Digital watts transducer

Details Digital watts transducer Digital watts transducer

1977-04-18

1978-03-14

Krawczewicz, Stanley T.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Plural inputs

G01R 2100

Patent

active

040793133

ABSTRACT:
A circuit for sensing instantaneous current and voltage generates a digital output which indicates the power consumed over a time interval. The analog product of sensed current and voltage is converted to a pulse train in which each pulse represents a plus or minus increment of power. These pulses are either added to or subtracted from a total accumulated power number which is stored in a digital counter. The contents of the digital counter is coupled to a display to provide a readout of total consumed power.

REFERENCES:
patent: 3470471 (1969-09-01), Moore
patent: 3794917 (1974-02-01), Martin et al.
patent: 3976941 (1976-03-01), Milkovic

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