High frequency precision oscillator with synchronous capability

Details High frequency precision oscillator with synchronous capability High frequency precision oscillator with synchronous capability

1987-02-10

1988-01-19

LaRoche, Eugene R.

Oscillators

Solid state active element oscillator

Transistors

331113R, H03K 3282

Patent

active

047206896

ABSTRACT:
A precision oscillator circuit with synchronous capability. The circuit receives a predetermined discharging voltage and a predetermined charging voltage for setting a precise discharging and charging rate. A comparator in the oscillator contains three transistors connected to each other at their emitters. A latch circuit is provided on two of the transistors for accelerating the speed with which they turn on. An overshoot correction circuit provides additional charging current when the timing capacitor has dropped below the valley voltage threshold. Synchronizing pulses are generated at the capacitor terminal to allow for a plurality of oscillators to operate synchronously when connected in parallel.

REFERENCES:
patent: 4407588 (1983-10-01), Arichi et al.
patent: 4494088 (1985-01-01), Gontowski, Jr. et al.
patent: 4607238 (1986-08-01), Kohsiek

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