Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Reexamination Certificate
2009-03-27
2011-10-04
Berhane, Adolf (Department: 2838)
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
C363S021140
Reexamination Certificate
active
08031489
ABSTRACT:
The configuration of a synchronous rectification circuit and a controlling method thereof are provided. The proposed circuit includes a converter including a first switch and a first synchronous rectifier, and a burst mode controller including a logic process module performing one of functions of delaying one of a non-integer and at least one operating periods to generate a synchronous rectification driving signal of the first synchronous rectifier counting from a beginning of a first pulse of a driving signal of the first switch during a working time of a burst period, and turning off the synchronous rectification driving signal of the first synchronous rectifier by one of the non-integer operating period and the at least one operating period ahead of an ending of a last operating period of the driving signal of the first switch during the working time of the burst period.
REFERENCES:
patent: 2008/0137379 (2008-06-01), Mao
patent: 2009/0016083 (2009-01-01), Soldano et al.
patent: 2009/0086512 (2009-04-01), Fahlenkamp et al.
patent: 2009/0213623 (2009-08-01), Yang
Wang Bin
Wu Hongyang
Wu Qikun
Xin Xiaoni
Ying Jianping
Berhane Adolf
Delta Electronics , Inc.
Pham Emily
Volpe and Koenig P.C.
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