Kune marudzi akawanda emagetsi e LED.Hunhu uye mutengo wemagetsi akasiyana-siyana anosiyana zvakanyanya.Ichi zvakare chimwe chezvinhu zvakakosha zvinokanganisa kunaka kwechigadzirwa uye mutengo.Magetsi emagetsi e LED anogona kazhinji kukamurwa kuita zvikamu zvitatu, kushandura nguva dzose kwazvino sosi, mutsara IC magetsi ekupa, uye kupikisa-capacitance nhanho-pasi magetsi.
1. Iyo inoshandura inogara iripo ikozvino inoshandisa transformer kushandura yakakwira voltage kune yakaderera voltage, uye inoita kugadzirisa uye kusefa kuti ibudise yakagadzikana yakaderera voltage yakananga ikozvino.Iyo inoshandura inogara iripo sosi yakakamurwa kuva yega magetsi emagetsi uye asiri ega ega magetsi.Isolation inoreva kuparadzaniswa kwekubuda kwepamusoro uye yakaderera voltage, uye chengetedzo yakakwira zvakanyanya, saka chinodiwa chekuvharisa kwegoko hachina kukwirira.Kuchengetedzeka kusiri kwega kwakatoipa zvishoma, asi mutengo wakaderera.Marambi echinyakare ekuchengetedza simba anoshandisa isina-yega magetsi uye anoshandisa insulated plastiki shell kudzivirira.Kuchengetedzwa kweiyo switching power supply yakakwira (kazhinji inobuda iri low voltage), uye kuita kwakagadzikana.Izvo zvisingabatsiri ndezvokuti dunhu rakaoma uye mutengo wakakwirira.Iyo yekuchinjisa magetsi ine tekinoroji yakakura uye yakagadzikana kuita, uye parizvino ndiyo huru magetsi ekuvhenekesa LED.
2. Linear IC simba rekushandisa rinoshandisa imwe IC kana yakawanda ICs kugovera voltage.Kune mashoma marudzi ezvigadzirwa zvemagetsi, simba chinhu uye simba rekupa simba zvakanyanyisa, hapana electrolytic capacitor inodiwa, hupenyu hurefu uye mutengo wakaderera.Izvo zvakashata ndezvekuti iyo yakakwira yakakwira voltage haina-yakasarudzika, uye kune stroboscopic, uye iyo yakavharirwa inofanirwa kuchengetedzwa kubva kumagetsi kuvhunduka.Vese vanoshandisa linear IC magetsi emagetsi pamusika vanoti hapana electrolytic capacitor uye hupenyu hurefu-refu.IC magetsi emagetsi ane kuvimbika kwakanyanya, kushanda kwakanyanya uye kudhura zvakanakira, uye yakanaka LED magetsi emagetsi mune ramangwana.
3. Iyo RC danho-pasi simba rekushandisa rinoshandisa capacitor kupa kutyaira ikozvino kuburikidza nekuchaja kwayo uye kuburitsa.Dunhu iri nyore, mutengo wakaderera, asi kuita kwakashata, uye kugadzikana kwakashata.Zviri nyore kupisa iyo LED kana grid voltage ichichinja, uye kubuda kwacho kwakakwira-voltage isina-yakasarudzika.Insulating inodzivirira shell.Yakaderera simba chinhu uye hupenyu hupfupi, kazhinji yakakodzera chete kune ehupfumi yakaderera-simba zvigadzirwa (mukati me5W).Kune zvigadzirwa zvine simba rakawanda, iyo yakabuda ikozvino yakakura, uye iyo capacitor haigone kupa yakakura ikozvino, kana zvisina kudaro zviri nyore kupisa kunze.Mukuwedzera, nyika ine zvinodiwa zvesimba remagetsi emagetsi e-high-power, kureva, simba pamusoro pe7W rinodiwa kuti rive rakakura kudarika 0.7, asi kupikisa-capacitance danho-pasi magetsi ari kure nekusvika (kazhinji pakati pe. 0.2-0.3), saka zvigadzirwa zvepamusoro-simba hazvifanirwe kushandiswa RC nhanho-pasi magetsi magetsi.Mumusika, zvinenge zvese zvigadzirwa zvakaderera zvine zvinodiwa zvishoma zvinoshandisa RC nhanho-pasi magetsi emagetsi, uye zvimwe zvakaderera, zvigadzirwa zvemagetsi zvinoshandisawo RC nhanho-pasi magetsi.
Nguva yekutumira: Aug-06-2021