Circuit for converting a.c. voltage into a d.c. voltage

Details Circuit for converting a.c. voltage into a d.c. voltage Circuit for converting a.c. voltage into a d.c. voltage

1977-05-25

1978-08-22

Shoop, William M.

Electric power conversion systems

Current conversion

Using semiconductor-type converter

324119, 328 26, 330 9, H02M 712

Patent

active

041093089

ABSTRACT:
An a.c. to d.c. converter is disclosed which includes two resetable integrators each for sampling an alternate half-wave of the a.c. voltage to be converted. During each alternate half-wave, when a given integrator is not integrating the input signal, the integrator output is sampled by an analog memory circuit. After the sampling has taken place, the integrator which has been sampled is reset so that it can again operate properly during the succeeding half-wave. The difference of the output for both analog memory circuits is formed so that the d.c. component of the incoming a.c. signal is removed and the remaining residual ripple in the output results only from changes in amplitude of the a.c. signal itself from one-half wave to the next.

REFERENCES:
patent: 2877308 (1959-03-01), Reiner et al.
patent: 3942095 (1976-03-01), Togneri et al.
patent: 4054835 (1977-10-01), Los et al.
A Linear Converter that Converts an Alternating Voltage into a Direct Voltage, R. Danielyan, M. Garibyan, G. Piriyan, Instruments & Experimental Techniques, (Trans of Prib. & Tekh, Eksp. (USSR), vol. 16, #6, pt. 1, pp. 1736-1737, Nov.-Dec. 1973.
Op Amps Form Self-Bussered Rectifier, Jerold Graeme, Electronics, vol. 43, No. 21, p. 98, Oct. 12, 1970.

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