Control rectifiers having timing means energized in response to load effecting commutation

Claim 1

A PULSE POWER SUPPLY COMPRISING, A WELDING TRANSFORMER INCLUDING PRIMARY AND SECONDARY WINDINGS MEANS AND RESET WINDING MEANS, A STATIC SWITCH EFFECTIVE WHEN TURNED ON FOR SUPPLYING LOAD CURRENT FROM A SOURCE OF DIRECT CURRENT VOLTAGE TO SAID PRIMARY WINDING MEANS, A TIMING CIRCUIT OPERABLE A PREDETERMINED TIME AFTER ENERGIZATION THEREOF TO PRODUCE A TIMING SIGNAL, SAID TIMING CIRCUIT BEING CONNECTED ACROSS SAID PRIMARY WINDING MEANS FOR ENERGIZATION IN RESPONSE TO TURN ON OF SAID STATIC SWITCH AND ENERGIZATION OF SAID PRIMARY WINDINGS MEANS, MEANS FOR APPLYING SAID TIMING SIGNAL TO SAID STATIC SWITCH FOR TURNING OFF THE STATIC SWITCH, SAID RESET WINDING MEANS BEING CONNECTED TO BE ENERGIZED FROM SAID SOURCE FOR ESTABLISHING A NORMAL FLUX CONDITION OF SAID TRANSFORMER AND FOR RESETTING THE TRANSFORMER TO ITS NORMAL FLUX CONDITION AFTER SAID STATIC SWITCH IS TURNED OFF, VOLTAGE CLIPPING DEVICE CONNECTED ACROSS SAID PRIMARY WINDING MEANS TO LIMIT THE RESET RATE OF SAID TRANSFORMER, AND MEANS OPERABLE IN RESPONSE TO AN OVERLOAD CONDITION OF LOAD CURRENT TO PRODUCE A CONTROL SIGNAL FOR TURNING OFF SAID STATIC SWITCH.