Dab tsi yog qhov cuam tshuam ntawm hluav taws xob zoo li qub ntawm LED teeb hlaws
Nws feem ntau ntsib tias LED tsis teeb. Qhov no yog lub teeb pom kev tuag uas cov neeg hauv kev lag luam hais. Cov hluav taws xob zoo li qub ua rau cov nti LED puas, ua rau PN kev sib tshuam ntawm LED nti tsis raug, thiab tiv thaiv hluav taws xob zoo li qub los ntawm kev puas tsuaj rau cov khoom siv hluav taws xob. Ib qho teeb meem hauv ib qho kev sib txuas yuav ua rau kev puas tsuaj rau LED, thiab ua rau kev ua haujlwm ntawm LED tsis zoo los yog ua tsis tau. Tib neeg lub cev (ESD) hluav taws xob zoo li qub tuaj yeem ncav cuag peb kilovolts, uas yog txaus los rhuav tshem thiab ua rau cov nti LED puas. Ntau hom khoom siv feem ntau xav tau av tsis kam ntawm 4 ohms, thiab qee qhov xav tau av tsis kam ntawm ≤ 2 ohms. Kev ntsuas av tiv thaiv yuav tsum tau ua ib hlis ib zaug. Cov hluav taws xob zoo li qub ntawm tib neeg lub cev tuaj yeem ua rau muaj kev puas tsuaj loj rau LED. Hnav khaub ncaws los tiv thaiv zoo li qub thiab hnav lub nplhaib electrostatic. Lub nplhaib zoo li qub yuav tsum tau zoo hauv av. Tus nqi hluav taws xob zoo li qub ntawm tib neeg lub cev muaj feem cuam tshuam nrog cov khaub ncaws sib txawv ntawm tus neeg hnav thiab txhua tus neeg' lub cev lub cev. , ESD tus nqi ntawm silicon carbide substrate nti tsuas yog 1100 volts, thiab ESD tus nqi ntawm sapphire substrate nti tsuas yog 500-600 volts. Qee lub sij hawm ib lub cuab yeej zoo yog inexplicably tawg los ntawm peb txhais tes, uas yog tshwm sim los ntawm hluav taws xob zoo li qub.
Qhov kub ntawm cov hlau zoo tib yam tuaj yeem tswj tsis tau. Lub soldering hlau kub yog siab tshaj 300-400 ℃. Qhov kub thiab txias ntau dhau tuaj yeem ua rau lub teeb tuag. Lub expansion coefficient ntawm LED ua nyob rau hauv high kub yog ob peb zaug siab tshaj qhov expansion coefficient ntawm txog 150 ℃. Cov hlau kub sab hauv Cov pob qij txha yuav raug rub tawm vim yog thermal expansion thiab contraction ntau dhau, ua rau lub teeb tuag.
Qhov ua rau lub teeb tuag tshwm sim los ntawm qhov qhib Circuit Court ntawm cov pob qij txha hauv kev sib txuas sab hauv ntawm LED teeb tau muab faib ua cov txheej txheem ntim tsis tiav thiab cov txheej txheem tshuaj xyuas rov qab yog qhov ncaj qha ua rau LED tuag lub teeb. Cov pob qij txha tau sib cais los ntawm lub bracket, uas ua rau lub teeb tuag tshwm sim. Qhov no yog qhov peb ntsib thaum lub teeb tsis tig thaum nws siv tau zoo. Qhov tseeb, cov pob qij txha sab hauv tau raug tshem tawm ntawm lub bracket.
Txhua txheej txheem yuav tsum ua tib zoo ua haujlwm. Kev tsis saib xyuas ntawm ib qho txuas yog qhov ua rau lub teeb tuag. Yog hais tias cov kua nplaum insulating siv ntau dhau lawm, nws yuav rov qab mus rau lub ncoo kub ntawm cov nti, uas ua rau lub ntsej muag cuav thaum lub sijhawm soldering thiab yog li lub teeb tuag. Yog li, qhov kev faib tawm yuav tsum yog qhov tseeb, tsis yog ntau lossis tsawg. Txhua xyoo, ntau yam tsis sib xws ntawm kub hlau pob welding tshuab yuav tsum raug kuaj thiab kho kom ntseeg tau tias cov vuam tsis zoo nyob rau hauv qhov zoo tshaj plaws. Tsis tas li ntawd, lub arc ntawm cov hlua khi kuj tseem xav tau. Lub arc qhov siab ntawm ib qho kev sib koom ua ke yog 1.5-2 nti tuab, thiab qhov siab arc ntawm ob qhov sib txuas nti yog 2-3 nti tuab. Qhov siab ntawm arc kuj yuav ua rau LED teeb pom kev zoo, thiab lub arc yog siab. Tsawg dhau yuav ua rau lub teeb tuag tau yooj yim thaum vuam, thiab siab dhau ntawm arc yuav ua rau tsis zoo rau qhov cuam tshuam tam sim no.
