Signal-powered receiver

Details Signal-powered receiver Signal-powered receiver

1980-07-14

1982-02-02

Miller, J. D.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

For relays or solenoids

361172, 246 34C, 246 34CT, B61L 2316

Patent

active

043143067

ABSTRACT:
A self-powered receiver including a series resonant circuit tuned to the carrier frequency of a modulated carrier signal. A demodulator for detecting the envelope which switches a switching transistor ON during the mark portions of the modulator carrier signals and switches the switching transistor OFF during the space portions. A parallel resonant circuit is driven by the switching transistor to produce a.c. modulations to be coupled to a full-wave rectifier. The rectified voltage of the rectifier is used to energize an electromagnetic relay.

REFERENCES:
patent: 3944173 (1976-03-01), Moe et al.
patent: 3951364 (1976-04-01), Sibley
patent: 4117529 (1978-09-01), Stark et al.
patent: 4118750 (1978-10-01), Auer, Jr. et al.

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