Transistorized regulated d.c.-d.c. converter

Claim 1

A D.C. TO D.C. CONVERTER OF THE TYPE HAVING A PAIR OF TRANSISTORS CONNECTED WITH THEIR OUTPUT CIRCUITS CONNECTED ACROSS RESPECTIVE HALVES OF A FIRST WINDING ON A SATURABLE TRANSFORMER, AND THEIR INPUT CIRCUITS CONNECTED ACROSS RESPECTIVE HALVES OF A FEEDBACK WINDING ON SAID TRANSFORMER, MEANS FOR ENERGIZING SAID OUTPUT CIRCUITS THROUGH SAID FIRST WINDING FROM A SOURCE OF DIRECT CURRENT POTENTIAL, SAID TRANSISTORS BEING SELECTIVELY DRIVEN CONDUCTIVE AND NONCONDUCTIVE RESPONSIVE TO SATURATION OF SAID TRANSFORMER TO PRODUCE AN ALTERNATING CURRENT VOLTAGE ACROSS SAID FIRST WINDING, THE IMPROVEMENT COMPRISING; A CONTROL WINDING MAGNETICALLY COUPLED TO SAID TRANSFORMER; A RECTIFIER CIRCUIT CONNECTED ACROSS SAID CONTROL WINDING FOR DEVELOPING A DIRECT CURRENT CONTROL POTENTIAL RELATED TO THE SAID ALTERNATING CURRENT POTENTIAL; A FIRST CONTROL TRANSISTOR ARRANGED TO AMPLIFY AND INVERT SAID CONTROL POTENTIAL; A SECOND CONTROL TRANSISTOR HAVING AN INPUT CIRCUIT COUPLED TO SAID FIRST CONTROL TRANSISTOR AND AN OUTPUT CONNECTED IN COMMON WITH SAID RESPECTIVE HALVES OF SAID FEEDBACK WINDING WHEREBY VARIATIONS IN THE IMPEDANCE OF SAID SECOND CONTROL TRANSISTOR OUTPUT CIRCUIT ARE EFFECTIVE TO VARY THE TRANSLATION CHARACTERISTICS OF SAID PAIR OF TRANSISTORS, SAID CONTROL POTENTIAL ALSO SUPPLYING OPERATING VOLTAGE FOR SAID FIRST CONTROL TRANSISTOR.