Resonant oscillator with oscillation-startup circuitry

Details Resonant oscillator with oscillation-startup circuitry Resonant oscillator with oscillation-startup circuitry

2011-07-19

2011-07-19

Chang, Joseph (Department: 2817)

Oscillators

Solid state active element oscillator

Transistors

C331S185000, C331S167000

Reexamination Certificate

active

07982548

ABSTRACT:
Some embodiments of the present invention provide a system that implements a resonant oscillator circuit. This system includes a first inductor with a constant potential terminal coupled to an input voltage, and a time-varying potential terminal coupled to a first phase output. The system also includes a second inductor with a constant potential terminal coupled to the input voltage, and a time-varying potential terminal coupled to a second phase output. The system additionally includes a first n-type transistor with a source terminal coupled to a base voltage, a drain terminal coupled to the first phase output, and a gate terminal coupled to the second phase output. The system also includes a second n-type transistor with a source terminal coupled to the base voltage, a drain terminal coupled to the second phase output, and a gate terminal coupled to the first phase output. Finally, the system includes a startup circuit configured to commence oscillations in the resonant oscillator circuit by energizing the first inductor before energizing the second inductor.

REFERENCES:
patent: 5559478 (1996-09-01), Athas
patent: 2006/0055481 (2006-03-01), Takahashi
patent: 2011/0032043 (2011-02-01), Athas

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