Electrical control apparatus

Claim 1

A REGULATOR SYSTEM FOR MAINTAINING AT A SUBSTANTIALLY PREDETERMINED VALUE A UNIDIRECTIONAL OUTPUT VOLTAGE OF A BRUSHLESS GENERATOR HAVING AN EXCITATION WINDING AND OUTPUT TERMINALS, SAID OUTPUT VOLTAGE HAVING A RIPPLE COMPONENT, COMPRISING A SEMICONDUCTOR DIODE HAVING A SUBSTANTIALLY CONSTANT VOLTAGE DROP IN ITS REVERSE DIRECTION CONNECTED IN CIRCUIT RELATION WITH SAID VOLTAGE OUTPUT SAID SEMICONDUCTOR DIODE PRODUCING PERIODIC VOLTAGE PULSES AT SAID RIPPLE COMPONENT FREQUENCY, SAID PERIODIC VOLTAGE PULSES VARYING IN WIDTH ACCORDING TO THE DIFFERENCE BETWEEN THE MAGNITUDES OF SAID PREDETERMINED VOLTAGE AND SAID OUTPUT VOLTAGES, FIRST SEMICONDUCTOR SWITCHING MEANS CONNECTED IN CIRCUIT RELATION WITH SAID SEMICONDUCTOR DIODE AND PRODUCING A CONTROL SIGNAL RESPONDIVE TO SAID PERIODIC VOLTAGE PULSES OF SAID SEMICONDUCTOR DIODE, SECOND SEMICONDUCTOR SWITCHING MEANS CONNECTED IN SERIES CIRCUIT RELATION WITH SAID EXCITATION WINDING, MEANS CONNECTED IN CIRCUIT RELATION WITH SAID FIRST AND SECOND SEMICONDUCTOR SWITCHING MEANS FOR PROVIDING A POSITIVE FEEDBACK SIGNAL WHICH REDUCES THE SWITCHING TIME OF SAID SECOND SEMICONDUCTOR SWITCHING MEANS, MEANS CONNECTED IN CIRCUIT RELATION WITH SAID SECOND SEMICONDUCTOR SWITCHING MEANS FOR PROVIDING A REVERSE BIAS SIGNAL WHICH REDUCES THE SWITCHING TIME OF SAID SECOND SEMICONDUCTOR SWITCHING MEANS AND MEANS CONNECTED ACROSS SAID EXCITATION WINDING FOR REDUCING THE DISCHRGE TIME OF SAID EXCITATION WINDING, SAID SECOND SEMICONDUCTOR SWITCHING MEANS HAVING A SWITCHING RATE AND RATIO OF ON TO OFF TIME RESPONSIVE TO SAID CONTROL SIGNAL OF SAID FIRST SEMICONDUCTOR SWITCHING MEANS.