Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Reexamination Certificate
2008-06-17
2009-06-16
Vu, Bao Q (Department: 2838)
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
C363S021060, C363S021110
Reexamination Certificate
active
07548436
ABSTRACT:
A power converter includes: a transformer controlled by a main switch to receive an input power according to a driving signal; a switching circuit outputting a sync signal; and a driving circuit including a dead time controller that includes first and second switches operating according to the sync signal, and an inverse phase generator that includes third and fourth switches and that generates a switching signal. A circuit switch of the switching circuit operates according to the switching signal. Transition of the driving signal from high to low causes the switching signal to transition from low to high with a dead time between a falling edge of the sync signal and a rising edge of the switching signal. Transition of the driving signal from low to high causes the switching signal to transition from high to low with a dead time between a falling edge of the switching signal and a rising edge of the sync signal.
REFERENCES:
patent: 6038148 (2000-03-01), Farrington et al.
patent: 6504739 (2003-01-01), Phadke
patent: 2003/0128556 (2003-07-01), Zhang
Lite-On Technology
Rosenberg , Klein & Lee
Vu Bao Q
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