Vehicle AC generator control device with overvoltage limiter and

Details Vehicle AC generator control device with overvoltage limiter and Vehicle AC generator control device with overvoltage limiter and

1990-07-12

1992-02-18

Stephan, Steven L.

Electricity: single generator systems

Automatic control of generator or driving means

Plural conditions

322 28, 322 99, 361 21, 320 64, H02J 714

Patent

active

050897667

ABSTRACT:
A vehicle AC generator control device includes an AC generator including a field coil; a rectifier for rectifying an AC output of the AC generator; a battery connected to an output terminal of the rectifier; a voltage regulator including a switching element series-connected to the field coil, the voltage regulator detecting a terminal voltage of the rectifier or battery to operate the switching element to control a field current of the field coil to adjust an output voltage of the generator to a predetermined value; a dummy load unit including a dummy load balanced with an output capacity of the AC generator; and an overvoltage limiter which detects when the output voltage of the AC generator exceeds a set value, to energize the dummy load unit, so that the dummy load unit is connected to an output terminal of the rectifier, to thereby suppress any abnormal rise of the output voltage.

REFERENCES:
patent: 4349854 (1982-09-01), Mori et al.
patent: 4438384 (1984-03-01), Akita et al.
patent: 4629966 (1986-12-01), Quantz
patent: 4658200 (1987-04-01), Kouge
patent: 4739245 (1988-04-01), Komurasaki et al.
patent: 4752865 (1988-06-01), Hatakeyama et al.
patent: 4755737 (1988-07-01), Komurasaki et al.
patent: 4812732 (1989-03-01), Iwatani

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