CN201607480U - Power supply signal testing device - Google Patents
Power supply signal testing device Download PDFInfo
- Publication number
- CN201607480U CN201607480U CN2009202692285U CN200920269228U CN201607480U CN 201607480 U CN201607480 U CN 201607480U CN 2009202692285 U CN2009202692285 U CN 2009202692285U CN 200920269228 U CN200920269228 U CN 200920269228U CN 201607480 U CN201607480 U CN 201607480U
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- signal
- power supply
- indicator
- preset value
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Abstract
The utility model relates to a power supply signal testing device. The power supply signal testing device receives a standard voltage level signal and a power supply voltage signal by a noise judging module, so as to judge whether a voltage value represented by the power supply voltage signal is higher than a voltage value represented by the standard voltage level signal or lower than the voltage value represented by the standard voltage level signal till surpass the tolerable range and display the judged measuring result by a provided output module, therefore, a user can obtain direct-current ripple and alternating-current noise quantity measuring result accurately in an intuitive and fast mode, and simultaneously the effects of lowering the cost and improving the yield are achieved.
Description
Technical field
The utility model relates to a kind of proving installation, more specifically, relates to a kind of power supply signal proving installation.
Background technology
In advanced person's electronic industry production procedure, may produce the dc ripple (DCRipple) of the AC noise (AC Noise) that is superimposed with high frequency as the direct supply of electronic installations such as motherboard.
When promoting for the requirement of low power consumption, microization (scale down) is continuous along with electronic industry, the direct supply voltage levvl that is adopted in the electronic installation also constantly reduces, to meet the demand of low power consumption and enhancing efficiency.Yet, may cause the noise margin (noise tolerance) of electronic system to descend owing to reduce the direct supply voltage levvl, and then increased the probability that electronic system can't normally be moved because of noise, so constantly the power supply voltage level that reduces is a kind of stern challenge for electronic installation deviser and fabricator.
Hence one can see that, is subjected to the degree of noise effect about direct supply voltage how to measure electronic installation exactly, also be electronic installation produce and design process in must the careful part of considering.Can measure the voltage of the voltage noise of each direct supply usually at present; yet; because general motherboard may have the important direct supply of dozens of; if so each direct supply is all implemented above-mentioned measuring process; certainly will be a quite loaded down with trivial details flow process, also can expend quite long Measuring Time simultaneously.
Therefore, how can judge fast whether power supply signal meets the requirements, be present industry institute problem demanding prompt solution.
Summary of the invention
In order to address the above problem, the purpose of this utility model is to provide a kind of device that can the testing power supply signal, in order to the power supply signal noise carried out accurately, conveniently and fast to test, fast judge whether the measured signal source meets the requirements, and make demonstration according to the result of determination of this noise determination module.
For reaching above-mentioned and other purpose, the utility model provides a kind of power supply signal proving installation, comprising: the normal voltage signal source provides default standard voltage value, and exports corresponding normal voltage horizontal signal; Power Entry Module to be measured inserts power supply voltage signal to be measured; The noise determination module, electrically connect this normal voltage signal source and this desire Power Entry Module to be measured, receive this normal voltage horizontal signal and this power supply voltage signal, and export indicator signal in view of the above, this noise determination module comprises: first judge module, receive this normal voltage horizontal signal and be converted to first preset value, relatively this power supply voltage signal and this first preset value are exported first indicator signal; Second judge module receives this normal voltage horizontal signal and is converted to second preset value, and relatively this power supply voltage signal and this second preset value are exported second indicator signal; Processing module couples this first judge module and this second judge module, receives this first indicator signal and this second indicator signal, and signal is judged in output one; And output module, be electrically connected to this noise determination module, receive this judgement signal and make corresponding demonstration.
In an embodiment of the present utility model, this first judge module comprises: first converting unit, couple this normal voltage signal source, and receive this normal voltage horizontal signal, export this first preset value; And first comparing unit, couple this Power Entry Module to be measured and this first converting unit, relatively this power supply voltage signal to be measured and this first preset value are exported this first indicator signal.This second judge module comprises: second converting unit, couple this normal voltage signal source, and receive this normal voltage horizontal signal, export this second preset value; And second comparing unit, couple this Power Entry Module to be measured and this second converting unit, relatively this power supply voltage signal to be measured and this second preset value are exported this second indicator signal.
In addition, this first preset value and this second preset value are unequal, and wherein this first preset value and this second preset value one are acceptable this supply voltage higher limit to be measured, and another is acceptable this supply voltage lower limit to be measured.
In another embodiment of the present utility model, this output module comprises: first indicator and second indicator, couple this noise determination module respectively, and according to different judgement signals, selectivity enables this first indicator or this second indicator.The pilot lamp that this first indicator and this second indicator are different colours.This processing module be one with the door one or the door.
In sum, various costs and yield problem that the dc ripple that can improve now to be adopted by power supply signal proving installation of the present utility model and AC noise measuring method are produced, except can significantly saving Measuring Time, get rid of the influence of context noise and various noise of instrument for measurement result, also can reduce in the test process damage significantly for motherboard or electronic installation caused, provide the user with intuitively thus, mode obtains dc ripple and AC noise measurement exactly fast, and reaches the effect that reduces cost and promote yield simultaneously.
Description of drawings
Fig. 1 is the inside structure synoptic diagram of the embodiment of power supply signal proving installation of the present utility model.
The main element symbol description
1 normal voltage signal source
2 Power Entry Modules to be measured
3 noise determination modules
4 output modules
10 normal voltage input ends
20 supply voltage input ends
30 digital to analog converters
30a first judge module
30b second judge module
40 first converting units
50 second converting units
60 first comparing units
70 second comparing units
80 processing modules
90r first indicator
90g second indicator
100 power supply signal proving installations
V
CcThe normal voltage horizontal signal
V
InPower supply voltage signal
V
AThe normal voltage signal
V
A1First preset value
V
A2Second preset value
V
C1Output signal
V
C2Output signal
V
I1First input end
V
I2Second input end
V
I1' first input end
V
I1' second input end
Embodiment
Following examples by abundant detailed description so that those skilled in the art can make and use the utility model, should be appreciated that, can understand other embodiment based on this disclosure, and the variation on its device or the device can be carried out not deviating under the category of the present utility model.
What this must propose explanation is that for fear of fuzzy emphasis of the present utility model, some existing electric connections (as power supply or voltage signal) will no longer be described in detail with basic circuit elements.
Moreover, be used for the accompanying drawing of illustration the utility model embodiment, some common trait in different embodiment, for clear and explanation easily, describe and understand, similar or identical feature will be narrated with same reference numerals.
Consult Fig. 1, it is the inside structure synoptic diagram of the embodiment of power supply signal proving installation 100 of the present utility model.The power supply signal proving installation 100 of present embodiment comprises four parts: normal voltage signal source 1, Power Entry Module to be measured 2, noise determination module 3 and output module 4.
As shown in Figure 1, normal voltage signal source 1 comprises normal voltage input end 10, provides the user directly to import corresponding normal voltage horizontal signal V according to different testing requirements
Cc, and with normal voltage horizontal signal V that the user imported
CcWith the form output of digital signal or simulating signal, and adopt digital signal in the present embodiment as output form.In addition, this normal voltage signal source 1 also optionally comprises button or the setting device (not shown) in order to input voltage numerical value.Power Entry Module 2 to be measured comprises supply voltage input end 20, in order to the power supply voltage signal of desiring to test V to be provided
InAnd this normal voltage signal source 1 and this Power Entry Module 2 to be measured all are electrically connected to this noise determination module 3.
This noise determination module 3 comprises a digital to analog converter (DAC) 30, the first judge module 30a, the second judge module 30b and processing module 80.
This first judge module 30a comprises first converting unit 40 and first comparing unit 60.This second judge module 30b comprises second converting unit 50 and second comparing unit 70.
Because standard voltage levvl signal V in the present embodiment
CcBe digital signal, therefore must use digital to analog converter 30 to change, with the normal voltage signal V of output simulation
AThis digital to analog converter 30 is in order to receive the normal voltage horizontal signal V that transmits from this normal voltage input end 10
Cc, and received digital signal is converted into normal voltage signal V
A, then with this normal voltage signal V
AExport first converting unit 40 and second converting unit 50 to.It should be noted that, because design that the digital to analog converter of different size is required and manufacturing cost possibility gap are very big, so in order to reach the demand of accuracy of measurement, this digital to analog converter 30 can adopt the digital to analog converter of different resolution (resolution) according to required accuracy of measurement.
First converting unit 40 can be amplified received analog voltage signal with specific enlargement ratio, the voltage amplification multiplying power of first converting unit 40 is 1.05 times in the present embodiment, so not as limit.That is first converting unit 40 can promote 5 percent with the voltage levvl of the analog voltage signal that received, and will be through voltage levvl output the becoming first preset value V that promotes
A1Similarly, second converting unit 50 can be amplified received analog voltage signal with specific enlargement ratio, and the voltage amplification multiplying power of this second converting unit 50 is 0.95 times in the present embodiment, so not as limit.That is second converting unit 50 can reduce by 5 percent with the voltage levvl of the analog voltage signal that received, and will be through voltage levvl output the becoming second preset value V that reduces
A2
First comparing unit 60 and second comparing unit 70 are analog voltage comparator and have two analog voltage inputs, in order to export corresponding digital signal output according to the voltage comparative result of two input signals.The first input end V of first comparing unit 60
I1With the second input end V
I2Be electrically connected to the output terminal of the supply voltage input end 20 and first converting unit 40 respectively, the power supply voltage signal V that desires to test in order to reception
InAnd the first preset value V
A1, then at input end V
I1And V
I2Received voltage levvl V
InAnd the first preset value V
A1Compare, and according to comparative result output V
C1, V wherein
C1Digital signal for logical one or 0.Similarly, the first input end V of second comparing unit 70
I1' and the second input end V
I2' be electrically connected to the output terminal of the supply voltage input end 20 and second converting unit 50 respectively, the power supply voltage signal V that desires to test in order to reception
InAnd the second preset value V
A2, then at input end V
I1' and V
I2' received voltage levvl V
InAnd the second preset value V
A2Compare, and according to comparative result output V
C2, V wherein
C2It also is the digital signal of logical one or 0.In the present embodiment, processing module 80 be one or, it is electrically connected to first comparing unit 60 and second comparing unit 70, in order to receive output signal V
C1And V
C2, and according to output signal V
C1And V
C2Between corresponding logical one of Boolean function (boolean) relation output or 0 signal.
Be that in preferred embodiment of the present utility model, processing module 80 interchangeable being set to and door (AND gate) are decided on the input end configuring condition of first comparing unit 60 and second comparing unit 70 what this must propose explanation especially.For example, as the first input end V of first comparing unit 60
I1The voltage signal that is received is greater than the second input end V
I2During the voltage signal that received, then export V
C1To be the logical one current potential, and processing module 80 must be arranged to or door, with reaction power supply voltage signal V
InOvergauge voltage levvl signal V
CcOne of percentage 105.Therefore, the test function and the demand of the visual circuit of logical operation of processing module 80 change.
Output module 4 comprises the first indicator 90r and the second indicator 90g, and indicator 90r, 90g all be electrically connected to this processing module 80, in order to receive its output signal.When this processing module 80 output logics 0 signal, then the second indicator 90g is enabled.Relatively, when this processing module 80 output logics 1 signal, then the first indicator 90r is enabled.In addition, output module 4 also optionally comprises time set or timing circuit (not shown), in order to write down the time span that the second indicator 90g is enabled continuously.Moreover the first indicator 90r and the second indicator 90g can be for example but are not defined as redness or green LED, that is can show output state signal and have the display unit or the light-emitting component of different display colors.
In sum, power supply signal proving installation 100 allows the user directly to import corresponding normal voltage horizontal signal V according to different testing requirements
Cc, the power supply voltage signal V that input is simultaneously desired to test
In, then pass through digital to analog converter 30 with normal voltage horizontal signal V
CcBe converted into normal voltage signal V
ANext, pass through first converting unit 40 and second converting unit 50 respectively with received normal voltage signal V
AAmplify and the generation output voltage V with specific enlargement ratio
A1And V
A260 couples of power supply voltage signal V of first comparing unit
InAnd output voltage V
A1Compare; 70 couples of power supply voltage signal V of second comparing unit
InAnd this output voltage V
A2Compare.First comparing unit 60 and second comparing unit 70 export above-mentioned comparative result to processing module 80 respectively, follow by processing module 80 according to output signal V
C1And V
C2Between corresponding logical one of Boolean function relation output or 0 signal.And the logical signal that processing module 80 is exported can be controlled the first indicator 90r respectively and the second indicator 90g enables according to the demonstration demand that measures.
As mentioned above, the utility model provides power supply signal proving installation 100 to carry out dc ripple and AC noise measurement.At first, input normal voltage signal V
CcAnd power supply voltage signal V to be measured
InThen, judge power supply voltage signal V to be measured
InWhether represented magnitude of voltage overgauge voltage signal V
CcOne of percentage of represented magnitude of voltage 105 is if then enable the first indicator 90r and then finish testing process; If not, then judge power supply voltage signal V to be measured
InWhether represented magnitude of voltage is less than normal voltage signal V
Cc95 percent of represented magnitude of voltage is if then enable the first indicator 90r and then finish testing process; If not, then enable the second indicator 90g.Then judge the time span that the second indicator 90g is enabled, when the second indicator 90g is continued to enable to reach Preset Time, for example one minute the time, then finish testing process.
Therefore, various costs and yield problem that the dc ripple that can improve now to be adopted by power supply signal proving installation of the present utility model and AC noise measuring method are produced, except can significantly saving Measuring Time, get rid of the influence of context noise and various noise of instrument for measurement result, also can reduce in the test process damage significantly for motherboard or electronic installation caused, provide the user with intuitively thus, mode obtains dc ripple and AC noise measurement exactly fast, and reaches the effect that reduces cost and promote yield simultaneously.
The foregoing description is illustrative principle of the present utility model and effect thereof only, but not is used to limit the utility model.Any those skilled in the art all can be under the spirit and category of utility model, and the foregoing description is modified and changed.Therefore, rights protection scope of the present utility model should be listed as claims scope.
Claims (8)
1. a power supply signal proving installation is characterized in that, this power supply signal proving installation comprises:
The normal voltage signal source provides default standard voltage value, and exports corresponding normal voltage horizontal signal;
Power Entry Module to be measured inserts power supply voltage signal to be measured;
The noise determination module electrically connects this normal voltage signal source and this Power Entry Module to be measured, receives this normal voltage horizontal signal and this power supply voltage signal, and exports indicator signal in view of the above, and this noise determination module comprises:
First judge module receives this normal voltage horizontal signal and is converted to first preset value, and relatively this power supply voltage signal and this first preset value are exported first indicator signal;
Second judge module receives this normal voltage horizontal signal and is converted to second preset value, and relatively this power supply voltage signal and this second preset value are exported second indicator signal;
Processing module couples this first judge module and this second judge module, receives this first indicator signal and this second indicator signal, and signal is judged in output; And
Output module is electrically connected to this noise determination module, receives this judgement signal and make corresponding demonstration.
2. power supply signal proving installation according to claim 1 is characterized in that, this first judge module comprises:
First converting unit couples this normal voltage signal source, receives this normal voltage horizontal signal, exports this first preset value; And
First comparing unit couples this Power Entry Module to be measured and this first converting unit, and relatively this power supply voltage signal to be measured and this first preset value are exported this first indicator signal.
3. power supply signal proving installation according to claim 1 is characterized in that, this second judge module comprises:
Second converting unit couples this normal voltage signal source, receives this normal voltage horizontal signal, exports this second preset value; And
Second comparing unit couples this Power Entry Module to be measured and this second converting unit, and relatively this power supply voltage signal to be measured and this second preset value are exported this second indicator signal.
4. power supply signal proving installation according to claim 1, it is characterized in that, this first preset value and this second preset value are unequal, wherein this first preset value and this second preset value one of them be acceptable this supply voltage higher limit to be measured, another is acceptable this supply voltage lower limit to be measured.
5. power supply signal proving installation according to claim 1, it is characterized in that this output module comprises: first indicator and second indicator couple this noise determination module respectively, according to different judgement signals, selectivity enables this first indicator or this second indicator.
6. power supply signal proving installation according to claim 1 is characterized in that, the pilot lamp that this first indicator and this second indicator are different colours.
7. power supply signal proving installation according to claim 1 is characterized in that this processing module is and door.
8. power supply signal proving installation according to claim 1 is characterized in that, this processing module is or door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202692285U CN201607480U (en) | 2009-11-13 | 2009-11-13 | Power supply signal testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202692285U CN201607480U (en) | 2009-11-13 | 2009-11-13 | Power supply signal testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201607480U true CN201607480U (en) | 2010-10-13 |
Family
ID=42952185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202692285U Expired - Fee Related CN201607480U (en) | 2009-11-13 | 2009-11-13 | Power supply signal testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201607480U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788895A (en) * | 2011-05-18 | 2012-11-21 | 富泰华工业（深圳）有限公司 | Alternating voltage detection circuit |
| CN102830296A (en) * | 2011-06-16 | 2012-12-19 | 上海天祥质量技术服务有限公司 | Power supply ripple interference test method and system |
| CN103246593A (en) * | 2012-02-14 | 2013-08-14 | 鸿富锦精密工业（深圳）有限公司 | Server and voltage detection warning system thereof |
| CN105116316A (en) * | 2015-07-14 | 2015-12-02 | 工业和信息化部电子第五研究所 | Integrated circuit power supply noise measurement system |
| CN106464624A (en) * | 2016-07-12 | 2017-02-22 | 深圳市汇顶科技股份有限公司 | A signal demodulating device for an enclosed communications system and a method thereof |
| CN105807149B (en) * | 2015-01-19 | 2018-11-27 | Ls产电株式会社 | Detect the device of the noise in the power supply of PLC simulation input output module |
| WO2023184617A1 (en) * | 2022-03-28 | 2023-10-05 | 长鑫存储技术有限公司 | Power supply mapping detection method and apparatus, electronic device, and medium |
| US11892520B2 (en) | 2022-03-28 | 2024-02-06 | Changxin Memory Technologies, Inc. | Method and device for power supply mapping detection, electronic device, and medium |
-
2009
- 2009-11-13 CN CN2009202692285U patent/CN201607480U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788895A (en) * | 2011-05-18 | 2012-11-21 | 富泰华工业（深圳）有限公司 | Alternating voltage detection circuit |
| CN102830296A (en) * | 2011-06-16 | 2012-12-19 | 上海天祥质量技术服务有限公司 | Power supply ripple interference test method and system |
| CN102830296B (en) * | 2011-06-16 | 2015-11-25 | 上海天祥质量技术服务有限公司 | Power supply ripple disturbed test method and system |
| CN103246593A (en) * | 2012-02-14 | 2013-08-14 | 鸿富锦精密工业（深圳）有限公司 | Server and voltage detection warning system thereof |
| CN105807149B (en) * | 2015-01-19 | 2018-11-27 | Ls产电株式会社 | Detect the device of the noise in the power supply of PLC simulation input output module |
| CN105116316A (en) * | 2015-07-14 | 2015-12-02 | 工业和信息化部电子第五研究所 | Integrated circuit power supply noise measurement system |
| CN105116316B (en) * | 2015-07-14 | 2017-12-05 | 工业和信息化部电子第五研究所 | Ic power noise measurement system |
| CN106464624A (en) * | 2016-07-12 | 2017-02-22 | 深圳市汇顶科技股份有限公司 | A signal demodulating device for an enclosed communications system and a method thereof |
| WO2018010082A1 (en) * | 2016-07-12 | 2018-01-18 | 深圳市汇顶科技股份有限公司 | Signal demodulating device and method applying to closed communication system |
| US10291388B2 (en) | 2016-07-12 | 2019-05-14 | Shenzhen GOODIX Technology Co., Ltd. | Signal demodulation apparatus and method in closed communication system |
| WO2023184617A1 (en) * | 2022-03-28 | 2023-10-05 | 长鑫存储技术有限公司 | Power supply mapping detection method and apparatus, electronic device, and medium |
| US11892520B2 (en) | 2022-03-28 | 2024-02-06 | Changxin Memory Technologies, Inc. | Method and device for power supply mapping detection, electronic device, and medium |
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| 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: 20101013 Termination date: 20121113 |