CN202750274U - LED (Light Emitting Diode) dimmer switch power supply system - Google Patents
LED (Light Emitting Diode) dimmer switch power supply system Download PDFInfo
- Publication number
- CN202750274U CN202750274U CN 201220233907 CN201220233907U CN202750274U CN 202750274 U CN202750274 U CN 202750274U CN 201220233907 CN201220233907 CN 201220233907 CN 201220233907 U CN201220233907 U CN 201220233907U CN 202750274 U CN202750274 U CN 202750274U
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- circuit
- power supply
- led
- switch power
- supply system
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- Expired - Fee Related
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Abstract
An LED (Light Emitting Diode) dimmer switch power supply system 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 an output protection circuit which enables the switch power supply to stop outputting a voltage signal to protect an LED load if an output voltage or output current abnormity happens. According to the utility model, the luminance of an 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 power-supply system of opening the light, and is specifically related to a kind of LED tunable optical power-supply system of opening the light.
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 the reliability power-supply system of opening the light high, applied widely.
The utility model is achieved through the following technical solutions: a kind of LED tunable optical power-supply system of opening the light, 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.The described LED tunable optical power-supply system of opening the light also comprises and is arranged at the output protection circuit that is connected between secondary commutation circuit and the optocoupler feedback circuit; this output protection circuit is for the protection of the LED load; when the output voltage of Switching Power Supply or output current are unusual; output protection circuit just can output correlation signal; and by the optocoupler feedback circuit signal is passed to the chip controls circuit; the chip controls circuit acts accordingly, and makes Switching Power Supply stop output voltage signal with protection LED load.
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 tunable optical power-supply system of opening the light, 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 ".
The described LED tunable optical power-supply system of opening the light also comprises and is arranged at the output protection circuit that is connected between secondary commutation circuit and the optocoupler feedback circuit; this output protection circuit is for the protection of the LED load; when the output voltage of Switching Power Supply or output current are unusual; output protection circuit just can output correlation signal; and by the optocoupler feedback circuit signal is passed to the chip controls circuit; the chip controls circuit acts accordingly, and makes Switching Power Supply stop output voltage signal with protection LED load.
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 tunable optical power-supply system of opening the light, 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; The described LED desk lamp with dimmer switch power-supply system of opening the light also comprises and is arranged at the output protection circuit that is connected between secondary commutation circuit and the optocoupler feedback circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220233907 CN202750274U (en) | 2012-05-23 | 2012-05-23 | LED (Light Emitting Diode) dimmer switch power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220233907 CN202750274U (en) | 2012-05-23 | 2012-05-23 | LED (Light Emitting Diode) dimmer switch power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202750274U true CN202750274U (en) | 2013-02-20 |
Family
ID=47709619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220233907 Expired - Fee Related CN202750274U (en) | 2012-05-23 | 2012-05-23 | LED (Light Emitting Diode) dimmer switch power supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202750274U (en) |
-
2012
- 2012-05-23 CN CN 201220233907 patent/CN202750274U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20130523 |