Step up cycloconverter with harmonic distortion reducing means

Claim 1

A STEP UP CYCLOCONVERTER FOR CONVERTING LOW FREQUENCY ALTERNATING CURRENT TO HIGH FREQUENCY ALTERNATING CURRENT COMPRISING: (A) A SOURCE OF LOW FREQUENCY ALTERNATING CURRENT; (B) A SERIES INVERTER CONNECTED TO SAID LOW FREQUENCY SOURCE FOR CONVERTING SAID LOW FREQUENCY AC TO HIGH FREQUENCY AC; (C) A TRANSFORMER HAVING ITS PRIMARY WINDING CONNECTED TO SAID SERIES INVERTER AND HAVING ITS SECONDARY WINDING CONNECTED TO A LOAD, AT LEAST ONE OF SAID WINDINGS HAVING A PLURALITY OF TAPS AND HAVING A PAIR OF SILICON CONTROLLED RECTIFIERS CONNECTED IN BACK OF BACK RELATIONSHIP TO EACH TAP; (D) A RECTIFIER CONNECTED TO SAID LOW FREQUENCY ALTERNATING CURRENT SOURCE FOR PRODUCING A PULSATING DC OUTPUT; (E) A PULSE GENERATOR CONNECTED TO SAID RECTIFIER AND SYNCHRONIZED WITH SAID RECTIFIER TO PRODUCE A PULSE EVERY TIME THE PULSATING DC HAS AN INSTANTANEOUS VALUE OF ZERO; (F) A PLURALITY OF CLOCKED BISTABLE MULTIVIBRATORS CONNECTED TO AND SYNCHRONIZED WITH SAID PULSE GENERATOR FOR GENERATING A PLURALITY OF PULSE TRAINS; (G) GATING MEANS CONNECTED TO SAID CLOCKED BISTABLE MULTIVIBRATORS AND RESPONSIVE TO SAID PULSE TRAINS FOR COMBINING SAID PULSE TRAINS TO PRODUCE A SIGNAL DEPENDENT ON THE PERIODICITY OF SAID PULSE TRAINS; AND (H) DRIVING MEANS CONNECTED TO SAID GATING MEANS AND TO SAID SILICON CONTROLLED RECTIFIERS AND RESPONSIVE TO THE SIGNAL OUTPUT OF SAID GATING MEANS FOR CONTROLLABLY ENERGIZING SAID SILICON CONTROLLED RECTIFIERS.