Patent ID: 9381592
Filing Date: 2016-07-05
CPC Classification: A01K,B23K,H02M,Y02P

Claim Text:
1. A welding-type system, for receiving at least one three phase input voltage on a first power input, a second power input and a third power input, comprising: a first power module comprising a first pair of input connections, a first single phase boost power circuit, and a first output circuit receiving an output of the first single phase boost power circuit, and wherein the first output circuit provides a first output; a second power module comprising a second pair of input connections, a second single phase boost power circuit, and a second output circuit receiving an output of the second single phase boost power circuit, and wherein the second output circuit provides a second output; a third power module comprising a third pair of input connections, a third single phase boost power circuit, and a third output circuit receiving an output of the third single phase boost power circuit, and wherein the third output circuit provides a third output; a weld output circuit, disposed to receive and combine the first, second and third outputs; a controller, connected to control the first, second and third power modules; and an input power distribution module, configurable to connect the first, second and third pair of input connections to the first, second and third power inputs such that the first, second and third pair of input connections each receive a unique single phase power signal, wherein the controller includes an input control module connected to control the input power distribution module; and wherein the input power distribution module comprises: a first power switch disposed to connect and disconnect the first power input and a one of the first pair of input connections; a connection between the second power input and another of the first pair of input connections; a second power switch disposed to connect and disconnect the second power input and a one of the second pair of input connections; a third power switch disposed to connect and disconnect the first power input and a one of the third pair of input connections; a first relay disposed to selectively connect one of the second and third power inputs to another of the third pair of input connection; and a second relay disposed to selectively connect one of the first and third power inputs to another of the second pair of input connection; wherein the controller includes an input control module connected to control the first and second relays.