Regulator circuitry

Claim 1

IN A POWER SUPPLY OF THE TYPE ADAPTED TO SUPPLY AN OUTPUT VOLTAGE DETERMINED BY THE WIDTH OF PULSES FROM A POWER CIRCUIT AND HAVING OUTPUT TERMINALS; THE COMBINATION OF PULSE WIDTH CHANGING MEANS, CONTROLLING MEANS OPERATIVELY ASSOCIATED WITH SAID PULSE WIDTH CHANGING MEANS TO VARY THE WIDTH OF PULSES GENERATED IN ACCORDANCE WITH CURRENT FLOW THROUGH SAID CONTROLLING MEANS, VARIABLE CONDUCTING MEANS, MEANS FOR CONNECTING SAID VARIABLE CONDUCTING MEANS TO SAID CONTROLLING MEANS IN CURRENT CONDUCTING RELATIONSHIP, OUTPUT VOLTAGE RESPONSIVE MEANS, MEANS FOR CONNECTING SAID OUTPUT VOLTAGE RESPONSIVE MEANS TO SAID VARIABLE CONDUCTING MEANS TO VARY THE CONDUCTION THEREOF TO THEREBY VARY THE WIDTH OF PULSES FROM THE POWER CIRCUIT IN ACCORDANCE WITH THE TENDENCY TO CHANGE OF OUTPUT VOLTAGE, A RESISTOR CONNECTED SERIALLY BETWEEN THE POWER CIRCUIT AND ONE OF SAID OUTPUT TERMINALS, VOLTAGE DROPPING MEANS HAVING A VOLTAGE PROPORTIONAL TO THE OUTPUT VOLTAGE OF THE POWER CIRCUIT, MEANS FOR CONNECTING SAID RESISTOR TO SAID VARIABLE CONDUCTING MEANS IN POWER CONDUCTING RELATIONSHIP AND MEANS FOR CONNECTING SAID VOLTAGE DROPPING MEANS BETWEEN SAID RESISTOR AND SAID VARIABLE CONDUCTING MEANS IN CONDUCTION CONTROL RELATIONSHIP WHEREBY AN OVERLOAD GREATER THAN A PREDETERMINED VALUE CAUSES THE VARIABLE CONDUCTING MEANS TO VARY IN CONDUCTION THEREBY REDUCING THE WIDTH OF PULSES FROM THE POWER CIRCUIT TO REDUCE THE OUTPUT VOLTAGE.