Electricity: single generator systems – Automatic control of generator or driving means – Thermal conditions
Patent
1983-03-07
1984-03-06
Hickey, R. J.
Electricity: single generator systems
Automatic control of generator or driving means
Thermal conditions
320 35, 320 64, 322 28, H02J 714, H02P 930
Patent
active
044356765
ABSTRACT:
The disclosed device for controlling an output from an AC generator to a predetermined magnitude comprises two transistors put in a Darlington configuration and connected across a rectified electric source due to the AC generator through a field coil of the AC generator, a control transistor connected to a base circuit for the two transistors, and a first Zener diode connected to a base of the control transistor. Two serially connected resistors form a voltage sensor connected across the rectified electric source through a common emitter transistor. The Zener diode is connected to the junction of the serially connected resistors, and the common emitter transistor include a base connected via a second Zener diode to the junction of a resistor and a thermally sensitive switch element serially connected to form a temperature sensor connected across the rectified electric source.
REFERENCES:
patent: 3522482 (1970-08-01), Thompson
patent: 3663946 (1972-05-01), Iwaki
patent: 4237412 (1980-12-01), Rundlof
patent: 4385270 (1983-05-01), Balan et al.
Hickey R. J.
Mitsubishi Denki & Kabushiki Kaisha
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