Regulated power supply

Claim 1

IN A SUPPLY TO DELIVER DIRECT CURRENT TO FIRST AND SECOND INPUT TERMINALS OF A LOAD, A TRANSFORMER HAVING A PRIMARY WINDING COUPLED TO AN ALTERNATING CURENT SOURCE AND A SECONDARY WINDING, SAID SECONDARY WINDING HAVING A COMMON RETURN TAP AS WELL AS FIRST AND SECOND TAPS TO FURNISH CURRENT OF LIKE POLARITY AND PHASE AT A FIRST VOLTAGE AND A SECOND, HIGHER VOLTAGE, RESPECTIVELY. MEANS TO DIRECTLY CONNECT SAID COMMON TAP TO SAID FIRST LOAD TERMINAL AND TO DIRECTLY CONNECT SAID FIRST AND SAID SECOND TRANSFORMER TAPS TO SAID SECOND LOAD TERMINAL, SAID MEANS INCLUDING A DIODE SERIALLY CONNECTED BETWEEN SAID FIRST TAP AND SAID SECOND LOAD TERMINAL NORMALLY EFFECTIVE TO CONDUCT CURRENT THERETHROUGH IN A FORWARD DIRECTION TO SAID LOAD, SAID MEANS ALSO INCLUDING A RECTIFIER HAVING A CONTROL ANODE, MEANS CONNECTED ACROSS SAID LOAD TERMINALS EFFECTIVE IN RESPONSE TO THE REDUCTION OF VOLTAGE THEREAT BELOW A PREDETERMINED VALUE TO APPLY A SIGNAL TO SAID CONTRO ANODE, SAID RECTIFIER BEING SERIALLY CONNECTED BETWEEN SAID SECOND TRANSFORMER TAP AND SAID SECOND LOAD TERMINAL AND EFFECTIVE UPON THE APPLICATION OF A SIGNAL TO SAID ELECTRODE TO CONDUCT CURRENT THERETHROUGH IN THE SAME DIRECTION WITH RESPECT TO SAID LOAD AS SAID DIODE, SAID RECTIFIER BEING EFFECTIVE IN CONDUCTIVE STATE TO PROVIDE CURRENT TO SAID LOAD, AND MEANS COUPLING SAID RECTIFIER TO SAID DIODE TO APPLY REVERSE VOLTAGE TO SAID FIRST DIODE DURING THE TIME SAID RECTIFIER IN CONDUCTING CURRENT.