CN204044337U - A kind of SATA interface power measurement jig - Google Patents
A kind of SATA interface power measurement jig Download PDFInfo
- Publication number
- CN204044337U CN204044337U CN201420390839.6U CN201420390839U CN204044337U CN 204044337 U CN204044337 U CN 204044337U CN 201420390839 U CN201420390839 U CN 201420390839U CN 204044337 U CN204044337 U CN 204044337U
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- sata
- over switch
- measurement jig
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Abstract
The utility model relates to a kind of interface testing tool, particularly a kind of SATA interface power measurement jig.Its structure comprises change-over switch, change-over switch connects SATA male joint and SATA female joint respectively, described SATA public access mouth is used for being connected with the SATA interface connector of mainboard outside, SATA female joint is used for being connected with SATA equipment, and described change-over switch is also connected with external power supply connector.A kind of SATA interface power measurement jig of the present utility model, has following characteristics: 1, can test new SATA equipment of introducing and normally to work required voltage scope.2, mainboard verifies SATA interface ripple and noise improving countermeasure under not changing plate situation.3, easy to detect, saving test resource.
Description
Technical field
The utility model relates to a kind of interface testing tool, particularly a kind of SATA interface power measurement jig.
Background technology
Under the background of current information development, the demand of development to memory device of computing machine is more and more higher, and the memory device of SATA interface shape to be computing machine indispensable, be also the equipment of main flow the most at present.In the research and development and after-sales service of computer product, breaking down in the work of SATA equipment is a more common problem, and the problem that fault is now not many times SATA equipment itself caused.In the design, the Design of Compatibility between computing machine and SATA equipment needs to show great attention to, and this just needs us to understand SATA equipment clearly normally to work required condition, also need to understand the quality that computing machine is supplied to the power supply of SATA interface.The quality that computing machine is supplied to the power supply of SATA interface must meet SATA equipment and normally to work required condition.
Summary of the invention
In order to solve the problem of prior art, the utility model provides a kind of SATA interface power measurement jig, it can be used for detecting SATA equipment and normally to work the highest of required supply voltage and minimum border, also can be used for the test to computing machine SATA interface power ripple and noise objective and tuning.
The technical scheme that the utility model adopts is as follows:
A kind of SATA interface power measurement jig, comprise change-over switch, change-over switch connects SATA male joint and SATA female joint respectively, described SATA public access mouth is used for being connected with the SATA interface connector of mainboard outside, SATA female joint is used for being connected with SATA equipment, and described change-over switch is also connected with external power supply connector.
Power lead between change-over switch and SATA female joint is provided with electric capacity pad.
Change-over switch adopts 60 ohm of high-power resistances (12V, 5V, 3.3V, each electric power network uses 2), is supplied to the power source of SATA equipment by the way selection plugging short circuit cap.
Connector be placed in reality test SATA equipment (as SATA hard disc) and the mainboard be connected needed for it go out in the middle of SATA interface connector, SATA public access mouth is used for being connected with the SATA interface connector that mainboard is gone out, and SATA female joint is used for being connected with SATA equipment (as SATA hard disc).Select the device of powering to SATA equipment for one during change-over switch, can be switched flexibly between external power supply, mainboard or system power supply again by it.
The various piece of measurement jig should be noted that a little as follows:
SATA signal wire: in test fixture manufacturing process, SATA signal link must ensure complete reference stratum, impedance matching meets SATA code requirement, walk in line process to have via hole, cabling and electric power network to keep the most enough distances at utmost to reduce external interference to the greatest extent.
Power supply cabling: the paving copper of the electric power network (12V, 5V, 3.3V) on measurement jig requires as far as possible wide, best multi-compartment bed copper when conditions permit, to reduce the pressure drop on electric power network copper sheet as far as possible.
The beneficial effect that the technical scheme that the utility model provides is brought is:
Measurement jig of the present utility model is when reality uses, be arranged between mainboard SATA interface and SATA equipment, select from regulated power supply input by change-over switch, the magnitude of voltage that adjustment regulated power supply exports finds out the voltage range up-and-down boundary that SATA equipment can be made to maintain normal work step by step.Select from mainboard or system power supply input by change-over switch, ripple and noise figure can be tested on measurement jig when SATA equipment normally works, and by the mode of measurement jig welding capacitor, reach the object of the plan-validation that ripple and noise figure improve.
Compared with prior art, a kind of SATA interface power measurement jig of the present utility model, has following characteristics:
1, new SATA equipment of introducing can be tested normally to work required voltage scope.
2, mainboard verifies SATA interface ripple and noise improving countermeasure under not changing plate situation.
3, easy to detect, saving test resource.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structured flowchart of a kind of SATA interface power measurement jig of the present utility model.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
Embodiment one
As shown in Figure 1, a kind of SATA interface power measurement jig, comprise change-over switch, change-over switch connects SATA male joint and SATA female joint respectively, described SATA public access mouth is used for being connected with the SATA interface connector of mainboard outside, SATA female joint is used for being connected with SATA equipment, and described change-over switch is also connected with external power supply connector.
The operation instruction of the measurement jig of the present embodiment:
1, time test voltage is drawn inclined, change-over switch selects power supply by external power source, has adjustable voltage out-put supply to power, and adjustment power supply is nominal mains down-1% ,-2%, reduce voltage according to the step value of 1% successively, observe magnitude of voltage when SATA equipment goes wrong.Again adjust voltage to than nominal voltage, successively according to 1% step value boosted voltage, observe magnitude of voltage when SATA equipment goes wrong (now note the voltage mxm. that SATA equipment can bear, may not exceed to such an extent as to burn out SATA equipment).May use in the product of above-mentioned SATA equipment follow-up, the voltage accuracy of SATA interface must meet between the upper lower limit value of voltage high low bias test.
2, when whether analysis ripple and too noisy are the reasons causing SATA equipment to break down.
2.1, change-over switch selects power supply to be powered by mainboard or system power supply.
2.2, the SATA equipment interface place test ripple first on fixture and noise figure, being designated as RN1(has 3 power supplys 12V, 5V, 3.3V).
2.3, the reserved capacitor pad on fixture welds electric capacity, again tests ripple and noise figure, be designated as RN2.
2.4, the words that RN2 is better than RN1, observe SATA equipment can noly also break down, illustrate if do not broken down and improve effectively, ripple and noise excessive be the reason causing SATA equipment to break down, the capacitor combination be now welded on measurement jig namely can with reference to solution.
If 2.5 RN2 are good unlike RN1, change capacitor combination, continues test, until meet RN2<RN1, and then repeats the operation in step C.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. a SATA interface power measurement jig, comprise change-over switch, it is characterized in that, described change-over switch connects SATA male joint and SATA female joint respectively, described SATA public access mouth is used for being connected with the SATA interface connector of mainboard outside, SATA female joint is used for being connected with SATA equipment, and described change-over switch is also connected with external power supply connector.
2. a kind of SATA interface power measurement jig according to claim 1, it is characterized in that, described change-over switch is made up of the high-power resistance of 60 ohm, and it is supplied to the power source of SATA equipment by the way selection plugging short circuit cap.
3. a kind of SATA interface power measurement jig according to claim 1, is characterized in that, the power lead between described change-over switch and SATA female joint is provided with electric capacity pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420390839.6U CN204044337U (en) | 2014-07-15 | 2014-07-15 | A kind of SATA interface power measurement jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420390839.6U CN204044337U (en) | 2014-07-15 | 2014-07-15 | A kind of SATA interface power measurement jig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204044337U true CN204044337U (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420390839.6U Expired - Fee Related CN204044337U (en) | 2014-07-15 | 2014-07-15 | A kind of SATA interface power measurement jig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204044337U (en) |
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2014
- 2014-07-15 CN CN201420390839.6U patent/CN204044337U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 Termination date: 20150715 |
|
| EXPY | Termination of patent right or utility model |