Phase signal detecting device

Details Phase signal detecting device Phase signal detecting device

1986-12-08

1989-02-07

Heyman, John S.

Communications: electrical

Condition responsive indicating system

Specific condition

328 26, 363127, 323237, 307262, 307236, H03K 500, G08B 2100

Patent

active

048034720

ABSTRACT:
To detect the phase signal, particularly for alternators of motor vehicles, with simple and inexpensive measures, an active rectifier is employed, which supplies at the output a signal with constant polarity (e.g. positive) which can thus be used to verify the correct operation or malfunction of the alternator.

REFERENCES:
patent: 3210727 (1965-10-01), McLaughlin et al.
patent: 4242674 (1980-12-01), Wheeler
patent: 4559486 (1985-12-01), Spencer et al.
patent: 4667282 (1987-05-01), Peterson
"Application of Operational Amplifiers", Jerald Graeme, 1973, McGraw Hill, pp. 124-125.

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