CN208094551U - The isolation circuit of Auto-Test System - Google Patents
The isolation circuit of Auto-Test System Download PDFInfo
- Publication number
- CN208094551U CN208094551U CN201820609933.4U CN201820609933U CN208094551U CN 208094551 U CN208094551 U CN 208094551U CN 201820609933 U CN201820609933 U CN 201820609933U CN 208094551 U CN208094551 U CN 208094551U
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- China
- Prior art keywords
- optical fiber
- auto
- test system
- card
- isolation circuit
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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.)
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Abstract
The utility model provides a kind of isolation circuit of Auto-Test System, and the isolation circuit of the Auto-Test System includes transmission sonet card, reception optical fiber card and optical fiber, wherein：The transmission sonet card is mounted on control host, and the reception optical fiber card is mounted in Auto-Test System, and optical fiber is connected between the transmission sonet card and the reception optical fiber card；The transmission sonet card sends optical signal by the optical fiber to the reception optical fiber card.
Description
Technical field
The utility model is related to chip testing technology field, more particularly to a kind of isolation circuit of Auto-Test System.
Background technology
Between common chip Auto-Test System and control host all in such a way that electric signal is directly connected to, no matter adopt
All it is difficult to accomplish good anti-interference ability and longer-distance transmission with any level agreement, while this direct electrical connection
Mode also can largely introduce control host interference, so usually control the distance between host and test system cannot be very
Long, transmission rate can not quickly, and no it will cause the mistakes of data transmission.But Auto-Test System is usually applied to large size
Testing factory is limited by factory's physical condition, can not ensure that controlling host and Auto-Test System is in close position.
Utility model content
The purpose of this utility model is to provide a kind of isolation circuits of Auto-Test System, to solve existing automatic survey
The problem that signal transmission distance is small and transmission rate is slow between test system and control host.
In order to solve the above technical problems, the utility model provides a kind of isolation circuit of Auto-Test System, it is described automatic
The isolation circuit of test system includes transmission sonet card, reception optical fiber card and optical fiber, wherein：
The transmission sonet card is mounted on control host, and the reception optical fiber card is mounted in Auto-Test System, light
Fibre is connected between the transmission sonet card and the reception optical fiber card；
The transmission sonet card sends optical signal by the optical fiber to the reception optical fiber card.
Optionally, in the isolation circuit of the Auto-Test System, the quantity of the optical fiber is 4.
Optionally, in the isolation circuit of the Auto-Test System, the every optical fiber transmits the optical signal
Speed is 5 gigabyte per second.
Optionally, in the isolation circuit of the Auto-Test System, the length of the optical fiber be 10 meters~100 meters it
Between.
Optionally, in the isolation circuit of the Auto-Test System, the Auto-Test System further includes control panel,
The optical signal is converted to electric signal by the reception optical fiber card, and is transferred to the control panel.
In the isolation circuit of Auto-Test System provided by the utility model, send sonet card by optical fiber to receive light
Fibre card sends optical signal, and the principle of optical fiber transmission is using the flicker of laser come transmission data, because the frequency that light is cut-off is much
Switching frequency more than electric signal in copper cable is generally managed so the speed of optical fiber transmission is far longer than the transmission speed of electric signal
By the communication that Tbit/ seconds grades above may be implemented, solves Auto-Test System and to control signal transmission rate between host slow
Problem.
Auto-Test System in the utility model further includes control panel, and wherein control panel is the practical function of receiving data
Plate, the prior art are that control panel is directly connected by versabus with control host, such as PCI, USB etc., but this mode
It is easily introduced interference, and since such bus cannot transmit very long distance, and leads to Auto-Test System distance controlling
Host cannot be apart from too far, and tests factory and usually require that Auto-Test System distance controlling host has a certain distance.It sends
Sonet card and reception optical fiber card are used for Auto-Test System and control the isolation between host, and optical signal is transmitted in optical fiber, and
The transmission loss of optical signal in a fiber is minimum, so usually can solve Auto-Test System and control with long distance transmission
The small problem of signal transmission distance between host.
Further, since the conflicting mode of control host is by electromagnetic transmission to Auto-Test System, if passing through light
Fine mode has also completely cut off the possibility of electromagnetic propagation interference.
The isolation circuit of the Auto-Test System of the utility model is using 4 optical fiber connection control hosts, wherein every light
Fine transmittability is 5Gbps, 20Gbps total in this way.Practical highest can make control host and Auto-Test System spacing number
Ten meters or more still can be with normal transmission data.Greatly strengthen the live adaptability of Auto-Test System.
Description of the drawings
Fig. 1 is the isolation circuit schematic diagram of the Auto-Test System in one embodiment of the utility model；
As shown in the figure：10- controls host；20- Auto-Test Systems；21- control panels；31- sends sonet card；32- is received
Sonet card；33- optical fiber.
Specific implementation mode
Below in conjunction with the drawings and specific embodiments to the utility model proposes Auto-Test System isolation circuit make into
One step is described in detail.According to following explanation and claims, will be become apparent from feature the advantages of the utility model.It should be noted
That attached drawing is all made of very simplified form and uses non-accurate ratio, only to it is convenient, lucidly aid in illustrating this reality
With the purpose of new embodiment.
The core concept of the utility model is to provide a kind of isolation circuit of Auto-Test System, with solve it is existing from
The problem that signal transmission distance is small and transmission rate is slow between dynamic test system and control host.
To realize that above-mentioned thought, the utility model provide a kind of isolation circuit of Auto-Test System, the automatic survey
The isolation circuit of test system includes transmission sonet card, reception optical fiber card and optical fiber, wherein：The transmission sonet card is mounted on control
On host, the reception optical fiber card is mounted in Auto-Test System, and optical fiber is connected to the transmission sonet card and the reception
Between sonet card；The transmission sonet card sends optical signal by the optical fiber to the reception optical fiber card.
The utility model provides a kind of isolation circuit of Auto-Test System 20, as described in Figure 1, the Auto-Test System
20 isolation circuit includes transmission sonet card 31, reception optical fiber card 32 and optical fiber 33, wherein：The transmission sonet card 31 is mounted on
It controls on host 10, the reception optical fiber card 32 is mounted in Auto-Test System 20, and optical fiber 33 is connected to the transmission optical fiber
Between card 31 and the reception optical fiber card 32；The transmission sonet card 31 is sent out by the optical fiber 33 to the reception optical fiber card 32
Send optical signal.
Specifically, in the isolation circuit of the Auto-Test System 20, the quantity of the optical fiber 33 is 4, every
The speed that the optical fiber 33 transmits the optical signal is 5 gigabyte per second, the length of the optical fiber 33 be 10 meters~100 meters it
Between, the Auto-Test System 20 further includes control panel 21, and the optical signal is converted to electric signal by the reception optical fiber card 32,
And it is transferred to the control panel 21.
In the isolation circuit of Auto-Test System 20 provided by the utility model, send sonet card 31 by optical fiber 33 to
Reception optical fiber card 32 sends optical signal, and the principle of optical fiber transmission is using the flicker of laser come transmission data, because what light was cut-off
Frequency be far longer than electric signal copper cable switching frequency, so optical fiber transmission speed be far longer than electric signal transmission speed
It spends, the communication of Tbit/ seconds grades may be implemented in general theory, solve signal between Auto-Test System 20 and control host 10
The slow problem of transmission rate.
Auto-Test System 20 in the utility model further includes control panel 21, and wherein control panel 21 is practical reception data
Feature board, the prior art is that control panel 21 is directly connected by versabus with control host 10, such as PCI, USB etc.,
But this mode is easily introduced interference, and since such bus cannot transmit very long distance, and causes to test system automatically
Uniting 20 distance controlling hosts 10 cannot be apart from too far, and tests factory and usually require that 20 distance controlling host 10 of Auto-Test System
There is a certain distance.It sends sonet card 31 and reception optical fiber card 32 is used between Auto-Test System 20 and control host 10
Isolation, optical fiber 33 is interior to transmit optical signal, and transmission loss of the optical signal in optical fiber 33 is minimum, so can usually pass over long distances
It is defeated, solve the problems, such as that signal transmission distance is small between Auto-Test System 20 and control host 10.
Further, since the conflicting mode of control host 10 is by electromagnetic transmission to Auto-Test System 20, if logical
The mode of optical fiber is crossed, the possibility of electromagnetic propagation interference has also been completely cut off.
The isolation circuit of the Auto-Test System 20 of the utility model controls hosts 10 using 4 connections of optical fiber 33, wherein
The transmittability of every optical fiber 33 is 5Gbps, 20Gbps total in this way.Practical highest can make control host 10 and automatic test
It more than the tens of rice of 20 spacing of system still can be with normal transmission data.The scene for greatly strengthening Auto-Test System 20 adapts to energy
Power.
To sum up, the various configuration of the isolation circuit of Auto-Test System is described in detail in above-described embodiment, certainly,
The utility model includes but is not limited to configuration cited in above-mentioned implementation, any configuration basis provided in above-described embodiment
On the content that is converted, belong to the range that the utility model is protected.Those skilled in the art can be according to above-mentioned implementation
The content of example is drawn inferences about other cases from one instance.
Foregoing description is only the description to the utility model preferred embodiment, not to any limit of the scope of the utility model
Calmly, any change, the modification that the those of ordinary skill in the utility model field does according to the disclosure above content, belong to right and want
Seek the protection domain of book.
Claims (5)
1. a kind of isolation circuit of Auto-Test System, which is characterized in that the isolation circuit of the Auto-Test System includes hair
Sonet card, reception optical fiber card and optical fiber are sent, wherein：
The transmission sonet card is mounted on control host, and the reception optical fiber card is mounted in Auto-Test System, and optical fiber connects
It is connected between the transmission sonet card and the reception optical fiber card；
The transmission sonet card sends optical signal by the optical fiber to the reception optical fiber card.
2. the isolation circuit of Auto-Test System as described in claim 1, which is characterized in that the quantity of the optical fiber is 4.
3. the isolation circuit of Auto-Test System as described in claim 1, which is characterized in that described in the every optical fiber transmission
The speed of optical signal is 5 gigabyte per second.
4. the isolation circuit of Auto-Test System as described in claim 1, which is characterized in that the length of the optical fiber is 10 meters
Between~100 meters.
5. the isolation circuit of Auto-Test System as described in claim 1, which is characterized in that the Auto-Test System is also wrapped
Control panel is included, the optical signal is converted to electric signal by the reception optical fiber card, and is transferred to the control panel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820609933.4U CN208094551U (en) | 2018-04-26 | 2018-04-26 | The isolation circuit of Auto-Test System |
| TW107206604U TWM569069U (en) | 2018-04-26 | 2018-05-21 | Isolation circuit of automatic test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820609933.4U CN208094551U (en) | 2018-04-26 | 2018-04-26 | The isolation circuit of Auto-Test System |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208094551U true CN208094551U (en) | 2018-11-13 |
Family
ID=64051947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820609933.4U Active CN208094551U (en) | 2018-04-26 | 2018-04-26 | The isolation circuit of Auto-Test System |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN208094551U (en) |
| TW (1) | TWM569069U (en) |
-
2018
- 2018-04-26 CN CN201820609933.4U patent/CN208094551U/en active Active
- 2018-05-21 TW TW107206604U patent/TWM569069U/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| TWM569069U (en) | 2018-10-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201120 Address after: Floor 1, building 1, No. 1130, qinghewan Road, Qingpu District, Shanghai 201700 Patentee after: Sundec semiconductor technology (Shanghai) Co.,Ltd. Address before: Box 2804, 4th floor, ky1-1112scotia centre, Georgetown, Cayman Islands Patentee before: Shengte Co.,Ltd. Patentee before: SANDTEK TECHNOLOGIES (SHANGHAI) Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201700 1st floor, building 1, 1130 qinghewan Road, Qingpu District, Shanghai Patentee after: Sundak Semiconductor Technology (Shanghai) Co.,Ltd. Address before: 201700 1st floor, building 1, 1130 qinghewan Road, Qingpu District, Shanghai Patentee before: Sundec semiconductor technology (Shanghai) Co.,Ltd. |