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 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 eziphathekayo 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.