Transistor power supply

Claim 1

A TRANSISTOR POWER SUPPLY HAVING AN OUTPUT TO WHICH A LOAD MAY BE CONNECTED, SAID POWER SUPPLY INCLUDING A SERIES REGULATING TRANSISTOR CONTROLLING THE VOLTAGE AND CURRENT APPLIED TO THE LOAD, A BALANCED DIFFERENTIAL AMPLIFIER INCLUDING A BRIDGE CIRCUIT HAVING A FIRST CURRENT LIMITING MEANS IN ONE ARM, A SECOND CURRENT LIMITING MEANS IN THE ADJACENT ARM, A THIRD CURRENT LIMITING MEANS IN A THIRD ARM OPPOSED TO SAID FIRST ARM AND A FOURTH CURRENT LIMITING MEANS IN A FOURTH ARM, SAID FOURTH CURRENT LIMITING MEANS HAVING AN IMPEDANCE MEANS IN SERIES THEREWITH, A CONSTANT CURRENT SUPPLY CONNECTED TO SAID IMPEDANCE MEANS TO PROVIDE A CONSTANT REFERENCE VOLTAGE THEREACROSS, SAID OUTPUT TERMINALS BEING CONNECTED RESPECTIVELY TO THE JUNCTION BETWEEN THE FIRST AND FOURTH ARMS AND THE ADJACENT AND THIRD ARMS OF SAID BRIDGE, THE VOLTAGE ACROSS SAID FOURTH CURRENT LIMITING MEANS BEING IN OPPOSITION TO THAT ACROSS SAID IMPEDANCE MEANS, SAID DIFFERENTIAL AMPLIFIER INCLUDING A FIRST AND SECOND TRANSISTOR EACH HAVING A BASE CONNECTED RESPECTIVELY TO THE JUNCTIONS BETWEEN SAID FIRST AND ADJACENT ARMS AND SAID THIRD AND FOURTH ARMS, SAID FOURTH CURRENT LIMITING MEANS BEING OF MUCH GREATER VALUE THAN SAID FIRST CURRENT LIMITING MEANS TO RENDER SAID FIRST TRANSISTOR MUCH MORE SENSITIVE TO VOLTAGE CHANGES THAN SAID SECOND TRANSISTOR, WHEREBY UPON VARIATION IN THE CURRENT REQUIREMENTS OF THE LOAD TO EFFECT UNBALANCE OF THE BRIDGE, THE BASE DRIVE OF SAID SECOND TRANSISTOR WILL BE SUBSTANTIALLY UNAFFECTED AND THE CURRENT FLOW THROUGH THE FIRST TRANSISTOR WILL RAPIDLY CHANGE IN INVERSE RELATION TO THE CHANGE IN THE CURRENT REQUIREMENT OF THE LOAD, THE OUTPUT OF SAID FIRST TRANSISTOR BEING ELECTRICALLY CONNECTED TO SAID SERIES REGULATING TRANSISTOR TO CONTROL THE CURRENT FLOW THERETHROUGH IN DIRECT RELATION TO THE CURRENT REQUIREMENT OF THE LOAD SO THAT THE VOLTAGE ACROSS THE SERIES REGULATING TRANSISTOR WILL VARY IN INVERSE RELATION TO THE REQUIREMENTS OF THE LOAD, MEANS TO RESTORE SAID BRIDGE TO BALANCE SUBSTANTIALLY IMMEDIATELY AFTER UNBALANCE THEREOF AND MEANS CONTROLLED BY A PREDETERMINED REDUCTION IN THE VOLTAGE ACROSS THE LOAD ACROSS THE OUTPUT TO EFFECT CUT OFF OF SAID SERIES REGULATING TRANSISTOR WHEREBY THE CURRENT SUPPLIED TO THE LOAD WILL BE SUBSTANTIALLY CUT OFF.