Chii chinonzi LED?
LED inomirira "Chiedza Emitting Diode."Iyo semiconductor mudziyo unoburitsa chiedza kana magetsi achipfuura napo.Ma LED anoshandiswa mumhando dzakasiyana-siyana dzekushandisa, kusanganisira mwenje, zviratidzo, zviratidzo, nezvimwe.Ivo vanozivikanwa nekugona kwesimba, kusimba, uye hupenyu hurefu kana zvichienzaniswa neyechinyakare incandescent kana fluorescent bulbs.Ma LED anouya mumarudzi akasiyana-siyana uye anogona kushandiswa mumhando dzakasiyana dzezvigadzirwa, kubva kune akareruka mwenje mwenje kusvika kune yakaomarara yemagetsi kuratidza uye mwenje zvigadziriso.
Iyo Nheyo yemwenje ye LED
Kana maerekitironi nemaburi ari muPN junction yelight-emitting diode zvasanganazve, maerekitironi anochinja kubva padanho repamusoro resimba kuenda padanho resimba rakaderera, uye maerekitironi anoburitsa simba rakawandisa semaphoton anobuda (electromagnetic waves), zvichikonzera electroluminescence.Ruvara rwekupenya rwakabatana nezvinhu zvinoumba hwaro hwayo.Zvinhu zvikuru zvinoumbwa zvakaita segallium arsenide diode inoburitsa mwenje mutsvuku, gallium phosphide diode inoburitsa girinhi mwenje, silicon carbide diode inoburitsa yellow light, uye gallium nitride diode inoburitsa mwenje weblue.
Chiedza sosi kuenzanisa
LED: yakakwirira electro-optical kutendeuka kushanda zvakanaka (inoda kusvika 60%), yakasvibirira uye yakasvibirira zvakatipoteredza, hupenyu hurefu (kusvika kumaawa 100,000), yakaderera yekushanda voltage (inenge 3V), hapana kurasikirwa kwehupenyu mushure mekudzokororwa kushandura, diki diki, yakaderera kupisa chizvarwa. , kupenya kwepamusoro, kwakasimba uye kwakasimba, Nyore kudzima, mavara akasiyana-siyana, akadzikama uye akagadzikana danda, hapana kunonoka mukutanga.
Incandescent mwenje: yakaderera electro-optical kutendeuka kushanda zvakanaka (anenge 10%), hupenyu hupfupi (anenge maawa 1000), yakanyanya kupisa tembiricha, ruvara rumwe uye yakaderera tembiricha.
Fluorescent mwenje: yakaderera electro-optical kutendeuka kushanda zvakanaka (inenge 30%), inokuvadza kune zvakatipoteredza (ine zvinhu zvinokuvadza senge mercury, inenge 3.5-5mg/uniti), kupenya kusingagadzirisike (yakaderera voltage haigone kuvhenekera), ultraviolet mwaranzi, flickering phenomenon, inononoka kutanga-Slow, mutengo wezvisingawanzo pasi mbishi zvinhu unowedzera, kudzokororwa kuchinjika kunokanganisa hupenyu, uye vhoriyamu yakakura.Marambi ekuburitsa gasi anodzvinyirira: anopedza simba rakawanda, haana kuchengetedzeka kushandisa, ane pfupi. hupenyu, uye vane matambudziko ekupisa kupisa.Iwo anonyanya kushandiswa kuvhenekera kunze.
Zvakanakira zve LED
LED idiki diki chip yakavharirwa mu epoxy resin, saka idiki uye isina huremu.Kazhinji, magetsi ekushanda e LED ndeye 2-3.6V, kushanda ikozvino 0.02-0.03A, uye simba rekushandisa harina kudarika.
0.1W.Pasi pemagetsi akagadzikana uye akakodzera uye nemamiriro ekushanda azvino, hupenyu hwesevhisi hwema LED hunogona kunge hwakareba maawa 100,000.
LED inoshandisa inotonhora luminescence tekinoroji, iyo inogadzira kupisa kwakadzikira pane zvakajairwa mwenje zvigadziriso zvesimba rimwe chete.Ma LED anogadzirwa nezvinhu zvisina chepfu, kusiyana nemarambi efluorescent ane mercury, anogona kukonzera kusvibiswa.Panguva imwecheteyo, ma LED anogona zvakare kushandiswa zvakare uye kushandiswa zvakare.
Kushandiswa kwe LED
Sezvo tekinoroji yeLED ichiramba ichikura uye kukura nekukurumidza, akawanda uye akawanda maapplication e LED anoonekwa muhupenyu hwedu hwezuva nezuva.Ma LED anoshandiswa zvakanyanya mukuratidzira kwe LED, marambi emigwagwa, marambi emotokari, zvitubu zvemwenje, zvishongedzo zvemwenje, LCD skrini yekumashure, nezvimwe.
Kugadzirwa kwe LED
LED ndeye chiedza-emitting chip, bracket uye waya dzakavharidzirwa mu epoxy resin.Iyo yakareruka, haina-chepfu uye ine yakanaka yekuvhundutsa kuramba.LED ine imwe-nzira conduction hunhu, uye kana reverse voltage yakawandisa, inokonzeresa kuparara kwe LED.Iyo huru yekuumbwa chimiro inoratidzwa mumufananidzo:
Nguva yekutumira: Oct-30-2023
