Invention Grant
- Patent Title: Charge pump circuit
- Patent Title (中): 电荷泵电路
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Application No.: US11188855Application Date: 2005-07-26
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Publication No.: US08040168B2Publication Date: 2011-10-18
- Inventor: Shiro Sakiyama , Yusuke Tokunaga , Shiro Dosho , Toru Iwata , Takashi Hirata
- Applicant: Shiro Sakiyama , Yusuke Tokunaga , Shiro Dosho , Toru Iwata , Takashi Hirata
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: JP2004-322083 20041105
- Main IPC: H03L7/06
- IPC: H03L7/06 ; G05F3/02

Abstract:
The charge pump circuit includes: a first switch for controlling either one of push operation and pull operation based on a first control signal; a current mirror circuit composed of a transistor different in attribute from the first switch; and a second switch composed of a transistor same in characteristic as a transistor constituting the first switch, for controlling input of a current into the current mirror circuit based on a second control. The other operation, the push operation or the pull operation, is performed with a current output from the current mirror circuit.
Public/Granted literature
- US20060097772A1 Charge pump circuit Public/Granted day:2006-05-11
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