Mubasa reiyo LED yakazara-ruvara kuratidza, basa remutyairi IC nderekugamuchira data rekuratidzira (kubva pakadhi rekugamuchira kana vhidhiyo processor uye mamwe masosi eruzivo) inoenderana neprotocol, mukati inogadzira PWM uye ikozvino nguva shanduko, uye zorodza zvinobuda uye kupenya kwegreyscale.uye mamwe ane hukama PWM mafungu ekuvhenekera ma LED.Iyo yeperipheral IC inoumbwa nemutyairi IC, logic IC uye MOS switch inoshanda pamwe chete pane yekuratidzira basa reiyo LED kuratidza uye inosarudza maitiro ekuratidzira ayo anounza.
LED mutyairi machipisi anogona kukamurwa kuita zvakajairika-chinangwa machipisi uye yakakosha-chinangwa machipisi.
Iyo inonzi general-chinangwa chip, iyo chip pachayo haina kurongedzerwa LED, asi mamwe logic machipi ane mamwe logic mabasa eLED kuratidza skrini (seyakatevedzana-2-parallel shift register).
Iyo yakakosha chip inoreva mutyairi chip yakanyatso kugadzirirwa iyo LED kuratidza zvinoenderana neinopenya maitiro eiyo LED.LED ndiyo yazvino hunhu mudziyo, ndiko kuti, pasi pechimiro chekuzadza conduction, kupenya kwayo kunoshanduka nekuchinja kwezvino, pane kugadzirisa voltage pairi.Naizvozvo, chimwe chezvakanyanya maficha eiyo yakatsaurirwa chip ndeyekupa inogara iripo sosi.Iyo inogara iripo ikozvino sosi inogona kuve yakagadzikana kutyaira kweiyo LED uye kubvisa kupenya kweiyo LED, inova ndiyo inodiwa kuti iyo LED inoratidzira kuratidza mifananidzo yemhando yepamusoro.Mamwe akakosha-chinangwa machipi anowedzera mamwe akakosha mabasa kune zvinodikanwa zvemaindasitiri akasiyana, sekuona LED kukanganisa, ikozvino kuwana kutonga uye kururamisa kwazvino.
Evolution yemutyairi IC:
Mumakore ekuma1990, mashandisirwo ekuratidzira kwe LED aitongwa neruvara rumwechete uye ruviri, uye anogara ari voltage driver ICs akashandiswa.Muna 1997, yekutanga yakatsaurirwa dhiraivha yekudzora chip 9701 yekuratidzira kweLED yakaonekwa munyika yangu, iyo yakatambanudzwa kubva pa16-level greyscale kusvika 8192-level grayscale, ichiziva WYSIWYG yevhidhiyo.Zvadaro, tichifunga nezve LED chiedza-emitting maitiro, anogara aripo iye zvino mutyairi yave sarudzo yekutanga kune yakazara-ruvara LED kuratidza mutyairi, uye 16-chiteshi mutyairi ane yakakwirira kubatanidzwa akatsiva 8-chiteshi mutyairi.Mukupera kwema1990, makambani akadai saToshiba kuJapan, Allegro neTi muUnited States akatevedzana akatanga 16-channel LED inogara iripo machipisi ekutyaira.Mazuva ano, kuitira kugadzirisa dambudziko rePCB wiring yediki-pitch LED kuratidza, vamwe mutyairi IC vagadziri vakaunza yakanyanya kusanganiswa 48-channel LED inogara iripo mutyairi machipisi.
Performance zviratidzo zvemutyairi IC:
Pakati pezviratidzo zvekushanda zvekuratidzira kwe LED, chiyero chekuzorodza, grey level uye kuratidzwa kwemufananidzo ndechimwe chezviratidzo zvakakosha.Izvi zvinoda kuenderana kwezvino pakati pe LED kuratidza mutyairi IC chiteshi, yakakwirira-kumhanya kutaurirana interface mwero uye inogara iripo yekupindura kumhanya.Kare, mwero wekuzorodza, grey chiyero uye reshiyo yekushandisa yaive hukama hwekutengeserana.Kuve nechokwadi chekuti imwe kana mbiri yezviratidzi inogona kuve nani, zvinodikanwa kubayira zvakasara zviratidzo zviviri.Nechikonzero ichi, zvakaoma kune akawanda ma LED anoratidza kuti ave neakanakisa epasirese mune anoshanda maapplication.Pamwe chiyero chekuvandudza hachina kukwana, uye mitsetse mitema inowanzoitika pakupfura neyakakura-kumhanya kamera michina, kana greyscale haina kukwana, uye ruvara uye kupenya hazvienderane.Nekufambira mberi kwetekinoroji yevatyairi IC vagadziri, kwave nekubudirira mumatambudziko matatu makuru, uye matambudziko aya akagadziriswa.
Mukushandiswa kwe LED yakazara-ruvara kuratidza, kuitira kuti ive nechokwadi chekunyaradza ziso remushandisi kwenguva yakareba, kupenya kwakaderera uye grey yakakwirira yave yakanyanya kukosha chiyero chekuyedza mashandiro emutyairi IC.
Nguva yekutumira: Oct-09-2022