Proportional power control systems

Claim 1

IN A CIRCUIT INCLUDING A LOAD AND A SOURCE OF ALTERNATING CURRENT FOR SUPPLYING POWER TO SAID LOAD, A POWER REGULATING CIRCUIT FOR REGULATING THE POWER FED FROM SAID SOURCE OF SAID LOAD COMPRISING: ELECTRONIC SWITCH MEANS HAVING CATHODE AND ANODE TERMINALS CONNECTED IN SERIES BETWEEN SAID LOAD AND A SOURCE OF ALTERNATING CURRENT, SAID ELECTRONIC SWITCH MEANS HAVING A CONTROL TERMINAL WHICH EFFECTS UNCONTROLLED CONDUCTION OF THE ASSOCIATED ELECTRONIC SWITCH MEANS WHEN A CONTROL VOLTAGE OF AT LEAST A GIVEN THRESHOLD VALUE IS FED THERETO AND THE VOLTAGE FED TO SAID CATHODE AND ANODE TERMINALS FROM SAID SOURCE OF ALTERNATING CURRENT IS OF A GIVEN POLARITY, LOAD RESPONSIVE MEANS RESPONSIVE TO THE POWER FED TO SAID LOAD AND AN ADJUSTABLE PRESET STANDARD GENERATING A DIRECT CURRENT VOLTAGE WHOSE MAGNITUDE IS AT LEAST AS GREAT AS SAID THRESHOLD VALUE AND WHICH IS A FUNCTION OF THE DIFFERENCE BETWEEN THE ACTUAL AND DESIRED POWER FLOWING IN SAID LOAD, A CAPACITOR CHARGE CIRCUIT FED BY THE OUTPUT OF SAID LOAD RESPONSIVE MEANS AND INCLUDING A CAPACITOR WHICH GRADUALLY CHARGES TOWARD SAID THRESHOLD VALUE, MEANS FOR SUPERIMPOSING ON THE CAPACITOR CHARGE WAVEFORM OF SAID CAPACITOR A SERIES OF PULSES OF A FIXED AMPLITUDE, A PEAK OF EACH SUPERIMPOSED PULSE AT LEAST REACHING THE BASE OF THE NEXT SUCCEEDING SUPERIMPOSED PULSE, AND THE PULSE OCCURRING COINCIDENT WITH THE INITIATION OF NEW HALF CYCLES OF THE OUTPUT OF SAID SOURCE OF ALTERNATING CURRENT, MEANS FOR COUPLING THE COMPOSITE CAPACITOR CHARGE WAVEFORM TO THE CONTROL TERMINAL OF SAID ELECTRONIC SWITCH MEANS TO EFFECT THE TRIGGERING THEREOF WHEN THE PEK VALUE OF ONE OF THE SUPERIMPOSED PULSES REACHES SAID THRESHOLD VALUE, OCCURRING IN A TIME WHICH IS THE FUNCTION OF THE SLOPE OF SAID WAVEFORM, IN TURN DEPENDENT UPON THE MAGNITUDE OF THE DIRECT CURRENT OUTPUT OF SAID LOAD RESPONSIVE MEANS, THE CONDUCTION OF SAID ELECTRONIC SWITCH MEANS THEREBY LASTING FOR A FULL HALF CYCLE, AND MEANS RESPONSIVE TO THE CONDUCTION OF SAID ELECTRONIC SWITCH MEANS FOR DISCHARGING SAID CAPACITOR TO INITIATE A NEW CAPACITOR CHARGE CYCLE.