Pambuyo pazaka zachitukuko, wamba wamba wa anode LED wapanga unyolo wokhazikika wamakampani, ndikuyendetsa kutchuka kwa zowonetsera za LED. Komabe, ilinso ndi zovuta za kutentha kwapamwamba komanso kugwiritsa ntchito mphamvu mopitirira muyeso. Pambuyo pakuwonekera kwaukadaulo wamba wa cathode LED chiwonetsero chamagetsi, chakopa chidwi kwambiri pamsika wowonetsa LED. Njira yoperekera mphamvuyi imatha kukwaniritsa kupulumutsa mphamvu kwa 75%. Ndiye ukadaulo wamba wa cathode LED chiwonetsero chamagetsi ndi chiyani? Kodi ubwino wa luso limeneli ndi chiyani?
1. Kodi wamba cathode LED ndi chiyani?
"Common cathode" imatanthawuza njira wamba yamagetsi ya cathode, yomwe kwenikweni ndi ukadaulo wopulumutsa mphamvu pazithunzi zowonetsera za LED. Zimatanthawuza kugwiritsa ntchito njira wamba ya cathode kuti iwonetsetse chophimba cha LED, ndiko kuti, R, G, B (yofiira, yobiriwira, yabuluu) ya mikanda ya nyali ya LED imayendetsedwa mosiyana, ndipo magetsi ndi magetsi amaperekedwa molondola kwa R. , G, B nyali mikanda motero, chifukwa mulingo woyenera kwambiri ntchito voteji ndi panopa chofunika ndi R, G, B (wofiira, wobiriwira, buluu) mikanda nyale ndi osiyana. Mwanjira iyi, yoyamba imadutsa mikanda ya nyali ndiyeno kupita ku electrode yoyipa ya IC, kutsika kwamagetsi kutsogolo kudzachepetsedwa, ndipo kukana kwamkati kwa conduction kudzakhala kochepa.
2. Kodi pali kusiyana kotani pakati pa wamba cathode ndi wamba anode LEDs?
①. Njira zosiyanasiyana zoperekera magetsi:
The wamba cathode magetsi njira ndi kuti panopa woyamba akudutsa mu nyali mkanda ndiyeno kwa mzati zoipa za IC, amene amachepetsa kutsogolo voteji dontho ndi conduction kukana mkati.
The anode wamba ndi kuti panopa umayenda kuchokera PCB bolodi kwa nyali mkanda, ndi kupereka mphamvu kwa R, G, B (wofiira, wobiriwira, buluu) uniformly, zomwe zimatsogolera ku kugwa kwakukulu kutsogolo voteji mu dera.
②. Mitundu yosiyanasiyana yamagetsi:
Common cathode, adzapereka panopa ndi voteji kwa R, G, B (wofiira, wobiriwira, buluu) mosiyana. Zofunikira zamagetsi za mikanda ya nyali zofiira, zobiriwira ndi zabuluu ndizosiyana. Mphamvu yamagetsi ya mikanda yofiira ya nyali ndi pafupifupi 2.8V, ndipo mphamvu yamagetsi ya mikanda yobiriwira yobiriwira ndi pafupifupi 3.8V. Mphamvu yotereyi imatha kupeza mphamvu zolondola komanso kugwiritsa ntchito mphamvu zochepa, ndipo kutentha kopangidwa ndi LED panthawi ya ntchito kumakhala kochepa kwambiri.
Komano anode wamba, imapatsa R, G, B (yofiira, yobiriwira, yabuluu) voteji yapamwamba kuposa 3.8V (monga 5V) yamagetsi ogwirizana. Panthawiyi, magetsi opangidwa ndi ofiira, obiriwira ndi a buluu ndi 5V ogwirizana, koma mphamvu yabwino yogwirira ntchito yomwe imafunidwa ndi mikanda itatu ya nyali ndiyotsika kwambiri kuposa 5V. Malingana ndi njira ya mphamvu P = UI, pamene panopa sichinasinthe, mphamvu yamagetsi ikukwera, mphamvu yowonjezera, ndiko kuti, kugwiritsira ntchito mphamvu kwambiri. Panthawi imodzimodziyo, LED idzatulutsanso kutentha kwambiri panthawi ya ntchito.
TheGlobal Third-Generation Outdoor LED Advertising Screen Yopangidwa ndi XYGLED, amatengera wamba cathode. Poyerekeza ndi ma diode achikhalidwe a 5V ofiira, obiriwira, ndi abuluu otulutsa kuwala, mtengo wabwino wa chipangizo chofiyira cha LED ndi 3.2V, pomwe ma LED obiriwira ndi abuluu ndi 4.2V, amachepetsa kugwiritsa ntchito mphamvu ndi 30% ndikuwonetsa mphamvu zabwino kwambiri- ntchito yopulumutsa ndi kuchepetsa kugwiritsa ntchito.
3. N'chifukwa chiyani wamba cathode LED anasonyeza kupanga kutentha pang'ono?
Njira yapadera yamagetsi yamagetsi ya cathode ya chinsalu chozizira imapangitsa kuti chiwonetsero cha LED chipangitse kutentha pang'ono komanso kukwera kotsika panthawi yogwira ntchito. Nthawi zonse, poyera komanso posewera makanema, kutentha kwa chophimba chozizira kumakhala pafupifupi 20 ℃ poyerekeza ndi mawonekedwe akunja akunja a LED amtundu womwewo. Pazinthu zamtundu womwewo komanso kuwala komweko, kutentha kwa chinsalu chowonetserako cathode LED ndi madigiri oposa 20 kuposa amtundu wamba wodziwika bwino wa anode LED, ndikugwiritsa ntchito mphamvu kuposa 50% kuposa izo. zinthu wamba wamba anode LED zowonetsera.
Kutentha kwakukulu ndi kugwiritsa ntchito mphamvu zowonetsera LED nthawi zonse zakhala zofunikira zomwe zimakhudza moyo wautumiki wa zinthu zowonetsera za LED, ndipo "chiwonetsero chodziwika bwino cha LED cathode" chimatha kuthetsa mavuto awiriwa bwino kwambiri.
4. Kodi ubwino wa wamba cathode LED anasonyeza?
①. Mphamvu zamagetsi zolondola zimapulumutsa mphamvu:
Chodziwika bwino cha cathode chimagwiritsa ntchito ukadaulo wowongolera magetsi, kutengera mawonekedwe osiyanasiyana amtundu wamitundu itatu yayikulu ya LED yofiira, yobiriwira ndi yabuluu, ndipo ili ndi makina owongolera anzeru a IC ndi nkhungu yodziyimira payokha kuti igawanitse ma voltages osiyanasiyana molondola. ku LED ndi dera loyendetsa galimoto, kotero kuti mphamvu yogwiritsira ntchito mphamvu imakhala pafupifupi 40% yotsika kuposa yazinthu zofanana pamsika!
②. Kupulumutsa mphamvu kwenikweni kumabweretsa mitundu yeniyeni:
Wamba cathode LED galimoto njira akhoza molondola kulamulira voteji, amene amachepetsa kugwiritsa ntchito mphamvu ndi kutentha m'badwo. Kutalika kwa mafunde a LED sikusunthika pogwira ntchito mosalekeza, ndipo mtundu weniweni umawoneka bwino!
③. Kupulumutsa mphamvu kwenikweni kumabweretsa moyo wautali:
Kugwiritsa ntchito mphamvu kumachepetsedwa, potero kumachepetsa kwambiri kutentha kwa dongosolo, kuchepetsa mwayi wa kuwonongeka kwa LED, kupititsa patsogolo kukhazikika ndi kudalirika kwa machitidwe onse owonetsera, ndikukulitsa kwambiri moyo wa dongosolo.
5. Kodi chitukuko chaukadaulo wamba wa cathode ndi chiyani?
Zothandizira zokhudzana ndiukadaulo wamba wowonetsa cathode LED, monga LED, magetsi, dalaivala IC, ndi zina zambiri, sizili okhwima ngati unyolo wamba wa anode LED. Kuphatikiza apo, mndandanda wamba wa cathode IC sunathe pakali pano, ndipo voliyumu yonse si yayikulu, pomwe anode wamba akadali 80% pamsika.
Chifukwa chachikulu chakupita patsogolo pang'onopang'ono kwaukadaulo wamba wa cathode ndi mtengo wokwera wopanga. Kutengera ndi mgwirizano wapaintaneti wapaintaneti, cathode wamba imafuna mgwirizano wokhazikika pamalekezero onse amakampani monga tchipisi, ma CD, PCB, ndi zina zambiri, zomwe ndizokwera mtengo.
M'nthawi ino ya kuyitana kwakukulu kwa kupulumutsa mphamvu, kutuluka kwa ma cathode owonekera bwino a LED kwakhala malo othandizira omwe amatsatiridwa ndi makampaniwa. Komabe, pali njira yotalikirapo yoti tikwaniritse kukwezedwa kokwanira ndikugwiritsa ntchito mwanjira yokulirapo, yomwe imafunikira kuyesetsa kwamakampani onse. Monga njira yachitukuko chopulumutsa mphamvu, chowonekera cha cathode LED chiwonetsero chazithunzi chimaphatikizapo kugwiritsa ntchito ndi mtengo wamagetsi. Chifukwa chake, kupulumutsa mphamvu kumakhudzana ndi zokonda za owonetsa mawonedwe a LED komanso kugwiritsa ntchito mphamvu zadziko.
Kuyambira panopa, wamba cathode LED zopulumutsa mphamvu anasonyeza chophimba si kuonjezera mtengo kwambiri poyerekeza ndi ochiritsira chophimba chophimba, ndipo adzapulumutsa ndalama mu ntchito kenako, amene amalemekezedwa kwambiri ndi msika.
Nthawi yotumiza: Feb-02-2024
