CN202548302U - LED power source testing system - Google Patents
LED power source testing system Download PDFInfo
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- CN202548302U CN202548302U CN 201220120451 CN201220120451U CN202548302U CN 202548302 U CN202548302 U CN 202548302U CN 201220120451 CN201220120451 CN 201220120451 CN 201220120451 U CN201220120451 U CN 201220120451U CN 202548302 U CN202548302 U CN 202548302U
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Abstract
The utility model discloses an LED power source testing system. The LED power source testing system includes an AC power source, a to-be-tested power source board, an LED lamp board and a testing device, wherein the testing device includes an input interface circuit, a display screen, a microcontroller, an AC voltage collecting circuit, an AC current collecting circuit, a DC voltage detecting circuit and a DC current detecting circuit; the to-be-tested power source board connects with the LED lamp board; and the AC power source connects with the microcontroller. Both of the input interface circuit and the display screen connect with the microcontroller. The microcontroller connects with the AC power source through the AC voltage collecting circuit and the current collecting circuit and, thereby measuring AC input current and AC input voltage. The microcontroller connects with the LED lamp board through the DC current detecting circuit, thereby measuring DC current. The microcontroller connects with an output terminal of the to-be-tested power source board through the DC voltage detecting circuit, thereby measuring output DC voltage. The LED power source testing system provided by the utility model is developed aiming to an LED power source. The LED power source testing system is small in size, low in cost, and high in testing efficiency and accuracy.
Description
Technical field
The utility model relates to the LED technical field, relates more specifically to a kind of testing efficiency height, accurate test result LED power detecting system.
Background technology
Along with the development of LED lighting engineering, LED is widely used in multiple places such as household electrical appliance, communal facility illuminations.Being provided with LED driving power (electric pressure converter) in the LED light fixture comes driving LED luminous to convert the power supply supply into specific electric current and voltage.Generally, the input of LED driving power comprises high pressure industrial frequency AC (being civil power), low-voltage direct, HVDC, low pressure high-frequency ac (like the output of electronic transformer) etc.The output of LED driving power is then most of for changing the constant current source that change voltage with LED forward voltage drop value.Before the LED driving power comes into operation, all need test stability and reliability usually to its performance to guarantee its use.
In the test of LED driving power, method commonly used at present is the input parameter that the test of power consumption parameter tester exchanges, and the direct current output is to realize the electric current of direct current and the test of voltage with electronic load or multimeter.Control whole test system with industrial PC at last.The shortcoming of this test mode is that whole test system is bulky, and maintenance cost is high, and testing efficiency is low, and electronic load makes test result occur deviation easily because of the VA characteristic curve problem of LED lamp not too is fit to be applied to the LED power supply.
Therefore, be necessary to provide a kind of volume is less, cost is lower, efficient is higher and accuracy is higher LED power detecting system to address the aforementioned drawbacks.
The utility model content
The purpose of the utility model provides the LED power detecting system that a kind of volume is less, cost is lower, efficient is higher and accuracy is higher.
To achieve these goals; The technical scheme that the utility model adopts is: a kind of LED power detecting system that provides; It comprises AC power, power panel to be tested, LED lamp plate and proving installation; Said proving installation comprises input interface circuit, display screen, microcontroller, AC voltage sampling circuit, AC current collecting circuit, DC voltage testing circuit and D.C. current detecting circuit; Said power panel to be tested links to each other with said LED lamp plate and is said LED lamp plate power supply; Said AC power links to each other with said microcontroller and is said microcontroller power supply; Said input interface all links to each other with said microcontroller to realize input and output respectively with display screen; Said microcontroller links to each other with said AC power through said AC voltage sampling circuit and AC current collecting circuit and exchanges input current and voltage to measure, and said microcontroller links to each other with said LED lamp plate to measure output DC stream through said D.C. current detecting circuit, and said microcontroller links to each other with the output terminal of said power panel to be tested to measure output dc voltage through said DC voltage testing circuit.
Its further technical scheme is: said microcontroller also is connected with one and exchanges holding circuit, and said interchange holding circuit links to each other with said AC power.
Its further technical scheme is: said microcontroller also is connected with a memory interface circuit.
Its further technical scheme is: said microcontroller also is connected with a buzzer alarm circuit.
Its further technical scheme is: said input interface circuit comprises keystroke interface circuit and/or computer interface circuit.
Its further technical scheme is: said display screen is a LCD display.
Compared with prior art; The utility model LED power detecting system is developed to the LED power supply specially; Can test automatically the performance parameter of tested LED power supply; Solve the problem of test duration in the artificial test process, avoided the misjudgement and the erroneous judgement that cause because of the test duration is different in size, improved testing efficiency and test accuracy greatly.Simultaneously, this test macro advantages of small volume, cost are lower, reach high cost performance, can be widely used in LED power supply manufacturing.
Through following description and combine accompanying drawing, it is more clear that the utility model will become, and these accompanying drawings are used to explain the embodiment of the utility model.
Description of drawings
Fig. 1 is the structural representation of the utility model LED power detecting system one embodiment.
Each description of reference numerals is following among the figure:
LED power detecting system 10 AC powers 11
Proving installation 14 input interface circuits 141
Keystroke interface circuit 141a computer interface circuit 141b
AC voltage sampling circuit 144a AC current collecting circuit 144b
DC voltage testing circuit 145a D.C. current detecting circuit 145b
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the embodiment is carried out clear, intactly description, similar assembly label is represented similar assembly in the accompanying drawing.Obviously, below only be the utility model part embodiment with the embodiment that describes, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
At first please with reference to Fig. 1, Fig. 1 has showed the synoptic diagram of the utility model LED power detecting system one embodiment.As shown in Figure 1; The LED power detecting system 10 of present embodiment comprises AC power 11, power panel to be tested 12, LED lamp plate 13 and proving installation 14, and said proving installation 14 comprises input interface circuit 141, display screen 142, microcontroller (MCU) 143, AC voltage sampling circuit 144a, AC current collecting circuit 144b, DC voltage testing circuit 145a and D.C. current detecting circuit 145b.Wherein, said power panel 12 to be tested links to each other with said LED lamp plate 13 and is said LED lamp plate 13 power supplies, and said AC power 11 links to each other with said microcontroller 143 and is said microcontroller 143 power supplies.
In the present embodiment; Said input interface circuit 141 comprises keystroke interface circuit 141a and computer interface circuit 141b; Said keystroke interface circuit 141a all links to each other with said microcontroller 143 with computer interface circuit 141b, thereby realizes two kinds of test patterns of manually input and automatic input respectively.If adopt automatic input pattern, then can pass through bound, and judge automatically through 143 pairs of products that do not meet the demands of microcontroller in computer installation current/voltage parameter, realize test automatically.And also can deposit in automatically in the computer document folder for set parameter, if also will produce next time, only need open file downloads to test macro again and gets final product, and can raise the efficiency greatly like this, alleviates operator's work load.
In the present embodiment; Said microcontroller 143 links to each other with said AC power 11 through said AC voltage sampling circuit 144a and AC current collecting circuit 144b and exchanges input current and voltage to measure; Said microcontroller 143 links to each other with the output terminal of said power panel 12 to be tested to measure the output dc voltage of power panel 12 to be tested through said DC voltage testing circuit 145a, and said microcontroller 143 links to each other with said LED lamp plate 13 to measure output DC stream through said D.C. current detecting circuit 145b.And in the present embodiment, said display screen is a LCD display 142, and this LCD display 142 links to each other to show the test result of 143 pairs of LED power supplys to be tested of said microcontroller with said microcontroller 143.
In this preferred embodiment, said microcontroller 143 also is connected with one and exchanges holding circuit 146, and said interchange holding circuit 146 links to each other with said AC power 11.For exchanging holding circuit 146, in traditional testing system, needing artificially, cut-off protection circuit causes unnecessary power loss to prevent this holding circuit.And in the present embodiment, under the control of said microcontroller 143, can judge whether to launch interchange holding circuit 146 automatically through detecting input current, reach the effect of energy efficient.
Preferably, said microcontroller 143 also is connected with a buzzer alarm circuit 147 to realize connecing anti-warning function automatically, has avoided personnel and safety of products protection are enlarged in order to avoid cause fault.
Equally preferably, said microcontroller 143 also is connected with a memory interface circuit 148 with external USB flash disk or other USB storage, thereby store test data in real time is beneficial to client or QC personnel examination.
When launching this test macro; Need earlier MCU to be carried out initialization; When start key was pressed, MCU detected input AC electric current, voltage and output DC stream, voltage, then is stored if measured parameter is qualified; If measured parameter surpasses the parameter upper lower limit value that is provided with in advance, then system cuts off the power supply automatically and produces alarm through hummer.
As stated; The utility model LED power detecting system is developed to the LED power supply specially; Can test automatically the performance parameter of tested LED power supply; Solve the problem of test duration in the artificial test process, avoided the misjudgement and the erroneous judgement that cause because of the test duration is different in size, improved testing efficiency and test accuracy greatly.Simultaneously, this test macro advantages of small volume, cost are lower, reach high cost performance, can be widely used in LED power supply manufacturing.
More than combine most preferred embodiment that the utility model is described, but the utility model is not limited to the embodiment of above announcement, and should contains various modification, equivalent combinations of carrying out according to the essence of the utility model.
Claims (6)
1. LED power detecting system; It is characterized in that: comprise AC power, power panel to be tested, LED lamp plate and proving installation; Said proving installation comprises input interface circuit, display screen, microcontroller, AC voltage sampling circuit, AC current collecting circuit, DC voltage testing circuit and D.C. current detecting circuit; Said power panel to be tested links to each other with said LED lamp plate and is said LED lamp plate power supply; Said AC power links to each other with said microcontroller and is said microcontroller power supply; Said input interface all links to each other with said microcontroller to realize input and output respectively with display screen; Said microcontroller links to each other with said AC power through said AC voltage sampling circuit and AC current collecting circuit and exchanges input current and voltage to measure; Said microcontroller links to each other with said LED lamp plate to measure output DC stream through said D.C. current detecting circuit, and said microcontroller links to each other with the output terminal of said power panel to be tested to measure output dc voltage through said DC voltage testing circuit.
2. LED power detecting system as claimed in claim 1 is characterized in that: said microcontroller also is connected with one and exchanges holding circuit, and said interchange holding circuit links to each other with said AC power.
3. LED power detecting system as claimed in claim 1 is characterized in that: said microcontroller also is connected with a memory interface circuit.
4. LED power detecting system as claimed in claim 1 is characterized in that: said microcontroller also is connected with a buzzer alarm circuit.
5. LED power detecting system as claimed in claim 1 is characterized in that: said input interface circuit comprises keystroke interface circuit and/or computer interface circuit.
6. LED power detecting system as claimed in claim 1 is characterized in that: said display screen is a LCD display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220120451 CN202548302U (en) | 2012-03-27 | 2012-03-27 | LED power source testing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220120451 CN202548302U (en) | 2012-03-27 | 2012-03-27 | LED power source testing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202548302U true CN202548302U (en) | 2012-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220120451 Expired - Lifetime CN202548302U (en) | 2012-03-27 | 2012-03-27 | LED power source testing system |
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| CN (1) | CN202548302U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104267358A (en) * | 2014-10-09 | 2015-01-07 | 崧顺电子（深圳）有限公司 | Automatic testing equipment for power supply |
| CN104597412A (en) * | 2014-12-31 | 2015-05-06 | 东莞市沃锐电子有限公司 | LED power testing device |
| CN104597411A (en) * | 2014-12-31 | 2015-05-06 | 东莞市沃锐电子有限公司 | Comprehensive test equipment for power supply |
| CN104730471A (en) * | 2015-04-16 | 2015-06-24 | 顺德职业技术学院 | LED lamp testing circuit |
| CN104730444A (en) * | 2015-04-16 | 2015-06-24 | 顺德职业技术学院 | Multifunctional LED lamp test machine |
| CN104749534A (en) * | 2015-04-16 | 2015-07-01 | 顺德职业技术学院 | LED lamp tester based on PLC control system |
| CN105044515A (en) * | 2015-07-31 | 2015-11-11 | 苏州玄禾物联网科技有限公司 | LED display screen module test system |
| CN114047456A (en) * | 2021-10-18 | 2022-02-15 | 赖云飞 | LED power supply test control circuit |
-
2012
- 2012-03-27 CN CN 201220120451 patent/CN202548302U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104267358A (en) * | 2014-10-09 | 2015-01-07 | 崧顺电子（深圳）有限公司 | Automatic testing equipment for power supply |
| CN104267358B (en) * | 2014-10-09 | 2017-07-07 | 湖南崧顺科技有限公司 | Power supply automatic detecting equipment |
| CN104597412A (en) * | 2014-12-31 | 2015-05-06 | 东莞市沃锐电子有限公司 | LED power testing device |
| CN104597411A (en) * | 2014-12-31 | 2015-05-06 | 东莞市沃锐电子有限公司 | Comprehensive test equipment for power supply |
| CN104730471A (en) * | 2015-04-16 | 2015-06-24 | 顺德职业技术学院 | LED lamp testing circuit |
| CN104730444A (en) * | 2015-04-16 | 2015-06-24 | 顺德职业技术学院 | Multifunctional LED lamp test machine |
| CN104749534A (en) * | 2015-04-16 | 2015-07-01 | 顺德职业技术学院 | LED lamp tester based on PLC control system |
| CN105044515A (en) * | 2015-07-31 | 2015-11-11 | 苏州玄禾物联网科技有限公司 | LED display screen module test system |
| CN114047456A (en) * | 2021-10-18 | 2022-02-15 | 赖云飞 | LED power supply test control circuit |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 518000 Guangdong province Shenzhen city Baoan District street Xixiang Development Zone guwu Indus Taihua Industrial Park building 14A building 4-5 Patentee after: Polytron Technologies Inc, Shenzhen Address before: It Guangming Street Xinmei industrial area industrial zone Shenzhen 518000 Guangdong Province Levin building B building 3 floor Patentee before: Shenzhen Ledfriend Optoelectronics Co., Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |