Invention Grant
- Patent Title: High-voltage power supply device and image forming apparatus including the same
- Patent Title (中): 高压电源装置及包括其的图像形成装置
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Application No.: US12643451Application Date: 2009-12-21
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Publication No.: US08213823B2Publication Date: 2012-07-03
- Inventor: Tetsuya Yamamoto
- Applicant: Tetsuya Yamamoto
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Canon U.S.A., Inc. IP Division
- Priority: JP2008-333865 20081226; JP2009-258191 20091111
- Main IPC: G03G15/00
- IPC: G03G15/00 ; H01L41/08
Abstract:
In a power supply that outputs a high voltage by driving a piezoelectric element, a switching-on time period of a switching element in an initial frequency range when the piezoelectric element starts to be driven is set to a smaller value.
Public/Granted literature
- US20100166463A1 HIGH-VOLTAGE POWER SUPPLY DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME Public/Granted day:2010-07-01
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