Magetsi opangira magetsi amtundu wa LED ndi 12 Vdc ndi 24 Vdc, motsatana. Iwo ndi otetezeka komanso osavuta kugwira nawo ntchito. Koma, nthawi zambiri timamva mawu awa: Mzere wa LED umakhala wowala kumapeto kwina ndikuchepera kwina. Chifukwa chiyani?
Yankho ndi kutsika kwa magetsi. Kwenikweni, izi ndizabwinobwino pamakina owunikira otsika.
M'nkhaniyi tikambirana:
Kodi kutsika kwa voliyumu ya LED ndi chiyani?
Kutsika kwa magetsi a LED ndi kuchuluka kwa magetsi omwe atayika pakati pa magetsi ndi ma LED omwewo.
Kuchuluka kwa kukana kwa dera, kumapangitsanso kutsika kwamagetsi.
Mu dera la DC la mzere wotsogola, voteji imachepa pang'onopang'ono pamene ikudutsa pawaya ndi kuwala kwake komweko. Chifukwa chake, kukulitsa waya kapena mzere kumapangitsa kuti mbali imodzi yamagetsi anu ikhale yowala kuposa mbali inayo.
Chifukwa chiyani kutsika kwa magetsi a LED kumachitika?
Chifukwa choyamba ndi kutalika kwa waya kuli ndi kuchuluka kwa mphamvu zamagetsi. Kutalika kwa waya, kumatsutsana kwambiri. Kukana kwa magetsi kumayambitsa kutsika kwa magetsi, ndipo kutsika kwa magetsi kumapangitsa kuti ma LED anu azichepa.
Chifukwa chachiwiri ndi PCB yomwe ili ndi kukana. Kukaniza kwa PCB kudzadya gawo la voliyumu ndikusintha mphamvu yamagetsi kukhala mphamvu yotentha.
Kukana kwa PCB kumakhudzana ndi kukula kwa gawo (logwirizana ndi PCB board m'lifupi ndi makulidwe amkuwa). Kukula kwakukulu kwa gawo la PCB, ndikocheperako kukana; kutalika kwa PCB, ndikokulirapo kukana.
Kodi mungapeze bwanji kutsika kwamagetsi?
Kutsika kwa magetsi a LED kumawonekera kwambiri pa mzere woyera wa led kotero mutha kutsegula kuwala koyera pamtundu wotsogolera kusintha mtundu kuti muwone kutsika kwamagetsi.
Tiyeni tiwone ngati titha kuwona kutsika kwamagetsi pogwiritsa ntchito mzere wautali wotsogolera kuwala koyera. Pachithunzichi, titha kuona kuti chiyambi (malo "1") ndi choyera choyera, ndipo mutathamanga mtunda (malo "2"), kuwala koyera kumasanduka chikasu, ndipo kumapeto kwa mzere wotsogolera ( malo "3"), kuwala koyera kumakhala kofiira chifukwa cha kuchepa kwa magetsi.
(Kumbukirani: Chingwe chowongolera chikakulungidwa, sichiyenera kuyatsidwa kwa nthawi yayitali, zomwe zingawononge mzere wotsogolera.)
Mphamvu yamagetsi ya LED imagwirizana ndi tchipisi ta LED. Pansipa pali ma voltages akutsogolo omwe amafunikira ma drive angapo amitundu.
- Blue LED Chip: 3.0-3.2V
- Green LED Chip: 3.0-3.2V
- Chip chofiira cha LED: 2.0-2.2V
Zindikirani: LED yoyera imagwiritsa ntchito chip buluu kenako imawonjezera phosphors pamwamba.
Mphamvu yoyendetsa ya tchipisi zabuluu ndi yayikulu kuposa ya tchipisi zobiriwira ndi zofiira. Chifukwa chake magetsi a white led strip light akatsika, ndipo magetsi apano sangathe kukumana ndi voteji yofunidwa ndi tchipisi ta buluu, mzere wowala uwonetsa chikasu (mtundu wobiriwira ndi wofiira) komanso wofiyira chifukwa ndiwotsika kuposa magetsi ofunikira. kuwala koyera.
Kodi magetsi onse a LED ali ndi kutsika kwamagetsi?
Kwenikweni, mizere yonse yamagetsi otsika a LED, monga 5Vdc, 12Vdc, ndi 24Vdc idzakhala ndi vuto lotsitsa magetsi. Chifukwa pakugwiritsa ntchito mphamvu zomwezo, kutsika kwa voliyumu, kumakhala kokulirapo. Malinga ndi lamulo la Ohm, mphamvu yamagetsi imafanana ndi kukana kuchulukitsidwa ndi pano. Kukaniza kwa conductor kumakhala kosasintha. Kuchuluka kwa magetsi kumapangitsanso kutsika kwamagetsi. Ichinso ndichifukwa chake anthu amagwiritsa ntchito magetsi okwera kwambiri potumiza magetsi!
Ma volteji apamwamba a LED, monga 110VAC, 220VAC, ndi 230VAC, nthawi zambiri sakhala ndi vuto la kutsika kwamagetsi. Pamalo amodzi amagetsi, mtunda wothamanga kwambiri wa mizere yamagetsi yamagetsi a LED imatha kufika mamita 50. Malinga ndi mphamvu yofanana ndi voteji yochulukitsidwa ndi panopa, voteji yamtundu wapamwamba wa LED ndi 110V kapena 220V, kotero kuti magetsi amtundu wa LED ndi ochepa kwambiri, kotero kuti kutsika kwa magetsi kumakhala kochepa.
The Mzere wa kuwala wa LED nthawi zonse, kawirikawiri 24Vdc, sadzakhala ndi vuto la kutsika kwa magetsi. Chifukwa mizere yanthawi zonse ya LED imakhala ndi ma IC, ma IC awa amatha kupangitsa kuti magetsi aziyenda nthawi zonse. Malingana ngati magetsi akudutsa mu LED nthawi zonse, kuwala kwa LED kumakhalanso kosasintha.
M'malo mwake, mphamvu yamagetsi yamagetsi yanthawi zonse ya LED idzachepanso. Mwachitsanzo, voteji kumapeto kwa mzere wanthawi zonse wa kuwala kwa LED idzakhalanso yotsika kuposa 24V. Munthawi yanthawi zonse, kutsika kwamagetsi kumayambitsa kutsika kwamagetsi kudzera pa LED, zomwe zimapangitsa kuwala kochepa. Komabe, popeza pali ma IC pamizere yanthawi zonse ya LED, ma IC amatha kusunga ma LED omwe akudutsa nthawi zonse, omwe amafunika kukhala mkati mwamtundu wina wamagetsi (mwachitsanzo, 24V ~ 19V).
Kodi kutsika kwa magetsi a LED ndikowopsa?
Kutsika kwa magetsi a LED nthawi zambiri sikuwononga ma LED chifukwa ndi mawonekedwe omwe magetsi amaperekedwa kwa iwo ndi ochepera kuposa momwe amayembekezeredwa poyamba.
Komabe, kutsika kwa voteji nthawi zambiri kumayimira kutembenuka kwa mphamvu yamagetsi ku mphamvu yotentha ya resistor, yomwe imapanga kutentha kwakukulu. Izi zitha kuyambitsa mavuto ngati chingwe chanu cha LED chayikidwa mkati kapena pafupi ndi zinthu zomwe sizimva kutentha. Zomatira za 3M ndi ma LED nawonso amakhudzidwa ndi kutentha kotero kuti kutsika kwamagetsi kwambiri kumatha kukhala vuto.
Kodi ndi Zinthu ziti zomwe zingakhudze kutsika kwamagetsi?
Malinga ndi lamulo la Ohm, magetsi ndi ofanana ndi kukana kwanthawi zamakono.
Kukaniza kwa waya kumatsimikiziridwa ndi kutalika kwake ndi kukula kwa waya. Mzere wa LED PCB kukana kumatsimikiziridwa ndi kutalika ndi makulidwe a mkuwa mu PCB.
Chifukwa chake, kuchuluka kwa kutsika kwamagetsi kwa mizere ya LED kungadziwike ndi zinthu zazikuluzikulu: kuchuluka kwathunthu kwa chingwe cha LED, kutalika ndi m'mimba mwake mwa waya, kutalika kwa chingwe cha LED ndi makulidwe a PCB yamkuwa.
Chiwerengero chonse cha mzere wa LED
Kupyolera mu ndondomeko ya mzere wa LED, tikhoza kudziwa mphamvu ya mzere wa LED wa mamita 1, kuti tithe kuwerengera mphamvu zonse za mzere wa LED.
Chiwerengero chonse cha mzere wa LED ndi wofanana ndi mphamvu yonse yogawidwa ndi magetsi.
Chifukwa chake mphamvu zonse zimachulukirachulukira, mphamvu zonse zimachulukira, ndipo motero mphamvu yamagetsi imatsika kwambiri. Chifukwa chake, kutsika kwa voteji kwa mikwingwirima ya LED yokhala ndi mphamvu yayikulu kumakhala koopsa kuposa kwa mizere ya LED yokhala ndi mphamvu yochepa.
Mwinanso, kutsika kwa voteji, kumapangitsa kuti magetsi azikwera kwambiri komanso kutsika kwambiri. Chifukwa chake, kutsika kwa voteji kwa mzere wa 12V LED ndikowopsa kuposa kwa 24V.
Kutalika ndi m'mimba mwake wa waya
Kukaniza kwa waya kumatsimikiziridwa makamaka ndi zinthu za kondakitala, kutalika kwa kondakitala, ndi chigawo chapakati cha conductor.
Kukaniza kwa waya kumatsimikiziridwa makamaka ndi zinthu za conductor, kutalika kwa kondakitala, ndi gawo la mtanda wa conductor. Kutalika kwa waya, kukana kwakukulu, ndi kung'onozing'ono kwa mtanda, kumatsutsana kwambiri.
Mukhoza onani Chida chowerengera chawaya Resistance kuti muwerenge molunjika.
Kutalika ndi makulidwe a mkuwa mu PCB
Ma PCB ndi ofanana ndi mawaya, onse ndi kondakitala ndipo ali ndi kukana okha. Zinthu zochititsa chidwi mu PCB ndi zamkuwa. Kutalikira kwa PCB, ndikokulirapo kukana; chokulirapo chamkuwa chamtanda mkati mwa PCB, chimachepetsa kukana.
Mukhoza onani Chida chowerengera cha PCB Resistance Calculation kuti mawerengedwe akhale ovuta.
Momwe Mungapewere Kutsika kwa Voltage?
Ngakhale Mzere wa LED udzakhala ndi vuto la dontho lamagetsi, titha kulipewa pogwiritsa ntchito njira zotsatirazi.
Maulalo Amodzi
Pamene mizere yotalikirapo ya LED ikufunika kukhazikitsidwa, tikulimbikitsidwa kuti mizere 5 iliyonse yamizere imalumikizidwa ndi magetsi mofananira.
Magetsi pa malekezero onse a nyali ya LED strip
Kutalika kwakukulu kwa mizere ya LED pamsika ndi 5 mita. Ngati mukufuna kuyika mzere wa LED wa mita 10, mutha kulumikiza malekezero onse a mzere wa LED kumagetsi.
Gwiritsani ntchito magetsi ambiri
Kugwiritsa ntchito magetsi angapo m'malo mwa gawo limodzi ndi lingaliro labwino kuti muwoneke bwino. Zimafunika kukonzekera mwanzeru, kuti musapite kutali kwambiri ndi gwero lamagetsi.
Gwiritsani ntchito voteji 48Vdc kapena 36Vdc LED Mzere
Gwiritsani ntchito mizere yokwera kwambiri yamagetsi a LED kuti mupewe zovuta zotsika.
Mwachitsanzo, gwiritsani ntchito 48V, 36V, ndi 24V m'malo mwa 12V ndi 5V.
Chifukwa voteji yapamwamba imatanthauza kutsika kwa magetsi, kutsika kwa magetsi.
Gwiritsani ntchito zingwe za LED zokhala ndi PCB yamkuwa wandiweyani
Copper ndiye chinthu chomwe chimagwiritsidwa ntchito kwambiri pama waya amagetsi. Izi zili choncho chifukwa imayendetsa bwino magetsi ndipo ndi yotsika mtengo poyerekeza ndi siliva.
Kukhuthala kwa mkuwa nthawi zambiri kumayesedwa mu ma ounces. Waya wamkuwawo ukakhala wokhuthala, m'pamenenso madzi a mkuwa akuyenda kwambiri.
Timalimbikitsa kugwiritsa ntchito 2oz. kapena 3oz. kwa mizere yamphamvu yamphamvu ya LED kuti mupewe kutsika kwamagetsi.
Kuchuluka kwa waya wamkuwa, kumachepetsa kukana kwamkati.
Choncho, waya wamkuwa adzanyamula mphamvu zambiri.
Kuwonjezera apo, ndi bwino kutentha kutentha.
Gwiritsani ntchito waya wokulirapo
Nthawi zina, malo omwe mzere wa LED umayikidwa ndi mtunda wautali kuchokera kumagetsi a LED. Kenako tiyenera kuganizira kukula kwa waya tiyenera kugwiritsa ntchito kulumikiza Mzere LED ndi magetsi. Inde, kukula kwa waya, kumakhala bwinoko. Tiyenera kudziwa zomwe kutsika kwamagetsi komwe tingathe kuvomereza, ndikudziwa chomwe kutalika kwa waya kumayambitsa kutsika kwamagetsi.
Mutha kudziwa kukula kwa waya potsatira njira zotsatirazi:
Gawo 1. Werengani Wattage
Mutha kuyang'ana mphamvu pa mita pa cholembera cha chingwe cha LED, kotero mphamvu yonse ndi mphamvu pa mita yochulukitsidwa ndi kuchuluka kwa mita. Kenaka gawani mphamvu zonse ndi voteji kuti mutenge mphamvu zonse.
Gawo 2. Yesani mtunda pakati pa mzere wa LED ndi dalaivala
Yezerani mtunda pakati pa chingwe cha LED ndi magetsi a LED. Izi zimakhudza mwachindunji kukula kwa waya.
Gawo 3. Sankhani chingwe choyenera kukula
Mutha kuwerengera kutsika kwa voteji ya waya pogwiritsa ntchito Voltage Drop Calculator.
Mutha kuyesa kusintha ma diameter osiyanasiyana amawaya mu chowerengera kuti muwone kutsika kwamagetsi komwe kumayenderana ndi ma diameter osiyanasiyana.
Mwanjira iyi, pezani waya wa kukula koyenera (ndi kutsika kwamagetsi komwe mungavomereze).
Gwiritsani ntchito chingwe chachitali chokhazikika cha LED
The kuwala kwanthawi yayitali kosalekeza (CC) led strip light amatha kukwaniritsa mamita 50, mamita 30, mamita 20 ndi mamita 15 pa reel, ndipo amangofunika kulumikizidwa ndi magetsi pamapeto amodzi, ndipo kuwala kwa chiyambi ndi mapeto ndi chimodzimodzi.
Powonjezera zida zamakono za IC kuderali, mzere wautali wautali wosalekeza ukhoza kuwonetsetsa kuti zomwe zikuchitika kudzera mu LED zitha kusungidwa mosadukiza mkati mwamtundu wina wamagetsi (mwachitsanzo, 24V ~ 19V) kuti kuwala kwa LED kuwonekere. mosasinthasintha.
Kutsiliza
Vuto la dontho lamagetsi litha kuthetsedwa, koma lidzakutengerani nthawi kapena ndalama. Ngati mukufuna kusunga ndalama, mutha kulumikiza mizere yoyendetsedwa molingana ndi magetsi kapena kulumikiza malekezero onse azitsulo zotsogola kumagetsi. Ngati mukufuna kusunga nthawi, mutha kusankha mizere ya LED yokhala ndi PCB yamkuwa yokulirapo kapena mizere yayitali kwambiri ya LED. Komabe, nthawi zina ndi ndalama.
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