Fast recovery peak detector

Details Fast recovery peak detector Fast recovery peak detector

1979-07-31

1981-06-09

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

H02H 308

Patent

active

042727979

ABSTRACT:
In a circuit breaker static trip unit, a peak detector generates a DC current signal of a magnitude proportional to the rectified peak signal voltage developed across a current transformer burden resistor. The peak detector utilizes a differential amplifier operating in conjunction with a peak signal voltage detecting circuit connected therewith as a negative DC feedback network. A recovery circuit detects the relative amplitudes of consecutive signal voltage peaks pursuant to rapidly adjusting the peak signal voltage detecting circuit to signal voltage peaks of decreasing amplitudes.

REFERENCES:
patent: 4104691 (1978-08-01), Shimp et al.
patent: 4115829 (1978-09-01), Howell
patent: 4161761 (1979-07-01), Moran

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