Sinusoidal oscillator with instant start-up

Details Sinusoidal oscillator with instant start-up Sinusoidal oscillator with instant start-up

1988-01-06

1989-08-29

Grimm, Siegfried H.

Oscillators

Solid state active element oscillator

Transistors

331173, H03B 512

Patent

active

048621137

ABSTRACT:
Initial start up conditions for an oscillator having an inductor and capacitor coupled as a frequency determining resonant circuit are established by current generators. The current levels correlate to the steady state operating levels of the oscillator. Switching elements are actuated so as to gate the oscillator into immediate steady state operation without start up transient distortion by reconfiguring the relationship of the current sources to the oscillator elements.

REFERENCES:
patent: 3229227 (1966-01-01), Popodi
patent: 3363198 (1968-01-01), Davies
patent: 3646477 (1972-02-01), Goodall
patent: 3991388 (1976-11-01), Harshbarger
patent: 4272736 (1981-06-01), Gercekci et al.
patent: 4533881 (1985-08-01), Monett
patent: 4543527 (1985-09-01), Schuchmann et al.
patent: 4617534 (1986-10-01), Lill

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