Kune akawanda marudzi e LED zvigadzirwa zvemagetsi ekuratidzira, asi zvakajairika maitiro ndezvekuti ivo vanofanirwa kushandisa DC magetsi uye yakaderera inoshanda voltage yechinhu chimwe chete, uye dunhu rekushandura rinofanira kushandiswa kana uchishandisa simba reguta.Kune akasiyana makesi ekushandisa, kune akasiyana mhinduro muhunyanzvi hwekuzadzikiswa kweiyo LED magetsi inoshandura.

Maererano nemagetsi emagetsi emagetsi, vatyairi ve LED vanogona kugoverwa muzvikamu zvitatu: imwe ibheteri-powered, inonyanya kushandiswa kune zvigadzirwa zvemagetsi zvinotakurika, kutyaira pasi-simba uye nepakati-simba machena LEDs;imwe isimba remagetsi rakakura kupfuura 5, iro rinofambiswa neyakagadzika magetsi kana bhatiri Simba rekupa, senge nhanho-pasi, nhanho-pasi uye nhanho-pasi DC converters (converters; yechitatu inofambiswa zvakananga nema mains (110V). kana 220V) kana inowirirana yakakwira-voltage yakananga ikozvino (yakadai se40 ~ 400V), iyo inonyanya kushandiswa ngamera yakakwirira simba White LED, senge nhanho-pasi DC/DC converter.

1. Battery-powered drive scheme

Iyo bhatiri rekushandisa voltage rinowanzo 0.8 ~ 1.65V.Kune midziyo yekuvhenekesa yakaderera-simba senge maratidziro e LED, iyi inowanzoshandiswa kesi.Iyi nzira inonyanya kukodzera zvigadzirwa zvemagetsi zvinotakurika kuti zvityaire ma LED akadzika-simba uye epakati-simba machena ma LED, akadai semwenje we LED, mwenje wekukurumidzira we LED, marambi edhesiki rekuchengetedza simba, nezvimwewo Tichifunga kuti zvinokwanisika kushanda nebhatiri reAA uye. iva nevhoriyamu diki, yakanakisa tekinoroji mhinduro ndeyekuchaja pombi inosimudzira inoshandura, senge boost DC Zhuang (inoshandura kana kusimudzira (kana Mashoma epombi anoshandura emhando yebuck-boost madhiraivha anoshandisa LDO maseketi.

2. High voltage uye yakaoma kutyaira chirongwa

Iyo yakaderera-voltage magetsi emagetsi scheme ine voltage yakakwira kupfuura 5 inoshandisa yakatsaurwa yakagadzikana magetsi kana bhatiri kupa simba.Iko kukosha kwemagetsi emagetsi emagetsi e LED anogara akakwirira kudarika LED tube voltage kudonha, kureva kuti, inogara yakakura kudarika 5V, yakadai se6V, 9V, 12V, 24V kana kupfuura.Muchiitiko ichi, inonyanya kufambiswa nemagetsi akagadzikana kana bhatiri kutyaira mwenje we LED.Rudzi urwu rwemagetsi ekupa hurongwa hunofanirwa kugadzirisa dambudziko rekupa magetsi danho-pasi.Zvishandiso zvakajairika zvinosanganisira solar lawn mwenje, solar gadheni marambi, uye mota mwenje masisitimu.

3. Dhiraivha chirongwa chakananga chinofambiswa ne mains kana high-voltage yakananga ikozvino

Mhinduro iyi inofambiswa zvakananga ne mains (100V kana 220V) kana inoenderana yakakwira-voltage yakananga ikozvino, uye inonyanya kushandiswa kutyaira yakakwirira-simba chena mwenje LED.Mains drive inzira yekugovera magetsi ine mutengo wepamusoro weyero yekuratidzira kwe LED, uye ndiyo nzira yekusimudzira yekuzivikanwa uye kushandiswa kwemwenje we LED.

Paunenge uchishandisa mains simba kutyaira iyo LED, zvinodikanwa kugadzirisa dambudziko rekudzikisa voltage uye kugadzirisa, asi zvakare kuve neakanyanya kutendeuka kushanda zvakanaka, vhoriyamu diki uye mutengo wakaderera.Mukuwedzera, nyaya yekuchengetedzwa kwekuchengetedza inofanira kugadziriswa.Tichifunga nezvekukanganisa pane gidhi remagetsi, kukanganiswa kwemagetsi uye nyaya dzesimba dzinofanirwa kugadziriswa.Kune epakati uye yakaderera magetsi maLED, yakanakisa dunhu chimiro ndeye yakasarudzika-inopera flyback inoshandura.Kune epamusoro-simba maapplication, mabhiriji ekushandura maseketi anofanirwa kushandiswa.

Pakutyaira kwe LED, dambudziko guru nderekusava-mutsara kwechiratidzo che LED.Izvi zvinonyanya kuratidzwa mukuti magetsi ekumberi e LED achachinja neazvino uye tembiricha, kumberi kwemagetsi emhando dzakasiyana dze LED kuchave kwakasiyana, iyo "color point" ye LED inodonha neazvino uye tembiricha, uye LED inofanirwa kunge iri mukati mezvinodiwa zveiyo yakatarwa.Shanda mukati mehuwandu kuti uwane basa rakavimbika.Basa guru remutyairi we LED nderokugadzirisa ikozvino pasi pemamiriro ekushanda, pasinei nekuchinja mumamiriro ekuisa uye mberi kwemhepo.

Kune iyo LED dhiraivha yedunhu, kuwedzera kune inogara ichidzikama ikozvino, kune zvimwe zvakakosha zvinodiwa.Semuyenzaniso, kana uchida kuita kudzima kwe LED, unofanirwa kupa tekinoroji yePWM, uye yakajairika PWM frequency ye LED dimming i1 ~ 3kHz.Mukuwedzera, simba rekubata simba re LED drive circuit rinofanira kunge rakakwana, rine simba, rinokwanisa kumira zvakasiyana-siyana zvekukanganisa, uye nyore kushandisa.Zvakakodzera kutaura izvozvo nekuti iyo LED inogara iri pane optimum ikozvino uye haizununguki.

Mukusarudzwa kwe LED kuratidza dhiraivha zvirongwa, iyo inductance inowedzera DC / DC yaifungidzirwa munguva yakapfuura.Mumakore achangopfuura, iyo yazvino iyo yekuchaja pombi mutyairi anogona kubuda yakakwira kubva mazana mashoma maA kusvika 1.2A.Naizvozvo, aya maviri Kubuda kwerudzi rweactuator kwakafanana.