Dual function peak metering circuit

Details Dual function peak metering circuit Dual function peak metering circuit

1988-08-01

1989-09-05

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307351, 307358, 307551, H03K 508

Patent

active

048641677

ABSTRACT:
A dual function peak metering circuit provides both monitoring and measuring functions for a composite signal having both modulated and unmodulated components. A full-wave rectified version of the composite signal is input to an envelope detector that drives a peak weighting circuit and a variable limiter. The output of the peak weighting circuit controls a threshold level for the variable limiter. The peaks of the signal at the output of the variable limiter are detected with an instantaneous peak-hold circuit that is periodically sampled and reset under microprocessor control. The microprocessor then displays the sampled value both graphically and numerically.

REFERENCES:
patent: 3344284 (1967-09-01), Thompson
patent: 3541459 (1970-11-01), Webb
patent: 3804979 (1974-04-01), Knowles
patent: 4166924 (1979-09-01), Berkley et al.
patent: 4175252 (1979-11-01), Shinoda
patent: 4197505 (1980-04-01), Nishijima et al.
patent: 4460871 (1984-07-01), Orban
patent: 4736163 (1988-04-01), Berkhout et al.

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