Zikuthwanima LEDs: lakuti, ofotokoza

Kawirikawiri masitolo kugulitsa mbali wailesi, Tingaone zikuthwanima LEDs. Iwo ali osiyana mu mphamvu ndi mtundu chowala. Zikuthwanima LEDs (MSD) amaveka ndi michenga yopangira zida zamagetsi zinthu yofunika magudumu zimachitika amene pafupipafupi ndi kubuka 1,5-3Gts.

Ambiri ankachita masewera ntchito wailesi tikambirane zipangizozi amakhala opanda ndipo ziyenera kulowa mmalo mwa zizindikiro mtengo kutsogoleredwa. Mwina, munjira zina zonse zili bwino. Komabe, DPA ali ndi ufulu kukhalapo. Yesetsani kumvetsa mmene Kodi ubwino wa mankhwala amenewa.

Zikuthwanima LEDs, Ndipotu, wathunthu zinchito wagawo amene chachikulu cholinga - kukopa tcheru, ndi ntchito ya kuwala ma siginalo. Iwo ayenera kukumbukira kuti kukula kwa zikuthwanima zinthu michenga yopangira zida zamagetsi musati amasiyana LEDs muyezo chizindikiro. Komabe, ngakhale kukula kwake yaying'ono, mu MSD zikuphatikizapo michenga yopangira zida zamagetsi Chip oscillators, komanso ena zinthu zina. Ngati jenereta zimachitika lakonzedwa mu zigawo ochiritsira wailesi, mamangidwe akanakhala mwachilungamo olemekezeka kukula. Dziwani kuti LEDs zikuthwanima aliyense ali ndithu. Voteji kotunga zinthu ngati ali mu osiyanasiyana 1,8-5 V zipangizo otsika voteji ndi 3-14 V kwa voteji mkulu. chithunzi chili m'munsichi chikusonyeza kuphethira LED 12 volts.

Ubwino MSD:

- osiyanasiyana okwanira voltages (14 volts);

- ang'ono chonse miyeso ;

- ndithu yaying'ono chipangizo kuwala posonyeza;

- osiyana umuna mitundu. Ena mitundu ya zikuthwanima LEDs ndi anamanga-diodes angapo mtundu yosiyana pafupipafupi ndimakwiya (zikuthwanima chikasu LED pa chithunzi zasonyezedwa);

- kugwiritsa ntchito MSD ali ndi zifukwa zipangizo yaing'ono, imene zofunika okhwima kukula kwa zigawo zikuluzikulu ndi mowa mphamvu. diodes izi, chifukwa dera ake pakompyuta anasonkhana pa nyumba ya mos ndi otsika mowa panopa ali pa mphamvu mokwanira mkulu umuna;

- Pakuwala michenga yopangira zida zamagetsi chipangizo ngakhale m'malo unit zinchito.

M'dera la zithunzi MSD likutipatsa chithunzi wosiyana inatsogolera ochiritsira monga lili mizere mivi amaimira zikuthwanima katundu amafotokozera.

Tiyeni tione mwatsatanetsatane kamangidwe ka zikuthwanima LEDs. Kudzera mandala nyumba mchitidwe Tingaone kuti ndi zaphindu diode imakhala ndi mbali ziwiri. Kuwala emitting Chip aikidwa pa maziko a cathode ndi (zoipa) elekitirodi ndi Chip-jenereta zachokera anode (elekitirodi zabwino). Ziwalo zonse chipangizo ogwirizana ndi milatho golide atatu. Chip jenereta ndi mkulu pafupipafupi mbuye oscillator amene umagwira ntchito mosalekeza, pafupipafupi ake kuzungulira 100 kHz. Komanso mu chiwembu zikuthwanima diode wogawira alipo, anasonkhana pa zinthu zomveka. Iwo ukugawa mkulu kufunika pafupipafupi kuti mlingo wa 1.5-3 Hz. Mungafunse kuti: "N'chifukwa chiyani ntchito mkulu-pafupipafupi jenereta ndi wogawira, bwanji kunali kosatheka kuti ntchito otsika-pafupipafupi oscillator, chotero wosalira kamangidwe?" Ichi ndi chifukwa chakuti kwa kukhazikitsa jenereta ya pafupipafupi otsika amafuna lalikulu capacitance capacitor kwa unyolo vremyaopredelyayuschey. Kukhazikitsa ndi capacitor ngati kungafune dera wokulirapo kusiyana ndi ntchito mkulu-pafupipafupi jenereta.

Kotero ife anayang'ana pa zimene zikung'anima LED. Ndipo pa funso limene bwino - kapena miyambo luso MSD chizindikiro diodes kuyankha kuti ngakhale cheapness wachiwiri, zikuthwanima diodes anapezanso kuchuluka kwawo ndi saposa miyambo.