Patent ID: 12244160

Elements and steps in the figures are illustrated for simplicity and clarity and have not necessarily been rendered according to any sequence. For example, steps that may be performed concurrently or in different order are illustrated in the figures to help to improve understanding of embodiments of the present disclosure.

DETAILED DESCRIPTION

While various aspects of the present disclosure are described with reference toFIGS.1-4A and4B, the present disclosure is not limited to such embodiments, and additional modifications, applications, and embodiments may be implemented without departing from the present disclosure. In the figures, like reference numbers will be used to illustrate the same components. Those skilled in the art will recognize that the various components set forth herein may be altered without varying from the scope of the present disclosure.

FIG.1. is a block diagram of power delivery management for a proprietary power mode100for delivering output power in a proprietary power output mode, also called an AC power mode. The proprietary power mode100is for a power delivery (PD) adapter102and a portable device104, both originating from a first manufacturer. In the example shown inFIG.1, the portable device104is a portable loudspeaker, having a PD protocol106that, for the PD adapter102of the same manufacturer, controls a first switch108, an amplifier110, a buck-boost charger112, and a battery114. The PD adapter102powers the portable device104using one of two output power delivery modes. In a proprietary output power mode, the amplifier110may draw power from the PD adapter102, for example, 2*25 W116. The PD adapter102also provides 3A fast charging118to the battery114. In the proprietary power delivery mode, output power116is modified by the proprietary protocol to output 2*25 W.

The PD adaptor102and the portable device104, both being from the first manufacturer, communicate using PD protocol106to control the first switch108to supply a voltage120of 20V to the amplifier110. The PD protocol106also controls the buck-boost charger112to deliver a charging current118of 3A for fast charging the battery114. In the proprietary power delivery mode, the PD adapter102supplies power to charge the battery114and the amplifier110on the portable device104also draws power from the PD adapter102.

FIG.2is a block diagram of a power delivery management for a default power mode200to the portable device104of the first manufacturer when it is connected to a PD adapter202from a second manufacturer. When a PD adaptor202, for example from a second manufacturer, is plugged in to the portable device104, the PD protocol106causes the portable device104to operate in a default power mode200. The PD protocol106interacts with the battery114, a second switch208and a booster212to provide output power for the default power mode200. In the default power mode, also called a battery mode, the amplifier110only draws power216from the battery114, for example, 2*15 W. The PD adapter202delivers a PD charge control current218to the battery114for charging. The amplifier110draws a voltage220of 13.6V only from the battery114.

FIG.3is a block diagram of a power delivery management from the PD adapter102of the first manufacturer when connected to a device304of the second manufacturer. In this arrangement, the PD adapter102delivers power according to a default power delivery mode322, for example to 20V and 3A.

FIGS.4A and4Bshow a flow diagram of a method for power delivery negotiation400according to one or more embodiments for negotiating between a proprietary power mode, AC power mode and a default power mode, battery mode. The method is carried out in one or more processors on the PD adapter and/or the portable device. The one or more processors have a memory, a communication interface, and a bus. The bus includes a circuit that connects elements, such as switches, a battery, and one or more boosters. The bus transmits communication (data or control messages) between the elements. The one or more processors have a CPU to carry out operations or data processing related to the control and/or communications between the elements. Memory includes volatile and non-volatile memory to store instructions including software programs, executed by the one or more processors to control or manage the devices according to the method described herein.

In a first step402a PD adapter is connected to a portable device, and a default power delivery protocol is communicated between the PD adapter and the portable device. The PD adapter outputs the default power delivery mode, also called the battery mode. In the present example, battery mode is a maximum output of 20V/3A and an amplifier on the portable device only draws power from the battery.

In step404, the PD adapter makes a request for a proprietary protocol from the portable device. In step406, the portable device responds with a vendor identification code, VID, and a product identification code, PID. In step408the PD adapter checks the VID to confirm it has the capability to provide the power necessary from the proprietary protocol. In the event the PD adapter cannot verify the VID, in step410the PD adapter continues to output the default power delivery mode. In the present example, an amplifier on the portable device will continue to draw power only from the battery on the portable device.

In the event the PD adapter can verify the VID provided by the portable device, in step412the PD adapter requests a standard or vendor identification code, SVID, from the portable device. In step414the portable device transmits the SVID to the PD adapter. In step416, the PD adapter checks the SVID to confirm it has the capability to provide the power necessary from the proprietary protocol. In the event the PD adapter cannot verify the SVID, in step410, the PD adapter continues to output the default power delivery mode. In the present example, the amplifier continues to draw power only from the battery.

In the event the PD adapter can verify the SVID, in step418the PD adapter makes a request for an identification (ID) for the proprietary power mode. In this example, the proprietary power mode is 90 W and an amplifier on the portable device will be able to draw power from the AC power provided by the PD adapter to boost the output of the amplifier. In step420, the portable device responds with the ID. In step422, the PD adapter confirms that it can enter the proprietary power mode. In step424, the PD adapter requests confirmation to deliver power according to the proprietary output power mode. In step426, device acknowledges and accepts the request and in step428the PD adapter enters the proprietary output power mode to be received at the portable device.

In the foregoing specification, the present disclosure has been described with reference to specific exemplary embodiments. The specification and figures are illustrative, rather than restrictive, and modifications are intended to be included within the scope of the present disclosure. Accordingly, the scope of the present disclosure should be determined by the claims and their legal equivalents rather than by merely the examples described.

For example, the steps recited in any method or process claims may be executed in any order, may be executed repeatedly, and are not limited to the specific order presented in the claims. Additionally, the components and/or elements recited in any apparatus claims may be assembled or otherwise operationally configured in a variety of permutations and are accordingly not limited to the specific configuration recited in the claims. Any method or process described may be carried out by executing instructions with one or more devices, such as a processor or controller, memory (including non-transitory), sensors, network interfaces, antennas, switches, actuators to name just a few examples.

Benefits, other advantages, and solutions to problems have been described above regarding particular embodiments; however, any benefit, advantage, solution to problem or any element that may cause any particular benefit, advantage, or solution to occur or to become more pronounced are not to be construed as critical, required, or essential features or components of any or all the claims.

The terms “comprise”, “comprises”, “comprising”, “having”, “including”, “includes” or any variation thereof, are intended to reference a non-exclusive inclusion, such that a process, method, article, composition, or apparatus that comprises a list of elements does not include only those elements recited but may also include other elements not expressly listed or inherent to such process, method, article, composition, or apparatus. Other combinations and/or modifications of the above-described structures, arrangements, applications, proportions, elements, materials, or components used in the practice of the present disclosure, in addition to those not specifically recited, may be varied, or otherwise particularly adapted to specific environments, manufacturing specifications, design parameters or other operating requirements without departing from the general principles of the same.