Thaum siv lub dielectric, khoom nruab nrab ntawm cov paib sib npaug ntawm lub capacitor yuav polarize… Thaum kawg txhua yam khoom muaj "dielectric breakdown point," uas qhov sib txawv yuav dhau los. siab dhau rau nws insulate, thiab nws ionizes thiab tso cai rau txoj kev tam sim no.
Yuav ua li cas thaum lub dielectric ntawm lub capacitor tawg?
Cov hluav taws xob tawg yuav tshwm sim yog tias qhov hluav taws xob siv rau lub capacitor siab dhau. Lub thickness thiab hom khoom siv cuam tshuam rau kev ua haujlwm voltage ntawm lub capacitor.
Yuav ua li cas thaum dielectric tawg tshwm sim?
Dielectric breakdown yog tsis ua haujlwm ntawm cov khoom siv insulating los tiv thaiv kev ntws ntawm tam sim no raws li kev siv hluav taws xob ntxhov siab. Lub zog tawg yog qhov hluav taws xob uas qhov tsis ua haujlwm tshwm sim, thiab cov khoom siv tsis yog hluav taws xob rwb thaiv tsev lawm.
Thaum lub capacitor dhau qhov kev tawg ntawm dielectric?
Nqe Lus Nug: Lub tshuab hluav taws xob siab uas them cov phaj sib txuas ua ke tau dhau qhov dielectric tawg: nws cov yeeb yaj kiab dielectric tsis tuaj yeem sawv ntawm qhov hluav taws xob muaj zog dhau thiab hloov nws cov qauv rau tsim kev ntiav zoo li conductive protrusion (luv luv; saib daim duab). Yog li ntawd, lub capacitor sai sai tso tawm.
Lub luag haujlwm ntawm dielectric hauv lub capacitor yog dab tsi?
Dielectrics hauv capacitors ua haujlwm peb lub hom phiaj: kom khaws cov phaj coj los ntawm kev sib cuag, tso cai rau cov phaj me me sib cais thiab yog li muaj peev xwm ntau dua; txhawm rau ua kom muaj peev xwm ua tau zoo los ntawm kev txo cov hluav taws xob hluav taws xob, uas txhais tau tias koj tau txais tib yam nqi ntawm qhov qis dua; thiab.
