Electricity: single generator systems – With signals – indicators – recorders – testing – etc.
Patent
1980-04-04
1982-02-16
Hickey, Robert J.
Electricity: single generator systems
With signals, indicators, recorders, testing, etc.
320 48, 320 64, H02J 714
Patent
active
043161340
ABSTRACT:
A fault indicating circuit for an automobile alternator battery charging system is disclosed. The charging system comprises an alternator providing a rectified battery charging signal in response to alternator field coil excitation which is controlled by a voltage regulator that senses battery voltage. The fault indicating circuit comprises a low voltage detector circuit which provides constant DC excitation for an indicator lamp in response to low alternator output voltage and a high voltage detector circuit which provides intermittent excitation for the lamp in response to an excessively high alternator output voltage, the lamp being maintained in a de-energized state in response to the normal alternator output voltage.
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Balan Isadore
Sievers Kirk A.
Gillman James W.
Hickey Robert J.
Melamed Phillip H.
Motorola Inc.
Pristelski James S.
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