CN105244126A - Design method of precision resistor - Google Patents
Design method of precision resistor Download PDFInfo
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- CN105244126A CN105244126A CN201510606337.1A CN201510606337A CN105244126A CN 105244126 A CN105244126 A CN 105244126A CN 201510606337 A CN201510606337 A CN 201510606337A CN 105244126 A CN105244126 A CN 105244126A
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- precision resistance
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- resistance
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000013461 design Methods 0.000 title abstract description 10
- 238000003466 welding Methods 0.000 claims abstract description 16
- 238000005259 measurement Methods 0.000 claims abstract description 8
- 229910000679 solder Inorganic materials 0.000 claims description 24
- 230000000694 effects Effects 0.000 claims description 8
- 238000012938 design process Methods 0.000 claims description 2
- 230000003071 parasitic effect Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 10
- 101150087393 PIN3 gene Proteins 0.000 description 6
- 108010037490 Peptidyl-Prolyl Cis-Trans Isomerase NIMA-Interacting 4 Proteins 0.000 description 6
- 102100031653 Peptidyl-prolyl cis-trans isomerase NIMA-interacting 4 Human genes 0.000 description 6
- 108010059419 NIMA-Interacting Peptidylprolyl Isomerase Proteins 0.000 description 2
- 102100026114 Peptidyl-prolyl cis-trans isomerase NIMA-interacting 1 Human genes 0.000 description 2
- 102000007315 Telomeric Repeat Binding Protein 1 Human genes 0.000 description 2
- 108010033711 Telomeric Repeat Binding Protein 1 Proteins 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The invention discloses a design method of a precision resistor, which comprises the following concrete implementation processes: the method comprises the steps of setting four PIN PINs of a precision resistor, wherein two PIN PINs are used for connecting welding points, and two PIN PINs are led out independently to serve as measurement PINs. Compared with the prior art, the design method of the precision resistor adopts a 4PIN structure, thereby eliminating the influence caused by the welding parasitic effect; the structure that the resistor is separated from the welding spot is adopted, so that the influence of temperature change on the resistor is eliminated; the error of the resistance of the welding spot part is eliminated, the resistance is more accurate, the practicability is strong, and the popularization is easy.
Description
Technical field
The present invention relates to computer server technical field, specifically a kind of method for designing of practical, precision resistance.
Background technology
Along with the development of cloud computing, large data, the data volume of server process is increasing, and computing becomes increasingly complex, and server capability also gets more and more, and the internal circuit provided support for it also becomes increasingly complex.Meanwhile, to the stability of circuit, accuracy requirement is also more and more higher, so precision resistance is used widely.
Usually, in server system, due to the job requirement of different components, there is much different voltage.In order to ensure the normal work of device, the requirement of each group voltage fluctuation must control in certain limit.Along with the operating frequency of signal is more and more higher, load current is increasing, also more and more stricter, more and more meticulousr to the control of voltage.Meanwhile, because the present requirement to server energy consumption is more and more paid attention to, also more and more meticulousr to the measurement of power consumption.When measuring power consumption, the data that application precision resistance is measured are more accurate.Therefore, the method for precision resistance sensing load current is adopted to be applied.
Although precision resistance has great advantage in accuracy, along with improving constantly of designing requirement, traditional precision resistance starts slowly to expose some shortcomings in the application, tests the data drawn, under high standard requires, shows the problem that precision is not high.
Based on this, now provide a kind of method for designing of precision resistance.
Summary of the invention
Technical assignment of the present invention is for above weak point, provides a kind of method for designing of practical, precision resistance.
A method for designing for precision resistance, its specific design process is:
The PIN of precision resistance is arranged to four, wherein draws separately for two for connection welding, as measurement PIN for two.
The described pin pin that is connected with solder joint and solder joint separated, namely leave certain distance between this pin pin and solder joint.
The solder joint of described connection PIN connects the input/output terminal of precision resistance, and two other PIN connects current sense terminal.
After solder joint welds, seal in circuit by two PIN of connection welding, play conducting effect; Two other PIN is drawn, for measuring both end voltage.
The method for designing of a kind of precision resistance of the present invention, has the following advantages:
The method for designing of a kind of precision resistance that the present invention proposes, adopts 4PIN structure, eliminates the impact that welding ghost effect brings; The structure adopting resistance to be separated with solder joint, eliminates the impact of variations in temperature on resistance; Eliminate the error of pad portion resistance, resistance value is more accurate, practical, is easy to promote.
Accompanying drawing explanation
Accompanying drawing 1 is precision resistance structural representation of the present invention.
Accompanying drawing 2 is existing precision resistance structural representation.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
The invention provides a kind of method for designing of precision resistance, only have at original precision resistance on the basis of two PIN and improve, adopt four PIN structural.Meanwhile, active component and welding ends are separated.So, resistance no longer affects by external interference factor, and resistance is more stable, and the data that test draws are more accurate.
Its specific implementation process is: the PIN of precision resistance is arranged to four, wherein draws separately for two for connection welding, as measurement PIN for two.
The described pin pin that is connected with solder joint and solder joint separated, namely leave certain distance between this pin pin and solder joint.
The solder joint of described connection PIN connects the input/output terminal of precision resistance, and two other PIN connects current sense terminal.
After solder joint welds, seal in circuit by two PIN of connection welding, play conducting effect; Two other PIN is drawn, for measuring both end voltage.
As shown in Figure 1, high accuracy precision resistance adopts the structure of four PIN.Wherein: PIN1, PIN2 connection welding, PIN3, PIN4 draw separately, as measurement PIN.Meanwhile, precision resistance with not being be connected directly between together between solder joint, but at intervals.
When using, after solder joint welds, seal in circuit by PIN1, PIN2, play conducting effect.PIN3, PIN4 draw, for measuring both end voltage.Because PIN3, PIN4 are connected directly between precision circuit two ends, Output rusults is more accurate.
As shown in Figure 2, be the structural representation of traditional precision resistance.What adopt is the structure of 2PIN, and meanwhile, precision resistance itself is close to solder joint.Measuring point also carries out on solder joint.
Based on this structure, now the precision resistance in Fig. 1 and Fig. 2 is described in detail.
1) traditional in fig. 2 precision resistance design, solder joint is also measurement point, so, can affect the accuracy of test owing to welding the ghost effect brought.Because precision resistance inherently belongs to accurate device, so ghost effect can produce considerable influence to result.
In FIG, the high accuracy precision resistance design after improvement, measurement carries out at PIN3, PIN4, and avoid the impact of ghost effect on test, it is more accurate to test.
2) traditional in fig. 2 precision resistance design, precision resistance and weld spacing are from close to very, and like this, externally temperature influence is easy to the resistance having influence on precision resistance, makes test occur error.
In FIG, the high accuracy precision resistance design after improvement, internal precision resistance and solder joint maintain certain distance, and can eliminate the impact of temperature on precision resistance like this, resistance is more stable, more accurately.
3) in fig. 2, traditional precision resistance design, test point is that the resistance of welding portion also has certain voltage loss, and this part is also measured to above the voltage loss of precision resistance directly in solder joint test.Inaccurate like this.
And the high accuracy precision resistance design after improving in Fig. 1, test point is PIN3, PIN4.Like this, welding portion resistance can not have influence on measured value, and it is more accurate to test.
4) this 4PIN precision resistance connection execution mode is as follows: the input/output terminal solder joint of 1,2 outsides being welded to this precision resistance, is connected to current sense terminal by PIN3, PIN4, and the circuit that just can complete the design connects.
Like this, the method for designing proposing a kind of high accuracy precision resistance herein can be achieved.
Above-mentioned embodiment is only concrete case of the present invention; scope of patent protection of the present invention includes but not limited to above-mentioned embodiment; claims of the method for designing of any a kind of precision resistance according to the invention and the those of ordinary skill of any described technical field to its suitable change done or replacement, all should fall into scope of patent protection of the present invention.
Claims (4)
1. a method for designing for precision resistance, is characterized in that, its specific design process is:
The PIN of precision resistance is arranged to four, wherein draws separately for two for connection welding, as measurement PIN for two.
2. the method for designing of a kind of precision resistance according to claim 1, is characterized in that, the described pin pin that is connected with solder joint and solder joint separated, namely leave certain distance between this pin pin and solder joint.
3. the method for designing of a kind of precision resistance according to claim 2, is characterized in that, the solder joint of described connection PIN connects the input/output terminal of precision resistance, and two other PIN connects current sense terminal.
4. the method for designing of a kind of precision resistance according to claim 3, is characterized in that, after solder joint welds, seals in circuit, play conducting effect by two PIN of connection welding; Two other PIN is drawn, for measuring both end voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510606337.1A CN105244126A (en) | 2015-09-22 | 2015-09-22 | Design method of precision resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510606337.1A CN105244126A (en) | 2015-09-22 | 2015-09-22 | Design method of precision resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105244126A true CN105244126A (en) | 2016-01-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510606337.1A Pending CN105244126A (en) | 2015-09-22 | 2015-09-22 | Design method of precision resistor |
Country Status (1)
| Country | Link |
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| CN (1) | CN105244126A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526282A (en) * | 2016-10-25 | 2017-03-22 | 郑州云海信息技术有限公司 | Design method for improving detection accuracy of current of precision resistor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3049843B2 (en) * | 1991-04-26 | 2000-06-05 | 株式会社デンソー | Method of forming resistor electrode structure |
| CN1499191A (en) * | 2002-11-08 | 2004-05-26 | 张皇嘉 | Method for checking welding quality |
| CN101692361A (en) * | 2009-10-09 | 2010-04-07 | 乾坤科技股份有限公司 | Resistance device for sensing current |
| CN201654105U (en) * | 2010-01-08 | 2010-11-24 | 李智德 | Current detecting resistor |
| CN102385965A (en) * | 2011-09-16 | 2012-03-21 | 中航电测仪器股份有限公司 | Foil type precise resistor |
| CN103811137A (en) * | 2014-02-21 | 2014-05-21 | 致茂电子(苏州)有限公司 | Resistance device and manufacturing method thereof |
-
2015
- 2015-09-22 CN CN201510606337.1A patent/CN105244126A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3049843B2 (en) * | 1991-04-26 | 2000-06-05 | 株式会社デンソー | Method of forming resistor electrode structure |
| CN1499191A (en) * | 2002-11-08 | 2004-05-26 | 张皇嘉 | Method for checking welding quality |
| CN101692361A (en) * | 2009-10-09 | 2010-04-07 | 乾坤科技股份有限公司 | Resistance device for sensing current |
| CN201654105U (en) * | 2010-01-08 | 2010-11-24 | 李智德 | Current detecting resistor |
| CN102385965A (en) * | 2011-09-16 | 2012-03-21 | 中航电测仪器股份有限公司 | Foil type precise resistor |
| CN103811137A (en) * | 2014-02-21 | 2014-05-21 | 致茂电子(苏州)有限公司 | Resistance device and manufacturing method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526282A (en) * | 2016-10-25 | 2017-03-22 | 郑州云海信息技术有限公司 | Design method for improving detection accuracy of current of precision resistor |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160113 |
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| WD01 | Invention patent application deemed withdrawn after publication |