CN201242741Y - Rapid detection/regulation device for USB - Google Patents

Rapid detection/regulation device for USB Download PDF

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Publication number
CN201242741Y
CN201242741Y CNU2008200628294U CN200820062829U CN201242741Y CN 201242741 Y CN201242741 Y CN 201242741Y CN U2008200628294 U CNU2008200628294 U CN U2008200628294U CN 200820062829 U CN200820062829 U CN 200820062829U CN 201242741 Y CN201242741 Y CN 201242741Y
Authority
CN
China
Prior art keywords
light emitting
emitting diode
usb interface
usb
current
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNU2008200628294U
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Chinese (zh)
Inventor
石美然
Original Assignee
石美然
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 石美然 filed Critical 石美然
Priority to CNU2008200628294U priority Critical patent/CN201242741Y/en
Application granted granted Critical
Publication of CN201242741Y publication Critical patent/CN201242741Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

Disclosed is a detecting and adjusting device for indicating whether the USB interface of a computer works normally or not. The positive and negative polarity of the USB interface is used to design a current-limiting resistance and a light emitting diode to ensure that the current-limiting resistance and the light emitting diode are correspondingly connected. Two current-limiting resistances are in parallel connection on the positive polarity and the negative polarity of the USB interface, and two light emitting diodes are connected in series on a resistor; the positive polarity and two data lines are respectively connected with one current-limiting resistor and one light emitting diode in series. The connecting port adopts the USB interface, so as to support the hot plug and be used once plugged in.

Description

The USB quick monitoring adjuster
Technical field
The utility model relates to the whether short circuit of a kind of data line of indicating computer USB interface, open circuit, and whether whether normal and preposition USB power lead connects anti-detection and adjusting instrument in power supply, can judge rapidly whether the USB external equipment has the danger that burns out.
Background technology
The preposition USB interface of a lot of computer main boards does not identify concrete connection, and the unified standard of neither one.The data line of cabinet be again one one diffusing or and mainboard on interface do not match, whether can operate as normal after the installation, not have detecting instrument of practicality.At present, known USB detects and adjusting instrument has Shanghai to think electronics technology company limited production more " QUPT2 USB2.0 high speed tester " is the supporting testing apparatus of mainboard production line, bulky, carry inconvenience, and price high (drawing from http://www.shsiyue.com); " USB line tester " that the Dongguan City brocade is raised Science and Technology Ltd.'s production is applicable to the USB wire rod, earphone cord, power lead, netting twine, telephone wire, terminal line and various computer connecting wires material, function is more, the contact complexity, and price is more expensive, do not support hot plug and plug and play, be difficult for promoting the use of (drawing) from http://www.863171.com.
Summary of the invention
The utility model provides the whether short circuit of a kind of data line of indicating computer USB interface, open circuit, whether whether normal and preposition USB power lead connects anti-detection and adjusting instrument in power supply, can judge rapidly whether the USB external equipment has the danger that burns out, can allow computer assembling and maintenance personal accurately detect and debug the data line of USB interface, the user that also can be widely used in USB external equipment (as mobile phone, the USB flash disk of digital camera, band storage card and hard disk) detects the polarity of USB interface before inserting computer, avoid burning out.The connectivity port USB interface is supported hot plug, plug and play.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of indicate computer USB interface whether the inspection of operate as normal transfer device.Utilize the positive-negative polarity design current-limiting resistance and the light emitting diode of USB interface, make the corresponding connection of current-limiting resistance with light emitting diode.Two resistance current limlitings in parallel connection on the positive pole of USB interface, the negative pole, two light emitting diode branch roads of series connection on a resistance again; Anodal and two data lines connect respectively a current-limiting resistance and light emitting diode.The connectivity port USB interface is supported hot plug, plug and play.
The beneficial effects of the utility model are, can judge whether short circuit of data line, the open circuit of computer USB interface rapidly, whether whether normal and preposition USB power lead connects instead in power supply, whether the USB external equipment has the danger that burns out can allow computer assembling and maintenance personal accurately detect and debug the data line of USB interface, the user that also can be widely used in USB external equipment (as mobile phone, the USB flash disk of digital camera, band storage card and hard disk) detects the polarity of USB interface before inserting computer, avoid burning out.The connectivity port USB interface is supported hot plug, plug and play.And simple in structure, cheap, be easy to promote the use of.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing is circuit theory diagrams of the present utility model.
In the accompanying drawing, (1) USB interface, (2) data line 1, (3) Chip-R R1, (4) Chip-R R2, (5) Chip-R R3, (6) colour circle resistance R, (7) light emitting diode D4, (8) light emitting diode D3, (9) light emitting diode D2, (10) light emitting diode D1, (11) data line 2, negative pole "-", anodal "+".
Embodiment
In the drawings, be generally 5V at the positive pole (+) of USB interface (1), the voltage between negative pole (-), the colour circle resistance R (6) in last one 75 Europe in parallel and Chip-R R3 (5) current limliting in 330 Europe, on Chip-R R3 (5), connect again last two light emitting diode D3 (8), light emitting diode D4 (7) branch road, can reach the purpose of display power supply polarity in anodal, unidirectional conducting respectively when negative pole changes; Voltage between anodal (+) and data line 1 (2), data line 2 (11) all is 4.9V usually, anodal (+) and data line 1 (2) connected the Chip-R R1 (3) and the light emitting diode D1 (10) in one 330 Europe, anodal (+) and data line 2 (11) connected the Chip-R R2 (4) and the light emitting diode D2 (9) in one 330 Europe reach whether video data line 1 (2) is connected normally with data line 2 (11), the purpose of short circuit or open circuit whether.
In the embodiment of the normal operating conditions that detects USB interface, USB interface (1) is inserted the USB interface of computer, the low expression of light emitting diode D1 (10) brightness data line 1 (2) is working properly, and the expression data line open circuit that do not work is as the same bright expression short circuit with light emitting diode D3 (8); The low expression of light emitting diode D2 (9) brightness data line 2 (11) is working properly, and the expression data line open circuit that do not work is as the same bright expression short circuit with light emitting diode D3 (8); The high expression of light emitting diode D3 (8) green glow brightness USB interface is working properly, does not work or the low expression of brightness main board power supply fault; Light emitting diode D4 (7) does not work and represents that USB interface is working properly, can safe circumscribed USB equipment.
In the embodiment of the malfunction that detects USB interface, light emitting diode D4 (7) sends out a warning and represents that electric power polarity connects instead, can burn out circumscribed USB equipment<light emitting diode D3 this moment (8), light emitting diode D2 (9), light emitting diode D1 (10) can bright green glows 〉.Dangerous! Only need during debugging the both positive and negative polarity connector lug on the mainboard is changed slotting getting final product.

Claims (3)

1. a USB quick monitoring adjuster utilizes the positive-negative polarity of USB interface to design current-limiting resistance and light emitting diode, it is characterized in that: the corresponding connection with light emitting diode of current-limiting resistance.
2. USB quick monitoring adjuster according to claim 1 is characterized in that: two resistance current limlitings in parallel connection on the positive pole of USB interface, the negative pole, two light emitting diode branch roads of series connection on a resistance again; Anodal and two data lines connect respectively a current-limiting resistance and light emitting diode.
3. USB quick monitoring adjuster according to claim 1 is characterized in that: the connectivity port USB interface, support hot plug, plug and play.
CNU2008200628294U 2008-04-08 2008-04-08 Rapid detection/regulation device for USB Expired - Fee Related CN201242741Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200628294U CN201242741Y (en) 2008-04-08 2008-04-08 Rapid detection/regulation device for USB

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200628294U CN201242741Y (en) 2008-04-08 2008-04-08 Rapid detection/regulation device for USB

Publications (1)

Publication Number Publication Date
CN201242741Y true CN201242741Y (en) 2009-05-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008200628294U Expired - Fee Related CN201242741Y (en) 2008-04-08 2008-04-08 Rapid detection/regulation device for USB

Country Status (1)

Country Link
CN (1) CN201242741Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104777385A (en) * 2015-04-21 2015-07-15 东莞华贝电子科技有限公司 Jig and method for detecting power supply reverse connection and data reverse connection protection function of mobile terminal
CN104793081A (en) * 2015-04-21 2015-07-22 深圳市九洲电器有限公司 USB (universal serial bus) interface detection device and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104777385A (en) * 2015-04-21 2015-07-15 东莞华贝电子科技有限公司 Jig and method for detecting power supply reverse connection and data reverse connection protection function of mobile terminal
CN104793081A (en) * 2015-04-21 2015-07-22 深圳市九洲电器有限公司 USB (universal serial bus) interface detection device and method
CN104777385B (en) * 2015-04-21 2017-06-13 东莞华贝电子科技有限公司 Tool and method for detecting mobile terminal reverse power connection and data reversal connection protection function

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090520

Termination date: 20100408

C17 Cessation of patent right