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EDN电子技术设计
6 年
调光型LED驱动电源Harmonic Current设计
由于LED驱动电源常用交换式开关技术,此类产品对电力会有污染,造成电力线的利用率大幅降低,故IEC-61000-3-2: 2014要求25瓦以上的LED 灯具需要满足谐波电流(Harmonic current )的标准。在满载或是高负载情况下,LED 驱动电源本身就必须具备可以控制谐波电流(Harmonic ...
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