Ngokwezici zomthombo wokuphazamiseka, ibanga lemvamisa, i-voltage ne-impedance namanye amapharamitha nezici zomthwalo wezidingo, ukukhetha okufanele kwezihlungi, ngokuvamile kucatshangelwa:
Kokukodwa, kuyadingeka ukuthi isihlungi sokuphazanyiswa kwe-electromagnetic singahlangabezana nezici zokunciphisa kanye nezidingo zokulahlekelwa zokufakwa kwemfuneko yomthwalo ngaphakathi kwebhendi yefrikhwensi yokusebenza ehambisanayo, futhi uma inani lokunciphisa isihlungi lingakwazi ukuhlangabezana nezidingo, lingasetshenziswa i-multistage, can thola ukuncipha okuphezulu kunesiteji esisodwa, i-cascade yesihlungi esihlukile, ingathola izici ezinhle zokuthibaza kanye nokulahlekelwa kokufakwa kubhendi ye-broadband.
Okwesibili, ukuze kuhlangatshezwane nemvamisa yokusebenza kwesekethe yomthwalo kanye nesidingo sokucindezela imvamisa yezidingo, uma imvamisa okufanele icindezelwe futhi imvamisa yezimpawu eziwusizo isondele kakhulu, kuyadingeka ukuthi ube nezici zokuvama eziphakeme kakhulu isihlungi, ukuze uhlangabezane nokucindezelwa kwesihlungi sefrikhwensi yokuphazamiseka, vumela kuphela ukusetshenziswa kwezidingo zesignali yefrikhwensi ewusizo.Okwesithathu, ku-frequency edingekayo, i-impedance yesihlungi se-EMI isihlungi se-RFI kufanele ihambisane nokuphazamiseka komthombo wokuphazamiseka kanye ne-impedance yomthwalo exhunywe kuyo, futhi uma umthwalo unamandla aphezulu, ukuvimbela okukhiphayo kwesihlungi samandla kufanele kube ukumelana okuphansi, futhi uma ukunikezwa kwamandla noma i-impedance yomthombo wokuphazamiseka i-impedance ephansi, i-impedance ephumayo yesihlungi kufanele ibe ukumelana okuphezulu
Uma i-impedance yamandla noma i-impedance yomthombo wokuphazamiseka ingaziwa noma izinguquko ebangeni elikhulu, kunzima ukuthola izici zokuhlunga ezizinzile, ukuze uthole isihlungi sinezici ezinhle zokuhlunga ezizinzile, singaba kokokufaka nesihlungi, at ngesikhathi esifanayo bese kuba i-resistor ehleliwe.
Okwesine, isihlungi kufanele sibe nokumelana okuthile kwengcindezi, ngokusho kwamandla kagesi kanye nomthombo wokuphazamiseka we-voltage elinganiselwe ukuze ukhethe isihlungi samandla, ukuze sibe ne-voltage ephakeme ngokwanele elinganiselwe, ukuqinisekisa ukuthi zonke izimo zokusebenza ezilindelekile zingasebenza ngokuthembekile. , ingamelana nomthelela wokufakwayo kwengcindezi ephezulu esheshayo.Okwesihlanu, isihlungi samandla sivumela iphasi ukuthi ihambisane nesilinganiso samanje esisebenza ngokuqhubekayo kumjikelezo.
Umthamo ongaguquki ophezulu uzokhuphula ivolumu nesisindo sesihlungi se-EMI, futhi okwamanje okungashintshiwe okuphansi kuzonciphisa ukuthembeka kwesihlungi se-EMI.Okwesithupha, isihlungi samandla kufanele sibe namandla anele okusebenza, isakhiwo esilula, isisindo esilula, usayizi omncane, kulula ukukufaka, kuphephile futhi kuthembekile.
Isikhathi sokuthumela: Mar-30-2021
