Luminous Diode Resistance Cold Knowledge

Ndinofanira kuwedzera kuramba here? Chii chichaitika pasina kuramba pasina voltage? Ehe, iyo light-emitting diode inofanirwa kuwedzerwa nekupokana kushandisa. Iyo light emitting diode haigone kuve yakananga mune imwe voltage. Kuramba kuyerera kunofanirwa kuve kwakaganhurirwa. Zvikasadaro. Sei chiedza chinobudisa diode chisingakwanisi kubatana zvakananga nemagetsi emagetsi emagetsi asingagoni kubatanidzwa zvakananga kumativi ose maviri emagetsi anonyanya kukonzerwa nezvikonzero zviviri: 1) kudonha kwakanaka kwemhepo kunopesana; 2) kuchinja kwazvino kwakakura. Chikonzero chiri pasi apa. Kudonhedza kwakanaka kwekudonha kwechiedza -emitting diode yakasiyana. Kana uchishanda zvakajairika, iyo mwenje inoburitsa diode ichava neiyo yakanaka kudonhedza VF. Iyo VF haisi imwe kukosha, asi chiyero. Kutora dzvuku dzvuku emitting diode semuenzaniso, huwandu hweVF ndeye (1.7-2.2) V, uye nguva imwe neimwe Kuenderana kwehunhu hwechiedza diode hakuna kunaka, uye kwakasiyana zvishoma, saka zvakaoma kuwana. voltage inokodzera diode yese. 2. Iyo nzira chaiyo yekuvhenekesa emitting diode. Iyo light emitting diode kazhinji ine nzira mbiri dzekutyaira. Nzira yekutanga ndeyekubatanidza neyezvino -limited resistance tambo mumagetsi; nzira yechipiri ndeyokushandisa nguva dzose yazvino sosi kutyaira. Constant voltage driver. Kuti udzivise ikozvino kuti irege kuva yakakura, chiedza-emitting diode chinopiswa kunze, uye chiedza-emitting diode uye ikozvino -kumisa kushorwa kunoda kuyerera. Kukosha kwekupikisa kunopedzwa nemaitiro anotevera: R = (V-Vf)/i. Pakati pavo, VF ndiyo yekumberi voltage yeinobudisa diode, uye ini ndiyo yazvino yandinoda kuyerera. Tichitora dzvuku dzvuku emitting diode semuenzaniso, huwandu hweiyo yepamberi voltage inodonha VF ndeye (1.7-2.2) V uye inoshanda ikozvino 2-25mA. Kana iwe uchiunza mufomu. Iyi nzira yekutyaira inowanzoshandiswa munyaya iyo nhamba ye LED idiki. Kana iyo yakashandiswa sechiratidzo chesimba uye chiratidzo chechiratidzo chechiedza chedunhu, kana nhamba yekutyaira diode yakakura, unogona kufunga nezvekushandisa inogara iripo sosi mutyairi. Hengliu sosi inoshandiswa zvakanyanya muindasitiri yekuvhenekesa imba. Sezvo ma LED ese akabatanidzwa munhevedzano, chero bedzi LED imwe yakakuvadzwa, ma LED ose haana kujeka. 3. Kuenzanisa kweviri nzira dzekutyaira, iyo yazvino yekumisa kupikisa nzira, inonyanya kushandiswa mune iyo iyo nhamba yemwenje ye LED mabheji ishoma. Zvakanakira ndezvokuti dunhu riri nyore, uye zvisingabatsiri ndezvokuti kuderedzwa kwakanaka kwekudzikisa kwechiedza chinobudisa diode kunopesana, saka kupenya kwekushandiswa kwakawanda kwakasiyana. Iyo nzira yekutyaira yeHengliu sosi inogona kuve nechokwadi chekuti kupenya kweimwe neimwe inoburitsa diode kwakangofanana, asi kukuvadzwa kweumwe neumwe mwenje we LED mabheji kuchakanganisa kushanda kwese mabhesi emwenje e LED. Pfupisisa iwo malight emitting diode haigone kushandiswa zvakananga mumagetsi.