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LED驱动器三合一调光是什么?

2020-11-10 18:59

LED驱动器三合一调光的定义

LED驱动器三合一调光是指:LED 0/1-10V调光,PWM调光,可调电阻三种方式调光。

1.LED驱动器电源三合一调光:0或1-10V调光:

电源设计带有控制芯片,接0-10V调光器时,通过0-10V电压变化,改变电源输出电流。例如:当0-10V调光器调制到0V时,电流降到到了0,其灯光亮度也就是关闭状态(有个开关作用),当0-10V调光器调大最大10V时,

输出电流也将达到电源输出的100%,亮度也将100%.(输出电压是不变的).

1-10V调光原理:如上所说明,只是调光器是1-10V:当电阻调光器调到最小1V时,改变输出的电流也是10%,如到10V时(调到最大),输出电流也将达到电源输出的100%,亮度也将100%.(输出电压是不变的).

备注:1-10V是没有开关功能,不能将灯具调到最低关闭作用!

2.LED驱动器电源三合一调光:PWM调光

数字调光又称PWM调光,通过PWM波开启和关闭LED来改变正向电流的导通时间,以达到亮度调节的效果。该方法基于人眼对亮度闪烁不够敏感的特性,使负载LED时亮时暗。

3.LED驱动器电源三合一调光:可调电阻调光

可调电阻调光是在灯泡回路中串入电阻,改变电阻值来改变回路电流达到调光的目的。

LED驱动器调光各有什么优势?

支持LED驱动器三合一调光的电源

明纬LED调光产品会依照灯具应用的场合或市场需求设计搭配的调光方式,建议先以灯具应 用类别选择LED产品,再依原产品的调光方式选择调光器,如果不考虑应用场合,单比较调光方式优缺点如下。

LED驱动器三合一调光各个优势与缺点

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