Current controlled electrical circuits

Details Current controlled electrical circuits Current controlled electrical circuits

1975-08-22

1976-09-28

Kominski, John

Oscillators

Solid state active element oscillator

Transistors

307262, 307295, 331135, 331137, 331177R, 333 80T, 333 70CR, H03B 524

Patent

active

039835120

ABSTRACT:
A resonant circuit is provided with a number of phase shift circuits connected in series. A control circuit is connected in series with the phase shift circuits for controlling the direct current flowing through the circuits. One of the phase shift circuits is constructed of a pair of transistors interconnected by a capacitor. The emitter resistance of the transistors is determined by the direct currents flowing therethrough from the control circuit, whereupon the frequency of oscillation or resonance of the resonant circuit is dependant upon the emitter resistance.

REFERENCES:
patent: 3070762 (1962-12-01), Evans
patent: 3289102 (1966-11-01), Hayashi
patent: 3829795 (1974-08-01), Minney

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