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Electronic equipment and its main board

A technology for electronic equipment and motherboards, applied in electronic switches, electrical components, data processing power supplies, etc., and can solve problems such as damage to electronic components

Active Publication Date: 2019-07-05
海宁经开产业园区开发建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Current flowing to the motherboard may cause damage to electronic components on the motherboard

Method used

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  • Electronic equipment and its main board
  • Electronic equipment and its main board
  • Electronic equipment and its main board

Examples

Experimental program
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Effect test

Embodiment Construction

[0026] Below in conjunction with accompanying drawing and preferred embodiment the present invention is described in further detail:

[0027] Please refer to figure 1 , a preferred embodiment of the electronic device 100 of the present invention includes a motherboard 10 and a display 30 . The motherboard 10 includes a south bridge chip 11 , an anti-leakage circuit 13 and an interface 15 . The anti-leakage circuit 13 is connected with the south bridge chip 11 and the interface 15 . The display 30 includes an interface 31 . The interface 15 of the motherboard 10 is electrically connected to the interface 31 of the display 30 . In this embodiment, the interface 15 of the motherboard 10 is a Display Port, and the interface 31 of the display 30 is a Display Port or HDMI (High Definition Multimedia Interface, High Definition Multimedia Interface). The south bridge chip 11 is a PCH (Platform Controller Hub, platform control center).

[0028] Please refer to figure 2 , the int...

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PUM

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Abstract

An electronic device includes a mainboard and a display. The main board includes a south bridge chip, an anti-leakage circuit and an interface, and the interface is connected with the display. The anti-leakage circuit includes a control unit and a first signal transmission unit, and the control unit is connected with a power supply. The first signal transmission unit includes a first electronic switch, a second electronic switch and a first resistor, the first electronic switch is connected to the second electronic switch and grounded through the first resistor, and the second electronic switch is connected to the interface. When the main board is turned off and the display is not turned off, the power supply stops supplying power to the control unit, the control unit outputs a first control signal to the first and second electronic switches, the second electronic switch and the first electronic switch are in a pinch-off state, and the display outputs to the The signal of the interface is grounded through the second electronic switch and the first resistor. The invention also provides a motherboard. The electronic equipment of the invention can prevent electric leakage.

Description

technical field [0001] The invention relates to an electronic device and its main board. Background technique [0002] When an electronic device (such as a computer, etc.) is turned off, the main board of the electronic device is still connected to the display, and the current in the display will flow to the main board. Current flowing to the motherboard may cause damage to electronic components on the motherboard. Contents of the invention [0003] In view of the above, it is necessary to provide an electric leakage-proof electronic device. [0004] It is also necessary to provide a motherboard applied to the above-mentioned electronic equipment. [0005] An electronic device comprising a main board and a display, the main board includes a south bridge chip, an anti-leakage circuit and an interface, the interface is connected to the display, the anti-leakage circuit includes a control unit and a first A signal transmission unit, the control unit is connected to a power...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F1/26G06F1/16
CPCG06F1/26G06F1/28G09G5/006G09G2370/12G09G2370/22H02H7/20H03K17/6871
Inventor 邓均义陈俊生
Owner 海宁经开产业园区开发建设有限公司