Electrical pulse counters – pulse dividers – or shift registers: c – Systems – Counter includes circuit for performing an arithmetic function
Patent
1987-01-29
1988-04-26
Heyman, John S.
Electrical pulse counters, pulse dividers, or shift registers: c
Systems
Counter includes circuit for performing an arithmetic function
377 44, 328144, G06F 738, G06F 7552
Patent
active
047410027
ABSTRACT:
The root mean square value of sensed current within a protected circuit is calculated. A frequency multiplying circuit produces a pulse stream having a frequency proportional to the square of the amplitude of an analog signal representation of the circuit current. A root mean square value over a prescribed interval is developed from the squared current value.
REFERENCES:
patent: 3885134 (1975-05-01), Bergin et al.
patent: 4199719 (1980-04-01), Grob
Bernkopf Walter C.
General Electric Company
Heyman John S.
Jacob Fred
Menelly Richard A.
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