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[主观题]
二极管发光电路如下图所示。已知发光二极管的导通压降为1.5V,正常发光时,10mA≤ID≤15mA,VD=1.8v。与非门带灌电
二极管发光电路如下图所示。已知发光二极管的导通压降为1.5V,正常发光时,10mA≤ID≤15mA,VD=1.8v。与非门带灌电流负载能力IoL=16mA,带拉电流负载能力IoH=-4000μA,输出高电平VoH=3.4V,输出低电平VoL=0.3V。OC门带灌电流负载能力IoL=18mA,截止时输出漏电流IOH=200μA,输出低电平VOL=0.3V。试问:
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