Oscillation circuit having electrostatic protective circuit

Details Oscillation circuit having electrostatic protective circuit Oscillation circuit having electrostatic protective circuit

1999-03-04

2000-11-14

Grimm, Siegfried H.

Oscillators

With oscillator circuit protective means

331158, 331186, 368159, H03B 532, H03L 100, H03L 500, G04F 506

Patent

active

061475645

ABSTRACT:
An oscillation circuit including an electrostatic protective circuit connected between a signal path and this constant voltage V.sub.reg. It comprises a first electrostatic protective circuit portion that causes any electrostatic voltage of a first polarity that invades the signal path to be selectively diverted through a diode to the constant voltage V.sub.reg side of the circuit, and any electrostatic voltage of a second polarity that invades the signal path to be selectively diverted through another diode to the ground side. This ensures that the oscillation circuit is not affected by fluctuations in the power voltage from the main power source, enabling it to oscillate at a stable frequency.

REFERENCES:
patent: 3868597 (1975-02-01), Gollinger
patent: 3939644 (1976-02-01), Wolf
patent: 4048584 (1977-09-01), Ulmer
patent: 4066918 (1978-01-01), Heuner et al.
patent: 4605980 (1986-08-01), Hartranft et al.
patent: 5546055 (1996-08-01), Klughart
patent: 5903184 (1999-05-01), Hiraga

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