I-Electrolytic Capacitors yisona sizathu siphambili soBomi obufutshane beZibane ze-LED
Ngokuqhelekileyo kuvakala ukuba ubomi obufutshane bezibane ze-LED ikakhulu ngenxa yobomi obufutshane bokunikezelwa kwamandla, kwaye ubomi obufutshane bokunikezelwa kwamandla ngenxa yobomi obufutshane be-electrolytic capacitor. La mabango nawo anentsingiselo ethile. Ngenxa yokuba imarike igutyungelwe ngenani elikhulu lee-electrolytic capacitors ezimfutshane kunye nezingaphantsi, kunye nenyaniso yokuba ngoku balwa nexabiso, abanye abavelisi basebenzisa ezi zincinci ze-electrolytic capacitors eziphantsi kungakhathaliseki umgangatho.
Okokuqala, ubomi be-electrolytic capacitor buxhomekeke kubushushu be-ambient.
Buchazwa njani ubomi be-electrolytic capacitor? Kakade ke, ichazwa kwiiyure. Nangona kunjalo, ukuba isalathisi sobomi be-electrolytic capacitor yiyure ezili-1,000, oko akuthethi ukuba i-electrolytic capacitor yaphukile emva kweeyure eziliwaka, hayi, kodwa kuphela ukuba umthamo we-electrolytic capacitor uyancitshiswa ngesiqingatha emva kweeyure eziyi-1,000, eziye zaphuhliswa. ekuqaleni 20uF. Ngoku yi-10uF kuphela.
Ukongeza, isalathiso sobomi be-electrolytic capacitors nayo inophawu ekufuneka ichazwe ukuba zingaphi iidigri zobomi bobushushu bendawo yokusebenza. Kwaye ihlala ichazwa njengobomi obukwi-105 ° C kwiqondo lobushushu lendawo.
Oku kungenxa yokuba ii-electrolytic capacitors esiqhele ukuzisebenzisa namhlanje zii-electrolytic capacitors zisebenzisa i-electrolyte engamanzi. Ngokuqinisekileyo, ukuba i-electrolyte yomile, i-capacitance ngokuqinisekileyo iya kudlula. Xa liphezulu iqondo lobushushu, kokukhona i-electrolyte iba ngumphunga ngokulula. Ngoko ke, isalathisi sobomi be-electrolytic capacitor kufuneka sibonise ubomi phantsi kweyiphi iqondo lokushisa.
Ngoko zonke ii-capacitors ze-electrolytic okwangoku ziphawulwe kwi-105 ° C. Ngokomzekelo, i-electrolytic capacitor eqhelekileyo inobomi beeyure eziyi-1,000 kuphela kwi-105 ° C. Kodwa ukuba ucinga ukuba ubomi bazo zonke ii-electrolytic capacitors ziiyure ezingama-1,000 kuphela. Oko kuya kuba kuphosakele kakhulu.
Ukubeka nje, ukuba ubushushu be-ambient bungaphezulu kwe-105 ° C, ubomi bayo buya kuba ngaphantsi kweeyure ze-1,000, kwaye ukuba ubushushu be-ambient bungaphantsi kwe-105 ° C, ubomi bayo buya kuba ngaphezu kweeyure ze-1,000. Ke ngaba kukho ubudlelwane oburhabaxa bobungakanani phakathi kobomi kunye nobushushu? Ewe!
Olunye lolona nxulumano lulula nolulula ukulubala kukuba kwiqondo ngalinye le-10 lokunyuka kobushushu be-ambient, ubude bobomi buncitshiswa ngesiqingatha; ngokuchaseneyo, kuyo yonke i-10 degree yehla kwiqondo lobushushu le-ambient, ixesha lokuphila liphindwe kabini. Ewe olu luqikelelo olulula, kodwa lukwachanekile.
Ngenxa yokuba i-electrolytic capacitors esetyenziselwa amandla okuqhuba i-LED ibekwe ngokuqinisekileyo ngaphakathi kwindlu yesibane se-LED, kufuneka sazi kuphela ubushushu ngaphakathi kwesibane se-LED ukuze sazi ubomi bokusebenza kwe-electrolytic capacitor.
Ngenxa yokuba kwizibane ezininzi i-LED kunye ne-electrolytic capacitors zibekwe kwi-casing efanayo, ubushushu bendalo bezinto ezimbini bufana nje. Kwaye obu bushushu be-ambient buchongwa ikakhulu ngokufudumeza kunye nokupholisa ibhalansi ye-LED kunye nokunikezelwa kwamandla. Kwaye iimeko zokufudumeza kunye nokupholisa kwesibane ngasinye se-LED zihlukile.
Indlela yokwandisa ubomi be-electrolytic capacitor
① Yandisa ubomi bayo ngokuyila
Enyanisweni, indlela yokwandisa ubomi be-electrolytic capacitors ilula kakhulu, kuba isiphelo sayo sobomi sibangelwa ubukhulu becala ngenxa yokuphuma kwe-electrolyte engamanzi. Ukuba uphawu lwayo luphuculwe kwaye aluvunyelwa ukuba lube ngumphunga, ubomi bayo buya kwandiswa.
Ukongeza, ngokuthatha isigqubuthelo seplastiki ye-phenolic kunye ne-electrode ejikeleze yonke, kunye ne-gasket ekhethekileyo ephindwe kabini ehlanganiswe ngokuqinileyo kunye negobolondo le-aluminium, ukulahlekelwa kwe-electrolyte kunokunciphisa kakhulu.
② Yandisa ubomi bayo ekusetyenzisweni
Ukunciphisa i-ripple current nako kunokwandisa ubomi bayo benkonzo. Ukuba i-ripple current inkulu kakhulu, inokuncitshiswa ngokusebenzisa i-capacitors ezimbini ngokuhambelanayo.
Ukukhusela i-electrolytic capacitors
Ngamanye amaxesha nangona i-electrolytic capacitor yexesha elide isetyenzisiweyo, isoloko ifunyenwe ukuba i-electrolytic capacitor yaphukile. Siyintoni isizathu soku? Enyanisweni, akulunganga ukucinga ukuba umgangatho we-electrolytic capacitor ayanele.
Kuba siyazi ukuba kwigridi yamandla e-AC yamandla esixeko, kuhlala kukho ukunyuka kwamandla ombane aphezulu ngoko nangoko ngenxa yokubetha kombane. Nangona iindlela ezininzi zokukhusela umbane ziye zaphunyezwa ukubetha kombane kwiigridi zamandla amakhulu, kusengenakuphepheka ukuba kuya kubakho ukuvuza kwenetha kubahlali Ekhaya.
Kwii-luminaires ze-LED, ukuba zinikwe amandla ngamabhobhothi, kufuneka udibanise amanyathelo okulwa nokunyuka kwii-terminals zokufaka i-input kumandla ombane we-luminaire, kubandakanywa i-fuses kunye ne-resistors yokukhusela i-overvoltage, ebizwa ngokuba yi-varistors. Khusela amacandelo alandelayo, ngaphandle koko i-electrolytic capacitors yexesha elide iya kuhlatywa ngumbane wokunyuka.