Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Reexamination Certificate
2008-03-18
2008-03-18
Vu, Bao Q. (Department: 2838)
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
C363S041000, C363S021170
Reexamination Certificate
active
11449142
ABSTRACT:
System and method for protecting a power converter. The system includes a compensation system configured to receive an input signal and generate a control signal, a cycle threshold generator configured to receive the control signal and generate a cycle threshold, and a comparator configured to receive the cycle threshold and a feedback signal and generate a comparison signal. Additionally, the system includes a pulse-width-modulation generator configured to receive the comparison signal and generate a modulation signal in response to the comparison signal, and a switch configured to receive the modulation signal and control an input current for a power converter. The input current is associated with an output power for the power converter. The cycle threshold corresponds to a threshold power level for the output power. The threshold power level is constant, decreases, or increases with respect to the input signal.
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patent: 6714425 (2004-03-01), Yamada et al.
patent: 6853174 (2005-02-01), Inn
patent: 6914789 (2005-07-01), Kinoshita et al.
patent: 6940733 (2005-09-01), Schie et al.
patent: 6947298 (2005-09-01), Uchida
patent: 7027313 (2006-04-01), Amei
Chen Zhiliang
Fang Lieyi
Ye Jun
Zhao Shifeng
Zhu Zhen
On-Bright Electronics (Shanghai) Co., Ltd.
Vu Bao Q.
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