Ceramic capacitor: kuyini kanye nezinzuzo zayo

i-ceramic capacitor

Kule bhulogi sesiphawulile ngokunye Izingxenye ze-elekthronikhi, kufaka phakathi ama-electrolytic capacitors, futhi zingahlolwa kanjani. Manje yithuba le-ceramic capacitor, uhlobo oluthile lwalezi zisetshenziswa ze-passive ezisetshenziswa kabanzi kumasekhethi amaningi azo zonke izinhlobo, futhi ezinemininingwane ethile uma kuqhathaniswa nama-electrolytic capacitor.

Ngalo mhlahlandlela uzoqonda Bayini, ukuthi zakhiwe kanjani, izinhlelo zokusebenza ezingenzeka, ukuthi zisebenza kanjani, kanye nezibonelo ezithile zokusebenzisa nokuthi ungazithenga kuphi.

Yini i-capacitor?

izinhlobo ze-capacitor

Un okokujiya Kuyisisetshenziswa sikagesi esikwazi ukugcina ishaji kagesi ngendlela yomehluko ongaba khona. Kuyinto yokwenziwa, njengama-resistors, ama-potentiometers, amakhoyili, njll. Ngokuqondene nendlela yokufeza lokhu kugcinwa kwamandla, bakwenza ngokusekela insimu kagesi.

Ama-Capacitor anokusetshenziswa okuningi, futhi angasetshenziswa kokubili kumasekhethi e-electronic namasekhethi kagesi, kokubili ku- wamanje oqondile noshintshayo.

i-ceramic capacitor

i-ceramic capacitor

Un i-ceramic capacitor Ivamise ukuba naleso simo esingavamile, kwesinye isikhathi esibukeka njenge-lentil, nakuba ingaphinda isetshenziswe njengezinto zokubeka phezulu (i-SMD), njenge-MLCC (eseyimfashini kakhulu manje ngenxa yezinkinga zamakhadi wehluzo we-NVIDIA). Kulesi simo, umehluko nezinye izinhlobo ze-capacitor ukuthi izinto ezisetshenziswayo ze-dielectric ziyi-ceramic, ngakho-ke igama layo.

Ngokuvamile basebenzisa izendlalelo eziningana, nge amakhono ehlukene (imvamisa isuka ku-1nF iye ku-1F, nakuba kukhona okungafika ku-100F), osayizi nobujamo bejometri. Nokho, ngenxa yemiphumela emibi efana nemisinga eddy.

Njengamanje, kulinganiselwa ukuthi ama-MLCC yiwona asetshenziswa kakhulu, njengoba anezinhlelo zokusebenza kuma-electronics wesimanje, anevolumu yokukhiqiza engaba amayunithi ayi-1.000.000.000 ngonyaka.
ama-capacitor

I-Ceramic (kwesokunxele) kanye ne-electrolytic (kwesokudla) capacitor

Omunye umehluko nge-electrolytics ukuthi i-ceramic capacitor Abanayo i-polarity ngakho-ke, zingasetshenziswa nganoma iyiphi indlela, futhi ekushintsheni izifunda zamanje ngokuphepha, into engenzeki nge-electrolytics, ene-polarity echaziwe futhi izigxobo kufanele zihlonishwe uma ungafuni ukuqeda nge-capacitor eqhumayo.

Ngakolunye uhlangothi, i-ceramic capacitor nayo ine-fantastic imvamisa impendulo. Ziphinde zivelele ngenxa yokumelana kwazo nokushisa okuhle ngenxa yezinto zazo, kanye nenani eliphansi.

Umlando we-ceramic capacitor

i-ceramic condenser yasungulwa ngo-1900 e-Italy. Ekupheleni kwawo-1930, i-titanate yaqala ukungezwa kuma-ceramics (i-BaTiO3 noma i-barium titanate), engenziwa ngezindleko eziphansi. Izicelo zokuqala zalezi zixhobo zazisemishini yezempi yezempi phakathi neminyaka yama-40. Emashumini amabili eminyaka kamuva, ama-capacitor e-ceramic laminated azoqala ukuthengiswa, okwakubalulekile ekuthuthukisweni kwe-electronics ngawo-70.

I-ceramic capacitor dielectric ingenziwa nangezinye izinto, njenge-C0G, NP0, X7R, Y5V, Z5U.

Izinhlobo ze-ceramic capacitors

Kuneziningana izinhlobo ze-ceramic capacitor, ezinye ezibaluleke kakhulu yilezi:

  • ama-semiconductors: zincane kakhulu, njengoba zifinyelela ukuminyana okuhle, ngomthamo omkhulu kanye nobukhulu obuncane. Kulokhu basebenzisa i-dielectric engaguquki, kanye nogqinsi oluncane kakhulu lwengqimba.
  • i-voltage ephezulu: I-Barium titanate ne-strontium titanate isetshenziswa njenge-ceramic material ukuze imelane nezingcindezi eziphakeme. Nakuba befinyelela i-coefficient ephezulu ye-dielectric kanye nokusekelwa okuhle kwe-AC, banesimo esibi sokushintsha amandla ngokukhuphuka kwezinga lokushisa.
  • i-multilayer ceramic capacitor: basebenzisa izendlalelo ezimbalwa ze-ceramic noma i-dielectric kanye ne-conductive material. Baziwa nangokuthi i-monolithic chip capacitors. Anembe kakhulu, mancane ngosayizi futhi alungele ukugxunyekwa phezulu PCB. Uthe ama-MLCC angalolu hlobo.

I-Los i-ceramic disc capacitors ngokuvamile banamandla asuka ku-10pF kuya ku-100pF, asekelwa amandla ogesi asukela ku-16V kuya ku-15kV futhi aphakeme nakakhulu kwezinye izimo. Lezi zithandwa kakhulu ngenxa yokuhlukahluka kwazo.

Ngokuphambene, i-multilayer ceramic thayipha i-MLCC, sebenzisa ukugaywa kwezinto ezisetshenziswayo ezisebenza ngogesi kanye ne-ferroelectric kanye nezendlalelo zensimbi ezishintshanayo. Zingaba nezingqimba ezingama-500 noma ngaphezulu, futhi ezinogqinsi lwama-microns angu-0.5. Uhla lwayo lwezinhlelo zokusebenza luthize, futhi lunamandla nokusekelwa kwe-voltage kuphansi kunangaphambili.

Aplicaciones

Kuye ngohlobo lwe-ceramic capacitor, i- isebenzisa Zingahluka kakhulu, njengoba ngike ngaphawula ngaphambilini:

  • I-MLCC: ngokuvamile embonini yezogesi, kumadivayisi anhlobonhlobo, kusukela kumakhompyutha, kuya kumadivaysi eselula, omabonakude, njll.
  • abanye: Angasukela ku-voltage ephezulu kanye nezinto zikagesi nezinhlelo ze-AC, kuye kuziguquli ze-AC/DC, amasekhethi amafrikhwensi aphezulu, kuye kumamotho e-DC abhulashiwe ukuze kuncishiswe umsindo we-RF, amarobhothi, njll.

Izici ze-Capacitor

ama-capacitor angaphakathi

Ama-Capacitor, ama-electrolytic kanye nama-ceramic capacitor, anochungechunge lwezimpawu okufanele uzazi lapho ukhetha ezifanele iphrojekthi yakho. Ingabe izici Yilezi:

  • Ukunemba nokubekezelelana: Njengama-resistors, ama-capacitor nawo anokubekezela nokunemba kwawo. Kukhona amakilasi amabili okwamanje:
    • Ikilasi 1 elezinhlelo zokusebenza lapho ukunemba okuphezulu kakhulu kuyadingeka nalapho amandla ahlala engashintshile ne-voltage esetshenzisiwe, izinga lokushisa, kanye nobuningi. Lezi zisebenza kumazinga okushisa asuka ku -55ºC kuya ku-+125ºC, futhi ukubekezelelana kuvame ukuhluka kuphela. ±I-1%.
    • I-Class 2 inomthamo ophezulu, kodwa ayinembe kangako futhi ukubekezelelana kwabo kubi kakhulu. Ukuzinza kwayo okushisayo kungabangela ukuthi amandla ayo ahluke aze afike ku-15% kanye nokubekezelela okucishe kube ngu-20% ukuhluka ngokuphathelene namandla okuzisholo.
  • ifomethi: Kunama-capacitor e-ceramic ajwayelekile, okusoda noma asetshenziswe ebhodini lokuthuthukisa, ama-MLCC amasekhethi esimanje aphrintiwe noma ama-PCB.
  • amandla kanye ne-voltage: akuzona zonke ezisekela i-voltage namandla afanayo. Ipharamitha okuzodingeka uyihlole lapho uthenga ukuze uqiniseke ukuthi isekela ububanzi lapho izosebenza khona. Labo abanama-VA angaphezu kuka-200 bangakwazi ukumelana nama-voltages ukusuka ku-2 kV ukuya ku-100 kV, okuyinqwaba, ngisho nasezintanjeni zikagesi. Nokho, ama-MLCC ngokuvamile asekela noma yikuphi ukusuka kumavolthi ambalwa ukuya kumakhulu ama-volts.

Amakhodi

Ama-Ceramic capacitor anezinombolo ezi-3 eziqoshwe kobunye bobuso bawo. Isibonelo, 101, 102, 103, njll., ngaphezu kwamanani ku-pF (pico farads). Lezi amakhodi kulula ukuwahumusha:

  • Amadijithi amabili okuqala yinani le-capacitance ku-pF.
  • Inombolo yesithathu ikhombisa inombolo yoziro abasetshenziswa kunani.

Por ejemplo, i-104 isho ukuthi ino-10 · 10.000 = 100.000 pF, noma yini efanayo 100 nF noma 0.1 μF.

Olunye uhlobo lwe-ceramic capacitor lufakwe i-polarized, ngakho-ke luzoba namatheminali ayo okuthi + kanye - amakiwe, nakuba kungajwayelekile kangako.

En imibhalo Ungabona nomkhiqizi, amandla kagesi asekelwe, noma ukubekezelela...

Izinzuzo nokungalungi

I-condenser evuvukile

Uma uzibuza nge izinzuzo kanye nokubi we-ceramic capacitor, amaphuzu abalulekile yilawa:

  • Izinzuzo:
    • Isakhiwo esihlangene.
    • ezishibhile.
    • Ifanele ukushintshana kwamanje ngenxa yemvelo yayo engeyona i-polarized.
    • Ibekezelela ukuphazamiseka kwezimpawu.
  • nebubi:
    • Inani le-capacitance lincane.
    • Banomphumela we-microphonic kumasekhethi.

Ungahlola kanjani i-ceramic disc capacitor

indlela yokukhetha i-multimeter, indlela yokusebenzisa

Ukuhlola ukusebenza kwe-ceramic disc capacitor, futhi uhlole ukuthi isebenza kahle yini noma yonakele (isifunda esifushane ngenxa ye-voltage ngokweqile,...), ungakwazi landela lezi zinyathelo:

  1. Sebenzisa i-multimeter noma i-multimeter ukuhlola i-ceramic capacitor.
  2. Bona isihloko esinikezelwe kulokhu...

lapho ukuthenga capacitor

Ukuthenga lezi amadivaysi ashibhile, ungabheka izitolo ezikhethekile zikagesi noma ezinkundleni ezifana ne-Amazon:


Okuqukethwe yi-athikili kunamathela ezimisweni zethu ze izimiso zokuhlelela. Ukubika iphutha chofoza lapha.

Yiba ngowokuqala ukuphawula

Shiya umbono wakho

Ikheli lakho le ngeke ishicilelwe.

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  1. Ubhekele imininingwane: Miguel Ángel Gatón
  2. Inhloso yedatha: Lawula Ugaxekile, ukuphathwa kwamazwana.
  3. Ukusemthethweni: Imvume yakho
  4. Ukuxhumana kwemininingwane: Imininingwane ngeke idluliselwe kubantu besithathu ngaphandle kwesibopho esisemthethweni.
  5. Isitoreji sedatha: Idatabase ebanjwe yi-Occentus Networks (EU)
  6. Amalungelo: Nganoma yisiphi isikhathi ungakhawulela, uthole futhi ususe imininingwane yakho.

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