Rectifying circuit with zero correction

Details Rectifying circuit with zero correction Rectifying circuit with zero correction

1980-03-31

1982-02-02

Shoop, William M.

Electric power conversion systems

Current conversion

Using semiconductor-type converter

H02M 7217

Patent

active

043143261

ABSTRACT:
The invention provides a substantial improvement of a known rectifying circuit for a.c. signals by adding a circuit which measures the d.c. unbalance at the output and subsequently cancels said unbalance by feeding back compensation currents to the rectifying circuit. A dynamic range of 1 to 10,000 or more is then attainable. The rectifying circuit supplies a current whose shape is similar to that of the a.c. input signal, thus enabling r.m.s. values to be measured, for example in voltmeters.

REFERENCES:
patent: 4053796 (1977-10-01), Van de Plassche
patent: 4158882 (1979-06-01), Citta
patent: 4187537 (1980-02-01), Avicola et al.

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