Frequency/voltage converting device

Details Frequency/voltage converting device Frequency/voltage converting device

1990-06-15

1991-10-01

Wong, Peter S.

Electric power conversion systems

Cascaded or combined, diverse conversions in which the...

Current and frequency

363 65, H02M 700

Patent

active

050539361

ABSTRACT:
A frequency/voltage converting device includes a frequency/voltage converting means for converting a DC voltage corresponding to the frequency of an input signal, a reverse-polarity ripple voltage outputting device for outputting a ripple voltage which is equal in magnitude and reverse in polarity to a ripple voltage contained in the DC voltage output from the frequency/voltage converting means; and an adding device for adding the DC voltage output from the frequency/voltage converting device and the voltage output from the reverse-polarity ripple voltage outputting device. The above arrangement serves to cancel the ripple voltage, thereby obtaining a DC voltage containing no ripple voltage for a sawtooth wave generating device.

REFERENCES:
patent: 4024443 (1977-05-01), Schmucker et al.
patent: 4222095 (1980-09-01), Stein
patent: 4556937 (1985-12-01), Ziogas et al.

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