Circuit arrangement for forming a direct voltage from a sinusoid

Details Circuit arrangement for forming a direct voltage from a sinusoid Circuit arrangement for forming a direct voltage from a sinusoid

1986-11-12

1987-12-08

Beha, Jr., William H.

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

323222, 323282, 323299, H02M 3156

Patent

active

047121696

ABSTRACT:
A circuit arrangement for producing a direct voltage from a sinusoidal input voltage comprising a filter required for suppressing interference voltages, a rectifier, a switched mode power supply part and a pulse generator. The pulse generator produces, from the rectified input signal, switching pulses for the combinatorial circuit part, whose frequency is varied so that it is a minimum at the maximum value of the rectified input voltage and is a maximum at the minimum value and is varied between the extreme values so that the second derivative of the frequency with respect to time is invariably zero or negative. A switching pulse is terminated when a signal proportional to the rectified input voltage is smaller than an integrated signal proportional to the output current of the rectifier.

REFERENCES:
patent: 4190882 (1980-02-01), Chevalier
patent: 4251752 (1981-02-01), Stolz
patent: 4481460 (1984-11-01), Kronig et al.
patent: 4562383 (1985-12-01), Kerscher et al.
patent: 4562527 (1985-12-01), Klampt
Marple, "Low-Distortion Three-Phase Power Regulator", IBM Tech. Discl. Bul., vol. 22, No. 3, pp. 970, 971, Aug. 1979.

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