Overvoltage alarm circuit for vehicle generator with false actua

Details Overvoltage alarm circuit for vehicle generator with false actua Overvoltage alarm circuit for vehicle generator with false actua

1986-11-12

1988-04-19

Hickey, R. J.

Electricity: single generator systems

With signals, indicators, recorders, testing, etc.

320 64, H02J 714

Patent

active

047392452

ABSTRACT:
A control device for a vehicle mounted generator 1 includes a rectifier 2, a voltage regulator 3 and an overvoltage alarm circuit 4 which includes an overvoltage detection level modifying circuit which renders the alarm circuit insensitive to a temporary overvoltage due to the disconnection of a relatively heavy electrical load 6 of the vehicle from the battery 5. The detection level modifying circuit functions to change the junction potential of a voltage divider supplying a comparator input.

REFERENCES:
patent: 4525662 (1985-06-01), Kato et al.
patent: 4590414 (1986-05-01), Mayumi et al.
patent: 4618811 (1986-10-01), Mashino et al.

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