發(fā)現(xiàn)一個檢測LED方法

今天偶爾發(fā)現(xiàn)一個檢測LED顏色的簡易方法 用控制器和手就能檢測出LED串燈或單個燈顏色 控制器接通電源用負極接LED串燈的負極 自己的手接觸正極 就會發(fā)現(xiàn)LED發(fā)光二極管微亮 就能知道燈的顏色了 不知道什么原理  本人學生 請版主和各位分析下原因

一串燈20個就算60V，220V-60V=160V。意思就是用手來承擔160V的電壓吧

一會去試試吧..........................................

忘了說了 我先在負極串了20個1K2W的電阻 有沒有觸電的 哈哈

最好用隔離電源，，轉換一下才保險

樓上樓下的可千萬不要試！特別是不懂電的，220V不隔離，即使串了電阻也危險?。。?/td>

用個1.5V的電池，最好不過了
圓形的那種，沒有就拆電腦主板那有個{:1_126:}

[img][/img]

[whitepad]***400;200;400,200;;** m43,22 l47,23,50,26,50,32,48,36,45,40,42,45,39,49,37,55,34,59,31,64,27,67,25,70,22,72,19,75,21,72,23,70,27,68,35,62,45,56,51,53 56,50,61,49,69,45,73,44,76,42,79,42,82,41,82,43,78,47,76,50,73,53,70,57,68,60,64,64,61,68,56,71,52,74,47,78,43,80 e|********* m6,98 l11,97,15,94,21,91,25,88,28,86,33,84,37,81,43,79,48,76,60,70,65,68,70,65,77,63,87,59,91,57,94,56,95,55 e|********* m12,93 l21,93,25,95,27,98,28,100,28,103,29,107,30,112,30,152,29,158,29,165,28,171,28,176,27,181,25,189,24,192,23,194 e|********* m36,112 l42,112,47,108,50,104,58,98,62,96,66,93,71,90,86,84,90,83,94,81,96,85,96,106,94,112,92,115,90,117,88,120,83,125,79,126,76,126,72,123 71,120,69,117,67,113,65,111,63,108,62,106,62,115,61,118,61,121,60,125,60,129,59,133,59,137,58,142,58,146,57,151,57,172,58,174,59,177,62,178 82,173,87,171,91,169,95,168,99,166,103,165,111,161,117,159,121,156,124,154,126,152,126,135,123,126 e|********* m152,40 l155,38,159,37,163,35,168,34,185,34,190,35,195,35,198,36,202,38,201,42,199,45,196,48,193,50,187,56,183,59,184,61,190,62,198,64,203,65,209,69 211,72,212,76,212,85,210,90,204,98,200,102,196,105,192,107,188,108,184,108,180,107,175,105,171,102,167,98,164,94,161,89,159,85,157,80,157,76,155,72 155,70,154,67,154,71,155,74,155,96,154,103,154,118,155,127,155,153,154,161,154,168,153,174,153,182 e|********* m220,15 l227,15,230,14,236,14,241,16,242,18,243,23,242,28,240,35,238,43,235,52,230,61,226,69,221,78,215,86,209,92,203,97,198,101,193,103,189,103,186,102 184,100,183,97,184,93,185,90,187,87,190,84,194,81,202,77,207,75,219,71,225,70,239,68,253,64,261,63,277,59,284,58,290,57,298,55,302,55,300,57 297,59 e|********* m205,116 l209,115,213,113,218,111,223,108,230,104,236,101,243,97,250,94,257,92,264,91,270,89,275,88,278,88,282,87 e|********* m200,132 l203,133,211,141,212,144,214,147,216,149,217,151,221,154,223,156,219,150,218,145,217,139,216,134,216,125,217,127,218,130,222,134,224,137,226,139,230,142,234,142 238,141,241,137,243,134,244,131,244,129,245,126,246,124,249,124,255,130,259,132,261,132,265,130,268,128,270,126,272,123,273,121,275,118,276,116,276,120,275,124 271,130,262,139,256,143,250,148,243,153,236,157,228,163,220,168,214,172,207,176,197,180,194,182,191,183,192,180,195,179,209,172,215,168,221,165,228,161,237,157 253,151,273,143,291,137,300,135,308,133,316,132,323,131,341,131,344,132,347,132,350,133,353,133 e|********* m371,21 l374,22,377,24,377,39,376,42,376,45,375,49,375,59,374,62,374,71,373,74,374,78,374,85,375,88,375,110,374,113,374,118,373,120,373,131 e|********* m357,158 l361,159,362,159,356,161,355,163,354,166,354,168,355,171,357,173,360,174,363,173,367,169,367,164,365,160,365,157,362,156,361,156 e[/whitepad]

{:1_121:}{:1_121:}{:1_121:}

我購買了壇主的死燈檢測器非常好用（并非做廣告），安全又方便，你也可以自己做一個，論壇中有電路圖哦，

我自已做做看看{:1_137:}

高危險//////////。。。。。。。

此方法不可取～～～～～～～～～～～～～！?。。。。。。。。。。。。。。。?！