Self-oscillation mixer circuits

Details Self-oscillation mixer circuits Self-oscillation mixer circuits

1978-03-13

1979-07-10

Griffin, Robert L.

Oscillators

Relaxation oscillators

325443, 325451, 331 58, H04B 128

Patent

active

041609530

ABSTRACT:
A self-oscillation mixer circuit includes a cascade amplifier circuitry which is composed of a first transistor of a common emitter connection having a collector connected to an emitter of a second transistor of a common base connection, a filter circuitry for deriving an intermediate frequency signal and a resonance circuit adapted to resonate at a local oscillation frequency being connected to the collector of the second transistor and a feedback circuitry connected between the resonance circuitry and the emitter of the first transistor.

REFERENCES:
patent: 2582683 (1952-01-01), Dammers
patent: 2775705 (1956-12-01), Van Overbeek
patent: 3333200 (1967-07-01), Wolfram
patent: 3694756 (1972-09-01), Carlson
patent: 4056787 (1977-11-01), Saitoh et al.

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