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浅谈led產生有色光的方法

砷(AS)化鎵(ga) ,其正向pn结压降(vf,可以理解为点亮或工作电压)为1.424v,发出的光线为红外光谱。另一种常用的led材料为磷(p)化鎵(ga),其正向pn结压降为2

  http://blog.alighting.cn/magicc/archive/2011/8/19/232817.html2011/8/19 0:28:00

建筑是雕塑、洞穴、路径—菲利普•约翰逊

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  http://blog.alighting.cn/rosekey/archive/2011/8/18/232768.html2011/8/18 18:43:00

用1或2个mcu引脚驱动大型7段led显示器

驱动7段led显示器有许多种选择,但大都局限于低输出电流。这里描述的方案采用一个作为移位寄存器连接的74als374 或74AS374八路锁存器,对每位进行移位。74als374

  http://blog.alighting.cn/q89481240/archive/2011/8/18/232665.html2011/8/18 1:22:00

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  http://blog.alighting.cn/angel1/archive/2011/8/17/232600.html2011/8/17 14:26:00

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  http://blog.alighting.cn/angel1/archive/2011/8/9/232098.html2011/8/9 14:30:00

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  http://blog.alighting.cn/angel1/archive/2011/8/9/232097.html2011/8/9 14:29:00

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