Kodi Mfundo Yaikulu Ya Mikanda Yanyali Yamtundu Wa LED Ndi Chiyani?

Dzina lonse la LED ndi semiconductor emitting diode, yomwe imapangidwa ndi zinthu za semiconductor. Mfundo yake yogwira ntchito ndikusintha mwachindunji mphamvu yamagetsi ku mphamvu ya kuwala, ndipo nambala yamagetsi imasandulika kukhala chizindikiro cha kuwala -kutulutsa chipangizo. Ubwino wake ndi: kugwiritsa ntchito pang'ono, kuwala kwakukulu, mtundu wolemera, kukana kugwedezeka kwamphamvu, moyo wautali wautumiki (kuwala kwanthawi zonse kumafikira maola 80,000 mpaka 100,000), gwero lowala lozizira, ndi zina zotero, zitha kunenedwa kuti ndizowunikira kwenikweni. Zowunikira zokhala ndi LED monga gwero latsopano lowunikira zidzalowanso m'malo mwa nyali zoluka zoyera m'zaka za zana la 21, kukhala kusintha kwina pakuwunikira kwaumunthu. Mikanda ya nyali ya LED imagwiritsa ntchito magetsi otsika, ndipo magetsi amasungidwa pakati pa 2-4V. Malingana ndi kusiyana kwa mankhwala, mikanda ya nyali ya LED ndi magetsi apamwamba kwambiri kuposa kugwiritsa ntchito mphamvu yamagetsi, yomwe ili yoyenera kugwiritsidwa ntchito m'malo opezeka anthu ambiri. Kapangidwe ka mikanda yowoneka bwino ya nyali ya LED imaphatikizapo zofiira (R), zobiriwira (g), ndi buluu (b) zamitundu itatu yamtundu wa LED. Aliyense amadziwa zamitundu iwiri ya LED. Nthawi zambiri imakhala ndi kuwala kofiira kwa LED ndi LED yobiriwira. Ikhoza palokha imatulutsa kuwala kofiira kapena kobiriwira. Ngati kuwala kofiira ndi kuwala kobiriwira ndizowunikira nthawi imodzi, mitundu iwiri ya kuwala kofiira ndi yobiriwira idzasakanizidwa ndi lalanje - yachikasu. Mfundo ya kusinthika kwa nyali yosinthika ndi pamene nyali zitatu zoyambirira zimayatsa ndi ma LED awiri, zimatha kutulutsa zachikasu, zofiirira, zacyan (monga ma LED ofiira ndi a buluu akayatsa kuwala kofiirira); Ngati ma LED atatu a kuwala kwa buluu nthawi imodzi, adzatulutsa kuwala koyera. Ngati pali dera lomwe limatha kuyatsa kuwala kofiira, kobiriwira, ndi buluu LED motsatana, kuyatsa, ndikuyatsa ndi mitundu itatu yoyambira yokha, ndiye kuti mitundu isanu ndi iwiri yowala imatha kutulutsa, kotero chodabwitsa cha nyali zamtundu wa LED chikuwonekera.