Semiconductor voltage regulator

Claim 1

AN ELECTRICAL SYSTEM COMPRISING, AN ALTERNATING CURRENT GENERATOR HAVING A THREE PHASE Y-CONNECTED OUTPUT WINDING AND A FIELD WINDING, A BRIDGE RECTIFIER NETWORK COMPRISED OF FOUR CONTROLLED RECTIFIERS AND TWO DIODES, SAID BRIDGE RECTIFIER NETWORK HAVING FIRST, SECOND AND THIRD A.C. INPUT TERMINALS AND FIRST AND SECOND DIRECT CURRENT OUTPUT TERMINALS, SAID FIRST A.C. INPUT TERMINAL BEING CONNECTED WITH THE CATHODE OF ONE OF SAID CONTROLLED RECTIFIERS AND THE ANODE OF ANOTHER CONTROLLED RECTIFIER, SAID SECOND A.C. INPUT TERMINAL BEING CONNECTED WITH THE CATHODE OF ONE OF SAID CONTROLLED RECTIFIERS AND THE ANODE OF ANOTHER CONTROLLED RECTIFIER, SAID THIRD A.C. INPUT TERMINAL BEING CONNECTED WITH THE ANODE OF ONE OF SAID DIODES AND THE CATHODE OF THE OTHER OF SAID DIODES, THE CATHODES OF TWO CONTROLLED RECTIFIERS AND THE CATHODE OF ONE DIODE BEING CONNECTED TO SAID FIRST DIRECT CURRENT OUTPUT TERMINAL, THE ANODES OF THE OTHER CONTROLLED RECTIFIERS AND THE ANODE OF THE OTHER DIODE BEING CONNECTED TO SAID SECOND DIRECT CURRENT OUTPUT TERMINAL, MEANS CONNECTING SAID FIELD WINDING ACROSS SAID FIRST AND SECOND DIRECT CURRENT OUTPUT TERMINALS OF SAID BRIDGE NETWORK, MEANS CONNECTING THE PHASE WINDINGS OF SAID OUTPUT WINDING RESPECTIVELY TO THE A.C. INPUT TERMINALS OF SAID BRIDGE RECTIFIER NETWORK, AND MEANS RESPONSIVE TO THE OUTPUT VOLTAGE OF SAID OUTPUT WINDING FOR CONTROLLING THE CONDUCTION OF SAID CONTROLLED RECTIFIERS WHEREBY THE CURRENT SUPPLIED TO SAID FIELD WINDING IS A FUNCTION OF THE OUTPUT VOLTAGE OF SAID OUTPUT WINDING.