Saturable reactor current control system

Claim 1

A CONSTANT CURRENT REGULATOR FOR AN ELECTRICAL DEVICE HAVING AN OUTPUT D.-C. CURRENT AND OUTPUT D.-C VOLTAGE; SAID ELECTRICAL DEVICE HAVING AN OUTPUT VOLTAGE CONTROL MEANS RESPONSIVE TO AN INPUT SIGNAL FOR CONTROLLING THE OUTPUT VOLTAGE THEREOF; SAID CONSTANT CURRENT REGULATOR INCLUDING OUTPUT D.-C. CURRENT MEASURING MEANS, OUTPUT D.-C. VOLTAGE MEASURING MEANS, FIRST CONTROL CIRCUIT MEANS CONNECTED TO SAID OUTPUT D.-C. VOLTAGE MEASURING MEANS, AND SECOND CONTROL CIRCUIT MEANS CONNECTED TO SAID OUTPUT D.-C. CURRENT MEASURING MEANS; EACH OF SAID FIRST AND SECOND CONTROL CIRCUIT MEANS BEING CONNECTED TO SAID OUTPUT VOLTAGE CONTROL MEANS; SAID FIRST CONTROL CIRCUIT MEANS GENERATING CONTROL SIGNALS SOLELY RESPONSIVE TO VARIATIONS OF SAID OUTPUT D.-C. VOLTAGE FROM SOME PREDETERMINED VALUE; SAID SECOND CONTROL CIRCUIT MEANS GENERATING CONTROL SIGNALS SOLELY RESPONSIVE TO VARIATIONS OF SAID OUTPUT D.-C. CURRENT FROM SOME PREDETERMINED VALUE, SAID FIRST CONTROL CIRCUIT HAVING A HIGH SPEED OF RESPONSE, AND SAID SECOND CONTROL CIRCUIT HAVING A RELATIVELY LOW SPEED OF RESPONSE WITH RESPECT TO SAID FIRST CONTROL CIRCUIT; THE SPEED OF RESPONSE OF SAID FIRST CONTROL CIRCUIT BEING UNAFFECTED BY THE COMPONENTS OF SAID SECOND CONTROL CIRCUIT; SAID FIRST CONTROL CIRCUIT INCLUDING A SERIES CONNECTED RESISTOR AND CAPACITOR; AND A VOLTAGE REFERENCE SOURCE; THE DIFFERENCE IN THE OUTPUT D.-C. VOLTAGE MEASURED BY SAID OUTPUT D.-C. VOLTAGE MEASURING CIRCUIT AND THE VOLTAGE OF SAID REFERENCE SOURCE BEING CONNECTED ACROSS SAID SERIES CONNECTED RESISTOR AND CAPACITOR; A CURRENT PROPORTIONAL TO THE VOLTAGE OF SAID CAPACITOR BEING INJECTED INTO SAID OUTPUT VOLTAGE CONTROL MEANS.