Transistor voltage regulator

Claim 1

A DIRECT CURRENT VOLTAGE REGULATOR INCLUDING IN COMBINATION, INPUT SUPPLY TERMINALS, OUTPUT TERMINALS FOR CONNECTION TO A LOAD, A CONTROL TRANSISTOR CONNECTED BETWEEN SAID INPUT AND SAID OUTPUT TERMINALS, A ZENER DIODE FOR SUPPLYING A REFERENCE VOLTAGE, SAID CONTROL TRANSISTOR BEING COUPLED TO SAID ZENER DIODE AND OPERATIVE TO APPLY CURRENT TO ONE OF SAID OUTPUT TERMINALS SUBSTANTIALLY TO ELIMINATE CHANGES IN VOLTAGE ACROSS THE LOAD IN RESPONSE TO A DETECT DIFFERENCE BETWEEN THE OUTPUT VOLTAGE AND THE REFERENCE VOLTAGE SUPPLIED BY THE VOLTAGE DROP ACROSS SAID ZENER DIODE, A SWITCHING TRANSISTOR HAVING BASE, EMITTER AND COLLECTOR ELECTRODES, SAID COLLECTOR ELECTRODE BEING COUPLED TO ONE SIDE OF SAID ZENER DIODE, AND FIRST AND SECOND RESISTORS CONNECTED IN SERIES BETWEEN SAID BASE AND EMITTER ELECTRODES OF SAID SWITCHING TRANSISTOR AND PRODUCING A RESULTANT VOLTAGE TO NORMALLY BIAS OFF SAID SWITCHING TRANSISTOR, SAID FIRST RESISTOR BEING COUPLED ACROSS SAID OUTPUT TERMINALS AND HAVING A FIRST VOLTAGE DEVELOPED THEREACROSS WHICH VARIES DIRECTLY WITH THE OUTPUT VOLTAGE, SAID SECOND RESISTOR BEING COUPLED TO ONE OF SAID OUTPUT TERMINALS AND HAVING A SECOND VOLTAGE DEVELOPED THEREACROSS WHICH VARIES DIRECTLY WITH THE OUTPUT CURRENT APPLIED TO THE LOAD, SAID SECOND VOLTAGE BEING OF OPPOSITE POLARITY TO SAID FIRST VOLTAGE AND EXCEEDING SAID FIRST VOLTAGE UPONTHE OCCURRENCE OF A SIMULTANEOUS DECREASE IN OUTPUT VOLTAGE AND INCREASE IN OUTPUT CURRENT TO PROVIDE A RESULTANT BIAS VOLTAGE WHICH RENDERS SAID SWITCHING TRANSISTOR CONDUCTING, SAID SWITCHING TRANSISTOR REDUCING THE VOLTAGE ACROSS SAID ZENER DIODE TO CUT OFF SAID CONTROL TRANSISTOR.