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Mainboard switch test device

A technology of switch machine testing and main board, which is applied in the direction of error detection/correction, instrumentation, electrical digital data processing, etc., can solve the problems of increasing production cost and manpower, and achieve the effect of easy implementation, low cost and simple circuit

Inactive Publication Date: 2011-12-21
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to complete this test, it takes a lot of manpower, which increases the production cost

Method used

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  • Mainboard switch test device
  • Mainboard switch test device

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Embodiment Construction

[0011] Please refer to figure 1 , The preferred embodiment of the mainboard switch machine testing device of the present invention includes a pulse signal generating circuit 10 , a first control circuit 20 and a second control circuit 30 .

[0012] The pulse signal generating circuit 10 includes a 555 timer U1, two resistors R6, R7, and two capacitors C3, C4, and the 555 timer U1 includes a power supply terminal 11, a low trigger terminal 12, and a reset terminal 13 , a control terminal 14, a high trigger terminal 15, a discharge terminal 16, an output terminal 17 and a ground terminal 18. The power supply terminal 11 is connected to the reset terminal 13 and then connected to the 5V_STBY voltage of a computer motherboard to be tested. After the low trigger terminal 12 is connected to the high trigger terminal 15, it is grounded through the capacitor C3, and through the resistors R6 and R7 The 5V_STBY voltage is connected, the discharge terminal 16 is connected to the connect...

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PUM

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Abstract

A main board switch machine test device, comprising: a pulse signal generating circuit, its input end receives a standby voltage signal, and generates a pulse signal at the output end; a first control circuit, including a first input end, a second Input terminal and an output terminal, the first input terminal receives the pulse signal, and outputs a first control signal to the input and output controller on the computer motherboard at the output terminal, the input and output controller receives the first low level After the control signal, the computer is controlled to start up; and a second control circuit includes a first input terminal, a second input terminal and an output terminal, the first input terminal of which receives the standby voltage signal, and the second input terminal receives the system voltage of the motherboard signal, after the computer is softly shut down, its output end outputs a second control signal to the second input end of the first control circuit, so that the first input end of the first control circuit can be turned on again after receiving a low-level pulse signal .

Description

technical field [0001] The invention relates to a mainboard power-on / off test device, in particular to a main board power-on / off test device which can perform cycle power-on / off tests on a computer main board. Background technique [0002] In the process of computer quality verification by computer manufacturers, the DC Power on / off test of the computer motherboard, that is, the DC power on / off test is an important verification item. The traditional test method is that the tester manually presses the computer power button regularly to power on the computer motherboard, and the essence of manually pressing the computer power button is to give a low-level signal to the input and output controller on the computer motherboard, and release the computer power supply. After the key is pressed, the input and output controller is set back to a high level, thereby completing the computer booting. Execute the test program after the computer is turned on, and the tester manually operat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/267H03K3/53H03K17/60
Inventor 熊金良
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD