Storage battery charging system fault indicating circuit

Details Storage battery charging system fault indicating circuit Storage battery charging system fault indicating circuit

1975-12-17

1977-08-09

Hickey, Robert J.

Electricity: single generator systems

With signals, indicators, recorders, testing, etc.

320 48, 320 64, H02J 714, H02P 900

Patent

active

040413691

ABSTRACT:
A circuit for indicating faults in a storage battery charging system of the type including an alternator having a field winding and a rectifier circuit having respective battery charging and alternator field winding energizing output circuit terminals. A differential amplifier circuit, to which is applied normally equal reference sensing potentials which become unbalanced with alternator faults, produces a first fault indicating signal in the event of an alternator malfunction and a transistor having the control electrode connected to the rectifier circuit field winding energizing output circuit terminal produces a second fault indicating signal in the event of a failure of one of the diodes in the rectifier field winding energizing output circuit. These fault indicating signals trigger a transistor conductive to complete an energizing circuit for a fault indicating device.

REFERENCES:
patent: 3656135 (1972-04-01), Ruff
patent: 3764879 (1973-10-01), Hill
patent: 3781633 (1973-12-01), Iwaki

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