Iyini i-ESR ye-MLCC capacitor?

Uma kukhulunywa ngama-capacitor e-MLCC (Multilayer Ceramic Capacitor), isici esisodwa esibalulekile okufanele sicatshangelwe i-Equivalent Series Resistance (ESR).I-ESR ye-capacitor ibhekisela ekuphikiseni kwangaphakathi kwe-capacitor.Ngamanye amazwi, ikala ukuthi i-capacitor yenza kalula kangakanani i-alternating current (AC).Ukuqonda i-ESR yeI-MLCC capacitorsibalulekile ezinhlelweni eziningi zikagesi, ikakhulukazi lezo ezidinga ukusebenza okuzinzile kanye nokusetshenziswa kwamandla okuphansi.

I-ESR ye-MLCC capacitor ithintwa izinto eziningi, njengokwakheka kwezinto, ukwakheka, nosayizi.I-MLCC capacitorsngokuvamile akhiwa ngezingqimba eziningi zezinto zobumba ezistakiwe, isendlalelo ngasinye sihlukaniswa ngama-electrode ensimbi.Izinto ze-ceramic ezikhethwayo kulawa ma-capacitor ngokuvamile ziyinhlanganisela ye-titanium, i-zirconium, namanye ama-oxide ensimbi.Lezi zinto zikhethwa ngokucophelela ukuze zinikeze amanani aphezulu we-capacitance kanye ne-impedance ephansi kumafrikhwensi aphezulu.

Ukunciphisa i-ESR, abakhiqizi bavame ukusebenzisa ubuchwepheshe obuhlukahlukene enqubweni yokukhiqiza.Enye yalezo zindlela iwukuhlanganisa into yokuqhuba, njengesiliva noma ithusi, ngendlela yokunamathisela okuqhubayo.Lawa ma-conductor paste asetshenziselwa ukwakha ama-electrode axhuma izingqimba ze-ceramic, ngaleyo ndlela kunciphisa i-ESR iyonke.Ngaphezu kwalokho, abakhiqizi bangasebenzisa ungqimba oluncane lwezinto ezibonakalayo ebusweni be-I-MLCC capacitorukuze kuqhutshekwe nokunciphisa i-ESR.

I-ESR ye-MLCC capacitor ikalwa ngama-ohms futhi ingahluka kuye ngohlelo lokusebenza.Amanani aphansi e-ESR ngokuvamile ayafiseleka ngoba abonisa ukusebenza okungcono nokulahlekelwa amandla aphansi.Ama-capacitor e-ESR aphansi afaneleka kangcono izinhlelo zokusebenza ezidinga ukusebenza kwefrikhwensi ephezulu, njengamandla kagesi namasekhethi ahlukanisayo.Banikeza ukuzinza okungcono nokusebenza kahle futhi bangakwazi ukusingatha izinguquko ezisheshayo ku-voltage ngaphandle kokulahlekelwa okukhulu.

Nokho, kufanele kuqashelwe ukuthiI-MLCC capacitorsnge-ESR ephansi kakhulu ingase ibe nokulinganiselwa.Kwezinye izinhlelo zokusebenza, i-ESR ephansi kakhulu ingabangela ukuzwakala okungafuneki nokusebenza okungazinzile.Ngakho-ke, kubalulekile ukukhetha ngokucophelela i-MLCC capacitor enenani le-ESR elifanele izidingo ezithile zesekethe.

Ngaphezu kwalokho, i-ESRI-MLCC capacitorsizinguquko ngokuhamba kwesikhathi ngenxa yezici ezifana nokuguga nokushintsha kwezinga lokushisa.Ukuguga kwe-capacitor kubangela ukwanda kwe-ESR, okuthinta ukusebenza okuphelele kwesifunda.Lezi zici kufanele zicatshangelwe lapho kwakhiwa izinhlelo ze-elekthronikhi ukuze kuqinisekiswe ukwethembeka nokuzinza kwesikhathi eside.

Kafushane, i-ESR ye-MLCC capacitor idlala indima ebalulekile ekunqumeni izici zayo zikagesi.Lena ipharamitha ebalulekile okufanele icatshangelwe lapho ukhetha ama-capacitor wezinhlelo zokusebenza ze-elekthronikhi ezihlukahlukene.Ama-capacitor e-MLCC ane-ESR ephansi athuthukisa ukusebenza kahle nokuzinza futhi alungele amasekhethi aphezulu.Kodwa-ke, inani le-ESR kufanele lilingane nezidingo ezithile zesekethe ukuze kuqinisekiswe ukusebenza kahle nokuthembeka.