CN104345226A - Electronic component testing system - Google Patents
Electronic component testing system Download PDFInfo
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- CN104345226A CN104345226A CN201310330275.7A CN201310330275A CN104345226A CN 104345226 A CN104345226 A CN 104345226A CN 201310330275 A CN201310330275 A CN 201310330275A CN 104345226 A CN104345226 A CN 104345226A
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- alternating current
- power supply
- current filter
- transformer
- power
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Abstract
Disclosed is an electronic component testing system. The system comprises a power circuit, a host computer, a data acquisition module, a signal conditioning circuit, a front transformer, a rear transformer, a noise generator, an AC adjustable input power source, an AC filter, a DC voltage stabilizing power module and a power adjustable load. According to the invention, through arranging the two transformers in front of and behind the filter, after voltage change beforehand and afterwards of the filter is transformed, a comparison between waveforms before and after the filtering is made for the data acquisition module to acquire data; and at the same time, through changing the power amplitude of the input end of the DC voltage stabilizing power module and adjusting of the power load, the voltage stabilizing effect is detected. The electronic component testing system has the advantages of simple structure, high economic benefits and adaptability, convenient operation and accurate testing results, thereby being suitable for performance testing of the AC filter and the DC voltage stabilizing power module.
Description
Technical field
The present invention relates to a kind of electronic device, particularly a kind of electronic devices and components test macro.
Background technology
Wave filter is a kind of device or circuit of signal being had to process effect.Main Function allows useful signal is zero-decrement as far as possible to be passed through, the reflection large as far as possible to garbage signal.Alternating current filter is for reducing the harmonic voltage on ac bus and reduces the harmonic current and the wave filter that designs that inject the AC system that is connected.Sinewave output voltage obtains waveform filtering such as square wave, Using Sinusoidal Pulse Width Modulation ripple or staircase waveforms through alternating current filter, therefore, exports, so often need to use alternating current filter to obtain ideal sine voltage.
Voltage stabilizer is a kind of feed circuit or power-supply unit that automatically can adjust output voltage, its effect is stabilized in its range of set value by comparatively large for the fluctuation supply voltage with not reaching electric equipment requirement, and various circuit or electric equipment normally can be worked under rated operational voltage.
The power supply of D.C. regulated power supply module is mostly AC power, and when voltage or the pull-up resistor change of communication power supply, the VD of D.C. regulated power supply module all can keep stable.
Summary of the invention
Object of the present invention, is just to solve the problem, and provides a kind of electronic devices and components test macro.
The object of the present invention is achieved like this: a kind of electronic devices and components test macro, comprises power circuit, host computer, data acquisition module, signal conditioning circuit, front transformer, rear transformer, noisemaker, interchange is adjustable input power, alternating current filter, D.C. regulated power supply module and power adjustable load; Power circuit is respectively with data acquisition module, signal conditioning circuit, front transformer, rear transformer, alternating current filter and exchange adjustable input power and be connected to them and provide direct current or alternating current; Host computer is connected with data acquisition module, signal conditioning circuit respectively with data acquisition module, front transformer, rear transformer, D.C. regulated power supply model calling; Noisemaker is connected with alternating current filter; Front transformer, rear transformer are also connected with the front and back of alternating current filter respectively; Exchange adjustable input power and also connect alternating current filter and D.C. regulated power supply module respectively; Power adjustable load is connected with D.C. regulated power supply module.
Describedly also comprise alternating current filter fixture and D.C. regulated power supply Modular jig, described alternating current filter is placed on alternating current filter fixture, and described D.C. regulated power supply modules house is on D.C. regulated power supply Modular jig.
Described host computer with adopt between data acquisition module that serial ports is connected, usb bus connects or pci bus connects.
Described data acquisition module has analog input AD, analog output DA, digital quantity input DI, digital output DO function.
Described power circuit provides 220V or 110V alternating voltage to the adjustable input power of interchange, and provides 24V, 12V or 5V DC voltage respectively to signal conditioning circuit, front transformer, rear transformer and alternating current filter.
Described noisemaker produces the man-made noise signal of frequency modulation, amplitude modulation.
Described interchange is adjustable input power provides test voltage for alternating current filter, or provides the voltage of 90-250V interval change for D.C. regulated power supply module.
Described power adjustable load, by regulating load power, detects the voltage regulation result of D.C. regulated power supply module.
Host computer in the present invention is connected with data acquisition module, sends control signal, receives the feedback signal of transformer and the D.C. regulated power supply module be placed on before and after alternating current filter, carries out detection perform judgement; Exchanging adjustable input power provides an alternating-current magnitude to be 90-250V, frequency is the variable power supply signal of 50Hz, 60Hz, noisemaker provides the man-made noise signal of a Frequency Adjustable, amplitude modulation, and alternating current filter receives the noise signal from noisemaker, and makes respective handling; Forward and backward transformer is connected in before and after wave filter respectively, the change in voltage of wave filter before and after test input noise signal; Power adjustable load is connected with D.C. regulated power supply module, adjustable input supply voltage (90-250V is interval) and power adjustable load (0-50W) is exchanged by regulating, gather the output voltage of D.C. regulated power supply module, detect its voltage regulation result; Test figure is saved to PC, and by man-machine interface and operator mutual.
The present invention has that structure is simple, economic and practical, easy to operate, test result feature accurately, is applicable to the performance test of alternating current filter, D.C. regulated power supply module, for system, parts type selecting, Product checking provide foundation.
Accompanying drawing explanation
Fig. 1 is the electrical structure schematic diagram of test macro of the present invention;
Fig. 2 is test procedure process flow diagram of the present invention;
Fig. 3 is alternating current filter fixture schematic diagram;
Fig. 4 is D.C. regulated power supply Modular jig schematic diagram.
Embodiment
See Fig. 1, electronic devices and components test macro of the present invention, comprises power circuit 1, host computer 2, data acquisition module 3, signal conditioning circuit 4, front transformer 5, rear transformer 6, noisemaker 7, exchanges adjustable input power 8, alternating current filter 9, D.C. regulated power supply module 10 and power adjustable load 11.Wherein, power circuit 1 is respectively with data acquisition module 3, signal conditioning circuit 4, front transformer 5, rear transformer 6, alternating current filter 9 and exchange adjustable input power 8 and be connected to them and provide direct current or alternating current; Host computer 2 is connected with data acquisition module 3, and signal conditioning circuit 4 is connected with data acquisition module 3, front transformer 5, rear transformer 6, D.C. regulated power supply module 10 respectively; Noisemaker 7 is connected with alternating current filter 9; Front transformer 5, rear transformer 6 are also connected with the front and back of alternating current filter 9 respectively; Exchange adjustable input power 8 and also connect alternating current filter 9 and D.C. regulated power supply module 10 respectively; Power adjustable load 11 is connected with D.C. regulated power supply module.
Host computer 2 in the present invention is outwards transmitted control signal by data acquisition module 3, signal conditioning circuit 4 receives the voltage signal of transformer 5, the 6 and D.C. regulated power supply module 10 be placed on before and after alternating current filter, feed back to host computer 2, host computer 2 processes to the received signal, thus judge the performance of alternating current filter 9, D.C. regulated power supply module 10, result is mutual by man-machine interface and operator, and data are preserved.
Front transformer 5, rear transformer 6 and D.C. regulated power supply module 10 can be inputed to host computer by AD conversion by the data acquisition module 3 in the present invention.
Signal conditioning circuit 4 in the present invention has the function of signal Isolation.
The input power of the power circuit 1 in the present invention is industrial-frequency alternating current 220V 50Hz, by transformation and rectification, 220V and 110V alternating voltage is exported to the adjustable input power 8 of interchange, and export 24V, 12V, 5V DC voltage, for data acquisition module 3, signal conditioning circuit 4, front transformer 5, rear transformer 6, alternating current filter 9 provide working power.
Front transformer 5 in the present invention, rear transformer 6 are connected on before and after alternating current filter 9 respectively, after the change in voltage transformation be used for before and after by alternating current filter, gather for data acquisition module 3.
Noisemaker 7 in the present invention can provide the man-made noise signal of a frequency modulation, amplitude modulation.
Interchange in the present invention is adjustable input power 8, the test that can be alternating current filter 9 provides test voltage, and the test that also can be D.C. regulated power supply module 10 provides the voltage of 90-250V interval change.
After power adjustable load 11 in the present invention is connected on D.C. regulated power supply module 10, by regulating load power, detect the voltage regulation result of D.C. regulated power supply module 10.
As shown in Figure 2, test job process of the present invention is: after system electrification, selects start button, enters into test page, and optional choosing friends flows filters to test or D.C. regulated power supply module testing.If select alternating current filter test, start and regulate and exchange adjustable input supply voltage to test voltage, start noisemaker, gather alternating current filter front and back end voltage, and at host computer PC end display graphics curve, after judging filtering by calculating, whether AC power overcomes voltage disturbance, whether curve is level and smooth, if voltage disturbance is within ± 5%, then judge that wave filter is qualified, otherwise judge defective; If select DC voltage-stabilizing module testing, start and exchange adjustable input power, in the test period (5 minutes), adjustable input supply voltage (90-250V is interval) and power adjustable load (0 ~ 50W) is exchanged by regulating, gather the output voltage of DC voltage-stabilizing module, and at host computer PC end display graphics curve, if meeting error were less than ± 2%, then judge that DC voltage-stabilizing module is qualified, otherwise judge defective.
As shown in Figure 3, the alternating current filter fixture in the present invention is made up of clamp base 14, fixture case 15, movable clamp 16, flexible springs 17 and retaining clip 18.Clamp base 14 is fixed on test board, and fixture case 15 is fixed in clamp base 14, and flexible springs 17 is placed between fixture case 15 and movable clamp 16, and retaining clip 18 is also fixed in clamp base 14.When alternating current filter placed by needs, only need pull out movable clamp 16, distance between movable clamp 16 and retaining clip 18 just becomes large, so that can alternating current filter be put down, then come loose activity clamp 16, flexible springs 17 will return to original pre-stressed position, so that can clamp alternating current filter, makes it not loosen.
As shown in Figure 4, the D.C. regulated power supply Modular jig in the present invention is made up of clamp base 19, bread board 20, fixture 21, power connector 24.Clamp base 19 is fixed on test board, and bread board 20 is fixed in clamp base 19, and fixture 21 and power connector 24 are fixed on bread board 20.Pull bar 22 on fixture 21 has two movable gears (horizontal and vertical), when D.C. regulated power supply module placed by needs, only pull bar 22 need be drawn to vertical gear, then D.C. regulated power supply module is placed in intermediate plate 23, again pull bar 22 is drawn to horizontal gear, intermediate plate 23 just can clamp D.C. regulated power supply module, makes it not loosen.
Claims (8)
1. an electronic devices and components test macro, is characterized in that: comprise power circuit, host computer, data acquisition module, signal conditioning circuit, front transformer, rear transformer, noisemaker, interchange is adjustable input power, alternating current filter, D.C. regulated power supply module and power adjustable load; Power circuit is respectively with data acquisition module, signal conditioning circuit, front transformer, rear transformer, alternating current filter and exchange adjustable input power and be connected to them and provide direct current or alternating current; Host computer is connected with data acquisition module, signal conditioning circuit respectively with data acquisition module, front transformer, rear transformer, D.C. regulated power supply model calling; Noisemaker is connected with alternating current filter; Front transformer, rear transformer are also connected with the front and back of alternating current filter respectively; Exchange adjustable input power and also connect alternating current filter and D.C. regulated power supply module respectively; Power adjustable load is connected with D.C. regulated power supply module.
2. electronic devices and components test macro according to claim 1, it is characterized in that: describedly also comprise alternating current filter fixture and D.C. regulated power supply Modular jig, described alternating current filter is placed on alternating current filter fixture, and described D.C. regulated power supply modules house is on D.C. regulated power supply Modular jig.
3. electronic devices and components test macro according to claim 1, is characterized in that: described host computer with adopt between data acquisition module that serial ports is connected, usb bus connects or pci bus connects.
4. electronic devices and components test macro according to claim 1, is characterized in that: described data acquisition module has analog input AD, analog output DA, digital quantity input DI, digital output DO function.
5. electronic devices and components test macro according to claim 1, it is characterized in that: described power circuit provides 220V or 110V alternating voltage to the adjustable input power of interchange, and provides 24V, 12V or 5V DC voltage respectively to signal conditioning circuit, front transformer, rear transformer and alternating current filter.
6. electronic devices and components test macro according to claim 1, is characterized in that: described noisemaker produces the man-made noise signal of frequency modulation, amplitude modulation.
7. electronic devices and components test macro according to claim 1, is characterized in that: described interchange is adjustable input power provides test voltage for alternating current filter, or provides the voltage of 90-250V interval change for D.C. regulated power supply module.
8. electronic devices and components test macro according to claim 1, is characterized in that: described power adjustable load, by regulating load power, detects the voltage regulation result of D.C. regulated power supply module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310330275.7A CN104345226A (en) | 2013-07-31 | 2013-07-31 | Electronic component testing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310330275.7A CN104345226A (en) | 2013-07-31 | 2013-07-31 | Electronic component testing system |
Publications (1)
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| CN104345226A true CN104345226A (en) | 2015-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310330275.7A Pending CN104345226A (en) | 2013-07-31 | 2013-07-31 | Electronic component testing system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105931446A (en) * | 2016-06-28 | 2016-09-07 | 常州机电职业技术学院 | Testing system for gas data acquiring unit and working method of testing system |
| CN106405236A (en) * | 2016-10-27 | 2017-02-15 | 中国地质大学（武汉） | Weak ripple and harmonic voltage detection device and method for direct-current voltage-stabilized power supply |
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- 2013-07-31 CN CN201310330275.7A patent/CN104345226A/en active Pending
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| CN1881729A (en) * | 2005-06-15 | 2006-12-20 | 许继集团有限公司 | Harmonic measuring method for AC filter protection |
| CN101470163A (en) * | 2007-12-27 | 2009-07-01 | 奥雷通光通讯设备（上海）有限公司 | Debugging method for filter |
| CN101315404A (en) * | 2008-07-18 | 2008-12-03 | 上海埃德电子股份有限公司 | Automatic test system of electromagnetic interference power filter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105931446A (en) * | 2016-06-28 | 2016-09-07 | 常州机电职业技术学院 | Testing system for gas data acquiring unit and working method of testing system |
| CN106405236A (en) * | 2016-10-27 | 2017-02-15 | 中国地质大学（武汉） | Weak ripple and harmonic voltage detection device and method for direct-current voltage-stabilized power supply |
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Application publication date: 20150211 |