A perfected welding power supply source. (Machine-translation by Google Translate, not legally binding)

摘要

An improved welding power source, which includes a transformer to convert an applied high voltage ac input into a low voltage alternating current having a current range of up to approximately 400 amps, and a bridge rectifier circuit full wave to convert said low voltage alternating current into a direct current output for said current source, characterized by the improvement consisting in that said full wave bridge rectifying circuit includes at least two controlled silicon rectifying means to control the conduction of said complete wave bridge rectifier circuit and for simultaneously rectifying said low voltage alternating current, and further comprising excitation means responsive to a control signal for driving each of said controlled silicon rectifying means during each cycle of alternating current, and to de-energize said controlled silicon rectifier means upon termination of said command signal. (Machine-translation by Google Translate, not legally binding)