Regulator for an alternator of a vehicle

Details Regulator for an alternator of a vehicle Regulator for an alternator of a vehicle

1997-09-05

1999-07-27

Ramirez, Nestor

Electricity: single generator systems

Generator control

With means for suppressing, eliminating or minimizing...

322 28, 322 99, H02J 714

Patent

active

059296135

ABSTRACT:
A regulator for an alternator installed in a vehicle has a switching circuit in which a field current limiting transistor interruptibly controls a flow of current to a field coil of the alternator. A battery output voltage detection terminal is connected to the battery, and an alternator output voltage terminal is connected to the alternator. A diode connected to the battery output voltage detection terminal has a reverse recovery time of 20 ns-20 .mu.s, and a resistor is connected between the diode and the alternator output voltage terminal. A control circuit controls the switching circuit, in order to regulate the voltage at a connection point of the diode and the resistor so as to keep the voltage constant, and an alarm generating circuit illuminates a charge indicator lamp if the voltage at a junction of said diode and said resistor exceeds a reference voltage.

REFERENCES:
patent: 3852653 (1974-12-01), Kuroda et al.
patent: 4470004 (1984-09-01), Morishita et al.
patent: 4471288 (1984-09-01), Morishita et al.
patent: 4739245 (1988-04-01), Komurasaki et al.
patent: 5512812 (1996-04-01), Ono

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