Engine driven welder-generator with chopper circuit

摘要

An engine driven welder-generator including a chopper circuit and being adapted to produce an AC weld output, a DC weld output, and an auxiliary output is provided. The engine driven welder-generator is capable of selectively running at a low engine speed or a high engine speed based on operator inputs and may produce both AC and DC power outputs while utilizing the chopper circuit. The engine driven welder-generator is also adapted to provide an auxiliary output during an AC welding process and a DC welding process.

主权项

1. An engine driven welder-generator, comprising:
an engine; a single generator in operation driven by the engine and having stator windings to produce AC output power; power conversion circuitry comprising a rectifier and a chopper in operation to convert a portion of the AC output power to DC welding power for a DC welding load; synthetic auxiliary power circuitry configured in operation to convert a portion of the AC output power to synthetic auxiliary power for an auxiliary power load; and a controller configured in operation to control speed of the engine based upon the DC welding load and the auxiliary power load.