Electronic equipment and main board thereof
A technology for electronic equipment and motherboards, which is applied in the direction of electronic switches, electrical components, data processing power supplies, etc., and can solve problems such as damage to electronic components
Active Publication Date: 2017-01-04
海宁经开产业园区开发建设有限公司
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- 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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Embodiment Construction
[0013] Below in conjunction with accompanying drawing and preferred embodiment the present invention is described in further detail:
[0014] 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).
[0015] Please refer to figure 2 , the int...
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The invention discloses electronic equipment. The electronic equipment comprises a main board and a display, wherein the main board comprises a south bridge chip, an anticreep circuit and an interface; the interface is connected with the display; the anticreep circuit comprises a control unit and a first signal transmission unit; the control unit is connected with a power supply; the first signal transmission unit comprises a first electronic switch, a second electronic switch and a first resistor; the first electronic switch is connected with the second electronic switch, and is grounded through the first resistor; the second electronic switch is connected with the interface. When the main board is off, and the display is still on, the power supply stops supplying power to the control unit, and the control unit outputs a first control signal to the first and second electronic switches; the second electronic switch and the second electronic switch are in pinch-off state; a signal output from the display to the interface is grounded through the second electronic switch and the first resistor. The invention further provides the main board. The electronic equipment disclosed by the invention can prevent creepage.
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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Login to View More 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