Mosebetsing oa pontšo ea mebala e felletseng ea LED, mosebetsi oa mokhanni oa IC ke ho amohela data ea ponts'o (ho tsoa ho karete e amohelang kapa processor ea video le mehloli e meng ea tlhaiso-leseling) e lumellanang le protocol, ho hlahisa PWM ka hare le liphetoho tsa nako ea hajoale, 'me u khatholle tlhahiso le bohlooho bo khanyang.le maqhubu a mang a amanang le PWM ho bonesa li-LED.IC ea peripheral e entsoeng ka mokhanni IC, logic IC le MOS switch e sebetsa 'moho tšebetsong ea ponts'o ea LED mme e lekanya phello ea ponts'o eo e e hlahisang.
Lichifi tsa mokhanni oa LED li ka aroloa ka li-chips tsa sepheo se akaretsang le li-chips tsa sepheo se ikhethileng.
Seo ho thoeng ke kakaretso-morero chip, chip ka boeona ha e etselitsoe LED ka ho khetheha, empa li-chips tse ling tsa logic tse nang le ts'ebetso e itseng ea skrine ea pontšo ea LED (joalo ka letoto-2-parallel shift register).
Chip e khethehileng e bua ka chip ea mokhanni e etselitsoeng pontšo ea LED ka ho khetheha ho latela litšobotsi tse khanyang tsa LED.LED ke sesebelisoa sa hona joale se khethollang, ke hore, tlas'a motheo oa tsamaiso ea saturation, khanya ea eona e fetoha le phetoho ea hona joale, ho e-na le ho fetola motlakase ho eona.Ka hona, e 'ngoe ea likarolo tse kholo ka ho fetisisa tsa chip e inehetseng ke ho fana ka mohloli oa kamehla oa hona joale.Mohloli oa kamehla oa hona joale o ka etsa bonnete ba ho khanna ka mokhoa o tsitsitseng oa LED le ho felisa ho panya ha LED, e leng ntho e hlokahalang bakeng sa pontšo ea LED ho bontša litšoantšo tsa boleng bo phahameng.Li-chips tse ling tsa morero o khethehileng li boetse li eketsa mesebetsi e khethehileng bakeng sa litlhoko tsa liindasteri tse fapaneng, tse kang ho lemoha liphoso tsa LED, taolo ea hona joale ea phaello le tokiso ea hona joale.
Evolution ea mokhanni IC:
Lilemong tsa bo-1990, lisebelisoa tsa pontšo ea LED li ne li laoloa ke mebala e le 'ngoe le e' meli, 'me ho ne ho sebelisoa li-IC tsa mokhanni oa motlakase.Ka 1997, chip ea pele e inehetseng ea ho laola koloi ea 9701 bakeng sa lipontšo tsa LED e ile ea hlaha naheng ea heso, e neng e tloha ho 16-level grayscale ho ea ho 8192-level grayscale, ho lemoha WYSIWYG bakeng sa video.Ka mor'a moo, ka lebaka la litšobotsi tse hlahisang khanya ea LED, mokhanni oa kamehla oa hona joale e se e le khetho ea pele bakeng sa mokhanni oa pontšo ea LED ea mebala e feletseng, 'me mokhanni oa mochine oa 16 ea nang le kopanyo e phahameng o nkile sebaka sa mokhanni oa 8-channel.Ho elella bofelong ba lilemo tsa bo-1990, lik'hamphani tse kang Toshiba Japane, Allegro le Ti United States li ile tsa qala ka ho latellana li-drive tsa morao-rao tse 16 tsa LED.Matsatsing ana, molemong oa ho rarolla bothata ba lithapo tsa PCB tsa li-skrini tsa LED tse nyane, bahlahisi ba bang ba IC ba kentse li-chips tsa mokhanni tse sa fetoheng tsa 48-channel LED.
Matšoao a ts'ebetso ea mokhanni IC:
Har'a matšoao a ts'ebetso ea ponts'o ea LED, sekhahla sa ho khatholla, boemo ba bohlooho le ho hlahisa litšoantšo ke e 'ngoe ea matšoao a bohlokoahali.Sena se hloka botsitso bo phahameng ba hona joale lipakeng tsa liteishene tsa IC tsa mokhanni oa LED, sekhahla sa khokahanyo ea lebelo le holimo le lebelo la karabelo le sa feleng.Nakong e fetileng, sekhahla sa ho khatholla, sekhahla se bohlooho le karolelano ea tšebeliso e ne e le likamano tsa khoebo.Ho etsa bonnete ba hore matšoao a le mong kapa a mabeli a ka ba betere, hoa hlokahala ho etsa sehlabelo ka nepo tse peli tse setseng.Ka lebaka lena, ho thata hore lipontšo tse ngata tsa LED li be le tse ntle ka ho fetisisa lefatšeng ka bophara lits'ebetsong tse sebetsang.E ka 'na eaba sekhahla sa ho khatholla ha sea lekana,' me mela e metšo e atisa ho hlaha ha ho thunngoa ka thepa ea lik'hamera tse lebelo, kapa bohlooho ha bo lekaneng, 'me' mala le khanya ha li lumellane.Ka tsoelo-pele ea theknoloji ea baetsi ba IC bakhanni, ho bile le katleho mathateng a mararo a phahameng, 'me mathata ana a rarollotsoe.
Ts'ebelisong ea ponts'o ea mebala e felletseng ea LED, molemong oa ho etsa bonnete ba hore mahlo a mosebelisi a tšelisa nako e telele, khanya e tlase le bohlooho bo phahameng e se e le maemo a bohlokoa haholo ho leka ts'ebetso ea mokhanni oa IC.
Nako ea poso: Oct-09-2022