Control apparatus for an AC generator

Details Control apparatus for an AC generator Control apparatus for an AC generator

1991-06-04

1993-11-09

Stephan, Steven L.

Electricity: single generator systems

Automatic control of generator or driving means

Voltage of generator or circuit supplied

H02H 706, H02P 900, H02P 1100

Patent

active

052606414

ABSTRACT:
A control apparatus for an AC generator which effectively prevents a dead battery even if the engine is stopped for an extended period of time with the key switch left on comprises a voltage regulator connected between the generator and the battery for controlling the current supply from the battery to the generator field coil. The voltage regulator comprises a first circuit including a semiconductor switch 306a connected in series with the field coil between an output and a ground terminal of the rectifier, a second circuit 303a, 304a connected between the first circuit and the rectifier for controlling the first circuit so that the output voltage of the generator is regulated to be at a first predetermined level, a third circuit 313a, 314a connected between the first circuit and the battery for making the first circuit conductive when the output voltage of the battery falls below a second predetermined level, and a fourth circuit 318a, 319a, 320a connected between the generator and the first circuit for making the first circuit conductive when the generator starts power generation.

REFERENCES:
patent: 4266181 (1981-05-01), Muto et al.
patent: 4295087 (1981-10-01), Morishita et al.
patent: 4739244 (1988-04-01), Komurasaki et al.
patent: 4985670 (1991-01-01), Kaneyuki et al.

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