I-Film capacitor yaziwa nangokuthi i-plastic film capacitor.Isebenzisa ifilimu yepulasitiki njenge-dielectric.Kubhekiselwa kucwecwe lwensimbi njenge-electrode, futhi ifilimu yepulasitiki efana ne-polyethylene, i-polypropylene, i-polystyrene noma i-polycarbonate, izokweqa kusuka kuzo zombili iziphetho futhi ifakwe esakhiweni esiyicylindrical.Kumhleli olandelayo uzokwethula "indima kanye nezindawo zokusetshenziswa eziyinhloko zama-film capacitor".

⒈Indima yama-capacitor amafilimu

Ama-filimi capacitor ngokuvamile asetshenziswa ekuhlungeni ama-high-frequency, ama-high-frequency bypassing, i-oda lokuqala noma amasekhethi okuhlunga okwesibili.

a.Ngokufana nawo wonke amanye ama-capacitor, indima yama-capacitor wefilimu ukubhekelela isenzo sokushaja kagesi.Njengengxenye ye-chip (imvamisa) ekwazi ukubamba inani elincane lokushaja kagesi.
b.Uma kuqhathaniswa namanye ama-capacitor ajwayelekile, ama-filimi capacitor anezici eziningi ezinhle kakhulu ezisebenza kahle kakhulu.Izici zayo eziyinhloko zimi kanje: okungeyona i-polarity, ukumelana nokushisa okuphezulu, izici ezinhle kakhulu zemvamisa (impendulo yemvamisa ebanzi), nokulahlekelwa okuncane kakhulu kwe-dielectric.
c.Phakathi kwabo, i-capacitor yalolu hlobo lwefilimu enensimbi ine-okuthiwa ukuziphulukisa umphumela (Isenzo Sokuphulukisa Self), okungukuthi, uma ingxenye encane ye-electrode ifushane ngenxa ye-dielectric ebuthakathaka, insimbi ye-electrode nxazonke. ingxenye ye-short-circuit, ethintekile amandla e-electrostatic noma i-short-circuit current ethathwe yi-capacitor ngaleso sikhathi, izobangela indawo enkulu yokuncibilika nokuhwamuka ukuze kubuyiselwe ukufakwa, ukuze i-capacitor izobuyisela umsebenzi we-capacitor.Okusho ukuthi, ingaziphilisa ngokuphazima kweso.

⒉I-appli eyinhlokoed izimboniifilimu capacitor

Ama-film capacitor asetshenziswa kakhulu kuma-electronics, izinto zikagesi zasendlini, ezokuxhumana, amandla kagesi, izitimela ezifakwe ugesi, izimoto eziyingxubevange, amandla omoya, amandla elanga nezinye izimboni.Ukuthuthuka okuzinzile kwalezi zimboni kukhuthaze ukukhula kwemakethe ye-film capacitor.

Ngokuthuthuka kobuchwepheshe, umjikelezo wokushintsha izinto zikagesi, izinto zikagesi zasendlini, ezokuxhumana kanye nezinye izimboni uya uba mfushane futhi ube mfushane, futhi ama-capacitor amafilimu, ngokusebenza kahle kukagesi nokuthembeka okuphezulu, abe yingxenye ye-elekthronikhi ebaluleke kakhulu ukukhuthaza ukushintshwa kwalokhu okungenhla. izimboni.Eminyakeni embalwa ezayo, ngokuthuthuka okuqhubekayo kokufakwa kwedijithali, ukwaziswa kanye nokwakhiwa kwenethiwekhi, kanye nokukhula kwezimali kwezwe ekwakhiweni kwegridi kagesi, ukwakhiwa kukaloliwe ngogesi, izibani ezonga ugesi, izimoto eziyingxubevange, njll., kanye nokuthuthukiswa kwabathengi. imikhiqizo ye-elekthronikhi, isidingo semakethe sama-capacitor amafilimu sizophinde siveze inkambiso yokukhula ngokushesha.

1) Kusetshenziswa kumasekethe kagesi kagesi.Ama-filimi capacitor asetshenziswa kakhulu njengesivimbeli kanye nokubamba amandla kanye ne-current, resonant bypass, kanye nokucindezelwa kokuphazanyiswa kukazibuthe kagesi kokuphakelwa kukagesi.

2）Uma i-capacitor yefilimu isetshenziswa njengendlela yokudlula, inciphisa ngokuyinhloko ukuthinta kwebhasi le-DC futhi imunce i-ripple current emthwalweni, ngaleyo ndlela icindezele ngempumelelo ukuguquguquka kwe-voltage yebhasi ye-DC okubangelwa ukushintsha okuzumayo komthwalo.

3) Uma idivayisi ye-elekthronikhi isetshenziswa kusiguquli se-resonant, umsebenzi we-resonance uzofinyelelwa ngokusebenzisana ne-inductor.