Video: Vim li cas electrolytic capacitors polarized?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Electrolytic capacitor yog polarized Cheebtsam vim lawv cov asymmetrical kev tsim kho thiab yuav tsum tau ua hauj lwm nrog ib tug ntau dua voltage (ie, zoo dua) ntawm lub anodethan ntawm lub cathode txhua lub sij hawm. Vim li no lub anodeterminal yog cim nrog ib tug ntxiv kos npe thiab lub cathode nrog ib tug minussign.
Kuj nug, yog capacitors polarized?
Ceramic, mica thiab qee qhov electrolytic capacitors tsis yog- polarized . Tej zaum koj kuj yuav hnov tib neeg hu lawv "bipolar" capacitors . A polarized ("polar") capacitor yog hom capacitor uas muaj implicitpolarity - nws tsuas yog txuas tau ib txoj hauv kev. Polarized capacitor feem ntau yog electrolytics.
Tsis tas li ntawd, vim li cas nws thiaj yuav tsum tau txuas lub electrolytic capacitor nrog qhov tseeb polarity? Yog polarity yog thim rov qab, cov kev taw qhia tam sim no nyob rau hauv anode hloov, thiab oxide txheej tau txais ib tug tam sim no nyob rau hauv lub thim rov qab kev taw qhia. Nws tso cai rau qhov tam sim no vim nws tawm tsam qhov tam sim no thaum nws tsim.
Hauv qhov no, vim li cas thiaj siv electrolytic capacitors?
A capacitor tuaj yeem ua raws li AC resistor. Tshwj xeeb yog txhuas electrolytic capacitor yog siv nyob rau hauv ntau daim ntawv thov raws li ib tug decoupling capacitors lim orbypass qhov tsis xav tau AC zaus rau hauv av lossis forcapacitive coupling ntawm lub suab AC teeb liab. Tom qab ntawd lub dielectric yog siv tsuas yog thaiv DC.
Puas yog zaj duab xis capacitors polarized?
Feem ntau, zaj duab xis capacitors tsis yog polarized , yog li ob lub terminals yog interchangeable. Muaj ob hom yas sib txawv zaj duab xis capacitors , ua nrog ob qhov sib txawv electrode configurations: Metallized zaj duab xis capacitors yog ua los ntawm ob metallized zaj duab xis nrog yas zaj duab xis raws li lub dielectric.
Pom zoo:
Vim li cas suab tsis tuaj yeem polarized?
Teb: Suab nthwv dej, yog longitudinal, txhais tau hais tias lawv oscillate parallel mus rau cov kev taw qhia ntawm lawv cov lus tsa suab. Txij li thaum tsis muaj ib feem ntawm lub suab nthwv dej oscillation uas yog perpendicular rau nws cov lus tsa suab, suab tsis tuaj yeem polarized
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Puas muaj peev xwm hluav taws xob thiab lub zog muaj peev xwm tib yam Vim li cas lossis vim li cas ho tsis?
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Qee cov polarized capacitors muaj lawv cov polarity tsim los ntawm kev kos lub qhov zoo.Ceramic, mylar, yas zaj duab xis, thiab cua capacitors donothave polarity markings, vim hais tias cov hom no yog nonpolarized (lawv tsis polarity rhiab heev).Capacitors yog ib yam khoom muaj nyob rau hauv electroniccircuits