Power inverting network utilizing thyratronic switches controlled by a saturable transformer

Claim 1

AN INVERTER NETWORK, A FIRST PAIR OF SOURCE TERMINALS ADAPTED TO BE ENERGIZED WITH DIRECT VOLTAGE, A PAIR OF LOAD TERMINALS, FIRST AND SECOND THYRATRONIC SWITCHES, EACH SAID SWITCH HAVING A POWER PATH AND A CONTROL DEVICE FOR RENDERING SAID POWER PATH CONDUCTIVE, A FIRST POWER CONVEYING PATH INTERCONNECTING SAID SOURCE TERMINALS AND SAID LOAD TERMINALS AND INCLUDING SAID POWER PATH OF SAID FIRST SWITCH, A SECOND POWER CONVEYING PATH CONNECTED TO SAID LOAD TERMINALS AND INCLUDING SAID POWER PATH OF SAID SECOND SWITCH, A TRANSFORMER HAVING A PRIMARY WINDING MEANS AND A SECONDARY WINDING MEANS AND A TERTIARY WINDING MEANS, SAID TRANSFORMER FURTHER INCLUDING A MAGNETIC MATERIAL CORE HAVING A HYSTERESIS LOOP OF SUBSTANTIALLY RECTANGULAR CONFIGURATION LINKING SAID WINDING MEANS, MEANS CONNECTING SAID SECONDARY WINDING MEANS TO SAID CONTROL DEVICES IN SUCH POLARITY THAT A FLUX CHANGE IN SAID CORE IN A FIRST DIRECTION TOWARD A FIRST SATURATED CONDITION OF SAID CORE WILL ACTUATE SAID CONTROL DEVICE OF SAID FIRST SWITCH TO RENDER SAID POWER PATH OF SAID FIRST SWITCH CONDUCTIVE AND THAT A FLUX CHANGE IN SAID CORE IN A SECOND DIRECTION TOWARD A SECOND SATURATED CONDITION OF SAID CORE WILL ACTUATE SAID CONTROL DEVICE OF SAID SECOND SWITCH TO RENDER SAID POWER PATH OF SAID SECOND SWITCH CONDUCTIVE, A SECOND PAIR OF SOURCE TERMINALS ADAPTED TO BE ENERGIZED WITH DIRECT VOLTAGE, FIRST AND SECOND VALVE DEVICES, EACH SAID VALVE DEVICE HAVING A POWER CONVEYING PATH AND A CONTROL PATH FOR CONTROLLING THE INITIATION AND TERMINATION OF CURRENT FLOW THROUGH ITS SAID POWER PATH, A PAIR OF CURRENT PATHS CONNECTING SAID PRIMARY WINDING MEANS TO SAID SECOND PAIR OF SOURCE TERMINALS, A FIRST OF SAID CURRENT PATHS INCLUDING SAID POWER PATH OF SAID FIRST VALVE DEVICE AND EFFECTIVE WHEN CONDUCTING TO CHANGE SAID FLUX IN SAID FIRST DIRECTION, A SECOND OF SAID CURRENT PATHS INCLUDING SAID POWER PATH OF SAID SECOND VALVE DEVICE AND EFFECTIVE WHEN CONDUCTING TO CHANGE SAID FLUX IN SAID SECOND DIRECTION, A PAIR OF BIAS VOLTAGE PRODUCING DEVICES, FEEDBACK MEANS CONNECTING SAID TERTIARY WINDING MEANS TO SAID CONTROL PATHS OF SAID VALVE DEVICES AND INCLUDING SAID BIAS DEVICES, SAID FEEDBACK MEANS BEING POLARIZED SUCH THAT A CHANGE IN SAID FLUX IN SAID FIRST DIRECTION RENDERS SAID CONTROL PATH OF SAID FIRST VALVE DEVICE EFFECTIVE TO MAINTAIN ITS SAID POWER PATH CONDUCTIVE AND A CHANGE IN SAID FLUX IN SAID SECOND DIRECTION RENDERS SAID CONTROL PATH OF SAID SECOND VALVE DEVICE EFFECTIVE TO MAINTAIN ITS SAID POWER PATH CONDUCTIVE, A FIRST OF SAID BIAS DEVICES BEING IN CIRCUIT WITH SAID CONTROL PATH OF SAID FIRST VALVE DEVICE AND EFFECTIVE TO OPPOSE ACTUATION OF ITS SAID CONTROL PATH, THE SECOND OF SAID BIAS DEVICES BEING IN CIRCUIT