Kodi zowopsa zobisika za ma capacitor a ceramic okalamba ndi ati?

Q: Ceramic capacitors amakhudzidwa ndi zochitika zaukalamba

Ceramic capacitors amakhudzidwa ndi zochitika zaukalamba zomwe zimagwirizanitsidwa ndi kusintha kwa dielectric crystal structure, zomwe zimawoneka ngati kusintha kwa capacitance ndi dissipance factor pambuyo powombera koyamba kwa dielectric material.Mogwirizana ndi zitsanzo zokhazikitsidwa, zida za EIA Class I dielectric zimakhudzidwa pang'ono ndipo zimadziwika kuti ndizosakalamba, pomwe zida zamagetsi za EIA Class II zimakhudzidwa pang'ono ndipo zida za EIA Class III zimakhudzidwa kwambiri.Kukalamba kumeneku kungathe kubwezeretsedwanso (kapena chipangizo cha "de-aging") poyang'ana kutentha pamwamba pa kutentha kwa dielectric's Curie kwa nthawi yayitali yokwanira kuti mawonekedwe a kristalo apangidwenso;kutentha kwapamwamba, kumachepetsa nthawi yofunikira.Popeza kutentha kwa Curie kwa ma dielectrics ambiri a ceramic ndikotsika kuposa komwe kumakumana ndi njira zambiri zogulitsira, ndizotheka kuti chipangizocho chikhala chachikale pang'ono panthawi yolumikizana.

Khalidwe la ukalamba la chigawochi nthawi zambiri limawonetsedwa ngati kusintha kwa kuchuluka kwa mphamvu pazaka khumi za maola, poyerekeza ndi mphamvu yomwe imayesedwa pa "kutentha komaliza," nthawi yomaliza chigawocho chinatenthedwa pamwamba pa kutentha kwa Curie kutalika kokwanira kusintha kristalo wake. kapangidwe.Mwanjira ina, capacitor yokhala ndi kukalamba kwa (-) 5%, yoyezedwa pa 100uF mu "ovuni yatsopano", ikuyembekezeka kuyeza pafupifupi 95,90 ndi 85uF pambuyo pa maola 1, 10 ndi 100 kuchokera mu uvuni. , motero.

Mwachiwonekere, izi zimadzutsa funso la zomwe mphamvu yodziwika ya chigawocho iyenera kukhala, ndipo ngati ndalamazo zikusintha nthawi zonse, chigawocho chidzagwiritsidwa ntchito pa alumali ngakhale sichinagwiritsidwe ntchito muzolemba zake zoyambirira.Miyezo yamakampani a EIA-521 ndi IEC-384-9 amawongolera nkhaniyi, makamaka ponena kuti gawoli liyenera kufikira mtengo wake wololera maola 1000 (pafupifupi masiku 42) pambuyo pakuwotha komaliza.Zaka khumi zikubwerazi (maola 10K ndi 100K) zimatanthawuza kupitirira pang'ono chaka chimodzi ndi zaka zoposa 11 motsatira.Kuonjezeranso zovuta, kukalamba kumachitika pamlingo wodalira kutentha;mpaka kutentha kwa Curie kwa dielectric, kuwonjezeka kwa kutentha kwa chipangizo nthawi zambiri kumathandizira kukalamba.

Popeza zochitika zaukalamba zimatha kupangitsa kuti zida ziwonekere kunja kwa kulolera kwawo, opanga zinthu ndi oyesa kupanga ayenera kudziwa izi;kuyezetsa kwa zida zomwe zangotulutsidwa kumene kuyenera kuyembekezera kuchuluka kwamphamvu pang'ono, ndipo kapangidwe kake kayenera kukhala ndi malire okwanira kuti chipangizocho chizigwira bwino ntchito pakakalamba.Mabwalo osinthira mphamvu ndi chitsanzo chabwino cha komwe izi zitha kukhala pachiwopsezo chachikulu, popeza ma capacitor a ceramic nthawi zambiri amatha kukhudza kwambiri malupu owongolera a mabwalo oterowo, monga zida zolipirira netiweki kapena zinthu zosefera.Machitidwe omwe amawoneka okhazikika pansi pa chisonkhezero cha ukalamba wa capacitor panthawi ya msonkhano akhoza kukhala wosakhazikika pakapita nthawi, chifukwa kutaya mphamvu chifukwa cha ukalamba kumakhudza mphamvu za kayendetsedwe ka kayendetsedwe kake.Chofunika kwambiri, ngati kukhazikika kwamphamvu pakapita nthawi ndikofunikira, pewani kugwiritsa ntchito ma capacitor owoneka bwino.

Zhejiang NeoDen Technology Co., LTD., yomwe idakhazikitsidwa mu 2010, tili m'malo abwino osati kukupatsirani makina apamwamba kwambiri a pnp, komanso abwino kwambiri pambuyo pogulitsa.Mainjiniya ophunzitsidwa bwino adzakupatsani chithandizo chilichonse chaukadaulo.

Mainjiniya 10 amphamvu pambuyo pogulitsa gulu lantchito amatha kuyankha mafunso ndi mafunso amakasitomala mkati mwa maola 8.

Mayankho aukadaulo atha kuperekedwa mkati mwa maola 24 tsiku lantchito komanso tchuthi.