Dab tsi yog qhov txawv ntawm resistors thiab capacitor?

Lub peev xwm ntawm cov capacitors sib txawv los khaws cov nqi kuj txawv. Tus nqi ntawm cov nqi khaws cia thaum lub capacitor raug rau qhov hluav taws xob ncaj qha ntawm 1 volt yog hu ua qhov no? Lub peev xwm ntawm lub capacitor. Lub hauv paus unit ntawm capacitance yog Farad. Txawm li cas los xij, hauv kev muaj tiag, Farad yog ib chav tsev tsis tshua muaj heev vim tias lub peev xwm ntawm lub capacitor feem ntau me dua 1 Farad. Cov kev siv feem ntau suav nrog microfarads, nanofarads, thiab picofarads, thiab lawv txoj kev sib raug zoo yog: 1 Farad=1000000 microfarads, 1 microfarad=1000 nanofarads, thiab 1000000 picofarads. Cov txheej txheem kev txheeb xyuas rau cov capacitors yog qhov pib zoo ib yam li cov resistors, uas tau muab faib ua peb hom: cov qauv ncaj qha, xim qauv qauv, thiab cov qauv lej.
Ntau lub capacitor yuav tsum muaj nyob rau hauv cov khoom siv hluav taws xob, uas ua lub luag haujlwm sib txawv hauv circuits. Zoo ib yam li cov resistors, feem ntau hu ua capacitor, qhia los ntawm tsab ntawv C. Capacitors kuj muab faib ua lub peev xwm ruaj khov thiab muaj peev xwm sib txawv. Tab sis feem ntau yog cov khoom muaj peev xwm ruaj khov, nrog cov khoom siv hluav taws xob electrolytic thiab ceramic capacitors feem ntau.
1. Txoj kev sau npe ncaj qha yog los sawv cev tus nqi nominal ntawm lub capacitor siv cov lej thiab cov units ntawm lub cev ntawm lub capacitor
2. Ib tug zauv sawv cev tsis muaj units. Ib tug mus rau plaub tus lej yog siv los sawv cev cov nuj nqis tseem ceeb, feem ntau yog PF, thaum lub peev xwm ntawm electrolytic capacitors yog UF
3. Cov lej sau: Feem ntau, peb tus lej yog siv los sawv cev qhov loj ntawm lub peev xwm, nrog thawj ob tus lej sawv cev rau cov lej tseem ceeb thiab tus lej thib peb sawv cev rau lub zog ntawm 10.
4. Siv cov xim rings los yog dots los sawv cev lub ntsiab ntawm cov capacitors. Cov xim code rau capacitors yog tib yam li cov resistors. Nyob rau hauv hluav taws xob circuits, capacitors yog siv los thaiv cov tam sim no ncaj qha los ntawm alternating tam sim no, raws li zoo raws li khaws cia thiab tso tawm nqi los ua raws li cov ntxaij lim dej, smoothing tawm pulsating signals. Me me capacitors feem ntau yog siv nyob rau hauv high-frequency circuits. Lub peev xwm loj capacitors feem ntau yog siv los lim thiab khaws cov nqi. Electrolytic capacitors muaj ib lub plhaub txhuas uas muaj cov electrolyte, thiab ob lub electrodes raug coj tawm raws li qhov zoo thiab tsis zoo electrodes. Tsis zoo li lwm cov capacitors, lawv cov polarity hauv Circuit Court tsis tuaj yeem txuas tsis raug, thaum lwm cov capacitors tsis muaj polarity. Txuas ob lub electrodes ntawm lub capacitor mus rau qhov zoo thiab tsis zoo terminals ntawm lub hwj chim mov. Txawm hais tias lub zog hluav taws xob raug txiav tawm tom qab ib ntus, tseem yuav muaj qhov seem seem ntawm ob tus pins. Peb hais tias lub khw muag khoom capacitor them nqi. Cov txheej txheem ntawm kev tsim hluav taws xob nruab nrab ntawm daim phiaj ntawm lub capacitor thiab accumulating hluav taws xob lub zog yog hu ua capacitor charging. Lub capacitor uas tau them tag nrho muaj qee qhov voltage ntawm ob qho kawg. Cov txheej txheem ntawm kev tso cov nqi khaws cia ntawm lub capacitor rau hauv Circuit Court yog hu ua qhov tso tawm ntawm lub capacitor.
Hauv cov hluav taws xob hluav taws xob, tam sim no tsuas yog ntws los ntawm cov capacitors thaum lub sijhawm them nyiaj. Tom qab cov txheej txheem them nyiaj tiav lawm, cov capacitors tsis tuaj yeem hla ncaj qha tam sim no thiab ua lub luag haujlwm hauv "kev thaiv tam sim no" hauv Circuit Court. Nyob rau hauv circuits, capacitors feem ntau yog siv rau coupling, bypassing, filtering, thiab lwm yam., tag nrho cov uas siv lawv cov yam ntxwv ntawm "ua AC thiab cais DC". Alternating tam sim no tsis tsuas yog alternates rov qab mus rau hauv kev taw qhia, tab sis nws qhov loj kuj hloov raws li tus qauv tsis tu ncua. Thaum lub capacitor txuas nrog AC lub zog hluav taws xob, nws tsis tu ncua tsub thiab tawm, thiab lub Circuit Court yuav ntws them thiab tawm tam sim no uas zoo ib yam nrog cov kev hloov hauv AC fais fab.