CN201134094Y - Testing device of voltage limit - Google Patents
Testing device of voltage limit Download PDFInfo
- Publication number
- CN201134094Y CN201134094Y CNU2007201862627U CN200720186262U CN201134094Y CN 201134094 Y CN201134094 Y CN 201134094Y CN U2007201862627 U CNU2007201862627 U CN U2007201862627U CN 200720186262 U CN200720186262 U CN 200720186262U CN 201134094 Y CN201134094 Y CN 201134094Y
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- resistance
- voltage
- output voltage
- feedback control
- switch
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Abstract
The utility model discloses a voltage margin measuring device, which comprises a power supplier and a variable resistor. The power supplier is provided with a feedback control end; the power supplier is used to provide the output voltage for the mainboard and the hard disc; the power supplier is also used to determine the size of the output voltage according to the voltage of the feedback control end. The variable resistor is provided with an A end of the resistor, a B end of the resistor and an output end of the resistor; the A end of the resistor is in coupled connection with the output voltage; the B end of the resistor is in coupled connection with the common potential and the output end of the resistor is in coupled connection with the feedback control end of the power supplier.
Description
Technical field
The utility model relates to a kind of proving installation, particularly a kind of voltage margin proving installation.
Background technology
Voltage margin (Voltoge Mangin) test is a kind of mode of the performance of testing server (server), this mode is that the environment temperature at server is 0 ℃ and 40 ℃, and under the fully loaded situation of server, change the magnitude of voltage be supplied to its mainboard and test, usually the amplitude of variation of magnitude of voltage can reach ± 5%.
See also Fig. 1, it shows the equipment and the coupling mode thereof of traditional voltage margin test.Illustrated voltage timing sequence test machine (comple power sequence tester) 110, mainboard 120, hard disk 130 and power supply unit 140 in Fig. 1, wherein voltage timing sequence test machine 110 is exactly the required testing apparatus of using when carrying out the test of voltage margin.Voltage timing sequence test machine 110 is responsible for supply voltage (being DC voltage) and is given mainboard 120, and in order to adjust the magnitude of voltage of supply voltage, power supply unit 140 then is to be responsible for providing fixed voltage (also being DC voltage) to give hard disk 130.
Yet, the equipment of doing the test of voltage margin with voltage timing sequence test machine has its shortcoming, mainly contain four, data and the actual magnitude of voltage that exports the mainboard of tested machine to that the output voltage values display screen of first voltage timing sequence test machine is shown have very big drop, degree of accuracy is not good, so must come the output voltage of voltage timing sequence test machine is proofreaied and correct with artificial mode.Its two, voltage timing sequence test machine the start moment, the repercussions that its output voltage produced are too big, cause tested machine to start smoothly often.Its three, when adjusting the output voltage of voltage timing sequence test machine, also often crash because of fluctuation causes tested machine too greatly.Its four, the needed voltage pole limit value of tested machine of special type can't be provided.In addition, voltage timing sequence test machine also have when test, connect more complicated, cumbersome when adjusting output voltage, test connects more time-consuming and influence testing progress, volume and influence putting of other testing apparatus greatly ... etc. shortcoming.
Summary of the invention
The purpose of this utility model provides a kind of voltage margin proving installation, to avoid taking place the problem that tradition is caused during as voltage margin testing apparatus with voltage timing sequence test machine.
The purpose of this utility model provides a kind of voltage margin proving installation, in order to as a kind of simple, handy voltage margin testing apparatus.
The utility model proposes a kind of voltage margin proving installation, it includes power supply unit and variable resistor.This power supply unit has the FEEDBACK CONTROL end, and this power supply unit is in order to providing output voltage to mainboard and hard disk, and according to the voltage swing of the voltage decision output voltage of its FEEDBACK CONTROL end.Variable resistor has resistance first end, resistance second end and resistance and picks out end, and resistance first end couples output voltage, and resistance second end couples common electric potential, and resistance picks out the FEEDBACK CONTROL end that end couples power supply unit.
The utility model proposes a kind of voltage margin proving installation in addition, and it includes power supply unit, first variable resistor and the second adjustable resistance.Power supply unit has the first FEEDBACK CONTROL end and the second FEEDBACK CONTROL end, and this power supply unit is in order to provide first output voltage and second output voltage to mainboard, and provide first output voltage and second output voltage at least one of them to hard disk, and this power supply unit determines the voltage swing of first output voltage and the voltage swing that determines second output voltage according to the voltage of its second FEEDBACK CONTROL end according to the voltage of its first FEEDBACK CONTROL end.First variable resistor has the first resistance first end, the first resistance second end and first resistance and picks out end, and the first resistance first end couples first output voltage, and the first resistance second end couples common electric potential, and first resistance picks out end and couples the first FEEDBACK CONTROL end.The second adjustable resistance has the second resistance first end, the second resistance second end and second resistance and picks out end, and the second resistance first end couples second output voltage, and the second resistance second end couples common electric potential, and second resistance picks out end and couples the second FEEDBACK CONTROL end.
According to the described voltage margin of an embodiment of the present utility model proving installation, it also includes two-way tumbler switch.This two-way tumbler switch includes first switch and second switch again.Whether first switch is coupled to variable-resistance resistance first end with the output voltage of power supply unit in order to decision.Whether second switch is coupled to variable-resistance resistance with the FEEDBACK CONTROL end of power supply unit in order to decision and picks out end, and wherein first switch and second switch are for the while conducting or close simultaneously.
According to the described voltage margin of an embodiment of the present utility model proving installation, it also includes first two-way tumbler switch and second two-way tumbler switch.First two-way tumbler switch includes first switch and second switch again.Whether first switch is coupled to the first resistance first end with first output voltage in order to decision.Whether second switch is coupled to first resistance with the first FEEDBACK CONTROL end in order to decision and picks out end, and wherein first switch and second switch are conducting simultaneously or close simultaneously.Second two-way tumbler switch includes the 3rd switch and the 4th switch again.Whether the 3rd switch is coupled to the second resistance first end with second output voltage in order to decision.Whether the 4th switch is coupled to second resistance with the second FEEDBACK CONTROL end in order to decision and picks out end, and wherein the 3rd switch and the 4th switch are conducting simultaneously or close simultaneously.
The utility model couples common electric potential owing to the output voltage that variable-resistance resistance first end is coupled power supply unit with variable-resistance resistance second end, and variable-resistance resistance is picked out the FEEDBACK CONTROL end that end couples power supply unit.Therefore, adjust variable resistor, just can allow power supply unit change the voltage swing of output voltage according to the change in voltage of its FEEDBACK CONTROL end as long as see through.In addition, the utility model employing two-way tumbler switch of also can arranging in pairs or groups, determine whether the output voltage of power supply unit is coupled to variable-resistance resistance first end with first switch in the two-way tumbler switch, and determine whether that with the second switch in the two-way tumbler switch FEEDBACK CONTROL end with power supply unit is coupled to variable-resistance resistance and picks out end.Therefore, when when carrying out the test of voltage margin, when causing because of output impedance does not match to start smoothly, just can utilize two-way tumbler switch that variable resistor is cut off as if power supply unit, after treating that power supply unit starts, utilize two-way tumbler switch that the variable resistor of adjusting is coupled telegram in reply source supply again.
Description of drawings
Fig. 1 illustrates the equipment and the coupling mode thereof of conventional voltage margin test.
Fig. 2 illustrates a kind of voltage margin proving installation and the coupling mode thereof of the utility model embodiment.
Fig. 3 picks out the synoptic diagram that end 223 is upwards transferred for the resistance of the variable resistor 220 of Fig. 2.
Fig. 4 picks out the synoptic diagram that end 223 is transferred downwards for the resistance of the variable resistor 220 of Fig. 2.
Fig. 5 illustrates the another kind of voltage margin proving installation of the utility model embodiment.
Fig. 6 illustrates another voltage margin proving installation and coupling mode thereof of the utility model embodiment.
Fig. 7 illustrates another voltage margin proving installation and coupling mode thereof of the utility model embodiment.
Fig. 8 illustrates the another kind of again voltage margin proving installation of the utility model embodiment.
Fig. 9 illustrates another voltage margin proving installation again of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, specify the utility model.
See also Fig. 2, it illustrates a kind of voltage margin proving installation and the coupling mode thereof of the utility model embodiment.Voltage margin proving installation includes power supply unit 210 and variable resistor 220.This power supply unit 210 has the FEEDBACK CONTROL end, and this power supply unit 210 is in order to providing output voltage V out to mainboard 230 and hard disk 240, and according to the voltage swing of the voltage Vref decision output voltage V out of its FEEDBACK CONTROL end.Variable resistor 220 has resistance first end 221, resistance second end 222 and resistance and picks out end 223, and resistance first end 221 couples output voltage V out, and resistance second end 222 couples common electric potential GND, and resistance picks out the FEEDBACK CONTROL end that end 223 couples power supply unit 210.
In this example, power supply unit 210 includes power supply circuit 212, impedance 214 and 216.
When being subjected to externalities and changing owing to voltage Vref when above-mentioned FEEDBACK CONTROL end, power supply circuit 212 can be adjusted the size of output voltage V out automatically through the mechanism of output voltage FEEDBACK CONTROL, so that the voltage Vref of FEEDBACK CONTROL end adjusts back original magnitude of voltage, therefore voltage margin proving installation of the present utility model is exactly to utilize such characteristic to operate, and is explained as follows in detail.The resistance that at first makes impedance 214 and 216 is respectively with R
3And R
4Represent that the resistance of variable resistor 220 is then with R
1+ R
2Represent that so by the relation that couples shown in Figure 2 as can be known, the size of output voltage V out can formula (1) represent,
。Suppose R
3And R
4Be all 10K ohm, and R
1+ R
2Be 100K ohm, and the voltage Vref of FEEDBACK CONTROL end is 6V.Resistance when variable resistor 220 picks out end 223 centre positions at variable resistor 220 (as shown in Figure 2), just R so
1And R
2When being all 50K ohm, just can calculating at this moment according to formula (1), output voltage V out be 12V.
See also Fig. 3, its resistance for the variable resistor 220 of Fig. 2 picks out the synoptic diagram that end 223 is upwards transferred.Upwards transfer when the resistance of variable resistor 220 picks out end 223, make R
1And R
2When being respectively 40K ohm and 60K ohm, just can calculate the output voltage V out of this moment according to formula (1) is 11.714V, and significantly, the value of output voltage V out has reduced.See also Fig. 4, its resistance for the variable resistor 220 of Fig. 2 picks out the synoptic diagram that end 223 is transferred downwards.Transfer downwards when the resistance of variable resistor 220 picks out end 223, make R
1And R
2When being respectively 60K ohm and 40K ohm, just can calculate the output voltage V out of this moment according to formula (1) is 12.286V, and significantly, the value of output voltage V out has increased.According to above-mentioned operation as can be known,, just can change the voltage swing of output voltage V out easily, and be easy to just to reach ± 5% change in voltage amplitude as long as see through to adjust variable resistor 220.
Because mainboard needs three kinds of different DC voltage (for example 12V, 5V, 3.3V) usually, hard disk then needs the wherein a kind of of above-mentioned three kinds of voltages at least, right teaching and spirit thereof by the foregoing description, when can be with expanded application of the present invention to power supply unit, as shown in Figure 5 with the output of three voltages.
See also Fig. 5, it illustrates the another kind of voltage margin proving installation of the utility model embodiment.This voltage margin proving installation includes power supply unit 510, and variable resistor 530,540,550.Power supply unit 510 includes power supply circuit 512 again, and impedance 514～524, and these impedances also all realize with resistance.Variable resistor 530 has resistance first end 531, resistance second end 532 and resistance and picks out end 533, and its resistance is with R
5+ R
6Represent.Variable resistor 540 has resistance first end 541, resistance second end 542 and resistance and picks out end 543, and its resistance is with R
7+ R
8 Represent.Variable resistor 550 has resistance first end 551, resistance second end 552 and resistance and picks out end 553, and its resistance is with R
9+ R
10Represent.The relation that couples of above-mentioned these members has represented in figure, just repeats no more at this.More specifically, in this example, power supply circuit 512 can decide the voltage swing of output voltage V out1 according to the voltage Vref1 of its first FEEDBACK CONTROL end, and decide the voltage swing of output voltage V out2 and the voltage swing that decides output voltage V out3 according to the voltage Vref3 of its 3rd FEEDBACK CONTROL end according to the voltage Vref2 of its second FEEDBACK CONTROL end.
In addition, because the voltage margin proving installation of the foregoing description is when restarting, variable resistor adjustment operation that may be when last time testing and make its output impedance excessive or too small, presenting output impedance does not match and can't restart smoothly, cause the user the dead variable resistor of weldering must be unloaded, and readjust variable resistor, adjust to and to allow the output voltage of voltage margin proving installation present predetermined value, voltage margin proving installation just the variable resistor welding of adjusting can be gone back then, in order to avoid can't start smoothly.So, certainly will increase user's trouble, and also delay user's time.In view of the above, below provide other voltage margin proving installation embodiment again, to solve such problem.
See also Fig. 6, it illustrates another voltage margin proving installation and coupling mode thereof of the utility model embodiment.Please consult Fig. 6 and Fig. 2 more simultaneously, can find after comparison, the difference of the two has been more than the device shown in Figure 6 a two-way tumbler switch 610.This two-way tumbler switch 610 includes switch 612 and 614 again, and these two switches are conducting simultaneously or cut out simultaneously.As shown in Figure 6, whether whether switch 612 also provide output voltage V out to mainboard 230 and hard disk 240 in order to decision except the output voltage V out of power supply circuit 212 being coupled to the resistance first end 221 of variable resistor 220 in order to decision.As for switch 614, it picks out end 223 in order to the resistance whether decision is coupled to the FEEDBACK CONTROL end of power supply circuit 212 variable resistor 220.Thus, the user just can cut off power supply unit 210 with variable resistor 220 by two-way tumbler switch 610, and needn't the more dead variable resistor 220 of weldering be unloaded.
See also Fig. 7, it illustrates another voltage margin proving installation and coupling mode thereof of the utility model embodiment.Please consult Fig. 7 and Fig. 2 more simultaneously, can find after comparison, the difference of the two has been more than the device shown in Figure 7 a two-way tumbler switch 710.This two-way tumbler switch 710 includes switch 712 and 714 again, and these two switches also are conducting simultaneously or cut out simultaneously.As shown in Figure 7, whether switch 712 only is coupled to the output voltage V out of power supply circuit 212 the resistance first end 221 of variable resistor 220 in order to decision.As for switch 714, it picks out end 223 in order to the resistance whether decision is coupled to the FEEDBACK CONTROL end of power supply circuit 212 variable resistor 220.Thus, the user also can cut off power supply unit 210 with variable resistor 220 by two-way tumbler switch 710, and needn't the more dead variable resistor 220 of weldering be unloaded.
By the teaching of Fig. 6 and Fig. 7, the user also can do corresponding the modification with the voltage margin proving installation that above-mentioned Fig. 5 illustrated according to these two graphic essence spirits, respectively as Fig. 8 and shown in Figure 9.See also Fig. 8, it illustrates the another kind of again voltage margin proving installation of the utility model embodiment.In Fig. 8, two-way tumbler switch 810,820 and 830 is set up according to the essence spirit of Fig. 6.See also Fig. 9, it illustrates another voltage margin proving installation again of the utility model embodiment.In Fig. 9, two-way tumbler switch 910,920 and 930 is set up according to the essence spirit of Fig. 7.
The utility model couples common electric potential owing to the output voltage that variable-resistance resistance first end is coupled power supply unit with variable-resistance resistance second end, and variable-resistance resistance is picked out the FEEDBACK CONTROL end that end couples power supply unit.Therefore, adjust variable resistor, just can allow power supply unit change the voltage swing of output voltage according to the change in voltage of its FEEDBACK CONTROL end as long as see through.In addition, the utility model employing two-way tumbler switch of also can arranging in pairs or groups, determine whether the output voltage of power supply unit is coupled to variable-resistance resistance first end with first switch in the two-way tumbler switch, and determine whether that with the second switch in the two-way tumbler switch FEEDBACK CONTROL end with power supply unit is coupled to variable-resistance resistance and picks out end.Therefore, when when carrying out the test of voltage margin, when causing because of output impedance does not match to start smoothly, just can utilize two-way tumbler switch that variable resistor is cut off as if power supply unit, after treating that power supply unit starts, utilize two-way tumbler switch that the variable resistor of adjusting is coupled telegram in reply source supply again.
More than disclosed only be several specific embodiment of the present utility model, but the utility model is not limited thereto, any those skilled in the art can think variation, all should drop in the protection domain of the present utility model.
Claims (8)
1, a kind of voltage margin proving installation is characterized in that, comprising:
One power supply unit has a FEEDBACK CONTROL end, and this power supply unit is in order to providing output voltage to a mainboard and a hard disk, and determines the voltage swing of this output voltage according to the voltage of this FEEDBACK CONTROL end; And
One variable resistor has a resistance first end, a resistance second end and a resistance and picks out end, and this resistance first end couples this output voltage, and this resistance second end couples a common electric potential, and this resistance picks out end and couples this FEEDBACK CONTROL end.
2, voltage margin proving installation as claimed in claim 1 is characterized in that this power supply unit comprises:
One power supply circuit has this FEEDBACK CONTROL end, and this power supply circuit is in order to providing this output voltage, and determines the voltage swing of this output voltage according to the voltage of this FEEDBACK CONTROL end;
One first impedance is coupled between this output voltage and this FEEDBACK CONTROL end; And
One second impedance is coupled between this FEEDBACK CONTROL end and this common electric potential.
3, voltage margin proving installation as claimed in claim 1 is characterized in that, also comprises:
One doubly-linked switch comprises:
Whether one first switch is coupled to this resistance first end with this output voltage in order to decision; And
Whether one second switch is coupled to this resistance with this FEEDBACK CONTROL end in order to decision and picks out end, and wherein this first switch and this second switch are conducting simultaneously or close simultaneously.
4, voltage margin proving installation as claimed in claim 3 is characterized in that, whether this first switch also provides this output voltage to this mainboard and this hard disk in order to decision.
5, a kind of voltage margin proving installation is characterized in that, comprising:
One power supply unit, have one first FEEDBACK CONTROL end and one second FEEDBACK CONTROL end, and this power supply unit is in order to provide one first output voltage and one second output voltage to a mainboard, and provide this first output voltage and this second output voltage at least one of them to a hard disk, and this power supply unit determines the voltage swing of this first output voltage and the voltage swing that determines this second output voltage according to the voltage of this second FEEDBACK CONTROL end according to the voltage of this first FEEDBACK CONTROL end;
One first variable resistor, have one first resistance first end, one first resistance second end and one first resistance and pick out end, this first resistance first end couples this first output voltage, and this first resistance second end couples a common electric potential, and this first resistance picks out end and couples this first FEEDBACK CONTROL end; And
One the second adjustable resistance, have one second resistance first end, one second resistance second end and one second resistance and pick out end, this second resistance first end couples this second output voltage, and this second resistance second end couples this common electric potential, and this second resistance picks out end and couples this second FEEDBACK CONTROL end.
6, voltage margin proving installation as claimed in claim 5 is characterized in that this power supply unit comprises:
One power supply circuit, have this first FEEDBACK CONTROL end and this second FEEDBACK CONTROL end, and this power supply circuit determines the voltage swing of this first output voltage and the voltage swing that determines this second output voltage according to the voltage of this second FEEDBACK CONTROL end according to the voltage of this first FEEDBACK CONTROL end;
One first impedance is coupled between this first output voltage and this first FEEDBACK CONTROL end;
One second impedance is coupled between this first FEEDBACK CONTROL end and this common electric potential;
One the 3rd impedance is coupled between this second output voltage and this second FEEDBACK CONTROL end; And
One the 4th impedance is coupled between this second FEEDBACK CONTROL end and this common electric potential.
7, voltage margin proving installation as claimed in claim 5 is characterized in that it more comprises:
One first two-way tumbler switch comprises:
Whether one first switch is coupled to this first resistance first end with this first output voltage in order to decision;
Whether one second switch is coupled to this first resistance with this first FEEDBACK CONTROL end in order to decision and picks out end, and wherein this first switch and this second switch are conducting simultaneously or close simultaneously;
One second two-way tumbler switch comprises:
Whether one the 3rd switch is coupled to this second resistance first end with this second output voltage in order to decision; And
Whether one the 4th switch is coupled to this second resistance with this second FEEDBACK CONTROL end in order to decision and picks out end, and wherein the 3rd switch and the 4th switch are conducting simultaneously or close simultaneously.
8, voltage margin proving installation as claimed in claim 7, it is characterized in that, whether this first switch also provides this first output voltage to this mainboard in order to decision, or whether decision provides this first output voltage to this mainboard and this hard disk, and whether the 3rd switch also provides this second output voltage to this mainboard in order to decision, or whether decision provides this second output voltage to this mainboard and this hard disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201862627U CN201134094Y (en) | 2007-12-28 | 2007-12-28 | Testing device of voltage limit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201862627U CN201134094Y (en) | 2007-12-28 | 2007-12-28 | Testing device of voltage limit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201134094Y true CN201134094Y (en) | 2008-10-15 |
Family
ID=40062361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201862627U Expired - Fee Related CN201134094Y (en) | 2007-12-28 | 2007-12-28 | Testing device of voltage limit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201134094Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221453A (en) * | 2010-04-13 | 2011-10-19 | 英业达股份有限公司 | Testing device and limit switch thereof |
| CN102478871A (en) * | 2010-11-25 | 2012-05-30 | 佛山市顺德区顺达电脑厂有限公司 | Self-powered boundary scanner and boundary scanning method thereof |
| CN104615518A (en) * | 2015-03-04 | 2015-05-13 | 浪潮集团有限公司 | Memory rank margin test method combined with temperature and voltage variables |
-
2007
- 2007-12-28 CN CNU2007201862627U patent/CN201134094Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221453A (en) * | 2010-04-13 | 2011-10-19 | 英业达股份有限公司 | Testing device and limit switch thereof |
| CN102478871A (en) * | 2010-11-25 | 2012-05-30 | 佛山市顺德区顺达电脑厂有限公司 | Self-powered boundary scanner and boundary scanning method thereof |
| CN102478871B (en) * | 2010-11-25 | 2013-12-04 | 佛山市顺德区顺达电脑厂有限公司 | Self-powered boundary scanner and boundary scanning method thereof |
| CN104615518A (en) * | 2015-03-04 | 2015-05-13 | 浪潮集团有限公司 | Memory rank margin test method combined with temperature and voltage variables |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081015 Termination date: 20131228 |