nkhani

Common mode inductance filter circuit, La ndi Lb ndi ma coil odziwika bwino. Mwa njira imeneyi, pamene yachibadwa panopa mu dera akudutsa wamba akafuna inductance, n'zosiyana maginito minda kwaiye ndi mafunde mu inductance koyilo bala mu gawo lomwelo kuletsa wina ndi mzake. Pankhaniyi, chizindikiro chodziwika bwino chimakhudzidwa makamaka ndi kukana kwa koyilo. Pamene wamba mode panopa Podutsa koyilo, chifukwa cha isotropy wa wamba mode panopa, mphamvu maginito mbali yomweyo kwa kwaiye mu koyilo, amene kumawonjezera induction wa koyilo, ndi kupanga koyilo kuwoneka ngati mkulu impedance. ndipo imapanga mphamvu yochepetsetsa kwambiri. Nthawi zambiri amagwiritsidwa ntchito kusefa ma siginecha amtundu wamtundu wa electromagnetic posinthira magetsi. Kusefa kwa EMI kumagwiritsidwa ntchito kupondereza mafunde a electromagnetic opangidwa ndi mizere yothamanga kwambiri kuti itulutse kunja.

Common mode inductance filter circuit, La ndi Lb ndi ma coil odziwika bwino. Mipiringidzo iwiriyi imakulungidwa pakatikati pachitsulo chimodzi ndi chiwerengero chofanana cha magetsi ndi magawo. Mwa njira imeneyi, pamene yachibadwa panopa mu dera akudutsa wamba akafuna inductance, n'zosiyana maginito minda kwaiye ndi mafunde mu inductance koyilo bala mu gawo lomwelo kuletsa wina ndi mzake. Pankhaniyi, chizindikiro chodziwika bwino chimakhudzidwa makamaka ndi kukana kwa koyilo. Pamene wamba mode panopa Podutsa koyilo, chifukwa cha isotropy wa wamba mode panopa, mphamvu maginito mbali yomweyo kwa kwaiye mu koyilo, amene kumawonjezera kupatsidwa kwa koyilo, kumapangitsa koyilo kuwoneka mkulu impedance, ndi kumapanga mphamvu yochepetsetsa.
Ndipotu, pamene mapeto amodzi a fyuluta akugwirizanitsidwa ndi gwero losokoneza, ndipo mapeto enawo akugwirizana ndi chipangizo chosokoneza, La ndi C1, Lb ndi C2 amapanga magulu awiri a zosefera zotsika, zomwe zingathe kulamulira mzere wamba. mode EMI siginecha mpaka pamlingo wotsika. Derali silingathe kupondereza ma siginecha akunja a EMI, komanso kutsitsa ma siginecha a EMI opangidwa ndi mzere womwewo, womwe ungathe kuchepetsa kusokoneza kwa EMI. Makina ang'onoang'ono opangidwa m'nyumba, amatengera njira zochepetsera phokoso lambiri, mawonekedwe wamba amatsamwitsa ma coil, palibe kutsika kwa ma sign, kukula kochepa, kosavuta kugwiritsa ntchito, moyenera, kosavuta kugwiritsa ntchito, apamwamba kwambiri ndi zabwino zina. Amagwiritsidwa ntchito kwambiri pazida zosinthira kawiri, zosinthira ma frequency ambiri, zosinthira zosinthika, zosinthira zofananira komanso zosagwirizana, ndi zina zambiri.
Common mode inductor amatanthawuza kuti ma coils awiri amavulazidwa pachimake chachitsulo chimodzi, ma windings ndi otsutsana, chiwerengero cha kutembenuka ndi gawo ndi chimodzimodzi. Nthawi zambiri amagwiritsidwa ntchito kusefa ma siginecha amtundu wamtundu wa electromagnetic posinthira magetsi. Kusefa kwa EMI kumagwiritsidwa ntchito kupondereza mafunde a electromagnetic opangidwa ndi mizere yothamanga kwambiri kuti itulutse kunja.