Muyenera -kuwona: Chidziwitso Chachidziwitso Chachidziwitso Choyendetsa Dalaivala ya LED

Kutentha kwa kutentha, mphamvu yoyendetsa galimoto, ndi magwero a kuwala ndi mbali zofunika kwambiri pa chinthu chabwino chowunikira cha LED. Ngakhale kuti kutentha kumakhala kofunika kwambiri, kutentha kwa kutentha kumakhudza mwachindunji moyo wa zinthu zowunikira, koma gwero la kuwala ndilo gawo lalikulu la mankhwala onse. Kukhazikika kwa moyo ndi zotuluka pakali pano ndi voteji ya mphamvu yokhayo imakhudza kwambiri moyo wonse wa mankhwalawa. Mphamvu yoyendetsa galimoto ya LED ndi chinthu chothandizira. Pakalipano, ubwino wa magetsi pamsika ndi wosiyana. Zotsatirazi zimapereka chidziwitso chokhudzana ndi mphamvu ya driver wa LED. 1. Kodi magetsi oyendetsa magetsi a LED ndi chiyani amasintha magetsi kukhala magetsi enaake kuti ayendetse chosinthira chamagetsi cha LED. Nthawi zambiri: athandizira wa LED pagalimoto mphamvu zikuphatikizapo mkulu -voltage pafupipafupi AC (ndiko mphamvu mzinda), otsika voteji DC DC , High -voltage DC, otsika -voltage ndi mkulu -mafupipafupi AC (monga linanena bungwe thiransifoma pakompyuta), ndi zina. Kutulutsa kwamagetsi amagetsi a LED nthawi zambiri kumakhala gwero lanthawi zonse lomwe lingasinthe voteji ndi kusintha kwa kuchepetsa mtengo wa voliyumu yakutsogolo ya LED. Zigawo zazikuluzikulu za magetsi a LED zimaphatikizapo switch controller, induction, switch component (MOSFET), kukana mayankho, chipangizo chojambulira cholowetsa, chipangizo chosefera, ndi zina zambiri. Malinga ndi zofunika nthawi zosiyanasiyana, payenera kukhala athandizira overvoltage chitetezo madera, athandizira - kusowa kuthamanga madera chitetezo, LED kutsegula msewu chitetezo, overcurrent chitetezo ndi madera ena. 2. Mawonekedwe amagetsi amagetsi a LED (1) Kudalirika kwakukulu kumafanana ndi mphamvu ya dalaivala ya nyali za mumsewu wa LED, zomwe zimayikidwa pamalo okwera, sizoyenera kukonzanso, komanso mtengo wokonza ndi waukulu. (2) LED yogwira ntchito kwambiri ndi chinthu chopulumutsa mphamvu, ndipo mphamvu yoyendetsa galimoto ndiyokwera kwambiri. Ndikofunikira kwambiri pakuwonongeka kwa kutentha kwa magetsi mu nyali. Kuchita bwino kwa magetsi kumakhala kwakukulu, kulemera kwake kumakhala kochepa, ndipo kutentha mu nyali kudzakhala kochepa, zomwe zidzachepetse kutentha kwa nyali. Ndizopindulitsa kuchedwetsa kulephera kwa kuwala kwa LED. (3) Zinthu zamphamvu kwambiri komanso mphamvu zomwe zimafunikira pakulemedwa kwa gridi ya gridi. Nthawi zambiri, zida zamagetsi zomwe zili pansi pa 70 Watts, palibe zizindikiro zovomerezeka. Ngakhale kuti mphamvu imodzi yokhala ndi mphamvu zochepa, mphamvu zochepa zimakhala ndi mphamvu zochepa pa gridi yamagetsi, kugwiritsa ntchito kuunikira usiku, mtundu womwewo wa katundu umakhala wochuluka kwambiri, udzachititsa kuti magetsi awonongeke kwambiri. Kwa mphamvu ya dalaivala ya LED ya 30 Watts 40 Watts, akuti posachedwapa, pangakhale zizindikiro zina za mphamvu. (4) Pali mitundu iwiri ya njira zoyendetsera pano: imodzi ndi gwero lamagetsi lokhazikika la magwero angapo osasunthika, ndipo gwero lililonse lamtundu uliwonse la LED padera. Mwa njira iyi, kuphatikiza kumasinthasintha, kulephera kwa LED njira yonse, sikukhudza ntchito ya ma LED ena, koma mtengo udzakhala wokwera pang'ono. The ena mwachindunji zonse panopa magetsi okwanira, amenenso “Zhongke Huibao “Njira yoyendetsera yotengera, LED imalumikizidwa kapena yofanana. Ubwino wake ndikuti mtengo wake ndi wotsika, koma kusinthasintha kumakhala kovutirapo, ndipo ndikofunikira kuthetsa vuto la kulephera kwina kwa LED, zomwe sizimakhudza magwiridwe antchito ena a LED. Mitundu iwiriyi imakhalapo kwa nthawi ndithu. Njira zoperekera mphamvu za Multi -Lu Hengliu zidzakhala zabwinoko potengera mtengo ndi magwiridwe antchito. Mwina ndi njira yodziwika bwino m'tsogolomu. (5) Kutha kuteteza chitetezo cha LED cha ma LED ndi osauka, makamaka mphamvu ya anti-reverse voltage. Kulimbitsa chitetezo m'derali n'kofunikanso. Magetsi ena a LED amaikidwa panja, monga magetsi amsewu a LED. Chifukwa cha kutsegulidwa kwa gridi yamagetsi ndi kulowetsedwa kwa mphezi, dongosolo la gridi lidzaukira mafunde osiyanasiyana, ndipo mafunde ena adzawononga LED. Choncho kupenda kwake “Zhongke Huibao “Mphamvu ya dalaivala iyenera kukhala yopanda chitetezo pakuthamanga kwa mafunde. Ponena za kusinthidwa pafupipafupi kwa mphamvu ndi nyali, magetsi oyendetsa magetsi a LED ayenera kukhala ndi mphamvu yoletsa kuphulika ndi kuteteza mphamvu ya LED kuti isawonongeke. (6) Kuphatikiza pa ntchito yodzitchinjiriza yokhazikika, mphamvu yoteteza chitetezo ndiyabwino kuwonjezera kutentha kwa LED pazotulutsa zomwe zikuchitika kuti ziteteze kutentha kwa LED kukhala kokwera kwambiri; 3. Kugawika molingana ndi njira yoyendetsera (1) Kutulutsa komweku kwanthawi zonse komwe kumayendetsa galimoto kumakhala kosasintha, pomwe magetsi a DC amasintha mkati mwamtundu wina ndi kukula kwa kukana kwa katundu, kukana kwa katundu ndikocheperako, kutulutsa kwake. voteji ndi Ngati ndi otsika, chachikulu katundu kukana mtengo, ndi apamwamba linanena bungwe voteji; nthawi zonse dera panopa saopa katundu dera lalifupi, koma katundu ali oletsedwa; dera loyendetsa la Hengliu ndilobwino kwambiri, koma mtengo wake ndi wokwera; tcherani khutu kwa izo; tcherani khutu Kulekerera kwakukulu ndi mtengo wamagetsi ogwiritsidwa ntchito, kumachepetsa kuchuluka kwa ma LED. (2) Pambuyo pa magawo osiyanasiyana okhazikika pagawo lokhazikika, voliyumu yotulutsa imakhazikika, ndipo zotulukapo zikusintha ndi kuchuluka ndi kuchepa kwa katundu; Dera lalifupi; yendetsani LED kuti iyendetse dera loyendetsedwa ndi voteji, chingwe chilichonse chimayenera kuwonjezera kukana koyenera kuti chingwe chilichonse cha LED chiwonetse kuwala kwapakati; kuwala kudzakhudzidwa ndi kusintha kwa magetsi kuchokera kukonzanso. 4. Ubwino ndi kuipa kwanthawi zonse ndi njira yotsatirira ndikufananizidwa ndi kuchuluka kwanthawi zonse. Ngakhale kuti pali zovuta zambiri komanso zokwera mtengo, mtengo wake ndi wokwera kwambiri. Koma ikhoza kuteteza moyo wa LED ndikukulitsa LED, kotero kuti kuyenda kosalekeza kwa msewu ndizochitika zam'tsogolo. 5. Kuperewera kwa magetsi a LED - magetsi oyendetsedwa ndi LED sikukwanira: 1. Akatswiri amakampani omwe amapanga kuyatsa kwa LED ndi zinthu zina zofananira sadziwa mokwanira za magetsi osinthira. Ndipo osaganizira kuyanjana kwamagetsi kokwanira, pali zowopsa zina zobisika; 2. Ambiri opanga magetsi a LED amasinthidwa kuchokera kumagetsi osinthika wamba kuti apange magetsi a LED. Makhalidwe ndi kumvetsetsa kwa LED sizokwanira; Pali pafupifupi palibe miyezo, ambiri amene ali muyezo ponena za kusintha magetsi ndi rectifier pakompyuta; magetsi ambiri a LED sakhala ofanana, kotero kuchuluka kwake kumakhala kochepa. Ngati voliyumu yogulayo ndi yaying'ono, mtengo wake ndi wapamwamba, ndipo wopereka gawolo sakugwirizana kwambiri; 4. Kukhazikika kwa magetsi a LED: kuyika kwamagetsi ambiri, kutentha kwakukulu ndi ntchito yotsika kutentha, kutentha kwambiri, kutetezedwa kwamagetsi ochulukirapo ndi zovuta zina sizinathe chimodzi ndi chimodzi. Choyamba ndi moyo wonse wa dera loyendetsa galimoto, makamaka zipangizo zofunikira monga: moyo wa capacitors pa kutentha kwakukulu umakhudza mwachindunji moyo wa magetsi; kuti pagalimoto ya LED iyenera kutsutsa kutembenuka kwapamwamba, makamaka poyendetsa ma LED amphamvu kwambiri, chifukwa imayendetsedwa ndi mphamvu yamphamvu ya LED, chifukwa imayendetsedwa ndi mphamvu yamphamvu ya LED, chifukwa chifukwa champhamvu ya dalaivala wa dalaivala mkulu -mphamvu LED, chifukwa chifukwa ndi dalaivala mkulu -mphamvu LED, chifukwa chifukwa dalaivala ndi mkulu -mphamvu LED, chifukwa chifukwa ndi dalaivala mkulu -mphamvu LED, chifukwa chifukwa ndi dalaivala mkulu -mphamvu LED, chifukwa chifukwa ndi dalaivala mkulu -mphamvu LED, chifukwa chifukwa dalaivala mkulu -mphamvu LED, chifukwa chifukwa dalaivala ndi mkulu -mphamvu LED, chifukwa ndi dalaivala mkulu -mphamvu LED, chifukwa chifukwa chifukwa dalaivala mkulu -mphamvu LED ndi chifukwa ndi woona kwambiri, chifukwa kwambiri. Mphamvu zonse zomwe sizili kunja kwa kuwala zimagwiritsidwa ntchito ngati kutentha kwa kutentha, ndipo mphamvu yosinthira mphamvu imakhala yochepa kwambiri, yomwe imakhudza ntchito ya LED yopulumutsa mphamvu. Pakalipano, pogwiritsira ntchito mphamvu zochepa (1-5W), chiwerengero cha mtengo wa magetsi oyendetsa galimoto ya Hengliu chakhala pafupi ndi 1/3, chomwe chiri pafupi ndi mtengo wa magetsi, zomwe zimakhudza kukwezedwa kwa msika kumlingo wina. .