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1 调节正向电流的方法调节led的电流最简单的方法就是改变和led负载串联的电流检测电阻(图2A),几乎所有dc-dc恒流芯片都有一个检测电流的接口,是检测到的电压和芯片内部的参考电
http://blog.alighting.cn/maoyuhai/archive/2012/6/28/280288.html2012/6/28 15:51:24
http://blog.alighting.cn/146439/archive/2012/7/19/282549.html2012/7/19 10:57:32
种led是将gAn芯片和钇铝石榴石(yAg)封装在一起做成。gAn芯片发蓝光(λp=465nm,wd=30nm),高温烧结制成的含ce3+的yAg荧光粉受此蓝光激发后发出黄色光
http://blog.alighting.cn/88307/archive/2012/9/22/290654.html2012/9/22 17:00:31
分反应了市场充分竞争的格局,A股市场中以led或者配套上市的一共有17家,15家以led为主,包括以三安光电为代表的led芯片类,以国星光电为代表的led封装类,以勤上光电为代
http://blog.alighting.cn/qudao/archive/2013/7/12/320831.html2013/7/12 13:53:28
led(lightemittingdiode),又称发光二极管,是利用固体半导体芯片作为发光材料,当两端施加正向电压时,半导体中的载流子发生复合,放出过剩的能量而引起光子发射产
http://blog.alighting.cn/221382/archive/2015/9/2/374180.html2015/9/2 14:18:50
. while durAble And held deAr, the pAstorAl let hAve mAnAged to mAke sAfe A methodicAl An
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d reliAble web servers. bluehost offers A greAt low-cost, high quAlity plAn for only $6.9
http://blog.alighting.cn/redcar/archive/2010/1/1/22997.html2010/1/1 12:48:00
s currency And its humAn rights record hAve Also creAted tensions.And now there is A ne
http://blog.alighting.cn/lanlan0831/archive/2010/1/27/26118.html2010/1/27 10:17:00
r wAs A doctor. her mother wAs A former teAcherAir mAx ltd And nurse. After grAduAting fro
http://blog.alighting.cn/zhengzhu88/archive/2010/2/27/34508.html2010/2/27 15:01:00
n April of eighteen sixty-five. Andrew johnson soon found himself in A bitter struggle wit
http://blog.alighting.cn/zhengzhu88/archive/2010/2/27/34514.html2010/2/27 15:08:00