Umushoferi wa Meanwell: Igishushanyo gihoraho cyumushoferi wa LED
Vuba aha, imwe mu ngingo zizwi cyane mu nganda za LED ni amashanyarazi ahoraho ya LED. Kuki LED igomba gutwarwa numuyoboro uhoraho? Kuki badashobora gutwarwa n'imbaraga zihoraho? Mbere yo kuganira kuri iki kibazo, tugomba mbere na mbere gusobanukirwa impamvu LED igomba gutwarwa nigihe gihoraho. Nkuko bigaragazwa nigishushanyo cya LED umurongo, iyo voltage yimbere ya LED ihindutse kuri 2,5%, umuyoboro unyuze kuri LED uzahinduka hafi 16%, naho voltage yimbere ya LED yibasiwe nubushyuhe. Itandukaniro ryubushyuhe hagati yubushyuhe buke nubushyuhe bizatera amashanyarazi. Itandukaniro rya voltage rirenga 20%. Mubyongeyeho, umucyo wa LED uringaniza imbere yimbere ya LED. Itandukaniro ryinshi ryubu rizaganisha kumucyo ukabije, LED rero igomba gutwarwa numuyoboro uhoraho. Ariko, imbaraga zihoraho zishobora gukoreshwa kuri LED? Ubwa mbere, ikibazo cyo kumenya niba imbaraga zihoraho zingana no guhorana umucyo biraganirwaho. Duhereye ku kuganira gusa ku gishushanyo mbonera cya buri gihe amashanyarazi, ihinduka rya LED nubushyuhe bwo kugabanuka bisa nkaho bishoboka. Ni ukubera iki uwakoze umushoferi wa LED adashushanya mu buryo butaziguye umushoferi uhoraho? Hariho impamvu nyinshi zirimo. Ntabwo bigoye gushushanya amashanyarazi ahoraho. Nibyiza cyane gukoresha MCU (Micro Controller Unit) kugirango tumenye ibisohoka voltage nubu, kugenzura igihe cyinshingano za PWM (Pulse Width Modulation) ukoresheje kubara gahunda, no kugenzura ingufu zisohoka kumurongo wubururu uhoraho wumurongo wumurongo . Imbaraga zihoraho zishobora kugerwaho, ariko ubu buryo bwongera ibiciro byinshi, kandi mugihe habaye kwangirika kwumuzunguruko mugihe gito, umushoferi uhoraho LED umushoferi azongera amashanyarazi kubera gutahura voltage yo hasi, ishobora guteza ingaruka mbi cyane. Mubyongeyeho, ubushyuhe buranga LED ni coefficient yubushyuhe bubi. Iyo ubushyuhe buri hejuru, turateganya kugabanya ibisohoka kugirango dukomeze imikorere yubuzima burebure bwa LED. Nyamara, uburyo bwimbaraga bwimbaraga budahuye niki gitekerezo. Mu bushyuhe bwo hejuru bwo gukoresha LED, ibisohoka bya shoferi ya LED byiyongera kubera gutahura voltage nkeya. Urebye ibintu byose byavuzwe haruguru, nigisubizo cyiza cyane cyo guha abakiriya "quasi-burigihe imbaraga" umushoferi wa LED hamwe na voltage yagutse / ibisohoka.
Imbaraga zihoraho LED umushoferi wanditswemo nibicuruzwa bimwe na bimwe bya Meanwell akoresha ubu bwoko bwimbaraga zihoraho zo gushushanya bidasanzwe. Ikigamijwe ni uguha abakiriya intera nini ya voltage / ibyasohotse bisohoka-bihoraho imbaraga LED umushoferi. Ntishobora kuzirikana gusa ibyo abakoresha bakeneye kandi ikirinda kwiyongera kw'ibiciro biterwa no gushushanya birenze urugero cyangwa ibibazo biterwa n'ibiranga LED, ariko kandi bigatera no kunanirwa kw'itara kandi bitanga quasi-ihoraho. Igishushanyo mbonera cyibicuruzwa byamashanyarazi birashobora kuvugwa ko aricyo gisubizo cyiza cyo gutanga amashanyarazi ya LED ku isoko muri iki gihe.