Automatic error sensing point switching circuits for electronically regulated power supply

Claim 1

A DIRECT CURRENT REGULATED POWER SUPPLY SYSTEM, COMPRISING: A SOURCE OF UNREGULATED DIRECT CURRENT HAVING FIRST AND SECOND SUPPLY TERMINALS; FIRST AND SECOND OUTPUT TERMINALS FOR SUPPLYING POWER TO A LOAD CIRCUIT; A REGULATOR CIRCUIT HAVING AN INPUT FOR RECEIVING CONTROL SIGNALS AND HAVING A CONTROLLABLE CIRCUIT PATH DISPOSED IN SERIES BETWEEN SAID FIRST SUPPLY TERMINAL AND SAID FIRST OUTPUT TERMINAL; OVERCURRENT MEANS FOR LIMITING THE CURRENT DRAWN FROM SAID SOURCE, SAID OVERCURRENT MEANS BEING DISPOSED IN SERIES BETWEEN SAID SECOND SUPPLY TERMINAL AND SAID SECOND OUTPUT TERMINAL WHEREBY ANY INCREASE OF CURRENT IN SAID LOAD CIRCUIT PRODUCES AN INCREASE IN VOLTAGE DROP ACROSS SAID OVERCURRENT MEANS; VOLTAGE DIVIDING MEANS DISPOSED BETWEEN SAID FIRST AND SECOND SUPPLY TERMINALS, FOR SUPPLYING A THRESHOLD VOLTAGE; A PAIR OF DIODES HAVING FIRST ELECTRODES AND SECOND ELECTRODES AND BEING IN SERIES WITH SAID FIRST ELECTRODES CONNECTED TOGETHER; AN ELECTRICAL CONNECTION FROM THE SECOND ELECTRODE OF ONE OF SAID DIODES TO SAID THRESHOLD VOLTAGE FROM SAID DIVIDING MEANS; AN ELECTRICAL CONNECTION FROM THE SECOND ELECTRODE OF THE OTHER OF SAID DIODES TO SAID SECOND OUTPUT TERMINAL; AND MEANS FOR SUPPLYING SAID INPUT OF SAID REGULATOR CIRCUIT FROM SAID FIRST ELECTRODES OF SAID DIODES, THEREBY TO AFFORD AUTOMATIC SWITCHING OF THE EFFECTIVE SIGNAL INPUT TO SAID INPUT OF SAID REGULATOR CIRCUIT FROM SAID OUTPUT TERMINALS TO SAID SUPPLY TERMINALS THROUGH SAID DIVIDING MEANS WHENEVER SAID VOLTAGE DROP ACROSS SAID OVERCURRENT MEANS EXCEEDS SAID THRESHOLD VOLTAGE.