CN202514126U - LED protection system - Google Patents
LED protection system Download PDFInfo
- Publication number
- CN202514126U CN202514126U CN2012200952487U CN201220095248U CN202514126U CN 202514126 U CN202514126 U CN 202514126U CN 2012200952487 U CN2012200952487 U CN 2012200952487U CN 201220095248 U CN201220095248 U CN 201220095248U CN 202514126 U CN202514126 U CN 202514126U
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- Prior art keywords
- led
- output unit
- unit
- protection system
- driver element
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- Expired - Fee Related
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Abstract
An LED protection system comprises an LED driving unit and an output unit. The driving unit is connected with the output unit and also comprises a detecting unit used for detecting the current of the output unit and a control unit used for receiving the signal of the detecting unit and controlling the output voltage of the output unit, and the output unit comprises a plurality of LEDs which are in parallel connections with each other. By employing the above measures, the LEDs can be prevented from working at a larger current, the service lives of the LEDs are prolonged, and the current can be prevented from being overlarge to burn out the LEDs.
Description
Technical field
The utility model relates to lighting technical field, especially a kind of LED protection system.
Background technology
Because LED has many good qualities, just among increasing entering daily life, it is very huge that its use amount becomes now; But because LED is the device of electric current responsive type; So in use, if spread of voltage or electric current are bigger, will influence the useful life of LED; If electric current is excessive, will burn the LED device.
The utility model content
The technical problem that the utility model mainly solves provides a kind of LED protection system, can prevent effectively that the excessive LED of causing of LED electric current from burning, and prolongs the useful life of LED.
For solving the problems of the technologies described above; The technical scheme that the utility model adopts is: a kind of LED protection system; It is characterized in that comprise LED driver element, output unit, said driver element is connected with output unit; Also comprise the detecting unit that is used to detect the output unit electric current, the control unit that is used to receive the detecting unit signal and controls the output unit output voltage.
In preferred embodiment of the utility model, said output unit comprises the LED of a plurality of parallel connections.
In preferred embodiment of the utility model, said driver element comprises rectification circuit and filter circuit, and said rectification circuit is connected with filter circuit.
After implementing above technical measures, have following technique effect:
The LED protection system of the utility model can prevent effectively that LED is operated in the bigger state of electric current, prolongs the useful life of LED, can prevent that also the excessive LED of causing of electric current from burning.
Description of drawings
Fig. 1 is the sketch map of the utility model LED protection system structured flowchart.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiment of the utility model is set forth in detail, thereby the protection range of the utility model is made more explicit defining so that advantage of the utility model and characteristic can be easier to it will be appreciated by those skilled in the art that.
The utility model embodiment comprises:
As shown in Figure 1, a kind of LED protection system comprises LED driver element 1, detecting unit 2, control unit 3, output unit 4; Said driver element 1 is connected with output unit 4, and said output unit 4 is connected with detecting unit 2, and said detecting unit 2 is connected with control unit 3; Said control unit 3 and driver element 1, said output unit 4 comprises a plurality of LED, said LED is parallel with one another; Said driver element 1 comprises rectification circuit and filter circuit, and said rectification circuit is connected with filter circuit.
Said detecting unit 2 detects the electric current of output unit 4; The data and the fiducial value that detect are compared, form a difference, difference is transferred to control unit 3; Control unit 3 is regulated the output of driver element 1 according to the size of difference; If electric current is excessive, then reduces the output voltage of driver element 1, thereby reduce the electric current of output unit; If electric current is less, then strengthens the output voltage of driver element 1, thereby increase the electric current of output unit.When problem took place one or more LED, system can regulate the output voltage of drive circuit according to the LED that reality inserts.
The above is merely the embodiment of the utility model; Be not thus the restriction the utility model claim; Every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the utility model.
Claims (3)
1. LED protection system; It is characterized in that; Comprise driver element, output unit; Said driver element is connected with output unit, and said LED protection system also comprises the detecting unit that is used to detect the output unit electric current, and the control unit that is used to receive the detecting unit signal and controls the output unit output voltage.
2. LED protection system according to claim 1 is characterized in that said output unit comprises the LED of a plurality of parallel connections.
3. LED protection system according to claim 1 is characterized in that said driver element comprises rectification circuit and filter circuit, and said rectification circuit is connected with filter circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200952487U CN202514126U (en) | 2012-03-14 | 2012-03-14 | LED protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200952487U CN202514126U (en) | 2012-03-14 | 2012-03-14 | LED protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202514126U true CN202514126U (en) | 2012-10-31 |
Family
ID=47066575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200952487U Expired - Fee Related CN202514126U (en) | 2012-03-14 | 2012-03-14 | LED protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202514126U (en) |
-
2012
- 2012-03-14 CN CN2012200952487U patent/CN202514126U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20180314 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |