Resonant oscillator circuit with reduced startup transients

Details Resonant oscillator circuit with reduced startup transients Resonant oscillator circuit with reduced startup transients

2009-12-02

2011-12-27

Chang, Joseph (Department: 2817)

Oscillators

Solid state active element oscillator

Transistors

C331S10800D, C331S1170FE, C331S167000, C331S172000, C331S185000

Reexamination Certificate

active

08085103

ABSTRACT:
Some embodiments of the present invention provide a system that implements a resonant oscillator circuit. This resonant oscillator circuit includes: a first inductor, a second inductor, a first capacitance, and a second capacitance, wherein the first and second inductors are configured to operate with the first and second capacitances to produce resonant oscillations which appear at a first phase output and a second phase output. The system also includes a startup circuit which is configured to start the resonant oscillator circuit in a state where: the first phase output is at a peak voltage; the second phase output is at a base voltage; and currents through the first and second inductors are substantially zero. By starting the resonant oscillator circuit in this state, the oscillations commence without a significant startup transient.

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