Power supply compensated MOS Schmitt trigger oscillator

Details Power supply compensated MOS Schmitt trigger oscillator Power supply compensated MOS Schmitt trigger oscillator

1992-08-19

1994-06-07

Grimm, Siegfried H.

Oscillators

Solid state active element oscillator

Transistors

331143, 331179, H03K 3354

Patent

active

053193237

ABSTRACT:
An MOS oscillator circuit which is relatively immune to power variations in the supply is presented. A capacitor is charged and discharged in responsive to the feedback signal from a Schmitt trigger circuit. The current to charge and discharge the capacitor is generated by a current mirror which is regulated by a constant voltage generator for immunity from power supply variations.

REFERENCES:
patent: 4689581 (1987-08-01), Talbot
patent: 4742315 (1988-05-01), Schreilechner
patent: 4758801 (1988-07-01), Drexelmayr

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