Frequency selective hysteresis comparator

Details Frequency selective hysteresis comparator Frequency selective hysteresis comparator

1978-09-06

1980-11-11

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

328111, 328149, 307290, 307268, H03K 906, H03K 908, H03K 508

Patent

active

042335639

ABSTRACT:
A wave shaping electrical circuit for a hysteresis comparator having enhanced low frequency noise immunity. A passive element differentiating network is between the signal source and the input circuit of the comparator. The circuit includes components to provide a time constant in the passive element differentiating network such that the corner frequency is greater than the frequency of a low frequency noise signal which may be included as a component of the input signal.

REFERENCES:
patent: 3109944 (1963-11-01), Seestrom
patent: 3119070 (1964-01-01), Seliger
patent: 3264496 (1966-08-01), Scholl
patent: 3380003 (1968-04-01), Bemmann
patent: 3566284 (1971-02-01), Thelen
patent: 3600607 (1971-08-01), Vatin
patent: 3781692 (1973-12-01), Escoffier

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