Invention Grant
- Patent Title: Mode transition control method and circuit for a charge pump
- Patent Title (中): 电荷泵的模式转换控制方法和电路
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Application No.: US11723789Application Date: 2007-03-22
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Publication No.: US07474141B2Publication Date: 2009-01-06
- Inventor: Tsung-Wei Huang , Jien-Sheng Chen , Shui-Mu Lin , Nien-Hui Kung
- Applicant: Tsung-Wei Huang , Jien-Sheng Chen , Shui-Mu Lin , Nien-Hui Kung
- Applicant Address: TW Hsinchu
- Assignee: Richtek Technology Corp.
- Current Assignee: Richtek Technology Corp.
- Current Assignee Address: TW Hsinchu
- Agency: Rosenberg, Klein & Lee
- Priority: TW95117318A 20060516
- Main IPC: G05F1/10
- IPC: G05F1/10
Abstract:
A mode transition control method and circuit switch a charge pump to an operating mode with lower conversion ratio at a regular interval when the input voltage of the charge pump is detected close to a mode transition point, so as to prevent from misjudgment on the mode transition of the charge pump due to external noise, loading change, or inaccurate equivalent resistance of the charge pump.
Public/Granted literature
- US20080042729A1 Mode transition control method and circuit for a charge pump Public/Granted day:2008-02-21
Information query
IPC分类:
