CN204349445U - A kind of LED drives anti whip device - Google Patents
A kind of LED drives anti whip device Download PDFInfo
- Publication number
- CN204349445U CN204349445U CN201420807998.1U CN201420807998U CN204349445U CN 204349445 U CN204349445 U CN 204349445U CN 201420807998 U CN201420807998 U CN 201420807998U CN 204349445 U CN204349445 U CN 204349445U
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- China
- Prior art keywords
- utility
- model
- power input
- resistance
- led
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of LED and drive anti whip device, comprise drive circuit, power input, resistance, one end of described drive circuit is provided with power input, and described resistance is connected with power input.The utility model is provided with the novel impact circuit that disappears, namely on existing hf switching power supply, make impulse current greatly be reduced to harmless degree, the energising that effectively can solve all kinds of high frequency switch power damages problem, can not affect the use of LED drive device.
Description
Technical field
The utility model relates to protective device field, is specially a kind of LED and drives anti whip device.
Background technology
As everyone knows, LED drive device is Switching Power Supply, is made up of electronic device.The moment switched on power, because circuit has the existence of filter capacitor, cause the moment switched on power to produce a ultrahigh current being several times as much as normal electrical flow valuve and impact, this impact very easily causes following several damage; 1 burns fuse, and 2 burn circuit board Copper Foil, burn switching power tube etc.Power supply driver is caused to damage.
Utility model content
The technical problem that the utility model solves is to provide a kind of LED to drive anti whip device, to solve the problem.
The technical problem that the utility model solves realizes by the following technical solutions:
A kind of LED drives anti whip device, and comprise drive circuit, power input, resistance, one end of described drive circuit is provided with power input, and described resistance is connected with power input.
As preferably, described power input seals in resistance, effectively limit impact (surge) current value in the moment switched on power, in several seconds, along with this resistance temperature rises, resistance drops to minimum, does not affect the normal work of circuit.
The utility model is provided with the novel impact circuit that disappears, namely on existing hf switching power supply, make impulse current greatly be reduced to harmless degree, the energising that effectively can solve all kinds of high frequency switch power damages problem, can not affect the use of LED drive device.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
In order to make actualizing technology means of the present utility model, creation characteristic, reach object and effect is easy to understand, below in conjunction with concrete diagram, set forth the utility model further.
As shown in Figure 1, a kind of LED drives anti whip device, and comprise drive circuit 1, power input 2, resistance 3, one end of described drive circuit 1 is provided with power input 2, and described resistance 3 is connected with power input 2.
As preferably, described power input 2 seals in resistance 3, effectively limit impact (surge) current value in the moment switched on power, in several seconds, along with this resistance 3 temperature rises, resistance drops to minimum, does not affect the normal work of circuit.
The utility model is provided with the novel impact circuit that disappears, namely on existing hf switching power supply, make impulse current greatly be reduced to harmless degree, the energising that effectively can solve all kinds of high frequency switch power damages problem, can not affect the use of LED drive device.
More than show and describe general principle of the present utility model and 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; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.Claimed scope of the present utility model is defined by appending claims and equivalent thereof.
Claims (1)
1. LED drives an anti whip device, and comprise drive circuit, power input, resistance, it is characterized in that: one end of described drive circuit is provided with power input, described resistance is connected with power input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420807998.1U CN204349445U (en) | 2014-12-19 | 2014-12-19 | A kind of LED drives anti whip device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420807998.1U CN204349445U (en) | 2014-12-19 | 2014-12-19 | A kind of LED drives anti whip device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204349445U true CN204349445U (en) | 2015-05-20 |
Family
ID=53232688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420807998.1U Expired - Fee Related CN204349445U (en) | 2014-12-19 | 2014-12-19 | A kind of LED drives anti whip device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204349445U (en) |
-
2014
- 2014-12-19 CN CN201420807998.1U patent/CN204349445U/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: 20150520 Termination date: 20151219 |
|
| EXPY | Termination of patent right or utility model |