Electrolytic Capacitors yog lub ntsiab yog vim li cas rau lub neej luv luv ntawm LED teeb
Nws yog feem ntau hnov tias lub neej luv luv ntawm LED teeb yog feem ntau yog vim lub neej luv luv ntawm cov khoom siv hluav taws xob, thiab lub neej luv ntawm lub zog hluav taws xob yog vim lub neej luv luv ntawm cov hluav taws xob electrolytic capacitor. Cov lus thov no kuj ua rau muaj kev nkag siab zoo. Vim tias kev ua lag luam raug dej nyab nrog ntau lub sijhawm luv luv thiab qis dua electrolytic capacitors, ua ke nrog qhov tseeb tias tam sim no lawv tab tom sib ntaus tus nqi, qee cov tuam txhab siv cov khoom siv hluav taws xob luv luv tsis hais txog qhov zoo.
Ua ntej, lub neej ntawm electrolytic capacitor nyob ntawm qhov kub thiab txias.
Lub neej ntawm electrolytic capacitor txhais li cas? Tau kawg, nws tau txhais hauv cov xuab moos. Txawm li cas los xij, yog tias lub neej Performance index ntawm electrolytic capacitor yog 1,000 teev, nws tsis txhais hais tias electrolytic capacitor tawg tom qab ib txhiab teev, tsis yog, tab sis tsuas yog tias lub peev xwm ntawm electrolytic capacitor yog txo los ntawm ib nrab tom qab 1,000 teev, uas yog. ua 20uF. Tam sim no tsuas yog 10uF.
Tsis tas li ntawd, lub neej Performance index ntawm electrolytic capacitors kuj muaj cov yam ntxwv uas nws yuav tsum tau teev nyob rau hauv pes tsawg degrees ntawm kev ua hauj lwm ib puag ncig kub lub neej. Thiab nws yog feem ntau teev raws li lub neej ntawm 105 ° C ambient kub.
Qhov no yog vim cov electrolytic capacitors peb niaj hnub siv yog electrolytic capacitors siv kua electrolyte. Tau kawg, yog tias cov electrolyte qhuav, lub capacitance yuav ploj mus. Qhov kub siab dua, qhov yooj yim dua cov electrolyte evaporates. Yog li ntawd, lub neej Performance index ntawm electrolytic capacitor yuav tsum qhia lub neej nyob rau hauv dab tsi ambient kub.
Yog li tam sim no tag nrho cov electrolytic capacitors yog tam sim no cim ntawm 105 ° C. Piv txwv li, feem ntau cov electrolytic capacitor muaj ib tug lifespan tsuas yog 1,000 teev ntawm 105 ° C. Tab sis yog tias koj xav tias lub neej ntawm tag nrho cov electrolytic capacitor tsuas yog 1,000 teev. Qhov ntawd yuav yuam kev heev.
Cias muab tso, yog tias qhov kub thiab txias ambient siab tshaj 105 ° C, nws lub neej yuav tsawg dua 1,000 teev, thiab yog tias qhov kub thiab txias ambient qis dua 105 ° C, nws lub neej yuav ntev dua 1,000 teev. Yog li puas muaj kev sib raug zoo ntawm lub neej thiab qhov kub thiab txias? Yog lawm!
Ib qho yooj yim thiab yooj yim-rau-xam kev sib raug zoo yog tias rau txhua txhua 10 degree nce nyob rau hauv ambient kub, lub neej ncua yog txo los ntawm ib nrab; conversely, rau txhua txhua 10 degree txo nyob rau hauv ambient kub, lub neej yog ob npaug. Tau kawg qhov no tsuas yog kev kwv yees yooj yim xwb, tab sis nws kuj yog qhov tseeb heev.
Vim hais tias cov electrolytic capacitors siv rau LED tsav lub zog yog twv yuav raug hu muab tso rau hauv lub LED teeb vaj tse, peb tsuas yog yuav tsum paub qhov kub ntawm lub LED teeb kom paub lub neej ua hauj lwm ntawm lub electrolytic capacitor.
Vim hais tias nyob rau hauv ntau lub teeb lub LED thiab electrolytic capacitors tau muab tso rau hauv tib lub casing, qhov kub ntawm ib puag ncig ntawm ob tsuas yog tib yam. Thiab qhov ambient kub no feem ntau txiav txim siab los ntawm cov cua sov thiab cua txias sib npaug ntawm LED thiab lub hwj chim mov. Thiab cov cua kub thiab cua txias ntawm txhua lub teeb LED sib txawv.
Txoj kev rau ncua lub neej ntawm electrolytic capacitor
① Ntev nws lub neej los ntawm kev tsim
Nyob rau hauv qhov tseeb, txoj kev mus cuag lub neej ntawm electrolytic capacitors yog heev yooj yim, vim hais tias nws kawg ntawm lub neej yog vim lub evaporation ntawm cov kua electrolyte. Yog tias nws cov foob raug txhim kho thiab tsis tso cai rau evaporate, nws lub neej yuav raug ncua.
Tsis tas li ntawd, los ntawm kev siv lub phenolic yas npog nrog ib qho electrode nyob ib ncig ntawm nws tag nrho, thiab ob chav tshwj xeeb gasket nruj nreem nrog lub plhaub aluminium, qhov poob ntawm electrolyte kuj tuaj yeem txo qis heev.
② Ntev nws lub neej los ntawm kev siv
Txo nws cov ripple tam sim no tuaj yeem txuas ntxiv nws lub neej kev pab cuam. Yog tias qhov ripple tam sim no loj dhau, nws tuaj yeem txo qis los ntawm kev siv ob lub capacitors nyob rau hauv parallel.
Tiv thaiv electrolytic capacitor
Qee zaum txawm tias siv lub tshuab hluav taws xob electrolytic ntev ntev, nws feem ntau pom tias electrolytic capacitor tawg. Qhov no yog vim li cas? Qhov tseeb, nws tsis yog qhov xav tias qhov zoo ntawm electrolytic capacitor tsis txaus.
Vim peb paub tias nyob rau ntawm AC fais fab daim phiaj ntawm lub nroog fais fab, muaj feem ntau instant high voltage surges vim xob laim. Txawm hais tias muaj ntau yam kev tiv thaiv kev tiv thaiv xob laim tau raug coj los siv rau kev sib tsoo ntawm cov phiajcim loj loj, nws tseem yuav muaj kev cuam tshuam tsis zoo uas yuav muaj cov dej xau rau cov neeg nyob hauv tsev.
Rau LED luminaires, yog tias lawv tau siv los ntawm lub hauv paus, koj yuav tsum ntxiv cov kev ntsuas tiv thaiv kev tiv thaiv rau cov khoom siv hluav taws xob hauv lub zog ntawm lub luminaire, suav nrog fuses thiab overvoltage tiv thaiv resistors, feem ntau hu ua varistors. Tiv thaiv cov khoom nram qab no, txwv tsis pub lub neej ntev electrolytic capacitors yuav raug ntaus los ntawm qhov hluav taws xob surge.