Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Fuminori Hashimoto0
Date of Patent
April 24, 2007
0Patent Application Number
109919880
Date Filed
November 18, 2004
0Patent Primary Examiner
Patent abstract
A charge pump circuit which uses a constant current from a constant current source for charging or discharging a capacitor and which obtains an output voltage by shifting a power supply voltage using a charged voltage of the charged capacitor. With this structure, a large current can be limited and generation of noise can be prevented.
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