TWI409483B - Usb component tester - Google Patents

Usb component tester Download PDF

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Publication number
TWI409483B
TWI409483B TW97148422A TW97148422A TWI409483B TW I409483 B TWI409483 B TW I409483B TW 97148422 A TW97148422 A TW 97148422A TW 97148422 A TW97148422 A TW 97148422A TW I409483 B TWI409483 B TW I409483B
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Taiwan
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usb interface
interface component
resistor
connector
usb
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TW97148422A
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Chinese (zh)
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TW201022695A (en
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Zhen-Shan Cui
Lian-Zhong Gong
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Hon Hai Prec Ind Co Ltd
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Publication of TWI409483B publication Critical patent/TWI409483B/en

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Abstract

A universal serial bus (USB) component tester includes a USB port, a connector, first and second resistors, and a first indicator. The connector is configured for connecting to a plug of a USB component. A power terminal of the connector is connected to a first data terminal of the connector, and also connected to a second data terminal and a ground terminal of the connector via the first resistor. A power terminal of the USB port is connected to a power supply. A first data terminal of the USB port is connected to a first terminal of the first indicator via the second resistor. A second terminal of the first indicator is connected to a second data terminal of the USB port, and a ground terminal of the USB port is grounded.

Description

USB介面元件測試裝置USB interface component test device

本發明係關於一種USB(Universal Serial Bus，通用串列匯流排)介面元件測試裝置。The invention relates to a USB (Universal Serial Bus) interface component testing device.

目前主機板一般都採用支援USB功能之控制晶片組，主機板上也安裝有USB介面，而且主機板上還預留有USB插針(一般為8針或9針，可支援一對USB介面)，透過將一USB介面元件與預留之USB插針相連來提供額外之後置USB介面或前置USB介面，方便用戶使用。At present, the motherboard generally adopts a control chipset that supports USB functions. A USB interface is also installed on the motherboard, and a USB pin is reserved on the motherboard (usually 8-pin or 9-pin to support a pair of USB interfaces). Provides an additional rear USB interface or front USB interface by connecting a USB interface component to a reserved USB pin for user convenience.

如圖1所示，習知之USB介面元件100通常包括一8孔插頭P1、一對與該插頭P1相連之USB介面P2及P3，該插頭P1豎向排列之每4個孔為一組且每組對應與一USB介面之電源端、第一資料端、第二資料端及接地端對應進行連接，該插頭P1之插孔可對應安裝於主機板之USB插針上，該兩USB介面P2及P3可作為後置USB介面或前置USB介面供用戶使用。如果該USB介面元件100之插頭P1與USB介面P2及P3之內部連線錯誤或者插頭P1和USB介面P2及P3之品質不良，都將影響USB介面元件100正常工作。As shown in FIG. 1, the conventional USB interface component 100 generally includes an 8-hole plug P1, a pair of USB interfaces P2 and P3 connected to the plug P1, and each of the four holes arranged vertically in the plug P1 is a group and each The group corresponds to a power supply end of the USB interface, the first data end, the second data end and the ground end, and the jack of the plug P1 can be correspondingly mounted on the USB pin of the motherboard, the two USB interfaces P2 and The P3 can be used as a rear USB interface or a front USB interface for users. If the internal connection of the plug P1 of the USB interface component 100 and the USB interface P2 and P3 is incorrect or the quality of the plug P1 and the USB interfaces P2 and P3 is poor, the USB interface component 100 will be affected.

鑒於上述內容，有必要提供一種USB介面元件測試裝置，可對USB介面元件進行測試，以保證USB介面元件能夠正常工作。In view of the above, it is necessary to provide a USB interface component testing device that can test USB interface components to ensure that the USB interface components can work normally.

一種USB介面元件測試裝置，包括一USB介面、一 連接器、一第一電阻及一第二電阻、一第一指示裝置，該連接器用於與一USB介面元件之一插頭連接，該連接器之第一電源端連接該連接器之第一資料端，還透過該第一電阻連接該連接器之第二資料端及第一接地端，該USB介面之電源端連接一電源，該USB介面之第一資料端透過該第二電阻連接該第一指示裝置之第一端，該第一指示裝置之第二端連接該USB介面之第二資料端，該USB介面之接地端接地。A USB interface component testing device, comprising a USB interface, a a connector, a first resistor and a second resistor, and a first indicating device, wherein the connector is connected to one plug of a USB interface component, and the first power terminal of the connector is connected to the first data end of the connector And connecting, by the first resistor, the second data end of the connector and the first ground end, the power end of the USB interface is connected to a power source, and the first data end of the USB interface is connected to the first indication through the second resistor The first end of the device is connected to the second end of the USB interface, and the ground end of the USB interface is grounded.

該USB介面元件測試裝置透過與USB介面元件相連對USB介面元件進行測試，當該USB介面元件工作正常時，才有電流流過第一指示裝置，從而實現指示USB介面元件是否能夠正常工作。The USB interface component testing device tests the USB interface component by connecting with the USB interface component. When the USB interface component works normally, current flows through the first indicating device, thereby indicating whether the USB interface component can work normally.

請參閱圖2，本發明USB介面元件測試裝置200之較佳實施方式包括一箱體202、設置於該箱體202外部之一電源開關204、一USB介面Pa、一針式連接器J1、發光二極體D1及D2。該USB介面Pa用於透過一USB轉接線選擇與圖1中之USB介面元件100之該兩USB介面P2及P3中之一個對應連接，該針式連接器J1為一8針連接器，用於與圖1中之USB介面元件100之插頭P1相連。該發光二極體D1用於指示所測試之USB介面元件100是否正常工作，該發光二極體D2用於指示USB介面元件測試裝置200是否上電工作。Referring to FIG. 2, a preferred embodiment of the USB interface component testing device 200 of the present invention includes a box 202, a power switch 204 disposed outside the box 202, a USB interface Pa, and a pin connector J1. Diodes D1 and D2. The USB interface Pa is used to connect to one of the two USB interfaces P2 and P3 of the USB interface component 100 in FIG. 1 through a USB adapter cable. The pin connector J1 is an 8-pin connector. Connected to the plug P1 of the USB interface component 100 of FIG. The LEDs D1 are used to indicate whether the tested USB interface component 100 is working properly. The LEDs D2 are used to indicate whether the USB interface component testing device 200 is powered on.

該兩發光二極體D1及D2作為指示裝置，在其他實施方式中，也可採用其他類型之指示裝置，例如蜂鳴器 等。The two LEDs D1 and D2 are used as indicating devices. In other embodiments, other types of indicating devices, such as buzzers, may also be used. Wait.

請參閱圖3，本發明USB介面元件測試裝置之較佳實施方式還包括設置於該箱體202內部之電阻R1－R4、兩二極體Da及Db。該USB介面Pa之電源端V1透過該電源開關204連接一電源Vc(本實施方式為設置於該箱體202內部之電池，也可透過電源線連接外部電源)，該USB介面Pa之電源端V1還透過該電阻R3連接發光二極體D2之陽極，發光二極體D2之陰極接地。該USB介面Pa之資料端Dat1＋透過該電阻R2連接該發光二極體D1之陽極，該發光二極體D1之陰極連接該USB介面Pa之資料端Dat1－，該USB介面Pa之接地端GND1接地。該針式連接器J1之電源端V2連接該二極體Da之陽極，該二極體Da之陰極連接該針式連接器J1之資料端Dat2＋，還透過該電阻R1連接該針式連接器J1之資料端Dat2－及接地端GND2，該針式連接器J1之電源端V3連接該二極體Db之陽極，該二極體Db之陰極連接該針式連接器J1之資料端Dat3＋，還透過該電阻R4連接該針式連接器J1之資料端Dat3－及接地端GND3。Referring to FIG. 3, a preferred embodiment of the USB interface component testing device of the present invention further includes resistors R1 - R4 and two diodes Da and Db disposed inside the housing 202. The power terminal V1 of the USB interface Pa is connected to a power source Vc through the power switch 204 (this embodiment is a battery disposed inside the box 202, and can also be connected to an external power source through a power line), and the power terminal V1 of the USB interface Pa The anode of the light-emitting diode D2 is also connected through the resistor R3, and the cathode of the light-emitting diode D2 is grounded. The data terminal Dat1+ of the USB interface Pa is connected to the anode of the light-emitting diode D1 through the resistor R2. The cathode of the LED diode D1 is connected to the data terminal Dat1- of the USB interface Pa, and the ground terminal GND1 of the USB interface Pa is grounded. . The power terminal V2 of the pin connector J1 is connected to the anode of the diode Da, the cathode of the diode Da is connected to the data terminal Dat2+ of the pin connector J1, and the pin connector J1 is also connected through the resistor R1. The data terminal Dat2- and the ground terminal GND2, the power terminal V3 of the pin connector J1 is connected to the anode of the diode Db, and the cathode of the diode Db is connected to the data terminal Dat3+ of the pin connector J1. The resistor R4 is connected to the data terminal Dat3- of the pin connector J1 and the ground terminal GND3.

由於所測試之USB介面元件100內部電路之電容帶電，因此當將USB介面元件100之插頭P1插入該針式連接器J1中時，該兩電阻R1和R4用於給該電容放電，以消除電容帶電引起測試過程中之錯誤判斷。該兩二極體Da及Db用於防止圖1中之USB介面元件100之插頭P1插接圖2中之針式連接器J1時插反，即如果插反時，可阻止電流從USB介面元件測試裝置200流過USB介面元 件100。Since the capacitance of the internal circuit of the tested USB interface component 100 is charged, when the plug P1 of the USB interface component 100 is inserted into the pin connector J1, the two resistors R1 and R4 are used to discharge the capacitor to eliminate the capacitance. The charging causes the wrong judgment during the test. The two diodes Da and Db are used to prevent the plug P1 of the USB interface component 100 in FIG. 1 from being plugged in when the pin connector J1 of FIG. 2 is plugged in, that is, if the plug is reversed, the current can be blocked from the USB interface component. The test device 200 flows through the USB interface element Piece 100.

在本實施方式中，該兩電阻R1及R4之電阻值均為2000歐姆，該兩電阻R2及R3之電阻值均為200歐姆。該電源Vc之電壓為5伏特之直流電壓。在其他實施方式中，該USB介面Pa之數量不限於一個及該針式連接器J1之針數不限於8根，可根據不同型號USB介面元件100之插頭之數量及結構對應進行調整。In the present embodiment, the resistance values of the two resistors R1 and R4 are both 2000 ohms, and the resistance values of the two resistors R2 and R3 are both 200 ohms. The voltage of the power source Vc is a direct current voltage of 5 volts. In other embodiments, the number of the USB interfaces Pa is not limited to one and the number of pins of the pin connector J1 is not limited to eight, and can be adjusted according to the number and structure correspondence of the plugs of different types of USB interface components 100.

再參閱圖4，具體測試過程之工作原理如下：當使用USB介面元件測試裝置200測試該USB介面元件100工作是否正常時，首先將USB介面元件100之插頭P1正確插入該針式連接器J1中，即針式連接器J1之電源端V2及V3、資料端Dat2＋、Dat3＋、Dat2－及Dat3－、接地端GND2及GND3與USB介面P2或P3建立連接，然後將一良好之USB轉接線400之一USB插頭402與USB介面Pa相連，將另一USB插頭404與USB介面P2或P3中之一個相連。以將USB插頭404與USB介面P2相連為例，則針式連接器J1之電源端V2、資料端Dat2＋及Dat2－、接地端GND2透過USB介面P2、USB轉接線400與USB介面Pa建立連接，最後開啟電源開關204，該發光二極體D2發光，表示USB介面元件測試裝置200已上電工作。Referring to FIG. 4, the specific test process works as follows: When the USB interface component test device 200 is used to test whether the USB interface component 100 works normally, the plug P1 of the USB interface component 100 is first correctly inserted into the pin connector J1. , that is, the power terminals V2 and V3 of the pin connector J1, the data terminals Dat2+, Dat3+, Dat2- and Dat3-, the ground terminals GND2 and GND3 are connected with the USB interface P2 or P3, and then a good USB adapter cable 400 One of the USB plugs 402 is connected to the USB interface Pa, and the other USB plug 404 is connected to one of the USB interfaces P2 or P3. For example, connecting the USB plug 404 to the USB interface P2, the power terminal V2 of the pin connector J1, the data terminals Dat2+ and Dat2-, and the ground terminal GND2 are connected to the USB interface Pa through the USB interface P2 and the USB extension cable 400. Finally, the power switch 204 is turned on, and the light emitting diode D2 emits light, indicating that the USB interface component testing device 200 has been powered on.

當該USB介面元件100工作正常時，電源Vc提供之電流還經該USB介面Pa之電源端V1、針式連接器J1之電源端V2、針式連接器J1之資料端Dat2＋、USB介面Pa之資料端Dat1＋、電阻R2、發光二極體D1、該USB 介面Pa之資料端Dat1－、針式連接器J1之資料端Dat2－、針式連接器J1之接地端GND2再到USB介面Pa之接地端GND1後入地，在此過程中，有電流流過發光二極體D1使得發光二極體D1發光，表示該USB介面元件100工作正常。When the USB interface component 100 is working normally, the current supplied by the power supply Vc is also passed through the power terminal V1 of the USB interface Pa, the power terminal V2 of the pin connector J1, the data terminal Dat2+ of the pin connector J1, and the USB interface Pa. Data terminal Dat1+, resistor R2, LED diode D1, USB The data terminal Dat1- of the interface Pa, the data terminal Dat2- of the pin connector J1, the ground terminal GND2 of the pin connector J1, and the ground terminal GND1 of the USB interface Pa are grounded, and during this process, a current flows. The light-emitting diode D1 causes the light-emitting diode D1 to emit light, indicating that the USB interface element 100 is working properly.

當該USB介面元件100工作異常或USB介面元件100之插頭P1不正確插入該針式連接器J1中時，無電流從該USB介面Pa之資料端Dat1＋流過發光二極體D1到該USB介面Pa之資料端Dat1－，發光二極體D1不發光，表示該USB介面元件100工作出現異常或USB介面元件100之插頭P1插入該針式連接器J1時插反。When the USB interface component 100 operates abnormally or the plug P1 of the USB interface component 100 is improperly inserted into the pin connector J1, no current flows from the data terminal Dat1+ of the USB interface Pa through the LED diode D1 to the USB interface. The data terminal Dat1- of Pa, the light-emitting diode D1 does not emit light, indicating that the USB interface component 100 is abnormally operated or the plug P1 of the USB interface component 100 is inserted into the pin connector J1.

當採用USB插頭404與USB介面P3相連進行測試時，其測試原理與採用USB插頭404與USB介面P2相連進行測試之原理相同。When the USB plug 404 is connected to the USB interface P3 for testing, the principle of testing is the same as that of the USB plug 404 connected to the USB interface P2.

在其他實施方式中，為降低該USB介面元件測試裝置200之製造成本，也可刪除產生防插反作用之二極體Da，也可以同時刪除產生分壓作用之電阻R3及產生指示作用之發光二極體D2。此外，如果USB介面元件100只有一個USB介面P2時，則與針式連接器J1相連之電阻R4和二極體Db也可以同時刪除。In other embodiments, in order to reduce the manufacturing cost of the USB interface component testing device 200, the diodes Da that generate the anti-insertion effect may also be deleted, and the resistor R3 that generates the voltage dividing effect and the LED that generates the indicating effect may be deleted at the same time. Polar body D2. In addition, if the USB interface component 100 has only one USB interface P2, the resistor R4 and the diode Db connected to the pin connector J1 can also be simultaneously deleted.

該USB介面元件測試裝置200透過使用USB轉接線400將USB介面元件測試裝置200之USB介面Pa與USB介面元件100之USB介面P2或P3相連，USB介面元件100之插頭P1插入針式連接器J1中，以對USB介面元件100進行測試，當該USB介面元件100工作正常時， 才有電流流過發光二極體D1，從而指示USB介面元件100是否能夠正常工作。The USB interface component testing device 200 connects the USB interface Pa of the USB interface component testing device 200 to the USB interface P2 or P3 of the USB interface component 100 by using the USB adapter cable 400, and the plug P1 of the USB interface component 100 is inserted into the pin connector. In J1, the USB interface component 100 is tested, when the USB interface component 100 is working properly, Only current flows through the light emitting diode D1, thereby indicating whether the USB interface component 100 can operate normally.

綜上所述，本發明符合發明專利要件，爰依法提出專利申請。惟，以上所述者僅為本發明之較佳實施例，舉凡熟悉本案技藝之人士，在爰依本發明精神所作之等效修飾或變化，皆應涵蓋於以下之申請專利範圍內。In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. The above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art will be included in the following claims.

電阻‧‧‧R1－R4Resistance ‧‧‧R1-R4

二極體‧‧‧Da、DbDiode ‧‧Da, Db

針式連接器‧‧‧J1Pin connector ‧‧‧J1

USB介面‧‧‧PaUSB interface ‧‧‧Pa

發光二極體‧‧‧D1、D2Light-emitting diodes ‧‧D1, D2

箱體‧‧‧202Box ‧ ‧ 202

USB介面元件測試裝置‧‧‧200USB interface component test device ‧‧200

電源開關‧‧‧204Power switch ‧‧‧204

圖1係現有之一種USB介面元件之示意圖。FIG. 1 is a schematic diagram of a conventional USB interface component.

圖2係本發明USB介面元件測試裝置之較佳實施方式之示意圖。2 is a schematic diagram of a preferred embodiment of a USB interface component testing device of the present invention.

圖3係本發明USB介面元件測試裝置之較佳實施方式之電路圖。3 is a circuit diagram of a preferred embodiment of the USB interface component testing device of the present invention.

圖4係本發明USB介面元件測試裝置之較佳實施方式借助一USB轉接線測試圖1中之USB介面元件之示意圖。4 is a schematic diagram of a preferred embodiment of the USB interface component testing device of the present invention for testing the USB interface component of FIG. 1 by means of a USB patch cord.

電阻‧‧‧R1－R4Resistance ‧‧‧R1-R4

二極體‧‧‧Da、DbDiode ‧‧Da, Db

針式連接器‧‧‧J1Pin connector ‧‧‧J1

電源開關‧‧‧204Power switch ‧‧‧204

發光二極體‧‧‧D1、D2Light-emitting diodes ‧‧D1, D2

USB介面‧‧‧PaUSB interface ‧‧‧Pa

Claims (10)

一種USB介面元件測試裝置，包括一USB介面、一連接器、一第一電阻及一第二電阻、一第一指示裝置，該連接器用於與一USB介面元件之一插頭連接，該連接器之第一電源端連接該連接器之第一資料端，還透過該第一電阻連接該連接器之第二資料端及第一接地端，該USB介面之電源端連接一電源，該USB介面之第一資料端透過該第二電阻連接該第一指示裝置之第一端，該第一指示裝置之第二端連接該USB介面之第二資料端，該USB介面之接地端接地。A USB interface component testing device includes a USB interface, a connector, a first resistor and a second resistor, and a first indicating device for connecting to a plug of a USB interface component, the connector The first power terminal is connected to the first data end of the connector, and the second data end of the connector is connected to the first ground end through the first resistor, and the power end of the USB interface is connected to a power source, and the USB interface is A data terminal is connected to the first end of the first indicating device through the second resistor, and the second end of the first indicating device is connected to the second data end of the USB interface, and the ground end of the USB interface is grounded. 如申請專利範圍第1項所述之USB介面元件測試裝置，其還包括一第三電阻及一第二指示裝置，該第三電阻之一端與該電源相連，還與該USB介面之電源端相連，該第三電阻之另一端與該第二指示裝置之第一端相連，該第二指示裝置之第二端接地，還與該USB介面之接地端相連。The USB interface component testing device of claim 1, further comprising a third resistor and a second indicating device, wherein one end of the third resistor is connected to the power source, and is further connected to the power end of the USB interface. The other end of the third resistor is connected to the first end of the second indicating device, the second end of the second indicating device is grounded, and is also connected to the ground end of the USB interface. 如申請專利範圍第2項所述之USB介面元件測試裝置，其中該第三電阻之電阻值為200歐姆，該第二指示裝置為一發光二極體，該第二指示裝置之第一端和第二端分別為該發光二極體之陽極和陰極。The USB interface device testing device of claim 2, wherein the third resistor has a resistance value of 200 ohms, the second indicating device is a light emitting diode, and the first end of the second indicating device is The second ends are the anode and cathode of the light emitting diode, respectively. 如申請專利範圍第1項所述之USB介面元件測試裝置，其還包括一二極體，該二極體之陽極連接該連接器之第一電源端，該二極體之陰極連接該連接器之第一資料端，還透過該第一電阻連接該連接器之第二資料端及第一接地端。The USB interface component testing device of claim 1, further comprising a diode, an anode of the diode is connected to the first power terminal of the connector, and a cathode of the diode is connected to the connector The first data end is further connected to the second data end of the connector and the first ground end through the first resistor. 如申請專利範圍第1項所述之USB介面元件測試裝置，其還包括一二極體，該連接器還包括一第二電源端、一第三資料端、一第四資料端及一第二接地端，該連接器之第二電源端連接該二極體之陽極，該二極體之陰極連接該連接器之第三資料端，還透過另一電阻連接該連接器之第四資料端及第二接地端。The USB interface component testing device of claim 1, further comprising a diode, the connector further comprising a second power terminal, a third data terminal, a fourth data terminal, and a second a grounding end, the second power end of the connector is connected to the anode of the diode, the cathode of the diode is connected to the third data end of the connector, and the fourth data end of the connector is connected through another resistor and Second ground. 如申請專利範圍第5項所述之USB介面元件測試裝置，其中該另一電阻之電阻值為2000歐姆。The USB interface component testing device of claim 5, wherein the other resistor has a resistance value of 2000 ohms. 如申請專利範圍第1項所述之USB介面元件測試裝置，其中該第一指示裝置為一發光二極體，該第一指示裝置之第一端和第二端分別為該發光二極體之陽極和陰極。The USB interface component testing device of claim 1, wherein the first indicating device is a light emitting diode, and the first end and the second end of the first indicating device are respectively the light emitting diode Anode and cathode. 如申請專利範圍第1項所述之USB介面元件測試裝置，其中該第一電阻之電阻值為2000歐姆，該第二電阻之電阻值為200歐姆。The USB interface component testing device of claim 1, wherein the first resistor has a resistance value of 2000 ohms and the second resistor has a resistance value of 200 ohms. 如申請專利範圍第1或第2項所述之USB介面元件測試裝置，其中該電源為5伏特之直流電源。The USB interface component testing device of claim 1 or 2, wherein the power source is a 5 volt DC power source. 如申請專利範圍第1項所述之USB介面元件測試裝置，其中該USB介面之電源端與該電源之間還連接一電源開關。The USB interface component testing device of claim 1, wherein a power switch is further connected between the power terminal of the USB interface and the power source.
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TW200736912A (en) * 2006-03-22 2007-10-01 Quanta Comp Inc System for detecting USB device

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US4326162A (en) * 1980-05-02 1982-04-20 Hankey James H Cable tester with first and second interengaging test modules
US6701401B1 (en) * 2000-07-14 2004-03-02 Inventec Corporation Method for testing a USB port and the device for the same
JP2007115265A (en) * 2001-11-23 2007-05-10 Power Quotient Internatl Co Ltd Low height usb interface connecting device and memory storage apparatus thereof
TW200736912A (en) * 2006-03-22 2007-10-01 Quanta Comp Inc System for detecting USB device

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