CN202750276U - LED (Light Emitting Diode) dimmer switch power supply apparatus - Google Patents
LED (Light Emitting Diode) dimmer switch power supply apparatus Download PDFInfo
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- CN202750276U CN202750276U CN 201220233924 CN201220233924U CN202750276U CN 202750276 U CN202750276 U CN 202750276U CN 201220233924 CN201220233924 CN 201220233924 CN 201220233924 U CN201220233924 U CN 201220233924U CN 202750276 U CN202750276 U CN 202750276U
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- switch power
- switching power
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Abstract
An LED (Light Emitting Diode) dimmer switch power supply apparatus comprises a silicon-controlled-rectifier dimmer and a switch power supply connected with the silicon-controlled-rectifier dimmer. The switch power supply is provided with a luminance regulation sampling circuit which enables the switch power supply to regulate the luminance of an LED lamp in an approximately linear manner. According to the utility model, the luminance of the LED lamp is regulated in an approximately linear manner, so that the problem of flickers during luminance regulation is solved, providing advantages of high cost performance and high reliability.
Description
Technical field
The utility model relates to a kind of switching power unit, is specifically related to a kind of LED dimming switch power supply device.
Background technology
LED (Light Emitting Diode, light-emitting diode) has the advantages such as environmental protection, energy-conservation, life-span length, high brightness.In recent years, the LED light fixture is constantly promoted and is applied in the normal lighting field.At present, LED dimming power source commonly used changes not obvious when regulating the brightness of lamp or has greatly changed suddenly during to a certain specific position during at brightness adjusting, and the phenomenon of significantly glimmering also can appear in LED when brightness will change.Therefore, when can not conforming variation, common LED driving power to the requirement of brightness, is necessary to provide a kind of energy approximately linear ground to adjust the supply unit of LED lamp brightness.
The utility model content
For overcoming the problem of the deficiencies in the prior art and existence, but the utility model provides a kind of approximately linear ground adjusting brightness of LED lamps and reliability switching power unit high, applied widely.
The utility model is achieved through the following technical solutions: a kind of LED dimming switch power supply device, comprise controllable silicon dimmer and the Switching Power Supply that is connected with described controllable silicon dimmer, described Switching Power Supply comprises insurance circuit, EMI filter circuit, elementary current rectifying and wave filtering circuit, transformer, the secondary commutation filter circuit that connects successively; Described secondary commutation filter circuit is connected with the LED load, also is connected with sample circuit, voltage stabilizing loop and optocoupler feedback circuit behind the secondary commutation filter circuit in turn; Described transformer also is connected with switching circuit, is connected with the chip controls circuit between switching circuit and optocoupler feedback circuit, and described chip controls circuit also is connected with the optocoupler feedback circuit.Described Switching Power Supply is connected with the brightness regulation sample circuit between elementary current rectifying and wave filtering circuit and chip controls circuit, this brightness regulation sample circuit is so that this switching power unit can approximately linear ground be adjusted the brightness of LED lamp.
The utility model is regulated the brightness of LED lamp and can solve the problem of the flicker that occurs when light modulation but have approximately linear ground compared with the prior art, has simultaneously the advantages such as cost performance is high, reliability is strong.
Description of drawings
Fig. 1 is theory diagram of the present utility model.
Embodiment
Understanding for the ease of those skilled in the art is described in further detail the utility model below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, a kind of LED dimming switch power supply device, comprise controllable silicon dimmer and the Switching Power Supply that is connected with described controllable silicon dimmer, described Switching Power Supply comprises insurance circuit, EMI filter circuit, elementary current rectifying and wave filtering circuit, transformer, the secondary commutation filter circuit that connects successively; Described secondary commutation filter circuit is connected with the LED load, also is connected with sample circuit, voltage stabilizing loop and optocoupler feedback circuit behind the secondary commutation filter circuit in turn; Described transformer also is connected with switching circuit, is connected with the chip controls circuit between switching circuit and optocoupler feedback circuit, and described chip controls circuit also is connected with the optocoupler feedback circuit.EMI is the abbreviation of Electro-Magnetic Interference, means the meaning of " electromagnetic interference ".
Described Switching Power Supply is connected with the brightness regulation sample circuit between elementary current rectifying and wave filtering circuit and chip controls circuit, this brightness regulation sample circuit is so that this switching power unit can approximately linear ground be adjusted the brightness of LED lamp.
The utility model is by being provided with the brightness regulation sample circuit, so that in adjusting brightness of LED lamps, solved the flicker problem that in the past when light modulation, occurred, and also regulate the brightness of LED lamp so that when light modulation, can realize approximately linear ground.
Above-described embodiment is better implementation of the present utility model, is not to be to restriction of the present utility model, and under the prerequisite that does not break away from inventive concept of the present utility model, any apparent replacement is all within protection range of the present utility model.
Claims (1)
1. LED dimming switch power supply device, comprise controllable silicon dimmer and the Switching Power Supply that is connected with described controllable silicon dimmer, it is characterized in that: described Switching Power Supply comprises insurance circuit, EMI filter circuit, elementary current rectifying and wave filtering circuit, transformer, the secondary commutation filter circuit that connects successively; Described secondary commutation filter circuit is connected with the LED load, also is connected with sample circuit, voltage stabilizing loop and optocoupler feedback circuit behind the secondary commutation filter circuit in turn; Described transformer also is connected with switching circuit, is connected with the chip controls circuit between switching circuit and optocoupler feedback circuit, and described chip controls circuit also is connected with the optocoupler feedback circuit; Described Switching Power Supply is connected with the brightness regulation sample circuit between elementary current rectifying and wave filtering circuit and chip controls circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220233924 CN202750276U (en) | 2012-05-23 | 2012-05-23 | LED (Light Emitting Diode) dimmer switch power supply apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220233924 CN202750276U (en) | 2012-05-23 | 2012-05-23 | LED (Light Emitting Diode) dimmer switch power supply apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202750276U true CN202750276U (en) | 2013-02-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220233924 Expired - Fee Related CN202750276U (en) | 2012-05-23 | 2012-05-23 | LED (Light Emitting Diode) dimmer switch power supply apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202750276U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162280A (en) * | 2013-03-21 | 2013-06-19 | 东莞市荣文照明电气有限公司 | Integrated light-emitting diode (LED) street lamp intelligent control and line protective device |
-
2012
- 2012-05-23 CN CN 201220233924 patent/CN202750276U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162280A (en) * | 2013-03-21 | 2013-06-19 | 东莞市荣文照明电气有限公司 | Integrated light-emitting diode (LED) street lamp intelligent control and line protective device |
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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: 20130220 Termination date: 20130523 |