Oscillation circuit with power limiting controller

Details Oscillation circuit with power limiting controller Oscillation circuit with power limiting controller

1995-04-19

1996-09-17

Mis, David

Oscillators

Electromechanical resonator

Crystal

331116FE, 331160, 331173, H03B 504, H03B 506, H03B 536

Patent

active

055572430

ABSTRACT:
An oscillation circuit employs a piezo-electric crystal connected in parallel with an amplifier having a gain equal to or less than that needed to maintain a steady-state operation of the amplifier when operated at the maximum output. One or more controllable amplifiers are connected in parallel with the amplifier and controlled according to the level of the oscillation signal, to rapidly amplify an initial oscillation to steady-state operation level and to keep it there without exceeding the output level of the crystal while minimizing the energy supplied to the entire oscillation circuit.

REFERENCES:
patent: 4321562 (1982-03-01), Igarashi
patent: 4896122 (1990-01-01), Tahernia et al.
patent: 5041802 (1991-08-01), Wei et al.
patent: 5150081 (1992-09-01), Goldberg
patent: 5208558 (1993-05-01), Shigehara et al.

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