Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Reexamination Certificate
2006-08-29
2006-08-29
Berhane, Adolf (Department: 2838)
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
C363S021180
Reexamination Certificate
active
07099162
ABSTRACT:
A PWM signal to DC voltage converting unit includes at least a switch section adapted to provide an on/off function; a driving section electrically connected to the switch section for driving the switch section to provide the on/off function; a first voltage stabilizing section electrically connected to the switch section for generating a voltage; a bridging section electrically connected to the first voltage stabilizing section for keeping the first voltage stabilizing section in one-direction transmission; a second voltage stabilizing section electrically connected to the bridging section for generating a voltage; and an electricity-storing section electrically connected to the second voltage stabilizing section, such that power transmitted by the first and the second voltage stabilizing section may be charged to or discharged from the electricity-storing element. By controlling a duty cycle of an input PWM signal, the output voltage can be adjusted.
REFERENCES:
patent: 6665197 (2003-12-01), Gong et al.
patent: 6927986 (2005-08-01), Nishimaki
patent: 2001/0012210 (2001-08-01), Nagai et al.
Cheng Chien-Hung
Lin Meng-Chih
Asia Vital Components Co. Ltd.
Berhane Adolf
Birch Stewart Kolasch & Birch, LLP.
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