Circuit for detecting an excess-discharge of a battery

Details Circuit for detecting an excess-discharge of a battery Circuit for detecting an excess-discharge of a battery

1990-08-21

1992-07-14

Hickey, R. J.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

340636, H02J 700

Patent

active

051306336

ABSTRACT:
A circuit for controlling a load, such as lamp for a camera, so that the lamp can be turned ON and OFF in response to a low-power signal without requiring a relay, includes a detector for preventing the lamp from being powered when the DC voltage, as supplied by a battery, falls below an acceptable reference level. A completely transistorized circuit replaces the relay and includes a self-holding circuit. Low voltage detection is accomplished using a Zener diode to set the reference voltage.

REFERENCES:
patent: 3831081 (1974-08-01), Weiss
patent: 3863128 (1975-01-01), Wilwerding
patent: 3979657 (1976-09-01), Yorksie
patent: 4146829 (1979-03-01), Rinaldi
patent: 4342953 (1982-08-01), Collins
patent: 4412156 (1983-10-01), Ota

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