Invention Grant
- Patent Title: Power supply including zero-cross detection circuit, and image forming apparatus
- Patent Title (中): 电源包括过零检测电路和图像形成装置
-
Application No.: US13710208Application Date: 2012-12-10
-
Publication No.: US08761631B2Publication Date: 2014-06-24
- Inventor: Yasuhiro Shimura
- Applicant: Canon Kabushiki Kaisha
- 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: JP2011-271681 20111212
- Main IPC: G03G15/00
- IPC: G03G15/00 ; G03G15/20
Abstract:
A power supply includes a first capacitor, a resistor for discharging an electric charge of the first capacitor and for detecting zero crossing of the AC voltage input from the AC power supply, a second capacitor, and a frame ground o and a discharge resistor having a resistance value smaller than the resistor and configured to discharge an electric charge of the second capacitor, and switches between a state where a current to the discharge resistor is cut off and a state where a current flows through the discharge resistor.
Public/Granted literature
- US20130148998A1 POWER SUPPLY INCLUDING ZERO-CROSS DETECTION CIRCUIT, AND IMAGE FORMING APPARATUS Public/Granted day:2013-06-13
Information query
