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Mainboard and electronic device using the mainboard

A motherboard and electronic switch technology, applied in the direction of responding to error generation, responding to error safety measures, etc., can solve problems such as interfering with the power supply sequence of the motherboard and the failure of the motherboard to return

Active Publication Date: 2022-07-05
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 using the mainboard
  • Mainboard and electronic device using the mainboard
  • Mainboard and electronic device using the mainboard

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Experimental program
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Embodiment Construction

[0046] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments.

[0047] In order to make the purpose, technical solutions and advantages of the present invention clearer, the mainboard in the present invention and the electronic device using the mainboard will be further described and related in detail below with reference to the accompanying drawings and embodiments.

[0048] like figure 1 and figure 2 As shown, in a preferred embodiment, an electronic device 300 includes a mainboard 100 and a display 200, the mainboard 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...

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Abstract

A mainboard is used to be electrically connected to a display, the display includes a slot and a graphics card inserted into the slot, the slot outputs a leakage voltage when the graphics card is abnormal, the motherboard includes a processing chip and a leakage protection circuit, the The leakage protection circuit includes a power supply control chip and a switch unit. The power supply control chip judges whether to provide a working voltage for the slot according to the power supply signal. The switch unit is connected to the common terminal between the slot and the power supply control chip. When the graphics card is abnormal and the motherboard is not powered on, the power good signal controls the switch unit to be turned on and the common terminal is set to a low level state, so as to disconnect the slot and the power control chip. The present invention also provides an electronic device applying the motherboard. In this way, there will be no leakage of electricity between the display and the motherboard, a normal power sequence is ensured, and the risk that the motherboard cannot return to the operating system from shutdown is avoided.

Description

technical field [0001] The invention relates to a mainboard and an electronic device using the mainboard. Background technique [0002] Usually, the motherboard establishes a communication connection with a display interface (Display Port, DP) cable and a graphics card and a display. 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 the motherboard unable to return to the operating system after being woken up from shutdown or sleep. SUMMARY OF THE INVENTION [0003] In view of the above, it is necessary to provide a mainboard and an electronic device using the mainboard. [0004] A mainboard is used for electrically connecting a display to establish a communication connection, the display includes a slot and a graphics card inserted into the slot, the slot outputs a leakage voltage when the graphics card is abnormal, and the Signal processing chip and...

Claims

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Application Information

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