Invention Grant
US08417972B2 Power supply control circuit to save electrical power of an electronic device in stand-by or powered off modes
有权
电源控制电路，用于在备用或关机模式下节省电子设备的电力
- Patent Title: Power supply control circuit to save electrical power of an electronic device in stand-by or powered off modes
- Patent Title (中): 电源控制电路，用于在备用或关机模式下节省电子设备的电力
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Application No.: US12762988Application Date: 2010-04-19
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Publication No.: US08417972B2Publication Date: 2013-04-09
- Inventor: Yong-Hua Fan , Ching-Chung Lin
- Applicant: Yong-Hua Fan , Ching-Chung Lin
- Applicant Address: CN Shenzhen TW Miao-Li County
- Assignee: Innocom Technology (Shenzhen) Co., Ltd.,Chimei Innolux Corporation
- Current Assignee: Innocom Technology (Shenzhen) Co., Ltd.,Chimei Innolux Corporation
- Current Assignee Address: CN Shenzhen TW Miao-Li County
- Agency: WPAT PC
- Agent Justin King
- Priority: CN200910307139 20090917
- Main IPC: G06F1/00
- IPC: G06F1/00 ; G06F1/26 ; G06F1/32
Abstract:
A power supply control circuit used to control a power supply to supply a MCU includes a first transistor switch, a RC circuit, a power switch control circuit, and an input signal control circuit. When the power switch control circuit is grounded via the MCU, the RC circuit is discharged to ground and the first transistor switch is switched on, such that the power supply supplies power to the MCU. When the MCU outputs a control signal to the input signal control circuit, the RC circuit is discharged to ground and the first transistor switch is switched on, such that the power supply supplies power to the MCU. When the MCU stops outputting the control signal to the input signal control circuit, the RC circuit is charged and the first transistor switch is switched off, such that the power supply does not supply power to the MCU.
Public/Granted literature
- US20110066866A1 POWER SUPPLY CONTROL CIRCUIT AND ELECTRONIC DEVICE USING THE SAME Public/Granted day:2011-03-17
Information query
