Xa kufikwa kwii-capacitors ze-MLCC (Multilayer Ceramic Capacitor), uphawu olubalulekileyo ekufuneka luqwalaselwe yi-Equivalent Series Resistance (ESR). I-ESR ye-capacitor ibhekisa kukumelana kwangaphakathi kwe-capacitor. Ngamanye amazwi, ilinganisa indlela i-capacitor eqhuba ngayo ngokulula i-alternating current (AC). Ukuqonda i-ESR yeIi-capacitor ze-MLCCibaluleke kakhulu kwiindlela ezininzi zokusebenzisa izixhobo ze-elektroniki, ingakumbi ezo zifuna ukusebenza okuzinzileyo kunye nokusetyenziswa kwamandla aphantsi.
I-ESR ye-capacitor ye-MLCC ichaphazeleka zizinto ezininzi, ezinje ngokwakhiwa kwezinto, ulwakhiwo, kunye nobukhulu bazo.Ii-capacitor ze-MLCCNgokwesiqhelo zakhiwe ngeeleya ezininzi zezinto zeseramikhi ezibekwe ndawonye, kwaye ileya nganye yahlulwe zii-electrode zesinyithi. Izinto zeseramikhi ezikhethwayo zezi capacitors zihlala ziyindibaniselwano ye-titanium, i-zirconium, kunye nezinye ii-oxide zesinyithi. Ezi zinto zikhethwa ngononophelo ukubonelela ngexabiso eliphezulu le-capacitance kunye ne-impedance ephantsi kwiifrikhwensi eziphezulu.
Ukuze kuncitshiswe i-ESR, abavelisi badla ngokusebenzisa ubuchwepheshe obahlukeneyo kwinkqubo yokuvelisa. Enye indlela enjalo kukubandakanya izinto eziqhuba umbane, ezifana nesilivere okanye ubhedu, ngendlela yentlama eqhuba umbane. Ezi ntlama ziqhuba umbane zisetyenziselwa ukwenza ii-electrodes ezidibanisa iileya zeseramikhi, ngaloo ndlela zinciphisa i-ESR iyonke. Ukongeza, abavelisi banokufaka umaleko omncinci wezinto eziqhuba umbane kumphezulu we-I-capacitor ye-MLCCukunciphisa ngakumbi i-ESR.
I-ESR ye-capacitor ye-MLCC ilinganiswa ngee-ohms kwaye inokwahluka ngokuxhomekeke kwisicelo. Amaxabiso aphantsi e-ESR ngokubanzi ayanqweneleka kuba abonisa ukuhanjiswa okungcono kunye nokulahleka kwamandla okuphantsi. Ii-capacitor ze-ESR eziphantsi zilungele ngcono izicelo ezifuna ukusebenza rhoqo, ezinje ngezixhobo zombane kunye neesekethe zokuqhawula. Zibonelela ngozinzo olungcono kunye nokusebenza kakuhle kwaye zinokusingatha utshintsho olukhawulezileyo kwi-voltage ngaphandle kokulahlekelwa okukhulu.
Nangona kunjalo, kufuneka kuqatshelwe ukubaIi-capacitor ze-MLCCnge-ESR ephantsi kakhulu inokuba nemida. Kwezinye iinkqubo, i-ESR ephantsi kakhulu inokubangela i-resonance engafunekiyo kunye nokusebenza okungazinzi. Ke ngoko, kubalulekile ukukhetha ngononophelo i-capacitor ye-MLCC enexabiso le-ESR elifanelekileyo kwiimfuno ezithile zesekethe.
Ukongeza, i-ESR yeIi-capacitor ze-MLCCutshintsho ngokuhamba kwexesha ngenxa yezinto ezifana nokwaluphala kunye notshintsho lobushushu. Ukwaluphala kwe-capacitor kubangela ukuba i-ESR inyuke, nto leyo echaphazela ukusebenza kwesekethe iyonke. Ezi zinto kufuneka ziqwalaselwe xa kuqulunqwa iinkqubo ze-elektroniki ukuqinisekisa ukuthembeka nokuzinza kwexesha elide.
Ngamafutshane, i-ESR ye-capacitor ye-MLCC idlala indima ebalulekileyo ekumiseleni iimpawu zayo zombane. Le yiparameter ebalulekileyo ekufuneka iqwalaselwe xa ukhetha ii-capacitors zezicelo ezahlukeneyo ze-elektroniki. Ii-capacitors ze-MLCC ezine-ESR ephantsi ziphucula ukusebenza kakuhle kunye nozinzo kwaye zilungele iisekethe ezisebenzisa i-frequency ephezulu. Nangona kunjalo, ixabiso le-ESR kufuneka lilinganiswe neemfuno ezithile zesekethe ukuqinisekisa ukusebenza kakuhle kunye nokuthembeka.
Ixesha lokuthumela: Okthobha-07-2023