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LED lighting control device

A technology of LED lighting and control devices, applied in lighting devices, energy-saving control technology, lamp circuit layout, etc., can solve the problems of lack of intelligence, poor dimming flexibility, LED output brightness adjustment, etc., to improve comfort and increase power The effect of improving conversion efficiency and using efficiency

Inactive Publication Date: 2011-01-26
HUAZHONG UNIV OF SCI & TECH
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AI Technical Summary

Problems solved by technology

[0003] The current LED driver generally adopts the constant current control method, but there are shortcomings of low power conversion efficiency and poor dimming flexibility, so that the energy-saving advantages of LEDs cannot be fully utilized.
In addition, the current LED drive system lacks intelligence, and the output brightness of the LED cannot be adjusted according to the needs of the environment

Method used

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Embodiment Construction

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific examples described here are only used to explain the present invention, not to limit the present invention.

[0018] refer to figure 1 , the present invention includes an AC / DC conversion module 1 connected to an external power supply, a constant current drive module 2, an intelligent dimming unit 3 and an environmental information collection unit 4.

[0019] The AC / DC conversion module 1 converts the mains power into a constant-voltage DC power supply, and implements various circuits, such as a flyback conversion circuit and a forward conversion circuit, but its power conversion efficiency is low. The key reason is that there are defects in the circuit topology. The preferred LLC half-bridge resonant conversion circuit of the present invention realizes constant voltage output, such as image 3 As show...

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Abstract

The invention provides an LED lighting control device which comprises an LED luminaire link, a power supply unit, an environment information collecting unit and an intelligent dimmer unit, wherein the intelligent dimmer unit generates LED dimmer instructions to control the power supply unit to provide power to the LED luminaire link according to environment information. Specifically, the instructions are generated in the following three modes of: mode 1. generating instructions according to user operation information; mode 2. judging whether users exist in a lighting area according to infrared detection information of a human body, and generating instructions according to the judging result; mode 3. carrying out statistic analysis to historical operation information of a user and corresponding area lighting information during operation, inquiring the habitual operation of a user according to the current area lighting information in the statistic analysis result, and thereby generating instructions. The invention fully considers the requirements of a user, provides a diverse and humanized control mode, realizes intelligent dimmer, and improves the electrical energy conversion efficiency for household LED lighting.

Description

technical field [0001] The invention belongs to the field of power electronics technology and lighting, and in particular relates to a light-emitting diode (LED) lighting control device, which is suitable for home lighting places and meets the needs of high efficiency, energy saving and intelligent light adjustment. Background technique: [0002] LED lighting is a new generation of light source. Compared with traditional lighting sources such as incandescent lamps and fluorescent lamps, it has many advantages such as high electro-optical conversion efficiency, long service life, short start-up time, firm structure, no heavy metals such as mercury and lead, and no ultraviolet rays. . [0003] The current LED driver generally adopts the constant current control method, but it has the disadvantages of low power conversion efficiency and poor dimming flexibility, so that the energy-saving advantages of LEDs cannot be fully utilized. In addition, the current LED drive system lac...

Claims

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Application Information

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IPC IPC(8): H05B37/02
CPCY02B20/48Y02B20/44Y02B20/40
Inventor 李叶松杨运海
Owner HUAZHONG UNIV OF SCI & TECH
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