Power measurement circuit

Details Power measurement circuit Power measurement circuit

2008-12-18

2011-11-01

Phan, Huy Q (Department: 2858)

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With waveguide or long line

C327S532000

Reexamination Certificate

active

08049487

ABSTRACT:
A power measurement circuit and method are described. The circuit comprises: a transconductance rectifier arrangement including an input and configured to receive a periodically varying input voltage signal having an approximate 50% duty cycle; and an averaging filter for producing a time averaged DC output signal proportional to the mean square of the voltage at the input of the transconductance rectifier arrangement and representative of the average power of the input voltage signal within a range of voltages at the input.

REFERENCES:
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patent: 6922086 (2005-07-01), Gist
patent: 7002394 (2006-02-01), Gilbert
patent: 7804364 (2010-09-01), Dupuis et al.
patent: 2008/0136491 (2008-06-01), Zou
Non-Final Office Action dated Jul. 20, 2010 issued in corresponding U.S. Appl. No. 12/277,811.

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