Magnetic amplifier circuit

Claim 1

A MAGNETIC AMPLIFIER CIRCUIT FOR CONTROLLING THE ENERGIZATION OF A LOAD COMPRISING A PAIR OF MAGNETIC AMPLIFIERS, EACH OF SAID MAGNETIC AMPLIFIERS HAVING A CORE, A CONTROL WINDING, A BIAS WINDING AND A GATE WINDING, A SUPPLY TRANSFORMER HAVING A PRIMARY WINDING AND A CENTER-TAPPED SECONDARY WINDING, A LOAD TRANSFORMER HAVING A CENTER-TAPPED PRIMARY WINDING AND A SECONDARY WINDING, CIRCUIT MEANS INTERCONNECTING THE CENTER TAPS OF SAID SECONDARY WINDIN OF SAID SUPPLY TRANSFORMER AND SAID PRIMARY WINDING OF SAID LOAD TRANSFORMER, A SOURCE OF ALTERNATING CURRENT SUPPLY VOLTAGE CONNECTED TO SAID PRIMARY WINDING OF SAID SUPPLY TRANSFORMER, THE GATE WINDING OF ONE OF SAID MAGNETIC AMPLIFIERS BEING CONNECTED BETWEEN ONE END TERMINAL OF SAID SECONDARY WINDING OF SAID SUPPLY TRANSFORMER AND ONE END TERMINAL OF SAID PRIMARY WINDING OF SAID LOAD TRANSFORMER, THE GATE WINDING OF THE OTHER OF SAID MAGNETIC AMPLIFIERS BEING CONNECTED BETWEEN THE OTHER END TERMINAL OF SAID SECONDARY WINDING OF SAID SUPPLY TRANSFORMER AND THE OTHER END TERMINAL OF SAID PRIMARY WINDING OF SAID LOAD TRANSFORMER, THE BIAS WINDINGS OF SAID MAGNETIC AMPLIFIERS BEING CONNECTED IN PARALLEL ACROSS THE END TERMINALS OF SAID SECONDARY WINDING OF SAID SUPPLY TRANSFORMER, RECTIFIER MEANS ENABLING CURRENT FLOW THROUGH SAID GATE WINDINGS ONLY DURING HALF CYCLES OF ONE POLARITY OF SAID SUPPLY VOLTAGE, A SOURCE OF CONTROL POTENTIAL, SAID CONTROL WINDINGS OF SAID MAGNETIC AMPLIFIERS BEING CONNECTED WITH SAID SOURCE OF CONTROL POTENTIAL IN A MANNER TO VARY THE IMPEDANCE OF SAID MAGNETIC AMPLIFIERS IN RESPONSE TO CONTROL SIGNALS FROM SAID SOURCE OF CONTROL POTENTIAL TO PERMIT THE CORE OF ONE OF SAID MAGNETIC AMPLIFIERS TO BE SATURATED FOR LONGER PORTIONS OF HALF CYCLES OF ONE POLARITY OF SAID SUPPLY VOLTAGE WHILE THE CORE OF SAID OTHER OF SAID MAGNETIC AMPLIFIERS IS SATURATED FOR SHORTER PORTIONS OF HALF CYCLES OF SAID ONE POLARITY OF SAID SUPPLY VOLTAGE, SAID CIRCUIT MEANS COMPRISING A HIGH IMPEDANCE PATH, A LOW IMPEDANCE PATH, AND MEANS FOR SELECTIVELY RENDERING EFFECTIVE SAID HIGH IMPEDANCE PATH AND SAID LOW IMPEDANCE PATH.