Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Reexamination Certificate
2006-11-14
2006-11-14
Vu, Bao Q. (Department: 2838)
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
C363S021100, C363S097000
Reexamination Certificate
active
07136292
ABSTRACT:
In a preferred embodiment, there is provided a switched mode power supply operable in start-up mode, normal mode and standby mode. The power supply may comprise a transformer having a primary winding on a primary side and a secondary winding on a secondary side, the primary winding being coupleable to a DC input voltage, and circuitry on the secondary side being arranged to provide a DC output voltage; and a power controller. The power controller may comprise a regulation controller for regulating a DC supply voltage on a supply line during standby mode, and a high voltage device coupled to the DC input voltage and the supply line. The current through the high voltage device to the supply line, during standby mode, may be controlled by the regulation controller. During standby mode, when the supply voltage is greater than or equal to a reference voltage, the current through the high voltage device to the supply line is substantially zero. When the supply voltage is less than the reference voltage, the greater the difference between the supply voltage and the reference voltage, the greater the current through the high voltage device to the supply line. In other preferred embodiments, there is also provided the power controller itself and a method for regulating a supply voltage during standby mode.
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Chan Tuck Meng
Gong Xiaowu
Hu Jing
Jeoh Meng Kiat
Lim Kok Kee
Infineon Technologies Austria AG
Slater & Matsil L.L.P.
Vu Bao Q.
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