Capacitor yog cov cuab yeej siv feem ntau hauv kev tsim hluav taws xob, yog ib qho ntawm cov khoom siv hluav taws xob, cov cuab yeej siv tau yooj yim yog qhov xav tau lub zog (hluav taws xob) qhov chaw ntawm lub cuab yeej hu ua cov cuab yeej siv, tsis muaj lub zog (hluav taws xob) qhov chaw ntawm lub cuab yeej yog passive ntaus ntawv. .
Lub luag hauj lwm thiab kev siv cov capacitors feem ntau yog ntau yam, xws li: lub luag hauj lwm ntawm bypass, decoupling, filtering, lub zog cia; Thaum ua tiav ntawm oscillation, synchronization thiab lub luag haujlwm ntawm lub sijhawm tas li.
Kev rho tawm DC: Lub luag haujlwm yog los tiv thaiv DC los ntawm thiab cia AC hla.
Bypass (decoupling): Muab txoj kev qis-impedance rau qee yam khoom sib txuas hauv AC Circuit Court.
Bypass capacitor: Ib qho bypass capacitor, tseem hu ua decoupling capacitor, yog lub zog cia khoom siv uas muab lub zog rau lub cuab yeej. Nws siv qhov zaus impedance yam ntxwv ntawm lub capacitor, zaus tus yam ntxwv ntawm lub zoo tagnrho capacitor raws li qhov zaus nce, impedance txo qis, ib yam li lub pas dej, nws tuaj yeem ua rau cov zis voltage tso tawm tsis zoo, txo cov load voltage fluctuation. Lub bypass capacitor yuav tsum nyob ze li sai tau rau lub hwj chim mov tus pin thiab av tus pin ntawm lub load ntaus ntawv, uas yog qhov yuav tsum tau impedance.
Thaum kos lub PCB, them nyiaj tshwj xeeb rau qhov tseeb tias tsuas yog thaum nws nyob ze ntawm ib qho khoom siv nws tuaj yeem cuam tshuam cov av muaj peev xwm nce siab thiab suab nrov los ntawm qhov hluav taws xob ntau dhau lossis lwm yam teeb liab kis tau tus mob. Txhawm rau muab nws bluntly, AC tivthaiv ntawm DC fais fab mov yog txuas mus rau lub hwj chim mov los ntawm lub capacitor, uas plays lub luag hauj lwm ntawm purifying DC fais fab mov. C1 yog lub bypass capacitor hauv daim duab hauv qab no, thiab daim duab yuav tsum nyob ze li sai tau rau IC1.
Decoupling capacitor: Lub decoupling capacitor yog qhov cuam tshuam ntawm cov teeb liab tso zis raws li cov khoom lim, lub decoupling capacitor yog sib npaug ntawm lub roj teeb, kev siv nws cov nqi thiab tawm, kom lub teeb liab amplified yuav tsis cuam tshuam los ntawm kev hloov ntawm tam sim no. . Nws lub peev xwm nyob ntawm qhov zaus ntawm lub teeb liab thiab qib ntawm kev tawm tsam ntawm ripples, thiab decoupling capacitor yog los ua lub luag haujlwm "roj teeb" kom tau raws li cov kev hloov pauv ntawm cov tsav tam sim no thiab tsis txhob cuam tshuam kev sib txuas ntawm ib leeg.
Lub bypass capacitor yog tiag tiag de-coupled, tab sis lub bypass capacitor feem ntau yog hais txog high-frequency bypass, uas yog, los txhim kho lub high-frequency switching suab nrov ntawm ib tug low-impedance tso txoj kev. Lub high-frequency bypass capacitance feem ntau me me, thiab resonant zaus feem ntau yog 0.1F, 0.01F, thiab lwm yam. Lub peev xwm ntawm lub decoupling capacitor feem ntau loj, uas tej zaum yuav yog 10F los yog loj, nyob ntawm seb cov kev faib tsis nyob rau hauv lub Circuit Court thiab qhov kev hloov ntawm lub tsav tam sim no.
Qhov sib txawv ntawm lawv: lub bypass yog lim cov cuam tshuam hauv cov teeb liab input raws li cov khoom, thiab cov decoupling yog lim cov cuam tshuam hauv cov teeb liab tso tawm raws li cov khoom kom tsis txhob cuam tshuam cov teeb liab rov qab mus rau lub hwj chim mov.
Coupling: Ua raws li kev sib txuas ntawm ob lub voj voog, tso cai rau AC teeb liab hla thiab xa mus rau theem tom ntej.
Lub capacitor yog siv los ua cov khoom sib txuas txhawm rau txhawm rau xa cov teeb liab yav dhau los mus rau theem tom ntej, thiab txhawm rau cuam tshuam cov kev cuam tshuam ntawm yav dhau los ncaj qha tam sim no nyob rau theem tom ntej, kom lub Circuit Court debugging yog qhov yooj yim thiab kev ua haujlwm ruaj khov. Yog hais tias AC teeb liab amplification tsis hloov yam tsis muaj lub capacitor, tab sis qhov chaw ua hauj lwm ntawm txhua theem yuav tsum tau redesigned, vim hais tias ntawm lub zog ntawm lub hauv ntej thiab nram qab theem, debugging qhov chaw ua hauj lwm yog heev nyuaj, thiab nws yuav luag tsis yooj yim sua kom ua tiav ntawm ntau qib.
Lim: Qhov no yog qhov tseem ceeb heev rau lub voj voog, lub capacitor qab CPU yog lub luag haujlwm no.
Ntawd yog, qhov ntau dua qhov f, qhov me me ntawm impedance Z ntawm lub capacitor. Thaum tsis tshua muaj zaus, capacitance C vim tias qhov impedance Z yog qhov loj, cov cim qhia tau zoo tuaj yeem dhau mus; Nyob rau ntawm qhov siab zaus, capacitor C yog me me heev vim impedance Z, uas yog sib npaug rau luv luv-circuiting high-frequency nrov rau GND.
Filter action: zoo tagnrho capacitance, qhov loj dua qhov capacitance, qhov me me ntawm impedance, qhov ntau zaus dhau. Electrolytic capacitors feem ntau yog ntau tshaj 1uF, uas muaj qhov loj inductance tivthaiv, yog li cov impedance yuav loj tom qab lub siab zaus. Peb feem ntau pom tias qee zaum muaj qhov loj capacitance electrolytic capacitor nyob rau hauv parallel nrog ib tug me me capacitor, qhov tseeb, ib tug loj capacitor los ntawm tsawg zaus, me me capacitance los ntawm high zaus, thiaj li mus tag nrho lim tawm siab thiab tsawg frequencies. Qhov siab dua qhov zaus ntawm lub capacitor, qhov ntau dua qhov attenuation, lub capacitor zoo li lub pas dej, ob peb tee dej tsis txaus ua rau muaj kev hloov pauv loj hauv nws, uas yog hais tias, qhov voltage fluctuation tsis yog lub sijhawm zoo thaum qhov voltage tuaj yeem buffered.
Daim duab C2 Temperature them: Txhawm rau txhim kho kev ruaj ntseg ntawm Circuit Court los ntawm kev them nyiaj rau cov nyhuv ntawm qhov kub tsis txaus adaptability ntawm lwm cov khoom.
Kev tsom xam: Vim hais tias lub peev xwm ntawm lub sij hawm capacitor txiav txim siab oscillation zaus ntawm kab oscillator, lub peev xwm ntawm lub sij hawm capacitor yuav tsum muaj kev ruaj khov thiab tsis hloov nrog kev hloov ntawm ib puag ncig cov av noo, thiaj li ua rau oscillation zaus ntawm cov kab oscillator ruaj khov. Yog li ntawd, capacitors nrog qhov zoo thiab qhov tsis zoo ntawm qhov kub thiab txias coefficients yog siv nyob rau hauv parallel los ua kom tiav qhov kub thiab txias. Thaum qhov kev khiav hauj lwm kub nce, lub peev xwm ntawm C1 yog nce, thaum lub peev xwm ntawm C2 yog txo. Tag nrho lub peev xwm ntawm ob lub capacitor nyob rau hauv parallel yog qhov sib npaug ntawm cov peev txheej ntawm ob lub capacitor. Txij li thaum ib lub peev xwm nce ntxiv thaum lwm qhov poob qis, tag nrho lub peev xwm yog qhov tsis hloov pauv. Ib yam li ntawd, thaum qhov kub thiab txias yog txo, lub peev xwm ntawm ib lub capacitor raug txo thiab lwm qhov yog nce, thiab tag nrho cov peev xwm yog qhov pib tsis hloov, uas ua rau lub zog oscillation zaus thiab ua tiav lub hom phiaj ntawm qhov kub thiab txias.
Sijhawm: Lub capacitor yog siv ua ke nrog cov resistor los txiav txim lub sij hawm tas li ntawm Circuit Court.
Thaum lub teeb liab input dhia los ntawm qis mus rau siab, RC Circuit Court yog input tom qab buffering 1. Cov yam ntxwv ntawm capacitor charging ua rau lub teeb liab ntawm taw tes B tsis dhia tam sim ntawd nrog lub teeb liab input, tab sis muaj cov txheej txheem ntawm maj mam nce. Thaum loj txaus, qhov tsis 2 flips, ua rau qeeb dhia ntawm qis mus rau siab ntawm cov zis.
Lub sij hawm tas mus li: Siv cov RC series sib xyaw ua ke ua piv txwv, thaum lub teeb liab input voltage yog siv rau qhov kawg input, qhov voltage ntawm lub capacitor maj mam nce. Kev them nyiaj tam sim no txo qis nrog qhov nce ntawm qhov hluav taws xob, qhov resistor R thiab capacitor C txuas nrog hauv series rau lub teeb liab tawm tswv yim VI, thiab cov teeb liab tso tawm V0 los ntawm lub capacitor C, thaum tus nqi RC (τ) thiab input square yoj. dav tW raws li: τ "tW", qhov Circuit Court no hu ua integrated circuit.
Tuning: Systematic tuning of zaus-dependent circuits, xws li xov tooj ntawm tes, xov tooj cua, thiab TV teeb.
Vim hais tias lub resonant zaus ntawm IC tuned oscillating Circuit Court yog ib qho kev ua haujlwm ntawm IC, peb pom tias qhov sib piv ntawm qhov siab tshaj plaws rau qhov tsawg kawg nkaus resonant zaus ntawm lub oscillating Circuit Court nws txawv nrog lub hauv paus square ntawm lub capacitance ratio. Qhov sib piv capacitance ntawm no yog hais txog qhov sib piv ntawm qhov capacitance thaum qhov hluav taws xob thim rov qab yog qhov qis tshaj plaws mus rau qhov capacitance thaum qhov hluav taws xob thim rov qab yog qhov siab tshaj. Yog li ntawd, tus yam ntxwv kho qhov nkhaus ntawm Circuit Court (bias-resonant zaus) yog ib qho parabola.
Rectifier: Tig los yog tawm ib qho kev hloov pauv ib nrab kaw ntawm lub sijhawm teem tseg.
Lub zog cia: khaws cia hluav taws xob tso tawm thaum tsim nyog. Xws li lub koob yees duab flash, khoom siv cua sov, thiab lwm yam.
Feem ntau, electrolytic capacitors yuav muaj lub luag hauj lwm ntawm lub zog cia, rau tshwj xeeb lub zog cia capacitors, lub mechanism ntawm capacitive zog cia yog ob chav hluav taws xob txheej capacitors thiab Faraday capacitors. Nws daim ntawv tseem ceeb yog supercapacitor zog cia, nyob rau hauv uas supercapacitor yog capacitors siv lub hauv paus ntsiab lus ntawm ob txheej hluav taws xob.
Thaum cov hluav taws xob siv hluav taws xob tau siv rau ob daim hlau ntawm supercapacitor, qhov zoo electrode ntawm lub phaj khaws cov nqi zoo, thiab cov phaj tsis zoo khaws cov nqi tsis zoo, xws li hauv cov khoom siv hluav taws xob zoo tib yam. Nyob rau hauv lub teb hluav taws xob generated los ntawm tus nqi ntawm ob daim hlau ntawm lub supercapacitor, qhov opposite nqi yog tsim nyob rau hauv lub interface ntawm cov electrolyte thiab cov electrode kom sib npaug ntawm lub sab hauv hluav taws xob teb ntawm lub electrolyte.
Tus nqi zoo thiab tus nqi tsis zoo no tau teem rau hauv qhov sib txawv ntawm qhov chaw sib txuas ntawm ob theem sib txawv nrog qhov sib txawv ntawm qhov zoo thiab qhov tsis zoo, thiab cov txheej txheem them nqi no hu ua ob txheej hluav taws xob, yog li lub peev xwm hluav taws xob loj heev.
Post lub sij hawm: Aug-15-2023
