Invention Grant
US08193853B2 Efficiency and thermal improvement of a charge pump by mixing different input voltages
失效
通过混合不同的输入电压对电荷泵的效率和热改进
- Patent Title: Efficiency and thermal improvement of a charge pump by mixing different input voltages
- Patent Title (中): 通过混合不同的输入电压对电荷泵的效率和热改进
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Application No.: US12816613Application Date: 2010-06-16
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Publication No.: US08193853B2Publication Date: 2012-06-05
- Inventor: Wei-Lun Hsieh , Hung-Sung Chu , Der-Jiunn Wang , Kuo-Chen Tsai , Wei-Hsin Wei
- Applicant: Wei-Lun Hsieh , Hung-Sung Chu , Der-Jiunn Wang , Kuo-Chen Tsai , Wei-Hsin Wei
- Applicant Address: TW Hsinchu
- Assignee: Richtek Technology Corp.
- Current Assignee: Richtek Technology Corp.
- Current Assignee Address: TW Hsinchu
- Agency: Muncy, Geissler, Olds & Lowe, PLLC
- Priority: TW98120824A 20090622
- Main IPC: G05F1/10
- IPC: G05F1/10
Abstract:
For a charge pump, a control circuit switches two or more input voltages to apply to one or more pumping capacitors under auto-sensing control to modulate a maximum pumping voltage as close as to a demanded output voltage to thereby reduce the difference between the maximum pumping voltage and the output voltage for efficiency and thermal improvement of the charge pump. The maximum pumping voltage is produced by mixing the different input voltages and the charge pump may provide more operation modes.
Public/Granted literature
- US20100321099A1 EFFICIENCY AND THERMAL IMPROVEMENT OF A CHARGE PUMP BY MIXING DIFFERENT INPUT VOLTAGES Public/Granted day:2010-12-23
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