Light-adjusting device and method of LED illuminating lamp

A technology of LED lighting and dimming devices, which is applied in the direction of lighting devices, lamp circuit layout, light sources, etc., and can solve problems such as a large number of remote controls, time requirements for switching operations, and troublesome management

Inactive Publication Date: 2013-09-04
HUNAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The LED lighting control circuit is equipped with a remote control receiving device, and the LED lighting can be dimmed stepwise or steplessly through the remote control. The disadvantage is that an LED lighting needs to be equipped with a remote control, resulting in a large number of remote controls. , troublesome management, high cost
But this method can only provide 4 levels of adjustable brightness of LED lighting, and the switch action has a time requirement

Method used

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  • Light-adjusting device and method of LED illuminating lamp
  • Light-adjusting device and method of LED illuminating lamp
  • Light-adjusting device and method of LED illuminating lamp

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Embodiment Construction

[0040] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0041] Such as figure 1 The structure block diagram of the present invention shown is composed of a single live wire setting unit 100 for controlling the brightness of LED lighting lamps, a brightness control and adjusting unit 200 for LED lighting lamps, and a driving unit 300 for controlling the brightness of LED lighting lamps.

[0042] The brightness control single live wire given unit 100 of the LED lighting lamp is provided with a single live wire input terminal L1 and a single live wire output terminal U1, and the single live wire input terminal L1 is connected to the live wire of an AC power supply; the LED lighting lamp brightness control adjustment unit 200 There are a live wire input terminal U1, a neutral line input terminal N, and a PWM brightness control si...

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PUM

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Abstract

A light-adjusting device of an LED illuminating lamp comprises an LED illuminating lamp brightness control single firewire setting unit, an LED illuminating lamp brightness control adjusting unit, and an LED illuminating lamp brightness control drive unit. According to a light-adjusting method of the LED illuminating lamp, a method that positive and negative half-waves of a bidirectional thyristor are controlled to be triggered in a phase shifting mode is adopted, an LED illuminating lamp brightness increasing control signal or an LED illuminating lamp brightness reducing control signal is sent out in a single firewire mode, the brightness control signal is recognized through a micro controller, and the micro controller outputs a PWM signal with an adjustable duty ratio to control the brightness of the LED illuminating lamp to change between 0% and 100% in a 1% step value. The light-adjusting device is free of a remote controller and a control wire, a power supply wire does not need to be paved again, and replacement and upgrading of a common illuminating lamp are achieved.

Description

technical field [0001] The invention relates to a lighting lamp technology, in particular to a stepless dimming device and method for an LED lighting lamp. Background technique [0002] Due to the non-linear characteristics of the LED lighting lamp, the brightness of the LED lighting lamp cannot be realized by adjusting the voltage. [0003] When a controllable constant current source is used to adjust the brightness of the LED lighting, the change of the working current will cause the color shift of the LED lighting. At the same time, the load current of the LED lighting at low brightness will also become very low, which will make the The efficiency of the constant current source is reduced and the temperature rise is increased, and the power consumption on the driver chip is greater, which will damage the life of the constant current source and the LED light source. [0004] Using PWM (pulse width modulation) dimming method to control the brightness of LED lighting can av...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02
Inventor 凌云肖伸平周维龙
Owner HUNAN UNIV OF TECH
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