Ungalibheka Kanjani Iphutha Le-Diode Lamp Bead ekhipha ukukhanya

Yisiphi isizathu esenza ukuthi ubuhlalu besibani bungakhanyi ebhodini lesekethe? Ungahlola kanjani? Okokuqala, hlola ukuthi ngabe isifunda sisetshenziswa ngokujwayelekile, bese wenza ukuhlaziya okuthile okusekelwe kumjikelezo othize. Kodwa-ke, izizathu eziningi ukuthi ama-LED athole ngephutha i-polarity elungile nengalungile ye-LED ngesikhathi sokufakwa noma inqubo yokushisela ngaphambi kokufakwa. I-welding yangempela ayinamandla), i-welding ebonakalayo iyisizathu esiyinhloko sokwehluleka, ikakhulukazi kwabaqalayo abangenalo ulwazi lokushisela. Le nkinga kungenzeka kakhulu. Kungenzeka futhi ukuthi ukuvuza kwe-iron kagesi kubangela i-LED breakthrough short circuit. Kunengxenye yengxenye yesifunda sokushayela ukuxhuma noma ukushisela kahle, futhi ezinye izifunda zingase zibe ukuthi inani lengxenye yokulungisa alilungiswanga kahle. Ngaphambi kokufakwa kwesekethe, hlola isheke futhi uhlole ngokucophelela ngaphambi kwamandla. Uma ukukhanya kungavuliwe, amandla kufanele avaliwe ngokushesha, bese ukuhlolwa kufanele kwenziwe. Awukwazi ukungqongqoza ebhodini lesekhethi ukuze uzame ukuthola iphutha. ngale ndlela. Uma kuyisifunda esine-filter capacitor, okokuqala, kufanele futhi usebenzise i-screwdriver noma ucingo ukuze ukhiphe izinyawo ezimbili ze-filter capacitor ngaphambi kokuyihlola. Lesi sinyathelo sibaluleke kakhulu! Ngoba i-capacitor yesihlungi ine-voltage ephezulu ephindwe izikhathi ezingaphezu kuka-1.4 amandla kagesi (ngaphezu kwezikhathi eziyi-1.4 i-voltage yokuphakelwa kwamandla (Isibonelo, lapho ukunikezwa kwamandla ka-220V kungaba phezulu ku-310V), ukuze kungalimazi umzimba womuntu. noma ucekele phansi i-LED uma i-capacitance isinda ku-capacitor noma ngesikhathi isekethe ixhunyiwe! Maka, hlola ukuthi i-polarity ngayinye ye-LED ayilungile yini, bese usebenzisa amabhethri amabili ukuxhuma amandla e-bipolar positive kanye nenegethivu ukuze uthinte izinyawo ezimbili ze i-LED ngayinye. Naka i-polarity yamandla ebhethri njenge-polarity ye-LED, ukuze usebenzise i-polarity ye-LED, ukuze Uhlole ukuthi i-LED ngayinye ingakhanya yini. Ukuhlolwa kwesifunda sokushayela, kufanele uhlole ngokucophelela ukuthi isifunda singalungile ngokusho komdwebo wesifunda. Naka ngokukhethekile ukuhlola ibhuloho lokulungisa kabusha (unyawo olude luwumphumela omuhle we-electrode, idayagonali iwukukhipha i-electrode eyinegethivu, ezinye izinyawo ezimbili ziyi-AC input) noma i-rectifier diode, kanye nepayipi le-voltage diode ye-voltage Ukuthi i-polarity ilungile yini. (isiphetho esisodwa esinomugqa omnyama noma omhlophe sinegethivu), bese uhlola ukuthi ama-electrode amathathu e-crystal triode noma i-voltage integrated circuit ayilungile yini. Kulungile, incazelo ye-glow diode isilapha,