Alarm circuit for car alternator

Details Alarm circuit for car alternator Alarm circuit for car alternator

1979-05-14

1981-03-03

Waring, Alvin H.

Communications: electrical

Selective

Having indication or alarm

340510, 340635, 340662, 340663, 320 48, G08B 2100

Patent

active

042543967

ABSTRACT:
An alarm circuit indicating a defect in a car alternator, said circuit comprising a voltage divider formed by two resistors connected between the positive terminal B+ and a negative terminal D- of the alternator, the center point of the voltage divider being connected to the control electrode of a commutation circuit of which the output path is serially connected with a lamp between the terminals of the battery, and rectifier means being provided for preventing the battery to discharge through the voltage divider.

REFERENCES:
patent: 3138751 (1964-06-01), Brewster
patent: 3210727 (1965-10-01), McLaughlin et al.
patent: 3305774 (1967-02-01), Heath
patent: 3321754 (1967-05-01), Grimm et al.
patent: 3524121 (1970-08-01), Nolan et al.
patent: 3624482 (1971-11-01), Ruff
patent: 3944905 (1976-03-01), Allport et al.

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