Invention Grant
- Patent Title: Multiple-stage charge pump circuit with charge recycle circuit
- Patent Title (中): 具有充电回收电路的多级电荷泵电路
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Application No.: US11878653Application Date: 2007-07-26
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Publication No.: US07808301B2Publication Date: 2010-10-05
- Inventor: Chung-Kuang Chen , Chun-Hsiung Hung , Yi-Te Shih
- Applicant: Chung-Kuang Chen , Chun-Hsiung Hung , Yi-Te Shih
- Applicant Address: TW Hsinchu
- Assignee: Macronix International Co., Ltd.
- Current Assignee: Macronix International Co., Ltd.
- Current Assignee Address: TW Hsinchu
- Agency: Bacon & Thomas, PLLC
- Main IPC: G05F1/10
- IPC: G05F1/10

Abstract:
A multiple-stage charge pump circuit includes first and second pump capacitors, a charge recycle circuit, and first and second transfer circuits. The charge recycle circuit includes first and second driving circuits and a switch circuit turning off to make a node floating and to couple first terminals of the first and second pump capacitors to the node in a first time period. The switch circuit and first and second driving circuits provide a specific voltage to the node and control voltages at the first terminals of the first and second pump capacitors in second and third time periods, respectively. The first and second transfer circuits provide a high voltage to a second terminal of the first pump capacitor in the second time period, and provide the voltage of the second terminal of the first pump capacitor to a second terminal of the second pump capacitor in the third time period.
Public/Granted literature
- US20090027108A1 Multiple-stage charge pump circuit with charge recycle circuit Public/Granted day:2009-01-29
Information query
IPC分类: