Programmable supply voltage regulator for oscillator

Details Programmable supply voltage regulator for oscillator Programmable supply voltage regulator for oscillator

2007-11-21

2009-10-13

Mis, David (Department: 2817)

Oscillators

With particular source of power or bias voltage

Regulated

Reexamination Certificate

active

07602260

ABSTRACT:
A circuit comprises a programmable voltage regulator and an oscillator. The programmable regulator generates a regulated supply voltage using an input voltage and changes the regulated supply voltage from a first voltage to a second voltage in response to a first control signal. The first and the second voltages are generated using charge from the input voltage. The regulated supply voltage drives the oscillator. The oscillator varies a frequency of a periodic output signal within a frequency range in response to changes in a control voltage. The frequency range of the periodic output signal varies when the first control signal causes the regulated supply voltage to change from the first voltage to the second voltage.

REFERENCES:
patent: 4593256 (1986-06-01), Bickley
patent: 7042277 (2006-05-01), Cranford et al.
patent: 7064622 (2006-06-01), Jasa et al.
patent: 7078980 (2006-07-01), Muramatsu
U.S. Appl. No. 11/754,295, filed May 27, 2007, Shumarayev et al.
U.S. Appl. No. 11/558,800, filed Nov. 10, 2006, Lai et al.

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