Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...
Reexamination Certificate
2011-08-16
2011-08-16
Patel, Rajnikant B (Department: 2838)
Electricity: power supply or regulation systems
Output level responsive
Using a three or more terminal semiconductive device as the...
C323S224000, C363S098000
Reexamination Certificate
active
07999527
ABSTRACT:
A switching controller for a boost power converter includes a switching-control circuit and a programmable feedback circuit. The programmable feedback circuit is coupled to an output of the boost power converter via a voltage divider. The programmable feedback circuit includes a current source coupled to a switch. On a light-load condition, a power-saving signal turns on the switch. The switch will conduct a programming current supplied by the current source toward the voltage divider. Furthermore, the voltage divider is externally adjustable for programming a determined level of an output voltage of the boost power converter on the light-load condition. Additionally the present invention increases system design flexibility to meet practical power-saving requirements without adding circuitries and increasing cost.
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patent: 7482788 (2009-01-01), Yang
patent: 7498788 (2009-03-01), Yang
Chen Cheng-Sung
Chiang Ting-Ta
Hsu Chien-Tsun
Yang Ta-yung
Jianq Chyun IP Office
Patel Rajnikant B
System General Corp.
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