Pali mitundu yambiri yazinthu zowonetsera zamagetsi za LED, koma zomwe zimafanana ndizoti ayenera kugwiritsa ntchito magetsi a DC ndi magetsi otsika a chipangizo chimodzi, ndipo makina osinthira ayenera kugwiritsidwa ntchito akamagwiritsa ntchito mphamvu ya mzinda.Pazinthu zosiyanasiyana zogwiritsira ntchito, pali mayankho osiyanasiyana pakukwaniritsidwa kwaukadaulo kwa chosinthira magetsi cha LED.

Malingana ndi magetsi opangira magetsi, madalaivala a LED akhoza kugawidwa m'magulu atatu: imodzi imakhala yoyendetsedwa ndi batri, yomwe imagwiritsidwa ntchito kwambiri pazinthu zamagetsi zamagetsi, kuyendetsa magetsi otsika kwambiri ndi ma LED oyera;ina ndi magetsi okulirapo kuposa 5, omwe amayendetsedwa ndi magetsi okhazikika kapena batire Mphamvu zamagetsi, monga otsika, otsika ndi otsika a DC (otembenuza; chachitatu chimayendetsedwa mwachindunji ndi mains (110V). kapena 220V) kapena lolingana mkulu-voltage mwachindunji panopa (monga 40 ~ 400V), amene makamaka ntchito ngamila mkulu mphamvu White LED, monga sitepe pansi DC/DC Converter.

1. Battery-powered drive scheme

Mphamvu yamagetsi ya batri nthawi zambiri imakhala 0.8 ~ 1.65V.Pazida zowunikira zotsika mphamvu monga zowonetsera za LED, izi ndizochitika wamba.Njirayi ndi yoyenera kwambiri pazinthu zamagetsi zamagetsi zoyendetsa magetsi otsika ndi apakati-mphamvu zoyera, monga nyali za LED, nyali zadzidzidzi za LED, nyali zopulumutsa mphamvu, ndi zina zotero. Poganizira kuti n'zotheka kugwira ntchito ndi batire ya AA ndi kukhala ndi voliyumu yaying'ono kwambiri, njira yabwino kwambiri yaukadaulo ndi chosinthira chapope chowonjezera, monga chowonjezera DC Zhuang (chotembenuza kapena chowonjezera (kapena Ochepa osinthira mapampu amtundu wa buck-boost ndi madalaivala omwe amagwiritsa ntchito mabwalo a LDO.

2. High voteji ndi youma galimoto chiwembu

Dongosolo lamagetsi otsika ndi ma voliyumu apamwamba kuposa 5 amagwiritsa ntchito magetsi okhazikika okhazikika kapena batire kuti apereke mphamvu.Mtengo wamagetsi wamagetsi amagetsi a LED nthawi zonse umakhala wapamwamba kuposa kutsika kwamagetsi amtundu wa LED, ndiye kuti, nthawi zonse amakhala wamkulu kuposa 5V, monga 6V, 9V, 12V, 24V kapena kupitilira apo.Pankhaniyi, imayendetsedwa makamaka ndi magetsi okhazikika kapena batri yoyendetsa magetsi a LED.Dongosolo lamtunduwu lamagetsi liyenera kuthana ndi vuto lakutsika kwamagetsi.Ntchito zodziwika bwino ndi monga magetsi adzuwa ladzuwa, magetsi oyendera dzuwa, ndi makina owunikira magalimoto.

3. Drive chiwembu mwachindunji zoyendetsedwa ndi mains kapena mkulu-voteji mwachindunji panopa

Njira yothetsera vutoli imayendetsedwa mwachindunji ndi mains (100V kapena 220V) kapena magetsi oyendera magetsi, ndipo amagwiritsidwa ntchito makamaka kuyendetsa magetsi a LED oyera amphamvu kwambiri.Mains drive ndi njira yoperekera magetsi yokhala ndi chiwongolero chamtengo wapamwamba kwambiri wa chiwonetsero cha LED, ndipo ndi njira yopititsira patsogolo kutchuka ndi kugwiritsa ntchito kuyatsa kwa LED.

Mukamagwiritsa ntchito mphamvu ya mains kuyendetsa ma LED, ndikofunikira kuthana ndi vuto la kuchepetsa voteji ndi kukonzanso, komanso kukhala ndi mphamvu yosinthira kwambiri, voliyumu yaying'ono komanso mtengo wotsika.Kuphatikiza apo, nkhani yodzipatula yachitetezo iyenera kuthetsedwa.Poganizira za kukhudzidwa kwa gridi yamagetsi, kusokoneza ma electromagnetic ndi zovuta zamagetsi ziyeneranso kuthetsedwa.Kwa ma LED apakati ndi otsika mphamvu, mawonekedwe abwino kwambiri ozungulira ndi chosinthira chokhazikika chokhala ndi malekezero amodzi.Pogwiritsa ntchito mphamvu zambiri, mabwalo otembenuza mlatho ayenera kugwiritsidwa ntchito.

Pakuyendetsa kwa LED, vuto lalikulu ndilopanda mzere wa chiwonetsero cha LED.Izi zikuwonekera makamaka chifukwa chakuti magetsi akutsogolo a LED asintha ndi zamakono ndi kutentha, magetsi opita kutsogolo a zipangizo zosiyanasiyana za LED adzakhala osiyana, "mtundu wamtundu" wa LED udzayenda ndi kutentha ndi panopa ndi kutentha, LED iyenera kukhala mkati mwazofunikira zomwe zafotokozedwa.Gwirani ntchito m'njira zingapo kuti mukwaniritse ntchito yodalirika.Ntchito yayikulu ya dalaivala wa LED ndikuchepetsa mphamvu yapano pansi pamikhalidwe yogwirira ntchito, mosasamala kanthu za kusintha kwazinthu zolowera ndi voliyumu yakutsogolo.

Kwa kayendedwe ka galimoto ya LED, kuwonjezera pa kukhazikika kwamakono, palinso zofunika zina zofunika.Mwachitsanzo, ngati mukufuna kuchita dimming LED, muyenera kupereka PWM luso, ndi mmene PWM pafupipafupi kwa kuwala kwa LED ndi 1 ~ 3kHz.Kuonjezera apo, mphamvu yogwiritsira ntchito magetsi a LED drive circuit iyenera kukhala yokwanira, yamphamvu, yokhoza kulimbana ndi zovuta zosiyanasiyana, komanso zosavuta kukhazikitsa.Ndikoyenera kutchula kuti chifukwa LED nthawi zonse imakhala pakalipano ndipo sichingatengeke.

Posankha mawonedwe a ma drive a LED, inductance boost DC/DC idaganiziridwa m'mbuyomu.M'zaka zaposachedwa, mphamvu yomwe woyendetsa pampu amatha kutulutsa yakwera kuchokera pa mazana angapo a mA mpaka 1.2A.Choncho, awiriwa Zotsatira za mtundu wa actuator ndizofanana.