A cikin inverter da converter na gargajiya, capacitors na bas sune capacitors na electrolytic, amma a cikin sababbi, ana zaɓar capacitors na fim, menene fa'idodin capacitors na fim idan aka kwatanta da capacitors na electrolytic?

A halin yanzu, ƙarin inverters na tsakiya da na kirtani suna zaɓar capacitors na fim saboda dalilai masu zuwa:

(1) Na'urorin ɗaukar fim na iya samun juriyar ƙarfin lantarki mafi girma fiye da na'urorin ɗaukar electrolytic. Ƙarfin wutar lantarki mai ƙima na na'urorin ɗaukar electrolytic na aluminum yana da ƙasa, har zuwa 450 V. Don samun matakin juriyar ƙarfin lantarki mafi girma, yawanci ana buƙatar amfani da su a jere, kuma dole ne a yi la'akari da matsalar daidaita ƙarfin lantarki a cikin tsarin haɗin jerin. Sabanin haka, na'urorin ɗaukar fim na iya kaiwa har zuwa 20KV, don haka babu buƙatar la'akari da haɗin jerin a cikin aikace-aikacen inverter matsakaici da babban ƙarfin lantarki, kuma ba shakka, babu buƙatar la'akari da matsalolin haɗi kamar daidaitawar ƙarfin lantarki da farashi mai dacewa da ƙarfin aiki.

(2) Filayen fim suna da juriya mafi girma ga zafin jiki fiye da na'urorin lantarki.

(3) Tsawon rayuwar capacitor ɗin fim ya fi ƙarfin capacitor na electrolytic tsayi. Gabaɗaya, tsawon rayuwar capacitor ɗin electrolytic shine 2,000H, amma tsawon rayuwar capacitor ɗin fim ɗin CRE shine 100,000H.

(4) ESR ya fi ƙanƙanta. ESR na capacitor na fim yawanci yana da ƙasa sosai, gabaɗaya ƙasa da 1mΩ, kuma inductance na parasitic shi ma yana da ƙasa sosai, 'yan kaɗan ne kawai na nH, wanda ba a iya kwatanta shi da aluminum electrolytic capacitors ba. Ƙarancin ESR yana rage matsin lamba a kan bututun canzawa, wanda ke da amfani ga aminci da kwanciyar hankali na bututun sauyawa.

(5) Ƙarfin juriyar wutar lantarki mai ƙarfi. Juriyar wutar lantarki ta capacitors masu ƙarfe na iya zama sau goma zuwa goma sha biyu na ƙimar wutar lantarki ta capacitors na aluminum electrolytic masu ƙarfin iri ɗaya. Domin cimma mafi girman juriyar wutar lantarki, capacitors na aluminum electrolytic yawanci suna amfani da babban ƙarfin don biyan buƙatun, yayin da babban ƙarfin aiki ɓata kuɗi da sararin shigarwa ba dole ba ne.