Low and high frequency oscillators having common voltage regulat

Details Low and high frequency oscillators having common voltage regulat Low and high frequency oscillators having common voltage regulat

1977-07-27

1979-01-23

Grimm, Siegfried H.

Oscillators

Plural oscillators

331108D, 331110, 331117R, 331142, 331186, H03B 300, H03B 512, H03B 526

Patent

active

041363159

ABSTRACT:
A low frequency modulating signal and a high frequency carrier signal circuit employing a twin-T oscillator having an integrated circuit operational amplifier for producing the modulating signal and an L-C resonant feedback oscillator having a transistor amplifier for producing the carrier signal, and a monitoring shunt regulator for supplying a reference potential to the twin-T oscillator and biasing and operating potentials to the L-C resonant feedback oscillator and for deactivating the L-C resonant feedback oscillator when an increase in resistance occurs in the shunt regulator.

REFERENCES:
patent: 3793596 (1974-02-01), Grundy
patent: 3794932 (1974-02-01), Grundy
patent: 3813614 (1974-05-01), Darrow
patent: 4009454 (1977-02-01), Darrow

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