High impedance system for measuring voltage

Details High impedance system for measuring voltage High impedance system for measuring voltage

1991-03-28

1992-10-06

Nguyen, Vinh

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Balancing

324 76R, 324 99R, 324130, 364483, G01R 3300, G01R 1900

Patent

active

051535106

ABSTRACT:
A high voltage measuring system with very high input impedance. The system measures a high voltage source under test by developing a control signal which is proportional to the differential voltage between the high voltage source being tested and an adjustable high voltage reference. This control signal is fed back into a controller which adjusts the reference source so as to match the reference source with the source under test. When the controller detects that matching has occurred, it measures the reference source. By measuring the reference source, as opposed to measuring the source under test directly, the system avoids loading down the source under test.

REFERENCES:
patent: 2880392 (1959-03-01), Paulsen
patent: 3196418 (1965-07-01), Schneberger et al.
patent: 4015191 (1977-03-01), Okumura
patent: 4017810 (1977-04-01), Vahaviolos
patent: 4213088 (1980-07-01), Nossen
patent: 4282576 (1981-08-01), Elms et al.
patent: 4901078 (1990-02-01), Goyal
patent: 5013154 (1991-05-01), Kominsky
Page 359 of Official Gazette of Jul. 6, 1982.
Radio Electronics, pp. 52-59, Nov. 1981.

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