nkhani

Dzina lonse la Chingerezi la PFC ndi "Power Pupply Correction", kutanthauza "mphamvu factor correction".Mphamvu yamagetsi imatanthawuza mgwirizano pakati pa mphamvu zogwira ntchito ndi mphamvu zonse zogwiritsira ntchito mphamvu (mphamvu zowonekera), ndiko kuti, mphamvu yogwira ntchito yogawidwa ndi mphamvu yonse yogwiritsira ntchito mphamvu Chiŵerengero cha kuchuluka (mphamvu zowonekera).Kwenikweni, mphamvu yamagetsi imatha kuyeza momwe magetsi amagwiritsidwira ntchito bwino.Kuchuluka kwa mphamvu yamagetsi, kumapangitsanso kuchuluka kwa mphamvu yogwiritsira ntchito mphamvu.Mphamvu yamagetsi ndi gawo lomwe limagwiritsidwa ntchito kuyeza mphamvu zamagetsi zamagetsi, ndipo mphamvu yochepa imayimira mphamvu zochepa.Ukadaulo wowongolera zida zamagetsi umatchedwa kuwongolera mphamvu.

Mphamvu yamagetsi yosinthira makompyuta ndi gawo lolowetsamo capacitive, ndipo kusiyana kwa gawo pakati papano ndi voteji kumapangitsa kutayika kwa mphamvu yosinthira.Panthawiyi, dera la PFC likufunika kuti liwongolere mphamvu zamagetsi.Ndi njira iyi yokha yomwe mphamvu yosinthira magetsi imatha kukulitsidwa.

Mumagetsi osinthira a PFC, magetsi osunthika okhazikika ndi gawo lofunikira kwambiri.Kusintha kokhazikika kwamagetsi mu PFC sikusiyana kwambiri ndi magetsi osinthika okhazikika, koma pali kusiyana kwamagetsi.Kusintha kokhazikika kwamagetsi okhazikika kumafunikira magetsi okonzedwanso a 220V, pomwe PFC yokhazikika yosinthira magetsi imakhala ndi magetsi a B+PFC.Mwanjira iyi, zotsatira zosefera zidzakhala zabwinoko, ndipo zidzakhala ndi mwayi wocheperako pazofunikira za Houji PWM switch chubu.