08085013 is referenced by 102 patents and cites 4 patents.

A DC converter and a mode-switching method used in an electronic apparatus are included. The electronic apparatus includes a subsystem circuit. The DC power converter comprises a first voltage converting circuit electrically connected to the subsystem circuit, receiving a system voltage and a first reference voltage, and converting the system voltage to a first output voltage based on the first reference voltage; and a second voltage converting circuit electrically connected to the subsystem circuit and receiving the system voltage and a second reference voltage, and converting the system voltage to a second output voltage to the same output end of the first voltage converting circuit based on the second reference voltage; wherein the second voltage converting circuit outputs the second output voltage to the subsystem circuit when the first output voltage at the output end is smaller than a threshold.

Title
DC power converter and mode-switching method
Application Number
12/249351
Publication Number
8085013 (B2)
Application Date
October 10, 2008
Publication Date
December 27, 2011
Inventor
Song Yi Lin
Taipei
TW
Hung I Wang
Hsinchu County
TW
Kuan Yeu Chen
Hsinchu Hsien
TW
Chun Kai Derrick Wei
Hsinchu County
TW
Agent
Justin King
WPAT PC
Assignee
MStar Semiconductor
TW
IPC
G05F 1/00
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