Drive system for static inverters

Claim 1

A CIRCUIT FOR CONVERTING THE OUTPUT OF A UNIDIRECTIONAL POTENTIAL SOURCE TO AN ALTERNATING CURRENT OUTPUT COMPRISING FIRST AND SECOND CURRENT TRANSFORMERS, EACH COMPRISING A PLURALITY OF TRANSFORMER COUPLED WINDINGS, AN OUT PUT TRANSFORMER HAVING A PRIMARY WINDING AND A SECONDARY WINDING, A FIRST SERIES ARRANGEMENT OF ONE HALF OF SAID PRIMARY WINDING, A FIRST OF SAID FIRST CURRENT TRANSFORMER WINDINGS AND A FIRST TRANSISTOR CONNECTED ACROSS SAID SOURCE, A SECOND SERIES ARRANGEMENT OF THE OTHER HALF OF SAID PRIMARY WINDING, A FIRST OF SAID SECOND CURRENT TRANSFORMER WINDINGS, AND A SECOND TRANSISTOR CONNECTED ACROSS SAID SOURCE, A LOAD CONNECTED ACROSS SAID SECONDARY WINDING, A SECOND OF SAID FIRST CURRENT TRANSFORMER WINDINGS CONNECTED IN THE INPUT OF SAID FIRST TRANSISTOR, A SECOND OF SAID SECOND CURRENT TRANSFORMER WINDINGS CONNECTED IN THE INPUT OF SAID SECOND TRANSISTOR, RECTANGULAR WAVE GENERATING MEANS IN CIRCUIT WITH THE RESPECTIVE INPUTS OF SAID TRANSISTORS FOR ALTERNATELY SUPPLYING A SMALL PORTION OF DRIVE TO SAID TRANSISTORS DURING SUCCESSIVE HALF CYCLES OF OUTPUT FROM SAID GENERATING MEANS, SAID CURRENT TRANSFORMER WINDINGS BEING SO POLED AS TO REGENERATIVELY PROVIDE CURRENT DRIVE TO A TRANSISTOR RENDERED CONDUCTIVE BY SAID GENERATING MEANS, A FIRST GATE CONTROLLED RECTIFIER IN CIRCUIT WITH THE INPUT OF SAID FIRST TRANSISTOR, SAID SECOND WINDING OF SAID FIRST CURRENT TRANSFORMER AND SAID GENERATING MEANS WHICH IS GATED INTO CONDUCTIVITY UPON THE INITIALLY RENDERING CONDUCTIVE OF SAID SECOND TRANSISTOR, A SECOND GATE CONTROLLED RECTIFIER IN CIRCUIT WITH THE INPUT OF SAID SECOND TRANSISTOR, SAID SECOND WINDING OF SAID SECOND CURRENT TRANSFORMER AND SAID GENERATING MEANS WHICH IS GATED INTO CONDUCTIVITY UPON THE INITIALLY RENDERING CONDUCTIVE OF SAID FIRST TRANSISTOR, FIRST AND SECOND PUMPBACK DIODES RESPECTIVELY CONNECTED ACROSS SAID FIRST AND SECOND SERIES ARRANGEMENT, AND MEANS IN CIRCUIT WITH SAID FIRST AND SECOND CURRENT TRANSFORMERS FOR RESPECTIVELY RESETTING SAID LAST-NAMED TRANSFORMERS.