Regulated inverter circuit

Claim 1

A CIRCUIT FOR CONVERTING A D.C. VOLTAGE INTO AN A.C. VOLTAGE COMPRISING: A TRANSFORMER HAVING A CENTER-TAPPED PRIMARY WINDING AND A SECONDARY WINDING; FIRST AND SECOND RECTIFIERS, EACH HAVING ONE ELECTRODE OF EACH OF AT LEAST TWO KINDS OF ELECTRODES DESIGNATED THE ANODE AND CATHODE ELECTRODES, SAID RECTIFIERS BEING CONNECTED BY SAID FIRST KIND OF ELECTRODES TO OPPOSITE ENDS OF SAID PRIMARY WINDING; A CAPACITOR CONNECTED BETWEEN THE SECOND SAID KIND OF ELECTRODES OF SAID RECTIFIERS; THIRD AND FOURTH RECTIFIERS, EACH HAVING ONE ELECTRODES OF EACH OF SAID TWO KINDS OF ELECTRODES AND EACH HAVING A CONTROL ELECTRODE, SAID THIRD AND FOURTH RECTIFIERS HAVING THEIR SECOND SAID KIND OF ELECTRODES CONNECTED TOGETHER, AND THE FIRST KIND OF ELECTRODE OF SAID THIRD AND FOURTH RECTIFIERS BEING CONNECTED TO OPPOSITE TERMINALS OF SAID CAPACITORS; A SOURCE OF CYCLIC CONTROL VOLTAGE, CONNECTED TO APPLY PHASE-OPENING VOLTAGE TO SAID CONTROL VOLTAGE ELECTRODES; AN INDUCTOR CONNECTED BY A FIRST TEMINAL TO THE SECOND SAID KIND OF ELECTRODE OF SAID THIRD AND FOURTHE RECTIFIERS; FIRST, SECOND, THIRD AND FOURTH CLAMPING DIODES EACH HAVING ONE ELECTRODE OF EACH OF SAID TWO KINDS OF ELECTRODES, THE FIRST SAID KIND OF ELECTRODE OF SAID CLAMPING DIODE BEING CONNECTED TOGETHER TO THE SECOND TERMINAL OF SAID INDUCTOR, THE SECOND SAID KIND OF ELECTRODE OF SAID FIRST AND SECOND CLAMPING DIODES BEING CONNECTED TO OPPOSITE ENDS OF SAID PRIMARY WINDING, THE SECOND SAID KIND OF ELECTRODE OF SAID THIRD AND FOURTH DIODE BEING CONNECTED TO OPPOSITE TERMINALS OF SAID CAPACITORS; AND A SOURCE OF D.-C. VOLTAGE CONNECTED BETWEEN SAID CENTER TAP AND THE SECOND TERMINAL OF SAID INDUCTOR.