Invention Grant
- Patent Title: Constant voltage circuit
- Patent Title (中): 恒压电路
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Application No.: US11988210Application Date: 2007-05-02
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Publication No.: US07705573B2Publication Date: 2010-04-27
- Inventor: Ippei Noda
- Applicant: Ippei Noda
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Dickstein Shapiro LLP
- Priority: JP2006-130566 20060509
- International Application: PCT/JP2007/059806 WO 20070502
- International Announcement: WO2007/129765 WO 20071115
- Main IPC: G05F1/565
- IPC: G05F1/565
Abstract:
A voltage change detecting circuit part amplifies an output signal of a differential amplifying circuit so that a slew rate thereof may be larger than that of a control signal output from a first error amplifying circuit to an output transistor, responding to change of an output voltage output from an output terminal quicker than a control signal output from the first error amplifying circuit to a first transistor, and causing a discharging circuit part to carry out discharging operation.
Public/Granted literature
- US20090121693A1 Constant Voltage Circuit Public/Granted day:2009-05-14
Information query
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