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Intelligent light-regulating LED power supply device based on DALI

A LED power supply and intelligent dimming technology, applied in light sources, electric light sources, lighting devices, etc., can solve the problems that the dimming signal is easily interfered by external factors, cannot feedback LED lamp information, and the output current accuracy is poor, etc., to achieve user interface Friendly, simple and easy design, precise and reliable control effects

Inactive Publication Date: 2014-05-07
SHENZHEN MEIKAI ELECTRONICS
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  • Abstract
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Problems solved by technology

[0003] The dimming of LED power supply in the current technology is mainly 1-10V analog dimming, PWM dimming and thyristor dimming. These types of dimming methods mainly have the following disadvantages: 1. Audio noise is easy to be generated during dimming; 2. The accuracy of dimming is poor, that is, the accuracy of output current is poor; 3. The dimming effect is poor, and the LED is easy to flicker; 4. The anti-interference ability is poor, and the dimming signal is easily interfered by external factors; information

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  • Intelligent light-regulating LED power supply device based on DALI
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  • Intelligent light-regulating LED power supply device based on DALI

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] The present invention discloses a DALI-based intelligent dimming LED power supply device, referring to figure 1 Shown is a block diagram of a specific embodiment of the present invention, the device includes a signal controller 10 , a DALI master 20 , a DALI slave 30 , an LED driving power supply 40 and an LED lamp 50 .

[0024] The signal controller 10 is connected to the DALI host 20 through wired communication or wireless communication. In a specific application, the signal controller 10 can be connected to a plurality of DALI hosts 20. In this embodiment, refer to figure 2 As shown, the signal controller 10 is connected to four DALI masters 20, which are respectively DALI master 20a, DALI master 20b, DALI master 20c, and DALI master 20d. The DALI master 20 can also be connected to multiple DALI slaves 30. In this embodiment, the DALI master...

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Abstract

The invention discloses an intelligent light-regulating LED power supply device based on a DALI, and relates to the technical field of LED light regulation. The device comprises a signal controller, a DALI host machine, a DALI slave machine, an LED driving power supply and an LED lamp connected onto the LED driving power supply. The DALI host machine is used for receiving control information sent by the signal controller and sending the information after processing the information. The DALI slave machine is sued for receiving a signal sent by the DALI host machine and decoding so that the LED driving power supply is controlled and thus brightness of the LED lamp is controlled. Beneficial effects of the device are that: the device is accurate and reliable in control; the DALI is a digital signal which is different from an analog signal, non-disturbance control can be realized by the digital signal without distortion of the control signal due to long-distance voltage drop so that a DALI digital signal control line is not interfered even the DALI digital signal control line and a strong electric line are laid in the same line pipe, and thus the device is accurate and reliable in light regulation.

Description

【Technical field】 [0001] The invention relates to the technical field of dimming of LEDs, in particular to a DALI-based intelligent dimming LED power supply device. 【Background technique】 [0002] With the improvement of the quality of life, more and more people are interested in lighting. Now there are only more requirements for modern lighting equipment that improves lighting by turning on the switch, that is, modern lighting equipment is developed to create various lighting moods according to the use of the indoor space or automatically adjust according to the illuminance of the surrounding environment. The ability to adjust lighting. [0003] The dimming of LED power supply in the current technology is mainly 1-10V analog dimming, PWM dimming and thyristor dimming. These types of dimming methods mainly have the following disadvantages: 1. Audio noise is easy to be generated during dimming; 2. The accuracy of dimming is poor, that is, the accuracy of output current is p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02
CPCY02B20/40
Inventor 赖良海包金长曾兴华
Owner SHENZHEN MEIKAI ELECTRONICS
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