Automatic line and battery operated power supply system

Claim 1

AN AUTOMATIC LINE AND BATTERY OPERATED POWER SUPPLY AND BATTERY CHARGING APPARATUS COMPRISING: A LINE ALTERNATING CURRENT ENERGIZED REGULATED POWER SUPPLY FOR PROVIDING A LOW VOLTAGE DIRECT CURRENT OUTPUT VOLTAGE AND HAVING A POWER SUPPLY OUTPUT TERMINAL; A RECHARGEABLE BATTERY HAVING AN OUTPUT TERMINAL; A CONVERTER INPUT TERMINAL; MEANS, RESPONSIVE TO THE EXISTENCE OF SAID LINE ALTERNATING CURRENT FOR AUTOMATICALLY CONNECTING SAID INPUT TERMINAL TO ONE SELECTIVELY OF SAID POWER SUPPLY AND BATTERY OUTPUT TERMINALS; MEANS COUPLED TO SAID POWER SUPPLY FOR CHARGING SAID BATTERY WHEN SAID CONVERTER INPUT TERMINAL IS CONNECTED TO SAID POWER SUPPLY OUTPUT TERMINAL; A CONVERTER TRANSISTOR NETWORK INCLUDING A SQUARE HYSTERESIS LOOP SATURABLE CORE TRANSFORMER HAVING A CENTER TAPPED PRIMARY WINDING AND A CENTER TAPPED BASE DRIVE WINDING AND AN OUTPUT WINDING, EACH HAVING FIRST AND SECOND TERMINALS; FIRST AND SECOND SWITCHING TRANSISTORS HAVING THEIR COLLECTOR ELECTRODES RESPECTIVELY COUPLED TO SAID FIRST AND SECOND TERMINALS OF SAID PRIMARY WINDING AND HAVING THEIR EMITTER ELECTRODES COUPLED TO A CIRCUIT NODE AND HAVING THEIR CONTROL ELECTRODES COUPLED RESPECTIVELY TO SAID FIRST AND SECOND TERMINALS OF SAID BASE DRIVE WINDING; A RESISTIVELY BY-PASSED CONTROL GATE TRANSISTOR COUPLED BETWEEN THE CENTER TAP OF SAID BASE DRIVE WINDING AND SAID CIRCUIT NODE; MEANS FOR COUPLING SAID CONVERTER INPUT TERMINAL TO SAID CENTER TAP OF SAID PRIMARY WINDING; MEANS FOR COUPLING AT LEAST A PORTION OF THE MAGNITUDE OF THE VOLTAGE SIGNAL AT SAID INPUT TERMINAL TO SAID CENTER TAP OF SAID BASE DRIVE WINDING; UNIDIRECTIONAL CURRENT FLOW MEANS INTERPOSED BETWEEN THE LATTER SAID CENTER TAP AND SAID CONTROL GATE TRANSISTOR FOR ISOLATING SAID SIGNAL FROM SAID GATE TRANSISTOR; A MULTIPLE STAGE VOLTAGE DOUBLER NETWORK HAVING AN OUTPUT TERMINAL AND BEING COUPLED BETWEEN SAID FIRST AND SECOND TERMINALS OF SAID OUTPUT WINDING; RADIO FREQUENCY ISOLATING MEANS INTERCOUPLED BETWEEN SAID DOUBLER NETWORK AND THE LATTER SAID OUTPUT TERMINAL; CONTROL SIGNAL GENERATING MEANS COUPLED BETWEEN SAID SECOND TERMINAL OF SAID OUTPUT WINDING AND SAID CIRCUIT NODE FOR PROVIDING A CONTROL SIGNAL THE MAGNITUDE OF WHICH IS A MEASURE OF THE MAGNITUDE OF CURRENT FLOWING BETWEEN SAID CIRCUIT NODE AND SAID OUTPUT TERMINAL OF SAID DOUBLER NETWORK; COUPLING MEANS FOR IMPRESSING AT LEAST A PORTION OF SAID CONTROL SIGNAL UPON THE CONTROL ELECTRODE OF SAID CONTROL GATE TRANSISTOR; AND A METER NETWORK INCLUDING AN ELECTRIC METER MOVEMENT, A LOGARITHMIC SCALE SHUNTING DIODE COUPLED BETWEEN SAID CIRCUIT NODE AND A GROUND TERMINAL, AND METER SWITCHING MEANS FOR SELECTIVELY CONNECTING SAID MOVEMENT TO SAID BATTERY, TO SAID OUTPUT TERMINAL, TO SAID DOUBLER NETWORK, AND BETWEEN SAID CIRCUIT NODE AND A GROUND TERMINAL.