Invention Grant
- Patent Title: DC-DC converter and semiconductor integrated circuit
- Patent Title (中): DC-DC转换器和半导体集成电路
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Application No.: US12879945Application Date: 2010-09-10
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Publication No.: US08373397B2Publication Date: 2013-02-12
- Inventor: Ryo Tanifuji , Nobuyasu Goto
- Applicant: Ryo Tanifuji , Nobuyasu Goto
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Knobbe, Martens, Olson & Bear LLP
- Priority: JP2009-262164 20091117
- Main IPC: G05F1/40
- IPC: G05F1/40
Abstract:
A DC-DC converter according to the present invention includes a monitoring circuit which monitors an output signal of a mode comparator and which outputs a mode change detection signal when the output of the mode comparator has output a light load mode signal, and a clamp circuit which is connected between power supply and ground and which changes a voltage at a first end of a filter circuit toward a preset prescribed voltage according to the mode change detection signal.
Public/Granted literature
- US20110115456A1 DC-DC CONVERTER AND SEMICONDUCTOR INTEGRATED CIRCUIT Public/Granted day:2011-05-19
Information query
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