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Mainboard and electronic device applying mainboard

A motherboard, electronic switch technology, applied in the direction of responding to the generation of errors, responding to error safety measures, etc., can solve the problems of the motherboard not returning, interfering with the power sequence of the motherboard, etc.

Active Publication Date: 2019-08-06
HONG FU JIN PRECISION IND WUHAN CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the graphics card is abnormal, the display will leak power to the motherboard, which will interfere with the normal power sequence of the motherboard, making it impossible for the motherboard to return to the operating system after waking up from shutdown or sleep

Method used

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  • Mainboard and electronic device applying mainboard
  • Mainboard and electronic device applying mainboard
  • Mainboard and electronic device applying mainboard

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Embodiment Construction

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0047] In order to make the object, technical solution and advantages of the present invention clearer, the main board and the electronic device using the main board in the present invention will be further described in detail and related illustrations in conjunction with the accompanying drawings and embodiments.

[0048] Such as figure 1 and figure 2 As shown, in a preferred embodiment, an electronic device 300 includes a main board 100 and a display 200 , the main board 100 is electrically connected to the display 200 to establish a communication connection.

[0049] The motherboard 100 includes a leakage protection circuit 10 and a processing chip 20 . The dis...

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Abstract

A mainboard is used for electrically connecting a display, and the display comprises a slot and a display card which is connected with the slot in an inserted mode. The slot outputs an electric leakage voltage when the display card is abnormal, the mainboard comprises a processing chip and an electric leakage protection circuit, and the electric leakage protection circuit comprises a power supplycontrol chip and a switch unit. The power supply control chip judges whether the working voltage is provided for the slot or not according to the power supply good signal, and the switch unit is connected to a common end point between the slot and the power supply control chip, and when the display card is abnormal and the mainboard is not started, the power supply good signal controls the switchunit to be conducted and enables the common end point to be in a low level state, so that the slot and the power supply control chip are disconnected. The invention further provides an electronic device applying the mainboard. Therefore, electric leakage between the display and the mainboard is avoided, the normal power supply time sequence is ensured, and the risk that the mainboard cannot returnto an operating system from a shutdown state is avoided.

Description

technical field [0001] The invention relates to a main board and an electronic device using the main board. Background technique [0002] Usually, the motherboard establishes a communication connection with the monitor through a display port (Display Port, DP) cable, a graphics card and a monitor. However, when the graphics card is abnormal, the display will leak power to the motherboard, which will interfere with the normal power sequence of the motherboard, making it impossible for the motherboard to return to the operating system after waking up from shutdown or sleep. Contents of the invention [0003] In view of the above, it is necessary to provide a motherboard and an electronic device using the motherboard. [0004] A mainboard is used to electrically connect a display to establish a communication connection. The display includes a slot and a graphics card plugged into the slot. The slot outputs a leakage voltage when the graphics card is abnormal. Signal process...

Claims

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Application Information

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IPC IPC(8): G06F11/07
CPCG06F11/0796
Inventor 邓均义陈俊生
Owner HONG FU JIN PRECISION IND WUHAN CO LTD