Control system for electric power supply

Details Control system for electric power supply Control system for electric power supply

1990-03-14

1992-01-14

Wong, Peter S.

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

363 98, H02M 3335, H02M 5458

Patent

active

050815709

ABSTRACT:
An upper limit value is set up which is larger by a prescribed value than a current value of an ideal sine wave, a lower limit value is set up which is smaller by a prescribed value than the current value of the ideal sine wave. Plural semiconductor switches are actuated according to a clock pulse of specified frequency supplied from a clock pulse generator so that a boosting mode is maintained until an alternate input current increases to reach the upper limit setting value during the boosting mode and a transfer mode is maintained until the alternate input current decreases to reach the lower limit setting value during the transfer mode, thus the semiconductor switches are actuated according to the frequency of the clock pulse at the time of this transfer mode.

REFERENCES:
patent: 3913002 (1975-10-01), Steigerwald et al.
patent: 4591963 (1986-05-01), Retotar

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