Pambuyo pazaka zachitukuko, chiwonetsero chazodziwika bwino cha anode LED chapanga unyolo wokhazikika wamakampani, zomwe zapangitsa kuti chiwonetsero cha LED chichuluke.Komabe, ilinso ndi zovuta zina, kutentha kwambiri kwa skrini komanso kugwiritsa ntchito mphamvu kwambiri.Pambuyo kuoneka wamba cathode LED anasonyeza mphamvu luso, izo wakopa chidwi kwambiri mu msika anasonyeza LED.Njira yoperekera mphamvuyi imatha kupulumutsa mphamvu zokwana 75%, ndiye ukadaulo wamagetsi wawonetsero wamba wa cathode LED ndi chiyani?Kodi ubwino wa luso limeneli ndi chiyani?
Kodi ubwino wa luso magetsi wamba cathode LED anasonyeza
1. Kodi chowonetsera bwino cha cathode LED ndi chiyani?
"Common cathode" amatanthauza njira wamba yamagetsi ya cathode.M'malo mwake, iyi ndiukadaulo wopulumutsa mphamvu pazowonetsa za LED.Zimatanthawuza kugwiritsa ntchito cathode wamba kuyatsa chiwonetsero cha LED.B (yofiira, yobiriwira, yabuluu) imalekanitsa magetsi, ndikugawa molondola mphamvu zamakono ndi magetsi a R, G, B mikanda ya nyali, chifukwa mikanda ya nyale ya R, G, B (yofiira, yobiriwira, yabuluu) iyenera kugwira ntchito bwino. voteji, ndi panopa ndi osiyana, Choncho, panopa adzadutsa choyamba mkanda nyali, ndiyeno kufika mzati zoipa za IC, kuchepetsa kutsogolo voteji dontho ndi kuchepetsa conduction kukana mkati.
2. Kodi pali kusiyana kotani pakati pa cathode wamba ndi mawonedwe wamba a anode LED?
①.Njira zosiyanasiyana zoperekera magetsi:
Nthawi zambiri amagwiritsidwa ntchito cathode mphamvu njira ndi kuti panopa woyamba akudutsa mu nyali mkanda ndiyeno kufika mzati zoipa wa dera Integrated, kotero kuti kutsogolo voteji dontho amakhala ang'onoang'ono ndi pa-kukana amakhala ang'onoang'ono.
The anode wamba ndi panopa ikuyenda kuchokera PCB bolodi kwa mikanda nyali, ndi wogawana amapereka mphamvu kwa R, G, B (wofiira, wobiriwira, buluu), kotero kuti kutsogolo voteji dontho la dera amakhala lalikulu.
②.Mphamvu yamagetsi ndi yosiyana:
Cathode wamba, perekani panopa ndi voteji kwa R, G, B (wofiira, wobiriwira, buluu), motero.Ma LED ofiira, obiriwira ndi a buluu ali ndi zofunikira zosiyana siyana.Magetsi a mikanda yofiira ya nyali ndi pafupifupi 2.8V, ndipo voteji ya mikanda yabuluu ndi yobiriwira imakhala pafupifupi 3.8V, magetsiwa amatha kukwaniritsa mphamvu zenizeni ndi magetsi.Chifukwa cha zotayika zing'onozing'ono, kutentha komwe kumapangidwa ndi chiwonetsero cha LED panthawi yogwira ntchito kumakhala kochepa kwambiri.
Cathode wamba ayenera kupereka R, G, B (wofiira, wobiriwira, wabuluu) mphamvu yolumikizana yoposa 3.8V (monga 5V).Panthawi imeneyi, voteji akalandira ofiira, wobiriwira ndi buluu ndi yunifolomu 5V, pamene wofiira, wobiriwira, The mulingo woyenera kwambiri ntchito voteji chofunika ndi atatu buluu mikanda nyali ndi otsika kwambiri kuposa 5V.Malingana ndi njira ya mphamvu P = UI, pansi pa zomwe zikuchitika nthawi zonse, mphamvu yamagetsi imakhala yokwera kwambiri, mphamvu yowonjezera mphamvu, ndiko kuti, kugwiritsira ntchito mphamvu kwambiri, pamene chiwonetsero cha LED chikugwira ntchito Kutentha kwambiri kumapangidwa panthawiyi.
3. N'chifukwa chiyani kutentha wamba cathode LED anasonyeza kutsika?
Njira yapadera yamagetsi yamagetsi ya cathode ya chinsalu chozizira imapangitsa kuti mawonekedwe a LED apangitse kutentha pang'ono komanso kukwera kwa kutentha.Nthawi zonse, panthawi yoyera komanso kusewera mavidiyo, kutentha kwa chinsalu chozizira kumakhala pafupifupi 20 ° C kutsika kusiyana ndi mawonekedwe akunja a LED amtundu womwewo.Pansi pa mfundo zomwezo ndi kuwala komweko, kutentha kwa chinsalu cha mawonedwe amtundu wa cathode LED ndi madigiri oposa 20 kuposa amtundu wamba wa anode LED, ndipo mphamvu yogwiritsira ntchito ndi 50% yotsika kuposa ya anode wamba yowonetsera LED.
Kutentha kwakukulu kwa chiwonetsero cha LED komanso kugwiritsa ntchito mphamvu mopitirira muyeso nthawi zonse zakhala zinthu zazikulu zomwe zimakhudza moyo wautumiki wa chiwonetsero cha LED."Common cathode LED display" ikhoza kuthetsa mavuto awiriwa.
4. Kodi ubwino wamba wamba cathode LED anasonyeza?
e magetsi amapulumutsadi mphamvu:
Wamba cathode mankhwala kutengera yeniyeni mphamvu mphamvu luso, malinga ndi osiyana optoelectronic makhalidwe a mitundu itatu yaikulu ya LED wofiira, wobiriwira ndi buluu, pamodzi ndi wanzeru IC kulamulira dongosolo ndi odzipatulira mode odzipatulira, ma voltages osiyanasiyana a LED ndi dera galimoto ndi molondola. allocated, kotero kuti mowa mphamvu ya mankhwala ndi mkulu.Zogulitsa zofanana pamsika zimapulumutsa pafupifupi 40%!
②.Kupulumutsa mphamvu kwenikweni kumabweretsa mtundu weniweni:
Njira yoyendetsera galimoto yomwe imagwiritsidwa ntchito kwambiri ya cathode LED imatha kuwongolera voteji, pomwe imachepetsa kugwiritsa ntchito mphamvu ndi kutulutsa kutentha, kutalika kwa mafunde a LED sikungatengeke panthawi yogwira ntchito mosalekeza, ndipo mtundu weniweni ukhoza kuwonetsedwa mokhazikika!
③.Kupulumutsa mphamvu kwenikweni kumabweretsa moyo wautali:
Kugwiritsa ntchito mphamvu kumachepetsedwa, kukwera kwa kutentha kwa dongosololi kumachepetsedwa kwambiri, kuthekera kwa kuwonongeka kwa LED kumachepetsedwa bwino, kukhazikika ndi kudalirika kwa mawonekedwe onse owonetserako kumapangidwa bwino, ndipo moyo wautumiki wa dongosolo umakulitsidwa kwambiri.
5. Kodi ndi zochitika ziti zaukadaulo wamba?
Zogwirizana ndi matekinoloje wamba amtundu wa cathode monga ma LED, magetsi, ndi ma IC oyendetsa, siwokhwima ngati unyolo wamakampani a Ram LED.Kuphatikiza apo, mndandanda wamakono wa cathode IC sunakwaniritsidwe, ndipo kuchuluka kwa malonda sikuli kwakukulu.Ram akadali ndi 80% ya msika.
Chifukwa chachikulu chakukula kwapang'onopang'ono kwaukadaulo wamba wa cathode pakadali pano ndikukwera mtengo wopangira.Pamaziko a mgwirizano waunyolo woyambira, cathode wamba imafuna mgwirizano wokhazikika kumapeto kwa unyolo wamakampani monga tchipisi, ma CD, ma PCB, ndipo mtengo wake ndi wokwera.
M'nthawi ino yomwe anthu ambiri amafuna kupulumutsa mphamvu, kuwonekera kwa mawonekedwe osawoneka bwino a LED kwakhala gawo lothandizira pantchito yamakampaniyi.Komabe, pali njira yotalikirapo yoti tikwaniritse kukwezedwa kokwanira ndikugwiritsa ntchito mokulirapo, ndipo kuyesetsa kwamakampani onse ndikofunikira.Kuwonetsera kwa LED kwa cathode kumaphatikizapo kugwiritsa ntchito mphamvu zamagetsi ndi ndalama zogwiritsira ntchito, zomwe ndi chitukuko cha kupulumutsa mphamvu.Choncho, kupulumutsa mphamvu ndi kuchepetsa kugwiritsa ntchito mphamvu kumakhudzana ndi zofuna za owonetsa ma LED ndi kugwiritsa ntchito mphamvu za dziko.
Kutengera momwe zinthu ziliri pano, chiwonetsero chawamba cha cathode LED chopulumutsa mphamvu sichingawonjeze mtengo wokwera kwambiri poyerekeza ndi mawonedwe achikhalidwe, komanso kupulumutsa ndalama zogwiritsidwa ntchito m'tsogolo, zomwe zimalandiridwa bwino ndi msika.
Nthawi yotumiza: Aug-06-2022
