A.C. to D.C. voltage converter

Details A.C. to D.C. voltage converter A.C. to D.C. voltage converter

1977-10-04

1979-11-27

Shoop, William M.

Electric power conversion systems

Current conversion

Using semiconductor-type converter

324119, 324123R, H02M 702

Patent

active

041763939

ABSTRACT:
An a.c. to d.c. voltage converter of this invention comprises an a.c. voltage amplifier whose inverting input is connected to a lead of an input resistor, and whose non-inverting input is grounded for alternating current. The converter further includes a non-linear detection unit having a separating capacitor, a diode with one electrode connected via the separating capacitor to the output of the a.c. voltage amplifier and the other electrode connected to the inverting input of the a.c. voltage amplifier, and a means for producing direct linear current through the input resistor connected in parallel with the diode and electrically coupled to the input of the converter. The a.c. to d.c. voltage converter of this invention provides for automatic filtering of detected signals and insures excellent time stability of the conversion coefficient.

REFERENCES:
patent: 3196291 (1965-07-01), Woodward, Jr.
patent: 3287651 (1966-11-01), Ingle
patent: 3311826 (1967-03-01), Galman
patent: 3553566 (1971-01-01), Nagy, Jr.
Electronics, "Op Amps From Self-Buffered Rectifier", Jerald Graeme, vol. 43, No. 21, p. 98, Oct. 12, 1970.

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