POWER SUPPLY FOR WELDING, MOTOR STARTERS AND CHARGING ACCUMULATOR BATTERIES Russian patent published in 1995 - IPC

FIELD: electric devices. SUBSTANCE: device has matching transformer 1, controlled rectifier 7, current sensors 8 and 9, first two-state switch 10, RC- circuit 11, smoothing choke 14, second two-state switch 17, clock generator 18, pulse-phase control system 19 having regulators of current and voltage, current setter 20, voltage setter 21, output current clipping resistor 22. Device provides welding high-quality mode with stabilized electric current and automatic current clipping. Welding arc is easily discharged and device operates in all range of regulation of welding current. In addition device provides modes for automatic charging accumulator batteries and mode for starting motors. EFFECT: increased functional capabilities, increased field of application. 3 cl, 1 dwg