Monga tikudziwira, pali mitundu iwiri ya PFC, imodzi ndi PFC (yotchedwanso passive PFC), ndipo ina imatchedwa mphamvu yogwira ntchito.(yomwe imatchedwanso yogwira PFC).
Passive PFC nthawi zambiri imagawidwa kukhala "mtundu wa chipukuta misozi" ndi "mtundu wodzaza zigwa".
"Inductance compensation" ndikuchepetsa kusiyana kwa gawo pakati pa mphamvu yapano ndi voteji ya zolowetsa za AC kuti muwonjezere mphamvu."Inductance compensation" imaphatikizapo mwakachetechete komanso osalankhula, ndipo mphamvu ya "inductance compensation" imatha Kufika pa 0.7 ~ 0.8, yomwe nthawi zambiri imakhala pafupi ndi capacitor ya high-voltage filter.
"Mtundu wodzaza chigwa" ndi wamtundu watsopano wamagetsi owongolera mphamvu, omwe amadziwika ndi kugwiritsa ntchito dera lodzaza zigwa kumbuyo kwa mlatho wokonzanso kuti asinthe kwambiri mawonekedwe a chubu chowongolera.Kugunda kumakhala mawonekedwe ozungulira pafupi ndi sine wave, ndipo mphamvu yamagetsi imachulukitsidwa mpaka pafupifupi 0.9.Poyerekeza ndi chikhalidwe inductive kungokhala chete mphamvu factor kudzudzulidwa dera, ubwino ndi kuti dera ndi losavuta, mphamvu mphamvu kwambiri, ndipo palibe chifukwa ntchito yaikulu voliyumu inductor mu athandizira dera.
Theyogwira PFCimapangidwa ndi ma inductors, capacitors, ndi zida zamagetsi.Ndi yaying'ono kukula kwake ndipo imagwiritsa ntchito IC yodzipatulira kuti isinthe mawonekedwe amtunduwu kuti athe kubweza kusiyana kwa gawo pakati pa makiyi apano ndi magetsi.Active PFC imatha kupeza mphamvu yayikulu, nthawi zambiri mpaka 98% kapena kupitilira apo, koma mtengo wake ndi wapamwamba.Kuphatikiza apo, PFC yogwira imatha kugwiritsidwanso ntchito ngati magetsi othandizira.Chifukwa chake, pakugwiritsa ntchito ma frequency a PFC, zosinthira zoyimirira nthawi zambiri sizifunikira, ndipo Kuthamanga kwamagetsi a DC a PFC yogwira ndi kochepa kwambiri, ndipo chinthu ichi sichiyenera kugwiritsa ntchito fyuluta capacitor yokhala ndi mphamvu yayikulu nthawi zonse.
Nthawi yotumiza: Dec-17-2021