CN202721885U - LED drive power aging test load - Google Patents
LED drive power aging test load Download PDFInfo
- Publication number
- CN202721885U CN202721885U CN 201220263801 CN201220263801U CN202721885U CN 202721885 U CN202721885 U CN 202721885U CN 201220263801 CN201220263801 CN 201220263801 CN 201220263801 U CN201220263801 U CN 201220263801U CN 202721885 U CN202721885 U CN 202721885U
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- anode
- spliced eye
- insertion hole
- driving power
- negative electrode
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- 238000012360 testing method Methods 0.000 title claims abstract description 21
- 230000032683 aging Effects 0.000 title abstract description 9
- 238000003780 insertion Methods 0.000 abstract 13
- 230000037431 insertion Effects 0.000 abstract 13
- 239000004568 cement Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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Abstract
The utility model discloses an LED drive power aging test load which comprises a connector socket which is provided with at least two groups of insertion holes. Each group of insertion holes comprises corresponding cathode insertion hole and anode insertion hole. Adjacent cathode insertion holes are in electric connection. A diode is connected between adjacent anode insertion holes. All diodes are in series connection. In one group of insertion holes, a connector plug board is arranged between the cathode insertion hole and the anode insertion hole to enable the cathode insertion hole and the anode insertion hole in electric connection. The cathode insertion hole is connected with an LED drive power aging test circuit. A connection circuit between a pair of adjacent anode insertion holes is connected with the LED drive power aging test circuit. According to output voltage of a power supply, the number of the diodes is determined, then an plug position of the connector plug board is adjusted to change the number of the diodes which are connected to the circuit, the working state of an LED is accurately simulated, and the cost of the circuit is reduced.
Description
Technical field
The utility model relates to a kind of dummy load, relates in particular to a kind of LED dummy load for test LED driving power aging performance.
Background technology
LED is widely used in illumination and field of backlights, its driving power is one of core component of product, the quality of driving power is the key of product success or failure, the LED driving power all needs to do burn-in test to guarantee product quality when batch production, at present, the method for LED driving power burn-in test has two kinds: a kind of is as load aging with client's light fixture; The 2nd, adopt dummy load, such as cement resistor; Client's light fixture is very high as the aged load cost, and finished product can't be sold again after aging, and cost is very large, general enterprise is difficult to bear, the cement resistor low price, but owing to be pure resistive, can't simulate the real characteristic of LED work, test result is not accurate enough.
The utility model content
For the deficiencies in the prior art, the purpose of this utility model is intended to, and the load of a kind of LED driving power burn-in test is provided, and it can accurately monitor the ageing state of LED driving power, accurately simulates the operating state of LED.
For solving the problems of the technologies described above, the technical solution of the utility model is: the load of a kind of LED driving power burn-in test, comprise connector body, described connector body is provided with negative electrode spliced eye and at least two anode spliced eyes, be connected with diode between the adjacent described anode spliced eye, all described diode series connection; Also comprise the selection control that an end is connected with described negative electrode spliced eye and the other end is connected with one of them described anode spliced eye.
As a kind of preferred technical scheme, described connector body is provided with the negative electrode spliced eye consistent with described anode spliced eye number, and adjacent described negative electrode spliced eye is electrically connected.
As a kind of preferred technical scheme, described selection control connects plate for conduction.
As a kind of preferred technical scheme, described connector body is provided with 30 anode spliced eyes.
As a kind of preferred technical scheme, described diode is fast diode.
Owing to adopted technique scheme, the load of a kind of LED driving power burn-in test comprises connector body, and described connector body is provided with negative electrode spliced eye and at least two anode spliced eyes, be connected with diode between the adjacent described anode spliced eye, all described diode series connection; Also comprise the selection control that an end is connected with described negative electrode spliced eye and the other end is connected with one of them described anode spliced eye; Determine a number of diode according to the output voltage of power supply, then the link position of selection control and anode spliced eye changes the number of the diode of place in circuit, accurately simulates the operating state of LED, greatly reduces circuit cost.
Description of drawings
Accompanying drawing 1 is the circuit theory diagrams of the utility model embodiment;
Among the figure: the 1-connector body; 21-negative electrode spliced eye; 22-anode spliced eye.
Embodiment
Below in conjunction with drawings and Examples, further set forth the utility model.In the following detailed description, only by the mode of explanation some example embodiment of the present utility model has been described.Undoubtedly, those of ordinary skill in the art can recognize, in the situation that does not depart from spirit and scope of the present utility model, can revise described embodiment with various mode.Therefore, accompanying drawing is illustrative with being described in essence, rather than is used for the protection range of restriction claim.
As shown in drawings, the load of a kind of LED driving power burn-in test, comprise connector body 1, described connector body 1 is provided with negative electrode spliced eye 21 and at least two anode spliced eyes 22, in the present embodiment, described connector body 1 is provided with the negative electrode spliced eye 21 consistent with described anode spliced eye 22 numbers, connector body 1 is divided into three split sockets, each socket is provided with ten antianode spliced eyes 22 and negative electrode spliced eye 21, so, described connector body 1 is provided with 30 antianode spliced eyes 22 and negative electrode spliced eye 21, adjacent described negative electrode spliced eye 21 is electrically connected, the circuit global design is convenient in this design, is convenient to the connection that anode spliced eye 22 is connected with the negative electrode spliced eye; Be connected with diode between the adjacent described anode spliced eye 22, described diode is fast diode, all described diode series connection; Also comprise the selection control that an end is connected with described negative electrode spliced eye 21 and the other end is connected with one of them described anode spliced eye 22, described selection control connects plate for conduction.Described negative electrode spliced eye 21 is connected with LED driving power burn in test circuit, and diode series circuit is connected with LED driving power burn in test circuit, and this tie point can be positioned at any position of diode series circuit.
Certainly, also a negative electrode spliced eye 21 can only be set, a plurality of anode spliced eyes 22 are set, selection control adopts two ends with the wire of connection-peg, one of them connection-peg is connected with negative electrode spliced eye 21, changes the number that is linked into the fast diode in the circuit by the link position that changes another connection-peg and anode spliced eye 22.
LED is actual to be exactly light-emitting diode, and fast diode is low price not only, and can simulate the operating characteristic of LED.According to VF=0.85～0.88V of specifications FR107, we can determine according to the output voltage of power supply a number of fast diode.Be output as 17V such as power supply, then a number of fast diode is 17/0.85=20pcs.
The LED driving power is constant-current source, and the precision of current constant is extremely important.State when recognizing that exactly the LED driving power is aging can increase the monitoring alarm function.Be under the normal operating conditions, the white lamp U1 on the LED driving power burn in test circuit is for opening, and red light U2 closes; When the electric current of power supply output exceeded specification, then white lamp U1 closed, and red light U2 opens.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1.LED the load of driving power burn-in test is characterized in that: comprise connector body, described connector body is provided with negative electrode spliced eye and at least two anode spliced eyes, is connected with diode between the adjacent described anode spliced eye, all described diode series connection; Also comprise the selection control that an end is connected with described negative electrode spliced eye and the other end is connected with one of them described anode spliced eye.
2. as claimed in claim 1 LED driving power burn-in test load is characterized in that: described connector body is provided with the negative electrode spliced eye consistent with described anode spliced eye number, and adjacent described negative electrode spliced eye is electrically connected.
3. as claimed in claim 2 LED driving power burn-in test load is characterized in that: described selection control connects plate for conduction.
4. as claimed in claim 1 LED driving power burn-in test load is characterized in that: described connector body is provided with 30 anode spliced eyes.
5. such as the load of the described LED driving power of the arbitrary claim of claim 1 to 4 burn-in test, it is characterized in that: described diode is fast diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220263801 CN202721885U (en) | 2012-06-05 | 2012-06-05 | LED drive power aging test load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220263801 CN202721885U (en) | 2012-06-05 | 2012-06-05 | LED drive power aging test load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202721885U true CN202721885U (en) | 2013-02-06 |
Family
ID=47623685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220263801 Expired - Fee Related CN202721885U (en) | 2012-06-05 | 2012-06-05 | LED drive power aging test load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202721885U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122506A (en) * | 2013-04-25 | 2014-10-29 | 深圳市海洋王照明工程有限公司 | LED lamp driving power test method |
| CN112965003A (en) * | 2021-02-01 | 2021-06-15 | 佛山市博顿光电科技有限公司 | Power supply aging load circuit |
-
2012
- 2012-06-05 CN CN 201220263801 patent/CN202721885U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122506A (en) * | 2013-04-25 | 2014-10-29 | 深圳市海洋王照明工程有限公司 | LED lamp driving power test method |
| CN104122506B (en) * | 2013-04-25 | 2016-12-28 | 深圳市海洋王照明工程有限公司 | A kind of LED drives power supply test method |
| CN112965003A (en) * | 2021-02-01 | 2021-06-15 | 佛山市博顿光电科技有限公司 | Power supply aging load circuit |
| CN112965003B (en) * | 2021-02-01 | 2024-04-30 | 佛山市博顿光电科技有限公司 | Power supply aging load circuit |
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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: 20130206 Termination date: 20130605 |