Voltage/frequency converter with frequency drift compensation lo

Details Voltage/frequency converter with frequency drift compensation lo Voltage/frequency converter with frequency drift compensation lo

1986-05-29

1987-09-22

Wong, Peter S.

Electric power conversion systems

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

Current and frequency

331 1A, 331 18, H03L 700

Patent

active

046959319

ABSTRACT:
A voltage/frequency converter is formed of a V/F converter circuit which converts an input potential into a frequency corresponding to the instantaneous value of the input potential, and a difference detection circuit which generates an output corresponding to the difference between the output frequency of the V/F converter circuit and a predetermined reference frequency. The V/F converter circuit is controlled according to the level of the output from the difference detection circuit, thereby reducing the deviation of the output frequency of said V/F converter circuit from the reference frequency.

REFERENCES:
patent: 3651422 (1972-03-01), Underhill
patent: 3753141 (1973-08-01), Van Elk et al.
patent: 4147910 (1979-04-01), Kiuchi et al.
patent: 4387351 (1983-06-01), Furiga et al.
patent: 4470025 (1984-09-01), Baker
patent: 4520327 (1985-05-01), Myers
"Electronic Technology on the Workshop", Sep. 1981, M. Kamiya, I. Kouda, pp. 14, 15.

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