Control circuit including a fast acting transistor regulator in parallel with a slowacting magnetic amplifier regulator

Claim 1

IN A REGULATED POWER SUPPLY SYSTEM WHEREIN A.C. CURRENT FROM A POWER SOURCE IS CONVERTED AND SUPPLIED TO AN OUTPUT BY A TRANSFER CIRCUIT AS D.C. CURRENT, THE IMPROVEMENT THEREIN TO PREVENT OUTPUT FLUCTUATION WHEN THERE ARE SUDDEN CHANGES IN THE LOAD, COMPRISING, A LOW EFFICIENCY DYNAMIC RESPONSE FIRST REGULATING MEANS IN SAID TRANSFER CIRCUIT INCLUDING RECTIFIER MEANS COUPLED TO SAID POWER SOURCE, FILTER MEANS FED BY SAID FILTER MEANS, AND A TRANSISTOR AND LOAD RESISTOR FED BY SAID FILTER MEANS AND RESPONSIVE TO THE SIGNAL APPLIED TO THE CONTROL SIDE OF SAID TRANSISTOR; FIRST SENSING MEANS ACROSS THE OUTPUT AND COUPLED TO SAID TRANSISTOR CONTROL SIDE TO RAPIDLY CHANGE THE CURRENT VALUE SUPPLIED ACROSS SAID TRANSISTOR AND LOAD RESISTOR IN RESPONSE TO CHANGES IN THE OUTPUT LOAD; A HIGH EFFICIENCY SLOW SECOND REGULATING MEANS IN SAID TRANSFER CIRCUIT INCLUDING A MAGNETIC AMPLIFIER REGULATING THE INPUT FROM SAID POWER SOURCE TO SAID SECOND REGULATING MEANS; AND, SECOND SENSING MEANS, SENSING THE CURRENT SUPPLIED ACROSS SAID TRANSISTOR AND LOAD AND COUPLED TO SAID MAGNETIC AMPLIFIER TO CHANGE THE INPUT FROM SAID POWER SOURCE WHEN THERE IS A CHANGE IN THE LOAD, SAID FIRST AND SECOND REGULATING MEANS BEING IN PARALLEL BETWEEN SAID POWER SOURCE AND SAID OUTPUT.