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详述LM3447 TI可控硅调光IC（全英版）
消耗积分:1 |
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大小:521KB |
2014-07-23
风雷电
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The LM3447 is a versatile power factor correction (PFC) controller designed to meet the performance requirements of residential and commercial phase-cut dimmer compatible LED lamp drivers。The device incorporates a phase decoder circuit and an adjustable hold current circuit to provide smooth，flicker free dimming operation。 A proprietary primary side control technique based on input voltage feedforward is used to regulate the input power drawn by the LED driver and to achieve line regulation over a wide range of input voltage。
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