Invention Grant
US08217633B2 Voltage step-up/step-down switching regulator and control method thereof
失效
电压升压/降压开关稳压器及其控制方法
- Patent Title: Voltage step-up/step-down switching regulator and control method thereof
- Patent Title (中): 电压升压/降压开关稳压器及其控制方法
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Application No.: US11805751Application Date: 2007-05-23
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Publication No.: US08217633B2Publication Date: 2012-07-10
- Inventor: Shinya Shimizu
- Applicant: Shinya Shimizu
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Cooper & Dunham LLP
- Priority: JP2006-142755 20060523
- Main IPC: G05F1/613
- IPC: G05F1/613 ; G05F3/16 ; G05F1/24
Abstract:
A switching regulator is provided that includes a step-down circuit configured to output a voltage lower than an input voltage, a step-up circuit configured to output a voltage higher than the input voltage, and a control unit having a voltage detector configured to detect an output voltage and being configured to prohibit operation of the step-up circuit until the output voltage rises to a first voltage lower than the input voltage.
Public/Granted literature
- US20070273341A1 Voltage step-up/step-down switching regulator and control method thereof Public/Granted day:2007-11-29
Information query
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