Ikigezweho cyaLEDkwiyongera kubera impamvu zitandukanye zikoreshwa. Muri iki gihe, hagomba gufatwa ingamba zo gukingira kugirango LED itangirika kuko amashanyarazi yiyongereye arenze igihe runaka na amplitude. Gukoresha ibikoresho byo kurinda umuzunguruko nicyo gipimo cyibanze kandi cyubukungu. Ikintu gikunze gukoreshwa kurinda ibintu kuriItarakurinda umuziki ni varistor.

Varistor ikoreshwa mukurinda amatara ya LED. Birashobora kuvugwa ko uko byagenda kose amashanyarazi, guhinduranya amashanyarazi no gutanga umurongo wumurongo bikoreshwa mumatara ya LED, ubwo burinzi burasabwa. Irakoreshwa mukurinda umuyaga mwinshi ukunze kugaragara kumurongo wamashanyarazi. Ibyo bita voltage nini cyane cyane mugihe gito gito-voltage nini iterwa numurabyo cyangwa gutangira no guhagarika ibikoresho byamashanyarazi menshi. Inkuba niyo mpamvu nyamukuru. Inkuba irashobora kugabanywamo inkuba itaziguye no gukubita inkuba itaziguye. Inkuba itaziguye bivuze ko inkuba ikubise umuyoboro utanga amashanyarazi mu buryo butaziguye, bikaba bidasanzwe, kandi sisitemu nini nini zitanga amashanyarazi zifite ingamba zo kurinda inkuba ubwazo. Inkuba itaziguye bivuga umuvuduko ukwirakwizwa kuri gride y'amashanyarazi iterwa n'umurabyo. Uku kwiyongera birashoboka cyane ko kubaho, kubera ko inkuba 1800 ninkuba 600 bibaho kwisi yose buri kanya. Buri nkuba izatera voltage hejuru yumuriro w'amashanyarazi uri hafi. Ubugari bwa surge pulse mubisanzwe ni bike gusa cyangwa bigufi, kandi amplitude ya pulse irashobora kuba hejuru ya volt ibihumbi. Ahanini kubera amplitione yayo, ifite ingaruka zikomeye ku kwangiza ibikoresho bya elegitoroniki. Hatabayeho gukingirwa, ibikoresho byose bya elegitoronike biroroshye kwangirika. Kubwamahirwe, kurinda surge biroroshye cyane. Gusa ongeraho anti-surge varistor, ubusanzwe ihujwe kuburinganire mbere yo gukosora.

Ihame ryiyi varistor niyi ikurikira: hariho umurongo utarwanya umurongo urwanya imbaraga zegeranye n’umuzunguruko ufunguye mu ntera yagenwe, kandi iyo ingufu zashyizwe hejuru zirenze imbibi, irwanya imbaraga zayo hafi ya zeru ako kanya. Ibi bituma byoroha gukuramo. Byongeye kandi, varistor nigikoresho gishobora kugarurwa. Nyuma yo kwinjizwa cyane, birashobora noneho kugira uruhare mukurinda.