Sannado badan oo horumarineed ka dib, LED-ga anode-ga caadiga ah ee caadiga ah ayaa sameeyay silsilad warshadeed oo deggan, oo wadata caannimada bandhigyada LED. Si kastaba ha ahaatee, waxay sidoo kale leedahay faa'iido darrooyinka heerkulka shaashadda sare iyo isticmaalka awoodda xad dhaafka ah. Ka dib markii ay soo ifbaxday tiknooloojiyada tamarta korontada ee LED-ka ee cathode, waxay soo jiidatay dareenka weyn ee suuqa bandhiga LED. Habkan awood-siinta tamarta wuxuu gaari karaa badbaadinta tamarta ugu badan ee 75%. Marka waa maxay tikniyoolajiyadda korantada ee LED-ka caadiga ah? Waa maxay faa'iidooyinka farsamadan?
1. Waa maxay LED-ka-cathode-ga caadiga ah?
"Cathode caadiga ah" waxaa loola jeedaa habka sahayda tamarta cathode ee caadiga ah, taas oo dhab ahaantii ah tignoolajiyada tamarta badbaadinta ee muraayadaha LED-ka. Waxay ka dhigan tahay isticmaalka habka cathode ee caadiga ah si loo xoojiyo shaashadda LED-ga, taas oo ah, R, G, B (cas, cagaar, buluug) ee nalalka LED-yada ayaa si gooni ah u shaqeynaya, hadda iyo korantada ayaa si sax ah loo qoondeeyey R. , G, B kuul laambad siday u kala horreeyaan, maxaa yeelay, danab shaqeeya ugu fiicnayn iyo hadda looga baahan yahay R, G, B (cas, cagaar, buluug) kuul laambadihii kala duwan. Sidan oo kale, hadda marka hore wuxuu dhex maraa kuulka laambada ka dibna electrode-ka taban ee IC, hoos u dhaca danabka hore waa la dhimi doonaa, caabbinta gudaha ee korantada ayaa yaraan doonta.
2. Waa maxay farqiga u dhexeeya cathode-ka caadiga ah iyo LED-yada anode-ga caadiga ah?
① Hababka kala duwan ee tamarta:
Habka korantada ee cathode-ga caadiga ah waa in hadda marka hore uu dhex maro laambada laambada ka dibna u gudubta cirifka xun ee IC, kaas oo yareynaya hoos u dhaca danabka hore iyo iska caabbinta gudaha.
Anode-ka caadiga ah waa in hadda uu ka soo qulqulo guddiga PCB ilaa laambada laambada, oo uu koronto siiya R, G, B (cas, cagaar, buluug) si isku mid ah, taas oo horseedaysa hoos u dhac weyn oo koronto ah oo wareegga ah.
② Danab koronto oo kala duwan:
Kathode-ga caadiga ah, waxay si gooni ah u siin doontaa hadda iyo danab R, G, B (cas, cagaar, buluug). Shuruudaha danab ee laambada cas, cagaar iyo buluug waa kala duwan yihiin. Shuruudaha danab ee kuul laambad cas waa qiyaastii 2.8V, iyo shuruudaha danab ee kuul buluug-cagaaran kuul waa qiyaastii 3.8V. Korontada noocan oo kale ah waxay gaari kartaa koronto sax ah iyo isticmaalka koronto yar, kulaylka ay dhaliso LED inta lagu jiro shaqada ayaa aad uga hooseeya.
Anode-ga caadiga ah, dhanka kale, wuxuu siinayaa R, G, B (cas, cagaar, buluug) koronto ka sarreysa 3.8V (sida 5V) ee sahayda midaysan. Waqtigan xaadirka ah, tamarta laga helo casaanka, cagaarka iyo buluuga waa 5V midaysan, laakiin tamarta ugu fiican ee shaqada ee looga baahan yahay saddexda laambad ayaa aad uga hooseeya 5V. Marka loo eego qaacidada korantada P=UI, marka tamarta hadda taagani isbeddesho, korontadu way sarraysaa, korontadu way badanaysaa, yacni, way badanaysaa isticmaalka tamarta. Isla mar ahaantaana, LED-ku wuxuu sidoo kale soo saari doonaa kulayl badan inta lagu jiro shaqada.
TheJiilka Saddexaad ee Caalamiga ah ee Shaashada Banaanka ee LED-ka oo ay soo saartay XYGLED, qaata cathode caadiga ah. Marka la barbar dhigo dheemanka 5V ee casaanka, cagaarka iyo buluuga ah ee iftiiminaya iftiinka, tiirka togan ee chip LED-ka cas waa 3.2V, halka cagaarka iyo buluuga ah ee LED-yada ay yihiin 4.2V, yaraynta isticmaalka tamarta ugu yaraan 30% waxayna soo bandhigaysaa tamar aad u fiican- waxqabadka kaydinta iyo isticmaalka-yaraynta.
3. Waa maxay sababta muraayadda LED-ga ee cathode-ka caadiga ah ay dhaliso kulayl yar?
Habka sahayda korantada ee cathode ee caadiga ah ee shaashadda qabow waxay ka dhigaysaa bandhigga LED inuu dhaliyo kulayl yar iyo kor u kaca heerkulka hoose inta lagu jiro hawlgalka. Xaaladaha caadiga ah, xaalada dheelitirka cad iyo marka fiidiyowyada la ciyaarayo, heerkulka shaashadda qabowgu wuxuu ka hooseeyaa 20 ℃ marka loo eego bandhigga caadiga ah ee LED-ka ee isla moodeelka. Alaabooyinka isku midka ah iyo isla dhalaalka, heerkulka shaashadda ee bandhiga LED-ga cathode ee caadiga ah wuxuu ka badan yahay 20 darajo ka hooseeya kuwa caadiga ah ee anode LED-ka caadiga ah, isticmaalka korantada ayaa ka hooseeya 50% taas ee alaabta bandhiga LED anode caadiga ah.
Heerkulka xad-dhaafka ah iyo isticmaalka korontada ee bandhigga LED-ka ayaa had iyo jeer ahaa arrimaha muhiimka ah ee saameeya nolosha adeegga alaabta bandhigga LED, iyo "muujinta cathode LED-ka caadiga ah" ayaa si fiican u xallin karta labadan dhibaato.
4. Waa maxay faa'iidooyinka bandhigga LED-ka cathode ee caadiga ah?
① Korontada saxda ah ayaa runtii tamar badbaadisa:
Alaabada cathode ee caadiga ah waxay qabataa tignoolajiyada kontoroolka sahayda saxda ah, iyadoo lagu saleynayo sifooyinka kala duwan ee sawir-qaadista ee saddexda midab ee aasaasiga ah ee casaanka, cagaarka iyo buluugga, waxaana lagu qalabeeyaa nidaamka xakamaynta bandhiga IC caqli-gal ah iyo caaryo gaar ah oo madax-bannaan si si sax ah loogu qoondeeyo koronto kala duwan LED-ka iyo wareegga wadista, si isticmaalka awoodda wax soo saarku uu 40% ka hooseeyo kan badeecadaha la midka ah ee suuqa!
② Badbaadinta tamarta dhabta ah waxay keentaa midabyo run ah:
Habka wadista LED-ga ee cathode-ga caadiga ah ayaa si sax ah u xakameyn kara danabka, kaas oo yareynaya isticmaalka tamarta iyo kulaylka. Mawjadda dhererka ee LED kuma hoos socoto hawlgal joogto ah, iyo midabka runta ah ayaa si deggan loo soo bandhigay!
③ Badbaadinta tamarta dhabta ah waxay keentaa nolol dheer:
Isticmaalka tamarta ayaa la dhimay, taas oo si weyn u yaraynaysaa kor u kaca heerkulka nidaamka, si wax ku ool ah u yareeya suurtogalnimada dhaawaca LED, hagaajinta xasiloonida iyo isku halaynta nidaamka bandhigga oo dhan, oo si weyn u kordhiya nolosha nidaamka.
5. Waa maxay horumarka tignoolajiyada caadiga ah ee cathode?
Alaabooyinka taageeraya ee la xidhiidha tignoolajiyada bandhiga LED-ga ee cathode-ga caadiga ah, sida LED, sahayda korantada, darawalka IC, iwm, maaha sida qaan-gaadhka silsiladda warshadaha LED-ka ee anode-ga caadiga ah. Intaa waxaa dheer, taxanaha cathode IC ee caadiga ah ma aha mid dhameystiran hadda, iyo mugga guud ma ahan mid weyn, halka anode-ka caadiga ah uu weli haysto 80% suuqa.
Sababta ugu weyn ee horumarka gaabis ah ee tignoolajiyada caadiga ah ee cathode waa qiimaha sare ee wax soo saarka. Iyada oo ku saleysan wadashaqeynta silsiladda sahayda ee asalka ah, cathode-ka caadiga ah wuxuu u baahan yahay iskaashi habaysan dhammaan darafyada silsiladda warshadaha sida chips, baakadaha, PCB, iwm, taas oo qaali ah.
Xilligan oo ah baaqyo sare oo loogu talagalay badbaadinta tamarta, soo ifbaxa shaashadda cad ee cadcad ee cathode ee caadiga ah waxay noqotay barta taageerada ee ay raacdo warshadahan. Si kastaba ha ahaatee, waxaa weli jira waddo dheer oo loo maro si loo gaaro kor u qaadis dhamaystiran iyo codsi dareen weyn, taas oo u baahan dadaalka wadajirka ah ee warshadaha oo dhan. Sida isbeddelka horumarinta tamarta-badbaadinta, shaashadda caadiga ah ee cathode LED waxay ku lug leedahay isticmaalka iyo kharashka hawlgalka ee korontada. Sidaa darteed, badbaadinta tamarta waxay la xiriirtaa danaha hawlwadeennada shaashadda LED-ka iyo isticmaalka tamarta qaranka.
Laga soo bilaabo xaalada hadda jirta, shaashadda caadiga ah ee cathode LED-ka tamarta-badbaadinta shaashadda ma kordhin doonto qiimaha aad u badan marka la barbardhigo shaashadda caadiga ah, waxayna badbaadin doontaa kharashyada isticmaalka dambe, taas oo si weyn loo ixtiraamo suuqa.
Waqtiga boostada: Febraayo-02-2024
