Invention Grant
- Patent Title: DC power converting circuit and method thereof
- Patent Title (中): 直流电力转换电路及其方法
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Application No.: US12839611Application Date: 2010-07-20
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Publication No.: US08502512B2Publication Date: 2013-08-06
- Inventor: Lijing Chen , Zehong Qian
- Applicant: Lijing Chen , Zehong Qian
- Applicant Address: TW Hsinchu Hsien
- Assignee: MStar Semiconductor, Inc.
- Current Assignee: MStar Semiconductor, Inc.
- Current Assignee Address: TW Hsinchu Hsien
- Agency: WPAT, PC
- Agent Justin King
- Priority: CN200910109197 20090731
- Main IPC: G05F1/00
- IPC: G05F1/00
Abstract:
A direct current (DC) converting circuit includes a DC input end, for receiving a DC input voltage; a DC output end, for providing a predetermined DC voltage; a switch, coupled between the DC input end and the DC output end, for providing a direct path; a DC-DC step-down unit, coupled between the DC input end and the DC output end, for providing a step-down voltage path; and a control unit, coupled to the switch and the DC-DC step-down unit, for detecting the DC input voltage and selecting either the direct path or the step-down voltage path to provide the predetermined DC voltage at the DC output end. The DC power converting circuit can be applied in power supply circuits of multi-media players or TV setup boxes to convert DC input voltage including 5V, 9V or 12V DC voltages to a predetermined DC voltage.
Public/Granted literature
- US20110025290A1 DC Power Converting Circuit and Method Thereof Public/Granted day:2011-02-03
Information query
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