发明申请
- 专利标题: CHARGE PUMP
- 专利标题(中): 电荷泵
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申请号: US13082918申请日: 2011-04-08
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公开(公告)号: US20120256681A1公开(公告)日: 2012-10-11
- 发明人: Atul KATOCH , Cormac Michael O'CONNELL
- 申请人: Atul KATOCH , Cormac Michael O'CONNELL
- 申请人地址: TW Hsinchu
- 专利权人: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
- 当前专利权人: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
- 当前专利权人地址: TW Hsinchu
- 主分类号: G05F3/02
- IPC分类号: G05F3/02
摘要:
A charge pump circuit comprises a first node, a second node, and at least one capacitance stage coupled between the first node and the second node. Capacitance stages of the at least one capacitance stage are coupled in series. A capacitance stage of the at least one capacitance stage includes a capacitive device and a voltage limiter coupled in parallel with the capacitor. The voltage limiter is configured to limit a voltage dropped across the capacitor. The capacitive device and the voltage limiter are configured such that a first current flowing through a first branch having the voltage limiter is more than a second current flowing through a second branch having the capacitive device.
公开/授权文献
- US08581658B2 Charge pump 公开/授权日:2013-11-12
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