Method of and apparatus for temperature-stabilizing semi-conductor relays and the like

Claim 1

APPARATUS FOR STABILIZING AND CONTROLLING THE OUTPUT SIGNAL OF A MAIN SEMI-CONDUCTOR RELAY, HAVING, IN COMBINATION WITH THE MAIN SEMI-CONDUCTOR RELAY, AN AUXILLIARY SEMI-CONDUCTOR RELAY PHYSICALLY SEPARATE FROM THE MAIN SEMI-CONDUCTOR RELAY AND THE INHERENT ELECTRICAL CHARACTERISTICS OF WHICH ARE ALL SUBSTANTIALLY IDENTICAL TO THOSE OF THE MAIN SEMI-CONDUCTOR RELAY, MEANS FOR CONNECTING THE SAID AUXILIARY SEMI-CONDUCTOR RELAY INTO AN ELECTRICAL CIRCUIT TO PROVIDE PREDETERMINED MINIMUM AND MAXIMUM LIMITS OF A REFERENCE SIGNAL PRODUCED THEREBY IN REPONSE TO THE ACTION OF AMBIENT TEMPERATURE VARIATIONS UPON THE SAID AUXILIARY SEMI-CONDUCTOR RELAY, MEANS FOR FEEDING THE REFERENCE SIGNAL TO THE MAIN SEMI-CONDUCTOR RELAY IN ORDER THEREUPON TO STABILIZE OVER A PREDETERMINED TEMPERATURE RANGE THE SAID OUTPUT SIGNAL FROM THE MAIN SEMI-CONDUCTOR RELAY, MEANS FOR FEEDING A CONTROL SIGNAL TO THE INPUT OF THE AUXILIARY SEMI-CONDUCTOR RELAY, AND MEANS FOR FEEDING THE RESULTING SIGNAL FROM THE AUXILIARY SEMI-CONDUCTOR RELAY TO THE MAIN SEMI-CONDUCTOR RELAY IN ORDER THEREUPON TO MODIFY THE SAID OUTPUT SIGNAL OF THE MAIN SEMICONDUCTOR RELAY.