Capacitors muaj nyob hauv yuav luag txhua yam khoom siv hluav taws xob, thiab ua haujlwm rau ntau daim ntawv thov tseem ceeb hauv kev tsim hluav taws xob. Capacitors muab cov kev xaiv lim tau yooj yim, txo suab nrov, lub zog cia, thiab muaj peev xwm hnov qab rau cov neeg tsim qauv, ntawm lwm yam kev siv.
Hauv phau ntawv qhia no, peb saib ntau yam ntawm cov khoom siv hluav taws xob hauv cov khoom siv hluav taws xob thiab khoom siv.
Cov Capacitors siv rau dab tsi?
Ua ke nrog cov resistors, capacitors feem ntau yog siv los ua lub ntsiab ntawm cov ntxaij lim dej ntau zaus. Cov qauv lim uas muaj thiab topologies muaj ntau heev. Cov no tuaj yeem raug kho kom haum rau qhov zaus thiab kev ua tau zoo los ntawm kev xaiv cov khoom tsim nyog thiab zoo. Cov hom lim tsim muaj xws li:
- High Pass Filter
- Low Pass Filter
- Band Pass Filter
- Band Stop Filter
- Ntawv Filter
- Txhua Pass Filter
- Equalization Lim
kab hauv qab
Capacitors ua lub luag haujlwm tseem ceeb hauv kev ua haujlwm ntawm cov khoom siv hluav taws xob digital los ntawm kev tiv thaiv microchips rhiab los ntawm lub suab nrov ntawm lub zog teeb liab. Lub suab nrov no tuaj yeem ua rau tus cwj pwm txawv txav. Capacitors siv hauv daim ntawv thov no hu ua decoupling capacitor. Cov capacitors no yuav tsum tau muab tso rau ze rau txhua lub microchip kom ua tau zoo vim tias cov kab hluav taws xob hauv Circuit Court ua raws li cov kav hlau txais xov thiab khaws cov suab nrov ntawm ib puag ncig ib puag ncig. Decoupling thiab by-pass capacitors kuj tau siv nyob rau hauv ib cheeb tsam ntawm ib lub voj voog kom txo tau tag nrho cov kev cuam tshuam ntawm hluav taws xob nrov.
Coupling lossis DC Blocking Capacitors
Capacitors tuaj yeem dhau AC cov cim qhia thaum thaiv DC thiab tuaj yeem siv los cais cov AC thiab DC cov khoom ntawm lub teeb liab. Tus nqi ntawm lub capacitor tsis tas yuav tsum yog qhov tseeb lossis raug rau kev sib txuas. Txawm li cas los xij, nws yuav tsum yog tus nqi siab, vim tias qhov reactance ntawm lub capacitor tsav qhov kev ua tau zoo hauv cov ntawv sib txuas.
Snubber Capacitor
Nyob rau hauv circuits uas lub siab-inductance load tau tsav, xws li lub cev muaj zog lossis transformer, lub zog hloov pauv loj tuaj yeem tshwm sim raws li lub zog khaws cia hauv inductive load yog dheev tawm. Qhov kev tso tawm no tuaj yeem ua rau puas tsuaj rau cov khoom thiab kev sib cuag.
Kev siv lub capacitor tuaj yeem txwv, lossis snub, qhov hluav taws xob sib kis thoob plaws hauv lub voj voog, ua rau kev ua haujlwm zoo dua thiab kev ntseeg siab dua. Siv cov txheej txheem snubbing nyob rau hauv qis-power circuits tiv thaiv spikes los ntawm tsim undesirable xov tooj cua zaus cuam tshuam. Qhov kev cuam tshuam no ua rau tus cwj pwm tsis zoo hauv circuits thiab ua rau muaj teeb meem hauv kev tau txais cov ntawv pov thawj thiab kev pom zoo.
kab hauv qab
Capacitors yog cov roj teeb me me uas muaj peev xwm cia lub zog tshwj xeeb tshaj li cov roj teeb tshuaj lom neeg. Thaum ntau lub zog xav tau nyob rau lub sijhawm luv luv, cov capacitors loj thiab cov tsev txhab nyiaj ntawm cov capacitor yog qhov kev xaiv zoo tshaj rau ntau daim ntawv thov. Lub tsev txhab nyiaj Capacitor khaws lub zog rau cov ntawv thov xws li cov lasers, radars, particle accelerators, thiab phom rail. Ib qho kev siv ntau ntawm cov mem tes-power capacitor yog nyob rau hauv lub flash ntawm cov koob yees duab pov tseg, uas yog them sai sai los ntawm lub flash, muab cov mem tes loj ntawm tam sim no.
Resonant lossis Tuned Circuit Applications
Thaum cov resistors, capacitors, thiab inductors ua cov lim dej, qee qhov kev sib txuas tuaj yeem ua rau resonance amplifying lub teeb liab input. Cov kab hluav taws xob no nthuav tawm cov teeb liab ntawm cov zaus resonant, tsim kom muaj hluav taws xob siab los ntawm cov khoom siv hluav taws xob tsawg, thiab siv los ua oscillators thiab cov ntxaij lim dej tuned. Nyob rau hauv resonant circuits, yuav tsum tau saib xyuas los xaiv cov khoom uas muaj peev xwm ciaj sia qhov voltages uas txhua feem pom nyob thoob plaws nws, los yog nws yuav sai sai.
kab hauv qab
Kev ntsuas lub peev xwm tsis ntev los no tau dhau los ua ib qho tseem ceeb hauv cov khoom siv hluav taws xob siab heev. Txawm li cas los xij, capacitive sensors tau siv rau ntau xyoo hauv ntau daim ntawv thov rau txoj haujlwm, av noo, qib dej, kev tsim khoom zoo, thiab kev nrawm. Capacitive sensing ua haujlwm los ntawm kev txheeb xyuas qhov kev hloov pauv ntawm lub peev xwm ntawm ib puag ncig hauv zos los ntawm kev hloov pauv hauv dielectric-ib qho kev hloov ntawm qhov kev ncua deb ntawm daim hlau ntawm lub capacitor, lossis kev hloov ntawm thaj tsam ntawm lub capacitor.
Capacitor Safety
Raws li lub zog cia khoom, capacitors tuaj yeem khaws cov khoom txaus ntshai ntawm lub zog. Lub zog siab no tuaj yeem ua rau tuag taus hluav taws xob poob siab thiab cov cuab yeej puas tsuaj txawm tias lub capacitor raug txiav tawm ntawm lub zog rau lub sijhawm ntau. Vim li no, nws yog ib lub tswv yim zoo kom tso cov capacitors ua ntej ua haujlwm ntawm cov khoom siv hluav taws xob.
Electrolytic capacitor yog qhov ua rau tsis muaj zog nyob rau hauv qee yam kev mob, tshwj xeeb tshaj yog tias qhov hluav taws xob ntawm lub polarized electrolytic capacitor yog thim rov qab. Capacitors siv nyob rau hauv high-power thiab high-voltage daim ntaub ntawv kuj yuav ua tsis tau tejyam hnyav raws li cov ntaub ntawv dielectric tawg thiab vaporize.
