Voltage regulating system

Details Voltage regulating system Voltage regulating system

1975-02-05

1976-09-28

Miller, J D

Electricity: single generator systems

Automatic control of generator or driving means

Voltage of generator or circuit supplied

317 31, 317 33VR, 320 64, H02H 706, H02J 716

Patent

active

039834719

ABSTRACT:
A voltage regulating system is used to regulate the output voltage of an alternating current generator which serves to supply electrical loads on a motor vehicle including a battery. The field winding of the generator is supplied with current through the voltage regulating system operating in a switching mode.
The voltage regulating system includes a voltage sensing circuit connected with the battery, a control transistor connected with the voltage sensing circuit for effecting ON-OFF of a field current, and a protection circuit having a PNP transistor and a zener diode connected between an output terminal of the generator and the voltage sensing circuit which becomes operable to effect ON-OFF of the field current when the voltage sensing circuit is disconnected from the battery, whereby the output voltage of the generator is regulated at a lower level than that regulated by the voltage sensing circuit during such a disconnection.

REFERENCES:
patent: 3332006 (1967-07-01), Worrell et al.
patent: 3469168 (1969-09-01), Harland, Jr. et al.
patent: 3539864 (1970-11-01), Harland, Jr. et al.
patent: 3855517 (1974-12-01), Allport

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