CN220894887U - USB test circuit and test system - Google Patents
USB test circuit and test system Download PDFInfo
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- CN220894887U CN220894887U CN202322509937.9U CN202322509937U CN220894887U CN 220894887 U CN220894887 U CN 220894887U CN 202322509937 U CN202322509937 U CN 202322509937U CN 220894887 U CN220894887 U CN 220894887U
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Abstract
The utility model discloses a USB test circuit and a test system, wherein the USB test circuit comprises at least one switching module; the switching module comprises at least one first channel and at least one second channel, wherein the input ends of the first channel and the second channel are connected with the testing equipment, and the output ends of the first channel and the second channel are connected with the equipment to be tested. The utility model can identify the interface type of the equipment to be tested at one time, and improves the test efficiency.
Description
Technical Field
The present utility model relates to the field of USB technologies, and in particular, to a USB test circuit and a test system.
Background
The USB specification 3.0 is abbreviated as USB3.1 Gen1, which is one of USB specifications, and the USB specification generally has a feature of downward compatibility, so that USB3.0 can be generally compatible with USB2.0. When the electronic equipment is classified according to the interface types, the electronic equipment can be divided into USB2.0 equipment and USB3.0 equipment, the USB2.0 equipment only supports the USB2.0 interface for communication, and the USB3.0 equipment can simultaneously support the USB2.0 interface and the USB3.0 interface for communication. At present, when classifying electronic devices, it is usually tested whether the electronic devices support the USB2.0 interface, and then whether the electronic devices support the USB3.0 interface, and the two tests need to be separately performed, so that the testing process is relatively troublesome, and the testing efficiency is reduced.
Disclosure of utility model
The utility model provides a USB test circuit and a test system, which aim to solve the problem of lower test efficiency when an interface of electronic equipment is tested.
In a first aspect, the present utility model provides a USB test circuit comprising at least one switching module; the switching module comprises at least one first channel and at least one second channel, wherein the input ends of the first channel and the second channel are connected with the testing equipment, and the output ends of the first channel and the second channel are connected with the equipment to be tested.
Further, the first channel includes a first signal pin and a second signal pin, an input end of the first signal pin and an input end of the second signal pin are both connected with the test device, and an output end of the first signal pin and an output end of the second signal pin are both connected with the device to be tested.
Further, the second channel includes a third signal pin, a fourth signal pin, a fifth signal pin, and a sixth signal pin; the input end of the third signal pin, the input end of the fourth signal pin, the input end of the fifth signal pin and the input end of the sixth signal pin are all connected with the test equipment, and the output end of the third signal pin, the output end of the fourth signal pin, the output end of the fifth signal pin and the output end of the sixth signal pin are all connected with the equipment to be tested.
Further, the system also comprises a reminding module, wherein the reminding module is connected with the first channel and the second channel respectively.
Further, the reminding module comprises a first LED circuit and a second LED circuit, wherein the first LED circuit is connected with the first channel, and the second LED circuit is connected with the second channel.
Further, the switching module includes two first channels and two second channels, and an input end of each first channel and an input end of each second channel are connected with the test device, and an output end of each first channel and an output end of each second channel are connected with the device to be tested.
Further, two of the switching modules are included, each of the switching modules including at least one of the first channels and at least one of the second channels.
Further, the switching module is a dial switch.
Further, the first channel is a USB2.0 channel, and the second channel is a USB3.0 channel.
In a second aspect, the present utility model also provides a USB test system, including a test device and a USB test circuit as described in any one of the above; one end of the USB test circuit is connected with the test equipment, and the other end of the USB test circuit is connected with the equipment to be tested.
According to the USB test circuit and the test system, the test equipment is connected with the equipment to be tested through the first channel and the second channel of the switching module, and when the test is performed, the test equipment is connected with the equipment to be tested through the first channel, whether the equipment to be tested supports an interface corresponding to the first channel or not is tested, and then is connected with the equipment to be tested through the second channel, whether the equipment to be tested supports the interface corresponding to the second channel or not is tested, so that the interface type of the equipment to be tested can be tested at one time, and the test efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of a USB test circuit according to a first embodiment of the present utility model;
FIG. 2 is a block diagram of a USB test circuit according to a second embodiment of the present utility model;
FIG. 3 is a block diagram of a USB test circuit according to a third embodiment of the present utility model; and
Fig. 4 is a block diagram of a USB test circuit according to a fourth embodiment of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be understood that the terms "comprises" and "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
Referring to fig. 1 to 4, fig. 1 is a block schematic diagram of a USB test circuit 100 according to a first embodiment of the present utility model; FIG. 2 is a block diagram of a USB test circuit 100 according to a second embodiment of the present utility model; FIG. 3 is a block diagram of a USB test circuit 100 according to a third embodiment of the present utility model;
Fig. 4 is a block diagram of a USB test circuit 100 according to a fourth embodiment of the present utility model. As shown in fig. 1, the USB test circuit 100 provided by the present utility model includes at least one switching module 10; the switching module 10 includes at least one first channel 11 and at least one second channel 12, input ends of the first channel 11 and the second channel 12 are connected to the test device 200, and output ends of the first channel 11 and the second channel 12 are connected to the device 300 under test.
Specifically, the test device 200 may be a test device 200 having a USB3.0 interface for transmitting data, and the switching module 10 may include a first channel 11 and a second channel 12, wherein input ends of the first channel 11 and the second channel 12 are connected to the test device 200, and output ends of the first channel 11 and the second channel 12 are connected to the device 300 under test. The first channel 11 is used for transmitting USB2.0 signals and the second channel 12 is used for transmitting USB3.0 signals. The device 300 under test may be an electronic device having a USB3.0 interface or having a USB3.0 interface. When testing, the switching module 10 is connected with the testing device 200 and the device 300 to be tested respectively, then the first channel 11 is communicated with the device 300 to be tested to judge whether the USB2.0 signal can be normally transmitted, and after judging, the second channel 12 is communicated with the device 300 to be tested to judge whether the USB3.0 signal can be normally transmitted. If both the USB2.0 signal and the USB3.0 signal can be transmitted, it indicates that the device 300 to be tested is a USB3.0 device, and can support both the USB2.0 interface and the USB3.0 interface, and if only the USB2.0 signal can be transmitted, it indicates that the device 300 to be tested supports only the USB2.0 interface. When judging whether the signal can be normally transmitted, the device 300 to be tested can judge whether the signal is normally transmitted or not by judging whether the device to be tested receives data or not, and a corresponding module can be set to remind whether the signal is normally transmitted or not.
Referring to fig. 2, as a further embodiment, the first channel 11 includes a first signal pin HS-DP and a second signal pin HS-DM, wherein an input end of the first signal pin HS-DP and an input end of the second signal pin HS-DM are connected to the test device 200, and an output end of the first signal pin HS-DP and an output end of the second signal pin HS-DM are connected to the device under test 300.
The first signal pin HS-DP1 and the second signal pin HS-DM are used for transmitting a USB2.0 signal, and when the USB2.0 signal can be normally transmitted from the device under test 300 to the test device 200, it indicates that the device under test 300 is at least a USB2.0 device.
As a further example, the second channel 12 includes a third signal pin SS-TXDP, a fourth signal pin SS-TXDM1, a fifth signal pin SS-TXDP2, and a sixth signal pin SS-TXDM; the input end of the third signal pin SS-TXDP, the input end of the fourth signal pin SS-TXDM, the input end of the fifth signal pin SS-TXDP2 and the input end of the sixth signal pin SS-TXDM are all connected to the test device 200, and the output end of the third signal pin SS-TXDP, the output end of the fourth signal pin SS-TXDM1, the output end of the fifth signal pin SS-TXDP2 and the output end of the sixth signal pin SS-TXDM are all connected to the device under test 300.
The third signal pin SS-TXDP, the fourth signal pin SS-TXDM1, the fifth signal pin SS-TXDP2 and the sixth signal pin SS-TXDM2 are used for transmitting USB3.0 signals. When the first channel 11 is in communication with the device under test 300, it is used to test whether the device under test 300 supports transmission of USB2.0 signals, and at this time, the third signal pin SS-TXDP, the fourth signal pin SS-TXDM1, the fifth signal pin SS-TXDP2, and the sixth signal pin SS-TXDM2 are not in communication with the device under test 300. When the second channel 12 is communicated with the device 300 under test, the third signal pin SS-TXDP, the fourth signal pin SS-TXDM1, the fifth signal pin SS-TXDP2 and the sixth signal pin SS-TXDM are communicated with the device 300 under test for testing whether the device 300 under test supports transmission of USB3.0 signals, and at this time, neither the first signal pin HS-DP nor the second signal pin HS-DM is communicated with the device 300 under test.
Referring to fig. 3, as a further embodiment, a reminder module 20 is further included, where the reminder module 20 is connected to the first channel 11 and the second channel 12, respectively.
The reminding module 20 is used for reminding whether the corresponding channel can normally transmit signals. The reminding module 20 can remind through sound or through light. Preferably, the reminding can be carried out by light. When the first channel 11 can normally transmit signals, the light corresponding to the first channel 11 emits light, and when the second channel 12 can normally transmit signals, the light corresponding to the second channel 12 emits light.
Referring to fig. 4, as a further embodiment, the alert module 20 includes a first LED circuit 21 and a second LED circuit 22, the first LED circuit 21 being connected to the first channel 11, and the second LED circuit 22 being connected to the second channel 12.
Wherein the first LED circuit 21 may comprise a red LED lamp, the second LED circuit 22 may comprise a green LED lamp, the red lamp is turned on when the first channel 11 may transmit a signal, and the green lamp is turned on when the second channel 12 may transmit a signal. After the test is finished, if the red light and the green light are both on, the device 300 to be tested is indicated to be the USB3.0 device, and if only the red light is on, the device 300 to be tested is indicated to be the USB2.0 device.
As a further embodiment, the switching module 10 includes two first channels 11 and two second channels 12, where an input end of each first channel 11 and an input end of each second channel 12 are connected to the test device 200, and an output end of each first channel 11 and an output end of each second channel 12 are connected to the device under test 300.
The switching module 10 includes two first channels 11 and two second channels 12, where one first channel 11 and one second channel 12 are connected as a group to one device under test 300, and the two first channels 11 and the two second channels 12 can test the two devices under test 300 at the same time.
As a further embodiment, two of said switching modules 10 are included, each of said switching modules 10 comprising at least one of said first channels 11 and at least one of said second channels 12.
Wherein, two switching modules 10 may be included, one switching module 10 is connected to at least one device 300 under test, and if the switching module 10 includes a plurality of first channels 11 and a plurality of second channels 12, one switching module 10 may be connected to a plurality of devices 300 under test, so that the plurality of devices 300 under test may be tested.
As a further embodiment, the switching module 10 is a dial switch.
When the switching module 10 is a dial switch, the first channel 11 or the second channel 12 may be gated by the dial switch, so that the device 300 to be tested may be tested in sequence.
The utility model also discloses a USB test system, which comprises test equipment 200 and the USB test circuit 100 according to any one of the above embodiments; the USB test circuit 100 includes at least one switching module 10; the switching module 10 includes at least one first channel 11 and at least one second channel 12, input ends of the first channel 11 and the second channel 12 are both connected with the test device 200, and output ends of the first channel 11 and the second channel 12 are both connected with the device 300 under test.
The test device 200 may be an electronic device with a USB3.0 interface, for example, a computer, and the device 300 under test may be an electronic device with a USB2.0 interface or an electronic device with a USB3.0 interface, where the device 300 under test is connected to the test device 200 through the USB test circuit 100, so that on one hand, the type of interface supported by the device 300 under test may be tested, and on the other hand, whether the interface function of the test device 200 is complete may also be detected.
The switching module comprises the first channel and the second channel, the first channel and the second channel are respectively connected with the testing equipment and the equipment to be tested, and the transmission of the USB2.0 signal and the USB3.0 signal can be tested by switching the communication state of the first channel and the second channel, so that the type of the equipment to be tested is tested, and the testing efficiency is improved.
While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (10)
1. A USB test circuit, for use in a USB test system, comprising: the switching module comprises at least one first channel and at least one second channel, the input ends of the first channel and the second channel are connected with the testing equipment, and the output ends of the first channel and the second channel are connected with the equipment to be tested.
2. The USB test circuit of claim 1, wherein the first channel includes a first signal pin and a second signal pin, an input of the first signal pin and an input of the second signal pin are both connected to the test device, and an output of the first signal pin and an output of the second signal pin are both connected to the device under test.
3. The USB test circuit of claim 2, wherein the second channel includes a third signal pin, a fourth signal pin, a fifth signal pin, and a sixth signal pin;
the input end of the third signal pin, the input end of the fourth signal pin, the input end of the fifth signal pin and the input end of the sixth signal pin are all connected with the test equipment, and the output end of the third signal pin, the output end of the fourth signal pin, the output end of the fifth signal pin and the output end of the sixth signal pin are all connected with the equipment to be tested.
4. The USB test circuit of claim 1, further comprising a reminder module, the reminder module being connected to the first channel and the second channel, respectively.
5. The USB test circuit of claim 4, wherein the alert module includes a first LED circuit and a second LED circuit, the first LED circuit being connected to the first channel and the second LED circuit being connected to the second channel.
6. The USB test circuit of claim 1, wherein the switching module includes two of the first channels and two of the second channels, an input of each of the first channels and an input of each of the second channels being coupled to the test device, and an output of each of the first channels and an output of each of the second channels being coupled to the device under test.
7. The USB test circuit of claim 1, comprising two of the switching modules, each of the switching modules including at least one of the first channel and at least one of the second channels.
8. The USB test circuit of claim 1, wherein the switching module is a dial switch.
9. The USB test circuit of claim 1, wherein the first channel is a USB2.0 channel and the second channel is a USB3.0 channel.
10. A USB test system comprising a test device and a USB test circuit as claimed in any one of claims 1 to 9;
One end of the USB test circuit is connected with the test equipment, and the other end of the USB test circuit is connected with the equipment to be tested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322509937.9U CN220894887U (en) | 2023-09-15 | 2023-09-15 | USB test circuit and test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322509937.9U CN220894887U (en) | 2023-09-15 | 2023-09-15 | USB test circuit and test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220894887U true CN220894887U (en) | 2024-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322509937.9U Active CN220894887U (en) | 2023-09-15 | 2023-09-15 | USB test circuit and test system |
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| Country | Link |
|---|---|
| CN (1) | CN220894887U (en) |
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2023
- 2023-09-15 CN CN202322509937.9U patent/CN220894887U/en active Active
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