CN203387721U - LED driving power supply - Google Patents
LED driving power supply Download PDFInfo
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- CN203387721U CN203387721U CN201320309605.XU CN201320309605U CN203387721U CN 203387721 U CN203387721 U CN 203387721U CN 201320309605 U CN201320309605 U CN 201320309605U CN 203387721 U CN203387721 U CN 203387721U
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- light source
- led light
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Abstract
The utility model discloses an LED driving power supply. The LED driving power supply comprises a current source and a first switch unit which is in series connection with an LED light source module, and also comprises a constant current module and a flicker control module. The flicker control module comprises a second switch unit, a trigger unit used for outputting continuous pulse control signals and a charging/discharging unit. The charging/discharging unit enables the reset end of the trigger unit to be reset via charging or discharging, and the second switch unit controls the on-off of the LED light source module via the continuous pulse control signals outputted by the output end of the trigger unit, so that the LED light source module realizes a flicker function. The constant current module comprises a comparison controller which is in series connection between the first switch unit and the LED light source module and plays a part in protecting the LED light source module, and a constant current unit in parallel connection with the LED light source module. The constant current unit and the comparison controller enable a current passing the LED light source module to be constant, thereby effectively protecting the LED light source module from the impact of the current to be damaged.
Description
Technical field
The utility model relates to the LED field, particularly a kind of LED driving power.
Background technology
Now, the application of LED light fixture is more and more extensive, common LED light fixture can not meet people's requirement to illumination in various occasions, the light that some occasion need to be glimmered, but the driving power of LED light fixture does not also have flashing function at present, people still continue to use the conventional lamp with flashing function, and the conventional lamp power consumption is high, light efficiency is low, does not meet the ideal of energy-conserving and environment-protective.And, because flashing function easily causes electric current unstable, when realizing the LED flashing function, realize that constant current output is a thorny problem, the unstable of electric current easily caused damage to LED light source.
Therefore, how to realize that a kind of to make LED light source realize flashing function and effectively protect the LED driving power of LED light source be technical problem urgently to be resolved hurrily in the industry.
The utility model content
Main purpose of the present utility model is to provide a kind of LED driving power, is intended to realize a kind ofly make LED light source realize flashing function and effectively protect the LED driving power of LED light source.
The utility model proposes a kind of LED driving power, for the driving LED light source module, the LED driving power comprises the current source be electrically connected successively, the first switch element, the first switch element is connected with the LED light source module, also comprise constant flow module and flicker control module, the flicker control module comprises the second switch unit, for exporting the trigger element of continuous pulse control signal, charge/discharge unit, wherein the input of second switch unit is connected in the current source output, the output of second switch unit is connected with the input of trigger element, charge/discharge unit is connected with the reset terminal of trigger element, the output of trigger element is connected with the control end of second switch unit, wherein, charge/discharge unit can make the reset terminal of trigger element reset through charge or discharge, the second switch unit is controlled the conducting of LED light source module and opens circuit by the continuous pulse control signal of the output output of trigger element, thereby make the LED light source module realize flashing function, constant flow module comprises and is series between the first switch element and LED light source module and the comparison controller that the LED light source module is shielded, the constant current unit in parallel with the LED light source module, wherein, comparison controller to the electric current that passes through with set electric current and compare and carry out conducting and open-circuit operation.
Preferably, the LED light source module comprises some LED lamp pearls.
Preferably, LED lamp pearl is set to glory LED lamp pearl.
A kind of LED driving power of the utility model, comprise current source, the first switch element, and the first switch element is connected with the LED light source module, also comprises constant flow module and flicker control module.The flicker control module comprises second switch unit, the trigger element for exporting continuous pulse control signal, charge/discharge unit, charge/discharge unit can make the reset terminal of trigger element reset through charge or discharge, the second switch unit is controlled the conducting of LED light source module and opens circuit by the continuous pulse control signal of the output output of trigger element, thereby makes the LED light source module realize flashing function.Constant flow module comprises and is series between the first switch element and LED light source module and the comparison controller that the LED light source module is shielded, the constant current unit in parallel with the LED light source module.Constant current unit and comparison controller can be constant in the electric current of LED light source module, effectively protect the LED light source module avoid rush of current and damage.
The accompanying drawing explanation
The operation principle block diagram of the embodiment that Fig. 1 is a kind of LED driving power of the utility model.
The realization of the utility model purpose, functional characteristics and advantage, in connection with embodiment, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
With reference to Fig. 1, an embodiment of a kind of LED driving power of the present utility model is proposed, for driving LED light source module 300.The LED driving power comprises current source 100, the first switch element 200 be electrically connected successively, also comprises constant flow module and flicker control module.Wherein, the first switch element 200 is connected with LED light source module 300.
The flicker control module comprises second switch unit 401, for exporting the trigger element 402 of continuous pulse control signal, charge/discharge unit 403, wherein the input of second switch unit 401 is connected in current source 100 outputs, the output of second switch unit 401 is connected with the input of trigger element 402, charge/discharge unit 403 is connected with the reset terminal of trigger element 402, the output of trigger element 402 is connected with the control end of second switch unit 401, wherein, charge/discharge unit 403 can make the reset terminal of trigger element 402 reset through charge or discharge, second switch unit 401 is controlled the conducting of LED light source module 300 and opens circuit by the continuous pulse control signal of the output output of trigger element 402, thereby make LED light source module 300 realize flashing function.
Constant flow module comprises and is series between the first switch element 200 and LED light source module 300 and the comparison controller 501 that LED light source module 300 is shielded, the constant current unit 502 in parallel with LED light source module 300.Constant current unit 502 can be constant in the electric current of LED light source module 300, effectively protects LED light source module 300 avoid rush of current and damage.Wherein, 501 pairs of electric currents that pass through of comparison controller with set electric current and compare and carry out conducting and open-circuit operation.When the electric current passed through is less than the setting electric current, 501 holding circuit conductings of comparison controller, 300 normal operations of LED light source module; And, when the electric current passed through is greater than the setting electric current, 501 of comparison controllers make LED light source module 300 avoid the impact of large electric current circuit breaker, improve the stability of LED driving power, effectively extended the useful life of LED light source module 300.
LED light source module 300 comprises some LED lamp pearls.LED lamp pearl can be set to white light LEDs or glory LED lamp pearl, due to the function with flicker, can realize that the white light LEDs of flicker or the glory LED of flicker are to enlarge range of application.
The foregoing is only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure transformation that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present utility model.
Claims (3)
1. a LED driving power, for the driving LED light source module, described LED driving power comprises the current source be electrically connected successively, the first switch element, described the first switch element is connected with described LED light source module, it is characterized in that, also comprise constant flow module and flicker control module, described flicker control module comprises the second switch unit, for exporting the trigger element of continuous pulse control signal, charge/discharge unit, the input of wherein said second switch unit is connected in described current source output, the output of described second switch unit is connected with the input of described trigger element, described charge/discharge unit is connected with the reset terminal of described trigger element, the output of described trigger element is connected with the control end of described second switch unit, wherein, described charge/discharge unit can make the reset terminal of described trigger element reset through charge or discharge, described second switch unit is controlled the conducting of described LED light source module and opens circuit by the continuous pulse control signal of the output output of described trigger element, thereby make described LED light source module realize flashing function, described constant flow module comprises and is series between described the first switch element and described LED light source module and the comparison controller that described LED light source module is shielded, the constant current unit in parallel with described LED light source module, wherein, described comparison controller to the electric current that passes through with set electric current and compare and carry out conducting and open-circuit operation.
2. a kind of LED driving power according to claim 1, is characterized in that, described LED light source module comprises some LED lamp pearls.
3. a kind of LED driving power according to claim 2, is characterized in that, described LED lamp pearl is set to glory LED lamp pearl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320309605.XU CN203387721U (en) | 2013-05-31 | 2013-05-31 | LED driving power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320309605.XU CN203387721U (en) | 2013-05-31 | 2013-05-31 | LED driving power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203387721U true CN203387721U (en) | 2014-01-08 |
Family
ID=49876166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320309605.XU Expired - Fee Related CN203387721U (en) | 2013-05-31 | 2013-05-31 | LED driving power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203387721U (en) |
-
2013
- 2013-05-31 CN CN201320309605.XU patent/CN203387721U/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: 20140108 Termination date: 20160531 |