Multi-purpose and self-polarized power pack

Claim 1

IN A POWER PACK INCLUDING AN ALTERNATING CURRENT SUPPLY, A POLARIZED LOAD, A TRANSFORMER HAVING AN INPUT AND AN OUTPUT, CONNECTED AT ITS INPUT TO SAID SUPPLY, AND FIRST AND SECOND CONTROLLED SEMICONDUCTOR RECTIFIER MEANS EACH HAVING ANODE, CATHODE AND GATE TERMINALS, CONNECTED, RESPECTIVELY, IN OPPOSED POLARITIES WITH SAID TRANSFORMER OUTPUT AND SAID POLARIZED LOAD; THE COMBINATION OF CONTROL MEANS SELECTIVELY APPLYING GATING SIGNALS TO SAID FIRST AND SECOND RECTIFIER MEANS COMPRISING, RESPECTIVELY, FIRST AND SECOND INDUCTIVE WINDING MEANS INDUCTIVELY COUPLED WITH THE OUTPUT OF SAID TRANSFORMER, ADAPTED TO BE CONNECTED IN SERIES BETWEEN THE SAID CATHODE AND GATE TERMINALS OF THE RESPECTIVE ONES OF SAID RECTIFIER MEANS, AND MEANS AUTOMATICALLY RESPONSIVE TO THE POLARITY OF SAID POLARIZED LOAD SELECTIVELY CONNECTING ONE OF SAID INDUCTIVE WINDING MEANS IN SERIES WITH THE RESPECTIVELY ASSOCIATED GATE AND CATHODE TERMINALS OF ONE OF SAID CONTROLLED RECTIFIER MEANS AS A FUNCTION OF THE POLARITY OF SAID POLARIZED LOAD, WHEREBY ONLY THAT ONE OF SAID RECTIFIER MEANS OF COMPATIBLE POLARITY WITH SAID POLARIZED LOAD IS ENERGIZED.