Device and method for examining usb port of test apparatus

A universal serial bus and test equipment technology, applied in measuring devices, error detection/correction, measuring electricity, etc., can solve problems such as unstable power supply, no power supply, insufficient power supply, etc.

Inactive Publication Date: 2012-05-30
ASKEY COMP +1
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  • Summary
  • Abstract
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Problems solved by technology

[0004] However, since the power source of electronic products with USB interface is provided by the USB port on the test equipment, when the power provided by the USB port is unstable or wrong, the electronic product cannot be operated normally due to insufficient or no power supply. Leading to test failure; in severe cases, it is easy to cause damage to electronic products due to unstable power supply or excessive power supply

Method used

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  • Device and method for examining usb port of test apparatus
  • Device and method for examining usb port of test apparatus
  • Device and method for examining usb port of test apparatus

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Embodiment Construction

[0024] In order to fully understand the purpose, features and effects of the present invention, the present invention will be described in detail by means of the following specific embodiments and accompanying drawings, as follows:

[0025] See first figure 1 , is a circuit diagram of a detection device for detecting a USB port of a testing device in an embodiment of the present invention. The detection device of the present invention includes a USB connector 101 , a connection unit 103 and an alarm unit 105 .

[0026] A general USB connector has a power supply pin VBUS, a ground pin GND, and signal pins DM and DP. In the present invention, the voltage that the USB port should originally provide is used as the judgment basis. When the voltage provided by the USB port of the test device is abnormal, the voltage difference between the power supply pin VBUS and the ground pin GND will deviate from the original voltage supplied by the USB port, which is about 5 volts. The USB c...

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Abstract

A device and method for examining a USB port of a test apparatus are characterized in that before a functional test is performed, with the test apparatus, on an electronic product equipped with a USB interface, the device including a USB connector, a connecting unit, and an alerting unit is connected to the USB port of the test apparatus so as to examine the power supply status of the USB port of the test apparatus. Accordingly, the electronic product equipped with the USB interface is efficiently protected against damage which might otherwise arise from unstable power supply to or an error in the USB port of the test apparatus during the ensuing functional test.

Description

technical field [0001] The present invention relates to a universal serial bus (USB, Universal Serial BUS) detection device and a detection method, more particularly to a detection device and a detection method for detecting a USB port of a testing device. Background technique [0002] Compared with other traditional interfaces, the advantage of the USB interface is the realization of plug and play, and plug and play (Plug and Play) is also called hot plugging (Hot Plugging). Electronic products using USB interfaces are very diverse. For example, devices such as USB mobile hard disks, USB wireless network cards, USB sound cards, and USB controllers are all included. For the user, as long as the USB connector of the electronic product is inserted into the USB port of the electronic device (such as a desktop computer, a portable computer, etc.), the electronic product will obtain power through the USB connector and the USB port of the electronic device. And automatically star...

Claims

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Application Information

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IPC IPC(8): G06F11/267
CPCH04L61/2038G06F3/00G01R31/31721G01R31/00
Inventor 沈惠忠谢青峰
Owner ASKEY COMP
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