Chiedza Chete Inoziva Zvakawanda Zvakadini?

Kuora kwechiedza che LED kunoreva kuti mushure menguva yechiedza, chiedza chayo chakasimba chichave chakaderera pane chepakutanga, uye chikamu chezasi ndicho chiedza che LED chiri kuora. , Munhu wose anozivawo kuti nzira inokosha yekuderedza kuora kwechiedza ndeyekuvandudza kupisa kwayo kupisa. Nekudaro, mhinduro dzebvunzo dzemwenje dzakasiyana dzemumugwagwa dzakayedzwa nguva pfupi yadarika neChiedza Environment Management Center, uye kuora kwemwenje kwemarambi mazhinji emumugwagwa hakugone kuzadzisa zvinodiwa zvekushandiswa. Kuora kwechiedza mushure memaawa 1200 echiedza ndeye 8%, yakaipisisa ndeye 26%, uye avhareji ndeye 14%. Zvinoenderana nemhedzisiro yedu yebvunzo, kana tembiricha yepfundo iri 105 madhigirii, 14% kuora kwechiedza kunofanirwa kunge kuri kushanda maawa mazana matanhatu. Zvinogona kuoneka kuti tembiricha yeknot yemarambi mazhinji emumugwagwa iri pamusoro pe105 degrees kana kupfuura. Chikamu chakakura chekambani hachifanirwe kubvumirana nemhedzisiro yakadaro, nekuti ivo vanofunga kuti radiator yavo yakanyatsogadzirwa. Mamiriro ezvinhu chaiwo anogona kunge akafanana, asi mhedzisiro yebvunzo haigone kupokana. Dambudziko nderei? Mupepeti anotenda kuti radiator inogona kunge isina kugadzirwa zvakanyanya, asi inogona. Asi nei simba remagetsi remagetsi rinogara richikonzera kuora kwechiedza? Izvi zvinoita kunge zvekudenga zvishoma. Asi chokwadi, pane zvakakomba zvakadaro. Ngatitange kubva pakutanga! 1. Isu tose tinoziva kuti Viaticity ye LED idhidhiyo, uye iyo inonyanya kukosha yemagetsi maitiro eiyo diode hunhu hwayo hweVodiat. 2. Kunyangwe iwo tembiricha maitiro e LED Voldown maitiro asina kufanana neavhareji diode, musiyano mukuru ndewekuti tembiricha yayo maitiro. Muchokwadi, madhiodhi ese ane dambudziko rehunhu hwekushisa, asi iyo LED inoda kutariswa kwakanyanya kuti itarise zvakanyanya. Izvi zvinodaro nekuti: Iko kushanda kweiyo simba-yepamusoro LED yakakura, 1W i0.35A, 3-5W ndeye 0.7A, 20W ndeye 1.05A, 30W ndeye 1.75A, 50W ndeye 3.5A i3.5A. Nekudaro, vamwe vanhu vanogona kunzwa kuti iyo yakanaka ikozvino yeinogadzirisa diode inogonawo kusvika kune yakakura kudaro kukosha. Nekuda kwekuti ikozvino mwenje wekubudisa mwenje uchiri wakadzikira, mazhinji emagetsi ekuisa magetsi anoshandurwa kuita kupisa, saka kupisa kwayo kwakanyanya. Kana radiator ikasaita zvakanaka, tembiricha yepfundo inokwira zvakanyanya. Iyo LED yakasiyana neye rectifier diode. Iyo haina kugadzirwa neyakajairwa silicon zvinhu, asi inogadzirwa nezvinhu zvakakosha (senge nitride). Naizvozvo, tembiricha maitiro ayo akavandira maitiro akasiyana kubva paavhareji diode, asi kuve akakura zvakanyanya kupfuura avhareji diode. Semuyenzaniso, tembiricha hunhu hweakahwanda hunhu hweavhareji diode ndeye -2mv/ C. 3. Dambudziko rinokonzerwa nekuwedzera kwekushisa kweknot Mushure mekunge tembiricha ye LED inokwira, yekutanga inounzwa nekubuda kwechiedza inoderedzwa. Kukwirira kwekureruka kunokonzerwa nekukwira kwetembiricha yepfundo hakuna kunaka nekuti tembiricha yemhando yevoltano haina kunaka, zvinoreva kuti tembiricha yakakwira uye maitiro anosiiwa achifamba. Semuenzaniso, fungidzira kuti tembiricha inokwira ne50 madhigirii, ipapo maitiro eFa'an anozoenda kune 200mv kuruboshwe. Iko kushandiswa kwekugara kwemagetsi magetsi ekupa magetsi kuchawedzera iyo yakanaka ikozvino ye LED nekuwedzera kwekukwira kwekushisa. Nekuti magetsi emagetsi anogara aripo, uye maitiro eFa'an achinja kuruboshwe, mhedzisiro ndeyekuti yakanaka ikozvino inowedzera. Inogona kuonekwa kubva kuFuan maitiro eMufananidzo 2 kuti kana nguva dzose magetsi emagetsi anoshandiswa ne 3.3V pakupisa kwekamuri, mberi ikozvino 350mA; mushure mekunge tembiricha yepfundo yakwira ne50 degrees, maitiro evoltano anosiiwa ne 0.2V, iyo yakaenzana nemagetsi emagetsi, ayo akaenzana nemagetsi emagetsi, ayo akaenzana nemagetsi emagetsi, ayo akaenzana nemagetsi. Integge inokwira kusvika ku 3.5V. Panguva ino, iyo yakanaka ikozvino ichawedzera kusvika ku600mA. 4. Mushure mekushandiswa kweiyo yakashata kutenderera kwekushisa kuwedzera kutenderera kwakashata kweiyo inogara voltage magetsi, nekuti magetsi emagetsi haana kuchinja, simba rekuisa re LED rinowedzera kusvika 3.3VX0.6A = 1.98W, iyo ine zvakapetwa kaviri zvakapetwa kaviri. Mushure mekunge tembiricha yakakwira, kubuda kwechiedza kunoderera, izvo zvinoreva kuti simba rakawanda rekupinza rinoshandurwa kuita simba rekupisa, ndiko kuti, kana kumberi kuchiwedzera panguva ino, kubuda kwayo kwechiedza hakuwedzere sezvainowedzera, asi kunoderera. . Nokudaro, kuwedzera kwehutano hwakanaka panguva ino kunongokonzera kuwedzera kwekushisa kwemafundo, uye hazvizowedzere kubuda kwechiedza. Naizvozvo, mushure mekuwedzera tembiricha yepfundo, iyo yakanaka ikozvino inowedzera, tembiricha yepfundo inowedzera, uye kumberi kwezvino kunowedzera, izvo zvinokonzeresa kutenderera kunotyisa kwekukwira kwekushisa kweknot. Mhedziso: Kushandiswa kwekugara kwemagetsi magetsi ekupa magetsi kuchawedzera tembiricha yepfundo, kuwedzera kuora kwechiedza, uye kupfupisa hupenyu. Naizvozvo, kubva muongororo yapfuura, tinogona kutora mhedziso yakadai: Kushandiswa kwemagetsi emagetsi emagetsi anogara achiwedzera kunowedzera tembiricha yepfundo, uye mhedzisiro yekuwedzera tembiricha yepfundo inowedzerwa nekuora kwechiedza uye kupfupikiswa kwehupenyu. Tichifunga kuti LED yakabatidzwa pa25 madhigirii pakamuri tembiricha, tembiricha yepfundo inokwira mushure mekubhowa. Fungidzira kuti radiator yakagadzirirwa kukwira kusvika 75 madhigirii, ndiko kuti, tembiricha yepfundo inowedzera ne50 madhigirii, ipapo iyo yakanaka ikozvino ichawedzera kusvika 600mA kusvika 600mA kusvika 600mA. Simba rose rakawedzera kubva ku1.155W kusvika ku1.98W, kuwedzera kwe0.825W 0.825W. Uye simba rinowedzera muchikamu ichi rinenge rose rakashandurwa kuti rive kupisa. Tichifunga kuti yekutanga kupenya kwe LED i30%, ndiko kuti, iyo 70% yekupinda simba (0.8W) inoshandurwa kuita simba rekupisa kune iro rinopisa simba simba. Ikozvino kune kaviri simba rekupisa rinoda kuparadzirwa kubva kune radiator. Zviripachena, izvi hazvitariswe neiyo yekutanga radiator dhizaini. Izvi zvakawedzera kupisa kweknot kwe LED ne50 degrees kusvika ku125 degrees. Ngatidzokerei kuMufananidzo 1 kuti tione kuora kwemaziso. Hupenyu hwe125 madhigirii echiedza hunenge maawa zana nemakumi maviri. Ipapo iwe unogona kutsanangura nei yakanyatsogadzirwa radiator. Ichiri kuora kwakawanda kwechiedza uye hupenyu hupfupi! Naizvozvo, magetsi emagetsi e LED anofanirwa kufambiswa neanogara aripo emagetsi. Mushure mekunge ikozvino iri nguva dzose, zvisinei kuti kupisa kunoshanduka sei, maitiro ekuvandira anotamiswa kuruboshwe, uye ikozvino haishanduki! Kupisa kwepfundo hakuzove kwakashata!