Lub capacitor yog hluav taws xob siv los khaws lub zog hluav taws xob. Nws muaj ob daim phiaj ua haujlwm sib cais los ntawm cov khoom siv insulating hu ua ** dielectric **. Thaum muaj voltage yog thov hla tus capacitor, ib daim teb hluav taws xob yog tsim ntawm cov paib, tso cai rau lub capacitor los khaws lub zog.
Yuav ua li cas capacitor ua haujlwm
1. Them:
Thaum voltage yog thov hla lub capacitor cov terminals, them npe rau ntawm cov phiaj. Ib lub phaj khaws tau tus nqi zoo, thaum sib sau tsis zoo them nqi. Cov ntaub ntawv dielectric ntawm cov phiaj txwv tsis pub them nqi los ntawm kev ntws ncaj qha los ntawm, khaws lub zog hauv hluav taws teb tsim. Them txuas ntxiv mus kom txog thaum lub voltage hla tus kws muaj peev xwm tau sib npaug ntawm cov ntawv siv voltage.
2. Kev rho tawm:
Thaum lub capacitor txuas nrog rau ntawm Circuit Court, tus nqi khaws cia ntws rov qab los ntawm Circuit Court, tsim kom muaj qhov tam sim no. Qhov no tso lub zog khaws cia rau Circuit Cable thauj mus kom txog thaum lub luag haujlwm tsis zoo.
Cov yam ntxwv tseem ceeb ntawm capacitors
- Capacitance:
Lub peev xwm ntawm lub capacitor los khaws tus nqi yog hu ua capacitance, ntsuas nyob rau hauv farads (f). Ib qho loj capacitance txhais tau tias yogmostuaj yeem khaws tus nqi ntau dua. Lub peev xwm capacitance yog cuam tshuam los ntawm thaj chaw saum npoo ntawm cov phiaj, qhov kev ncua deb ntawm lawv, thiab cov khoom ntawm cov khoom dielrictric.
- Lub zog cia:
Peev xwm kev nyab xeeb zoo li cov khoom siv sib txuas ib ntus rau cov tshuab hluav taws xob, zoo ib yam li roj teeb tab sis tsim rau kev siv luv luv. Lawv tuav cov kev hloov pauv ceev hauv voltage thiab du tawm cov kev hloov pauv, ua rau muaj kev lag luam ncig ua haujlwm.
- Txiab tam sim no thiab sib npaug series tiv (ESR):
Peev kev muaj peev xwm muaj kev siv hluav taws xob muaj zog thaum lub luag haujlwm thiab kaw tsheb mus. Kev xau tam sim no yog hais txog qhov kev them nyiaj qeeb qeeb los ntawm cov khoom dielectric txawm tias tsis muaj lub nra. ESR yog sab hauv kev tawm tsam tshwm sim los ntawm cov ntaub ntawv nyob rau hauv capacitor, cuam tshuam nws txoj kev ua tau zoo.
Siv cov ntawv thov ntawm capacitors
- Lim:
Hauv cov khoom siv fais fab, lub peev xwm capacitors ua raws li cov ntxaij lim dej kom du tawm thiab tshem tawm cov suab nrov tsis xav tau, ua kom pom kev voltage ruaj khov.
- Coupling thiab decoupling:
Hauv kev kis tus kis, capacitors tau siv los dhau cov cim thaum thaivDC Cheebtsam, tiv thaiv DC kev hloov pauv los ntawm kev cuam tshuam nrog cov kev ua tau zoo.
- Lub zog cia:
Peev khaws cia thiab tso tawm lub zog sai sai, ua rau lawv muaj txiaj ntsig zoo rau cov cuab yeej xws li cov cuab yeej siv hluav taws xob uas xav tau cov qoob loo me me uas xav tau cov qoob loo me ntsis ntawm kev kub siab tam sim no.
Lub ntsiab
Peev xwm lub luag haujlwm tseem ceeb hauv cov hluav taws xob hauv hluav taws xob los ntawm kev khaws cia thiab tso hluav taws xob hluav taws xob. Lawv pab tswj cov hluav taws xob, khaws lub zog, thiab tswj cov cim. Xaiv cov hom yog thiab tshwj xeeb ntawm lub caportitics yog qhov tseem ceeb rau kom ua kom muaj kev ua tau zoo thiab kev ntseeg tau ntawm cov hluav taws xob hluav taws xob.
Lub Sijhawm Post: Sep-11-2024