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新聞資訊

LED驅動的三高特點

   根據電網的用電規則和LED驅動電源的特性要求,在選擇和設計LED驅動電源時要考慮到以下幾點:
  1.高可靠性:特別像LED路燈的驅動電源,裝在高空,維修不方便,維修的花費也大。
  2.高效率:LED是節能產品,驅動電源的效率要高。對于電源安裝在燈具內的結構,尤為重要。因為LED的發光效率隨著LED溫度的升高而下降,所以LED的散熱非常重要。電源的效率高,它的耗損功率小,在燈具內發熱量就小,也就降低了燈具的溫升。對延緩LED的光衰有利。
  3.高功率因素:功率因素是電網對負載的要求。一般70瓦以下的用電器,沒有強制性指標。雖然功率不大的單個用電器功率因素低一點對電網的影響不大,但晚上大家點燈,同類負載太集中,會對電網產生較嚴重的污染。對于30瓦~40瓦的LED驅動電源,據說不久的將來,也許會對功率因素方面有一定的指標要求。


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