/or deposition mode may be used.

The ranges <NUM>, <NUM> are considered digital ranges in the example because there is a single synergic output level setting when the control signal <NUM> is within the given range <NUM>, <NUM> (e.g., there is a single synergic output for the entire range <NUM> and a single synergic output for the entire range <NUM>, and the synergic output does not vary within a range <NUM>, <NUM>). Thus, in the example of <FIG>, the control circuitry <NUM> controls the power conversion circuitry <NUM> and the wire feeder <NUM> to be off (e.g., when the control signal <NUM> is below the range <NUM>, such as when the trigger is released), to use a lower-energy deposition mode having a first synergic output (e.g., when the control signal <NUM> is within the range <NUM>), or to use a higher-energy deposition mode having a second synergic output (e.g., when the control signal <NUM> is within the range <NUM>).

<FIG> illustrates another example graphical indicator <NUM> that may be used to implement the synergic indicator <NUM> of the interface <NUM>. Instead of using digital ranges as in the example of <FIG>, the control circuitry <NUM> may use two or more analog ranges <NUM>, <NUM>. The example ranges <NUM>, <NUM> are considered to be analog ranges because the synergic output may change within each range <NUM>, <NUM> based on the value of the control signal <NUM>. The different ranges <NUM>, <NUM> may be selected based on having different deposition modes, different relationships between the control signal <NUM> and the synergic output (e.g., changes to the control signal <NUM> in one of the ranges <NUM>, <NUM> may result in a different amount of change to the synergic output than the other of the ranges <NUM>, <NUM>), and/or any other distinction. There are two analog ranges for the analog trigger.

As shown in <FIG>, the example graphical indicator <NUM> may illustrate gradients within each of the ranges <NUM>, <NUM> to illustrate the relative synergic output within each range <NUM>, <NUM>. Thus, the lower-energy portion of the range and gradient in the range <NUM> may still have a higher synergic output than the higher-energy portion of the range <NUM>.

<FIG> illustrates another example graphical indicator <NUM> that may be used to implement the synergic indicator <NUM> of the interface <NUM>. Instead of using only digital ranges as in the example of <FIG>, or only analog ranges as in the example of <FIG>, the graphical indicator <NUM> includes one or more digital ranges <NUM> and one or more analog ranges <NUM>. When the control signal <NUM> corresponds to any value within the digital range <NUM>, the synergic output is the same value. Conversely, the control circuitry <NUM> adjusts the synergic output based on the value of the control signal <NUM> relative to the values of the analog range <NUM> when the control signal <NUM> is within the analog range <NUM>.

The number of ranges <NUM>, <NUM> (or <NUM>, <NUM>, or <NUM>, <NUM>), the correlation of the ranges <NUM>, <NUM> (or <NUM>, <NUM>, or <NUM>, <NUM>) to values of the control signal <NUM> (e.g., the transitions between the ranges <NUM>, <NUM> (or <NUM>, <NUM>, or <NUM>, <NUM>), and/or the synergic output of the ranges <NUM>, <NUM> (or <NUM>, <NUM>, or <NUM>, <NUM>) may be automatically configured and/or manually configured by the operator. For example, the operator may configure the transition point between the ranges <NUM>, <NUM> (or <NUM>, <NUM>, or <NUM>, <NUM>) via the user interface <NUM>, via the operator interface <NUM>, and/or via a programming input from the torch <NUM>. Additionally or alternatively, the operator may configure the synergic output of the ranges <NUM>, <NUM> (or <NUM>, <NUM>, or <NUM>, <NUM>) to control, for example, the power level (e.g., for digital ranges) or range of power levels (e.g., for analog ranges), the deposition mode, whether a range is digital or analog, and/or any other aspects of the ranges <NUM>, <NUM> (or <NUM>, <NUM>, or <NUM>, <NUM>).

In an example process to configure the transition between the ranges <NUM>, <NUM>, the operator may set a transition point <NUM> at a first location to set a range of synergic output of the first analog range <NUM>. For example, if the operator prefers to set the transition point <NUM> based on the first analog range <NUM>, the operator may set the value of the transition point <NUM> to a value higher than the expected desired point (or may set it up to <NUM>% of the normalized value of the control signal <NUM>). As the operator performs a trial or practice weld, the operator may push a button or other input device on the torch <NUM>, wire feeder <NUM>, or power supply <NUM> to cause the control circuitry <NUM> to assign the transition point <NUM> to the present value of the control signal <NUM> and/or an offset to the value of the control signal <NUM>. The example control circuitry <NUM> may then map the ranges <NUM>, <NUM> to the respective ranges of the control signal <NUM> and to the synergic output.

<FIG> illustrates a flowchart representative of example machine readable instructions <NUM> which may be executed by the welding-type system <NUM> of <FIG>, <FIG>, and/or <NUM> to synergically control the welding-type system <NUM> based on a control signal <NUM> and to output a feedback signal to the operator based on the control signal <NUM>. The example instructions <NUM> may be executed by the example control circuitry <NUM>, the example control circuitry <NUM>, and/or the example power control circuits <NUM>, <NUM> of <FIG> to synergically control a welding-type output during a welding-type operation. The example instructions <NUM> are described with reference to the example welding-type power supply <NUM> of <FIG>, but may be modified for execution by the power control circuits <NUM>, <NUM> of <FIG>, <FIG>, and/or <NUM>.

At block <NUM>, the control circuitry <NUM> determines whether a welding operation is being performed. For example, the control circuitry <NUM> may determine whether at least a threshold value of the control signal is received from a trigger of the welding torch <NUM> (e.g., the power selector <NUM>), a foot pedal, and/or other control input. If a welding operation is not being performed (block <NUM>), control returns to block <NUM> to await a welding operation.

If a welding operation is being performed (block <NUM>), at block <NUM> the control circuitry <NUM> determines a value of the control signal (e.g., the control signal <NUM>) received from a remote control device (e.g., the power selector <NUM> of the torch <NUM>).

At block <NUM>, the control circuitry <NUM> determines a synergic voltage and wire feed speed based on the received value of the control signal. For example, the control circuitry <NUM> may determine a power level corresponding to the received value of the control signal, and calculate or look up (e.g., in a look up table) voltage and wire feed speed parameters corresponding to the power level.

At block <NUM>, the control circuitry <NUM> controls the power conversion circuitry <NUM> to convert the input power to welding-type power and outputs the welding-type power to the torch <NUM> based on the determined voltage and wire feed speed. For example, the control circuitry <NUM> may control the power conversion circuitry <NUM> based on the determined voltage and control the wire drive <NUM> based on the determined wire feed speed.

At block <NUM>, the control circuitry <NUM> outputs a feedback control signal to control an operator feedback device based on the control signal <NUM>. The control circuitry <NUM> generates the feedback control signal to control an operator feedback device to generate an output that is directly proportional or inversely proportional to a value of the control signal <NUM>. For example, the control circuitry <NUM> may control one or more of: a vibration motor, an eccentric rotating mass actuator, a piezoelectric actuator, and/or any other haptic generator to provide haptic feedback to an operator; an audio output device (e.g., the speaker) to provide audio feedback to an operator; a visual output device (e.g., the display <NUM>, one or more LEDs, etc.) to provide visual feedback to an operator; and/or any other feedback device. The example control circuitry <NUM> may generate the feedback control signal in response to identifying that the synergic control signal is outside of a predetermined range of values of the control signal <NUM>, in response to the control signal <NUM> changing from a first predetermined range of values of the control signal <NUM> to a second predetermined range of values of the control signal <NUM>, and/or to provide any other information about the synergic control to the operator and/or events associated with the synergic control.

While the examples disclosed above are described with reference to synergic voltage and wire feed speed, the disclosed systems and methods may control other parameters based on, for example, the type of welding-type operation being performed. For example, instead of or in addition to controlling voltage, disclosed systems and methods may synergically control current with one or more other parameters.

Claim 1:
A welding-type power supply (<NUM>, <NUM>), comprising:
power conversion circuitry (<NUM>) configured to convert input power to welding-type power and to output the welding-type power to a welding-type torch;
the welding-type power supply being characterised by the following:
a communication circuit (<NUM>) configured to receive a synergic control signal (<NUM>) from a remote control device during a welding-type operation; and
control circuitry (<NUM>) configured to:
based on the synergic control signal (<NUM>), synergically control at least two of a voltage of the welding-type power output by the power conversion circuitry, a current of the welding-type power, or a wire feed speed;
output a feedback control signal to control an operator feedback device to generate an output that is directly proportional or inversely proportional to a value of the synergic control signal (<NUM>).