Device for detecting voltage fluctuation

Details Device for detecting voltage fluctuation Device for detecting voltage fluctuation

1985-05-15

1989-01-03

Karlsen, Ernest F.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Transient or portion of cyclic

324 76R, 324119, 328147, 328148, G01R 1900, H03K 5153

Patent

active

047959711

ABSTRACT:
A device for detecting voltage fluctuation including a first amplifier for amplifying an input voltage signal, a second amplifier for amplifying the same input voltage signal with a fixed delay time relatively to the first amplifier and a voltage comparator for comparing the respective amplified output voltages to produce a high-level output at the time of increase or decrease of the input voltage signal.

REFERENCES:
patent: 2564829 (1951-08-01), Bedford et al.
patent: 3988726 (1976-10-01), Reiss et al.
patent: 4449058 (1984-05-01), Feldmann
patent: 4507578 (1985-03-01), Matsuda
patent: 4507795 (1985-03-01), Wagner

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