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      LED驅(qū)動電源設(shè)計(jì)開發(fā)知識大全

      2013-08-27
      立即下載

      LED 驅(qū)動電源是把電源供應(yīng)轉(zhuǎn)換為特定的電壓電流以驅(qū)動LED 發(fā)光的電壓轉(zhuǎn)換器,通常情況下:LED 驅(qū)動電源的輸入包括高壓工頻交流(即市電)、低壓直流、高壓直流、低壓高頻交流(如電子變壓器的輸出)等。而LED 驅(qū)動電源的輸出則大多數(shù)為可隨LED 正向壓降值變化而改變電壓的恒定電流源。

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