Resonant transformer push-pull transistor oscillator

Details Resonant transformer push-pull transistor oscillator Resonant transformer push-pull transistor oscillator

1978-03-20

1979-05-22

Grimm, Siegfried H.

Oscillators

Solid state active element oscillator

Transistors

331108D, 331117R, H03B 512

Patent

active

041562100

ABSTRACT:
The specification discloses a regulated temperature compensated current source in combination with a self resonant oscillator. The current source receives an unregulated DC voltage and compensates the DC voltage with a negative current coefficient. A current source circuit receives the compensated DC voltage in order to generate a regulated current. The current source circuitry has a positive temperature coefficient to thereby provide temperature compensation to the generated current. The oscillator includes a resonant transformer connected at the ends thereof to first and second transistors. A pair of voltage detectors are also connected across the ends of the transformer for receiving drive current and for rendering alternate ones of the transistors conductive in dependence upon which end of the transformer is at the highest potential. The oscillator thus operates in a self resonant mode to generate a very stable sinusoidal wave which is particularly adapted for application to a multiplier for generation of a stable DC output signal.

REFERENCES:
patent: 3255402 (1966-06-01), Vollnhals
patent: 3299371 (1967-01-01), Ryan
patent: 3480872 (1969-11-01), Breuer
patent: 3629692 (1971-12-01), Goyer
patent: 3763444 (1973-10-01), Tavis
patent: 3893017 (1975-07-01), Williams
patent: 3895286 (1975-07-01), Steckler
patent: 3925718 (1975-12-01), Wittlinger
patent: 4030023 (1977-06-01), Keith
patent: 4055811 (1977-10-01), Wheatley, Jr.
Anzani, "Current Generator Made With Four Parts," Electronic Design, vol. 16, No. 3, Feb. 1, 1968, p. 134.

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