Electrical master slave amplifier circuit employing silicon controlled rectifiers

Claim 1

A SYMMETRICAL SLAVING CIRCUIT INCLUDING IN COMBINATION A MASTER CONTROLLED UNIDIRECTIONAL CONDUCTING DEVICE HAVING A CONTROL GATE ELEMENT COUPLED TO A SINGLE-ENDED SOURCE OF ELECTRIC CONTROL SIGNALS, A LOAD DEVICE CONNECTED IN SERIES CIRCUIT RELATIONSHIP WITH SAID MASTER CONTROLLED UNIDIRECTIONAL CONDUCTING DEVICE WITH THE SERIES CIRCUIT THUS FORMED BEING ADAPTED TO BE CONNECTED ACROSS THE TERMINALS OF A SOURCE OF ALTERNATING CURRENT POTENTIAL, A CHARGING DEVICE CONNECTED IN PARALLEL CURCUIT RELATIONSHIP WITH SAID MASTER CONTROLLED UNIDIRECTIONAL CONDUCTING DEVICE, AND AT LEAST ONE SLAVE CONTROLLED UNIDIRECTIONAL CONDUCTING DEVICE CONNECTED IN PARALLEL CIRCUIT RELATIONSHIP WITH SAID CHARGING DEVICE AND IN CIRCUIT RELATIONSHIP WITH A LOAD DEVICE AND HAVING A CONTROL GATE ELEMENT OPERATIVELY COUPLED TO THE CHARGING DEVICE WHEREBY SAID CHARGING DEVICE IS CHARGED TO AN ENERGY LEVEL DEPENDENT UPON THE PERIOD OF TIME THAT THE MASTER CONTROLLED UNIDIRECTIONAL CONDUCTING DEVICE IS NONCONDUCTING DURING ONE-HALF CYCLE OF THE ALTERNATING CURRENT SUPPLY AND THE CHARGING DEVICE HOLDS OFF FIRING OF THE SLAVE CONTROLLED UNIDIRECTIONAL CONDUCTING DEVICE FOR AN EQUAL PERIOD OF THE REMAINING HALF CYCLE OF THE ALTERNATING CURRENT SUPPLY.