PFC zvinoreva simba rekugadzirisa zvinhu, iro rinonyanya kushandiswa kuratidza mashandisirwo esimba remagetsi nezvigadzirwa zvemagetsi.Iyo yakakwirira iyo simba chinhu, iyo yakakwirira yekushandiswa kwesimba remagetsi.
Kune marudzi maviri ePFC: passive PFC uye inoshanda PFC.Passive PFC kazhinji inotora inductance muripo nzira yekudzikisa mutsauko wechikamu pakati peiyo yakakosha ikozvino uye voltage yeAC yekuisa kuvandudza iyo simba chinhu, asi iyo simba chinhu che passive PFC haina kunyanya kukwira uye inogona kungosvika 0.7 ~ 0.8;Active PFC inoumbwa inductance, capacitance uye zvemagetsi zvikamu, inogona kusvika kusvika 0.99.Iyo idiki uye inogona kuwana yakakwira simba chinhu, asi mutengo wakakwira kupfuura iwo wepasire PFC.
PFC inowanzo shandiswa sesimba rinoshanda muPC, uye PFC ine zvinotevera maitiro kanenge:
1) Mhepo yekupinza inogona kubva pa90V kusvika 270V;
2) Iyo mutsara simba chinhu chakakwira kupfuura 0.98, uye ine zvakanakira kurasikirwa kwakaderera uye kuvimbika kwakanyanya;
3) Iyo PFC yeIC inogonawo kushandiswa seyekuwedzera magetsi emagetsi, saka iyo yekumira inoshandura kazhinji haidiwi mukushandiswa kweinoshingaira PFC dunhu;
4) Izvo zvinobuda hazvichinji nemagetsi ekuisa, saka yakadzikama yakabuda voltage inogona kuwanikwa;
5) Iyo inobuda DC voltage ripple ye inoshanda PFC idiki kwazvo uye inopa sine wave ye100Hz / 120Hz (kaviri kuwanda kwesimba).Naizvozvo, iyo magetsi inoshandisa inoshanda PFC haidi kushandisa hombe yekusefa capacitor.
Active PFC inoumbwa inductance, capacitance uye zvemagetsi zvikamu.Iine volume shoma.Iyo inogadzirisa yazvino waveform kuburikidza yakakosha IC kutsiva mutsauko wechikamu pakati pezvino uye voltage.Active PFC inogona kuwana yakakwira simba chinhu - kazhinji inodarika 98%, asi mutengo zvakare wakakwira.Uye zvakare, iyo inoshanda PFC inogona zvakare kushandiswa seyebetsero magetsi.Naizvozvo, mukushandiswa kweiyo inoshanda PFC dunhu, iyo yekumira inoshandura kazhinji haidiwi, uye ripple yeinobuda DC voltage yeiyo inoshanda PFC idiki kwazvo.Iri magetsi haadi kushandisa hombe yekusefa capacitor.
Isu takangotanga 2000W uye 3000W kushandura magetsi emagetsi nePFC.Mutengo wacho unobatsira zvikuru.Iyo yakachipa zvakanyanya pane imwechete magetsi ekupa pamusika, uye kuita kwacho kwakanyatso kugadzikana.Kana uchiifarira, tapota taura nesu.Ndatenda!
Nguva yekutumira: Mar-11-2022