Voltage controlled oscillator circuit

Details Voltage controlled oscillator circuit Voltage controlled oscillator circuit

1975-02-10

1976-09-14

Kominski, John

Oscillators

Solid state active element oscillator

Transistors

331111, H03K 326

Patent

active

039809706

ABSTRACT:
This disclosure relates to a solid-state voltage controlled oscillating circuit arrangement employing a differential type of integrated circuit operational amplifier and a transistorized output amplifier. The operational amplifier includes an inverting input coupled to a source of reference potential and a noninverting input coupled to an input signal source. The operational amplifier is provided with hysteresis for causing a dead band zone to occur until the signal on the noninverting input exceeds a predetermined value so that the operational amplifier toggles and produces output signal pulses having a frequency which is proportional to the amplitude of the input signal applied to the noninverting input. The output signal pulses are amplified by a transistorized output amplifier.

REFERENCES:
patent: 3587001 (1971-06-01), Parchim
patent: 3621469 (1971-11-01), Bauer
patent: 3637951 (1972-01-01), Brown, Jr.
patent: 3713046 (1973-01-01), Wong et al.
patent: 3736528 (1973-05-01), Acker et al.
patent: 3742384 (1973-06-01), Breitzmann
patent: 3824496 (1974-07-01), Hekimian

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