Capacitors (CAPs) yog cov khoom tseem ceeb hauv lub tshuab suab. Lawv muaj qhov sib txawv voltage, tam sim no thiab cov qauv tsim. Txhawm rau xaiv cov capacitor twg yog qhov zoo tshaj plaws rau lub suab, cov neeg ua haujlwm yuav tsum nkag siab txhua yam ntawm CAP. Kev ncaj ncees ntawm lub suab teeb liab feem ntau nyob ntawm qhov kev xaiv ntawm capacitors. Yog li ntawd, thaum xaiv cov cuab yeej zoo, txhua yam tseem ceeb yuav tsum tau txiav txim siab.
Cov suab CAP tsis yog tshwj xeeb rau kev ua haujlwm siab thiab muab cov suab zoo dua li cov qauv sib xyaw. Cov hom capacitors uas feem ntau siv hauv cov xov tooj cua yog aluminium electrolytic thiab zaj duab xis CAPs, thiab cov capacitors twg yog qhov zoo tshaj plaws rau lub suab hauv cov xwm txheej tshwj xeeb yog nyob ntawm cov circuits thiab cov cuab yeej siv: cov suab nrov, CD thiab cov twj paj nruag ntaus suab paj nruag, bass guitars thiablwm tus.
Keeb kwm ntawm lub suab capacitor
Lub capacitor yog ib qho ntawm cov khoom siv hluav taws xob qub tshaj plaws. Hluav taws xob conductors tau pom nyob rau hauv 1729. Xyoo 1745, German inventor Ewald Georg von Kleist nrhiav tau lub nkoj Leiden uas tau los ua thawj CAP. Physicist Pieter van Müssenbrook, tus kws kho mob hauv University of Leiden, nrhiav tau lub thawv Leiden ntawm nws tus kheej hauv xyoo 1746.
Tam sim no, Leiden hub yog lub khob iav npog nrog cov ntawv hlau sab hauv thiab tawm. Lub CAP ua haujlwm raws li kev khaws cia hluav taws xob, thiab cov capacitors twg yog qhov zoo tshaj plaws rau lub suab yuav nyob ntawm lub capacitance, vim tias qhov loj ntawm daim duab no, cov hluav taws xob ntau yuav khaws cia. Lub capacitance nyob ntawm qhov luaj li cas ntawm cov phaj sib txawv, qhov kev ncua deb ntawm daim hlau thiab qhov xwm ntawm cov insulator ntawm lawv.
Capacitors siv nyob rau hauv lub suab amplifiers tuaj nyob rau hauv ntau hom, xws li cov CAP uas muaj hlau ntawv rau ob daim hlau thiab impregnated ntawv ntawm lawv. Metallized paper (MP) capacitors, tseem hu ua roj-daim ntawv CAPs thiab metalized paper single-layer capacitors (MBGOs) rau suab, uas yog siv hauv AC, DC thiab mem tes circuits.
Tom qab ntawd, mylar (polyester) thiab lwm yam khoom siv hluav taws xob tau dhau los ua ntau dua. Xyoo 1960, hlau CAP nrog mylar tau nrov heev. Ob lub zog ntawm cov cuab yeej no yog lawv qhov me me thiab qhov tseeb tias lawv kho tus kheej. Niaj hnub no, cov no yog cov capacitors zoo tshaj plaws rau lub suab, lawv tau siv nyob rau hauv yuav luag txhua yam khoom siv hluav taws xob. Vim yog qhov ntim loj ntawm kev lag luam thiab tsim cov hom capacitors, lawv pheej yig heev.
Lwm hom CAP yog electrolytic nrog cov qauv tsim tshwj xeeb uas muaj feem ntau thiab cov nqi siab heev txij li 1 uF mus rau ntau kaum tawm txhiab uF. Lawv tsuas yog siv rau decoupling lossis lim hauv cov khoom siv hluav taws xob. Feem ntau hauv kev tsim amplifier yog metallized Mylar lossis polyester capacitors (MKT). Cov amplifiers zoo dua feem ntau siv metalized polypropylene (MPP).
Component technology
CAP thev naus laus zis feem ntau txiav txim siab cov yam ntxwv ntawm cov khoom siv, thiab cov capacitors twg yog qhov zoo tshaj plaws rau lub suab nyob ntawm cov khoom siv hauv chav kawm. Cov khoom siv high-end muaj nruj tolerances thiab yog kim tshaj li cov hom phiaj capacitors. Tsis tas li ntawd, CAPs zoo li no tuaj yeem rov siv dua. Cov tshuab suab zoo siab xav tau CAPs zoo kom xa cov suab nrov zoo tshaj plaws.
Qhov kev ua tau zoo, lossis yuav ua li cas cov capacitors cuam tshuam rau lub suab, nyob ntawm ntau qhov lawv tau soldered rau PCB. Soldering stresses passive Cheebtsam, uas yuav ua rau piezoelectric stresses thiab cracking ntawm nto-mounted CAPs. Thaum soldering capacitors, koj yuav tsum siv cov kev txiav txim kom raug thiab ua raws li cov lus pom zooprofile.
Txhua tus mylar audio capacitors tsis yog polarized, txhais tau tias lawv tsis tas yuav tsum tau sau tias qhov zoo lossis qhov tsis zoo. Lawv txoj kev sib txuas hauv cov saw tsis muaj teeb meem. Lawv nyiam nyob rau hauv cov khoom siv hluav taws xob zoo vim lawv qhov poob qis thiab txo qhov cuam tshuam thaum cov khoom loj tso cai.
MKC metallized polycarbonate hom tsis siv ntxiv lawm. Nws paub tias ERO MKC hom tseem siv dav vim tias lawv muaj suab paj nruag sib luag nrog cov xim me me. MKP hom muaj lub suab zoo dua nrog rau lub suab dav dua.
Ib hom me me ntawm MKV capacitor yog metallized polypropylene CAP hauv roj. Nws yog qhov zoo tshaj plaws capacitor rau suab vim tias nws muaj cov yam ntxwv muaj zog dua li cov ntawv roj-coated metallized.
Zoo ntawm cov ntsiab lus passive
Capacitors, tshwj xeeb tshaj yog thaum lawv nyob rau ntawm cov kab hluav taws xob tso tawm, cuam tshuam rau lub suab zoo ntawm lub suab kaw lus.
Muaj ntau yam uas txiav txim siab qhov zoo ntawm CAP, tsis muaj qhov tsis ntseeg qhov tseem ceeb rau lub suab:
- Kev ua siab ntev thiab lub peev xwm tiag tiag yuav tsum tau siv rau hauv cov lim dej.
- Capacitance piv rau zaus, yog li 1 microfarad ntawm 1,000 Hz tsis txhais hais tias 1 microfarad ntawm 20 kHz.
- Internal resistance (ESR).
- Liab tam sim no.
- Kev laus yog qhov tseem ceeb uas yuav hloov zuj zus mus rau lub sijhawm rau txhua yam khoom.
Qhov kev xaiv zoo tshaj plaws ntawm daim ntawv thov capacitor nyob ntawm daim ntawv thov hauv Circuit Court thiab qhov yuav tsum tau muaj peev xwm:
- Ntau yam ntawm 1 pF txog 1 nF - tswj thiab tawm tswv yim circuits. Qhov ntau yam no yog siv los tshem tawm cov suab nrov nrov ntawm lub suab channel lossis rau kev tawm tswv yim xws li Quad 606 amplifier choj, SGM capacitor hauv suab yog qhov kev xaiv zoo tshaj plaws hauv qhov ntau. Nws muaj qhov kam rau ua tau zoo heev (txog 1%) thiab tsis tshua muaj kev cuam tshuam thiab suab nrov, tab sis kim heev. ISS lossis MCP yog lwm txoj hauv kev zoo. Ceramic CAPs yuav tsum raug zam ntawm kab teeb liab vim tias lawv tuaj yeem ua rau tsis muaj kab sib txawv ntxiv txog li 1%.
- From 1 nF mus rau 1 uF - coupling, decoupling thiab vibration suppression. Lawv feem ntau siv nyob rau hauv lub tshuab suab thiab tseem nyob nruab nrab ntawm theem uas muaj qhov sib txawv ntawm DC qib, kev co tshem tawm thiab hauv cov lus tawm tswv yim. Feem ntau, zaj duab xis capacitors yuav siv nyob rau hauv no ntau txog 4.7 microfarads. Qhov zoo tshaj plaws capacitor xaiv rau lub suab thiab suab yog polystyrene (MKS), polypropylene (MKP). Polyethylene (MKT) yog tus nqi qis dua.
- 1 Ф thiab siab dua - cov khoom siv hluav taws xob, tso zis hluav taws xob, lim dej, rwb thaiv tsev. Qhov kom zoo dua yog siab heev capacitance (txog 1 farad). Tab sis muaj ob peb downsides. Electrolytic CAPs raug rau kev laus thiab ziab. Tom qab 10 xyoo lossis ntau dua, cov roj dries tawm thiab tseem ceeb xws li ESR hloov. Lawv yog polarized thiab yuav tsum tau hloov txhua txhua 10 xyoo los yog lawv yuav tsis zoo rau lub suab. Thaum tsim cov kev sib txuas ntawm electrolytes rauCov teeb meem kab teeb meem feem ntau tuaj yeem zam tau los ntawm kev rov xam lub sijhawm tas li (RxC) kom qis qis qis dua 1 microfarad. Qhov no yuav pab txiav txim seb qhov twg electrolytic capacitor yog qhov zoo tshaj plaws rau lub suab. Yog tias qhov no ua tsis tau, nws yog ib qho tseem ceeb uas cov electrolyte tsawg dua 1V DC thiab CAP zoo (BHC Aerovox, Nichicon, Epcos, Panasonic) yog siv.
Los ntawm xaiv qhov kev daws teeb meem zoo tshaj plaws rau txhua qhov haujlwm, tus tsim tawm tuaj yeem ua tiav lub suab zoo tshaj plaws. Kev nqis peev hauv CAPs zoo muaj txiaj ntsig zoo rau lub suab zoo ntau dua li lwm cov khoom siv.
Testing CAP ntsiab rau daim ntawv thov
Muaj kev nkag siab zoo uas CAPs sib txawv tuaj yeem hloov lub suab zoo ntawm cov ntawv thov suab nyob rau hauv cov xwm txheej sib txawv. Qhov twg capacitors rau nruab, nyob rau hauv dab tsi circuits thiab nyob rau hauv dab tsi tej yam kev mob - tseem yog cov feem ntau tham cov ntsiab lus ntawm cov kws tshwj xeeb. Tias yog vim li cas nws yog qhov zoo dua tsis rov tsim dua lub log hauv cov ntsiab lus nyuaj no, tab sis siv cov txiaj ntsig ntawm cov ntawv pov thawj. Qee lub suab hluav taws xob zoo li loj heev, thiab kev sib kis hauv lub suab ib puag ncig xws li hauv av thiab chassis tuaj yeem yog qhov teeb meem loj. Nws raug pom zoo kom ntxiv non-linearity thiab natural distortion rau qhov kev sim los ntawm kev sim cov seem seem ntawm kos.
| Dielectric | YPolystyrene | YPolystyrene | YPolypropylene | YPolyester | Silver-mica | YPolycarb | |
| Kub | 72 | 72 | 72 | 72 | 72 | 73 | 72 |
| qib siab | 160 | 63 | 50 | 600 | 500 | 50 | 50 |
| Kev % | 2.5 | 1 | 2 | 10 | 1 | 10 | 10 |
| Error % | 2, 18% | 0, 28% | 0, 73% | -7, 06% | 0, 01% | -0, 09% | -1, 72% |
| 0.000053 | 0.000028 | 0.000122 | 0.004739 | 0.000168 | 0.000108 | 0.000705 | |
| Absorption | 0, 02% | 0, 02% | 0, 04% | 0, 23% | 0, 82% | 0, 34% | n / |
| DCR, 100 V | 3.00E + 13 | 2.00E + 15 | 3.50E + 14 | 9.50E +10 | 2.00E + 12 | 3.00E + 12 | n / |
| Phase, 2 MHz | -84 | -84 | -86 | -84 | -86 | -84 | n / |
| R, 2 MHz | 6 | 7,8 | 9, 2 | 8,5 | 7, 6 | 7, 6 | n / |
| Native daws teeb meem, MHz | 7 | 7, 7 | 9,7 | 7, 5 | 8,4 | 9, 2 | n / |
| Bridge | low | low | qis heev | siab | low | low | siab |
yam ntxwv ntawm cov qauv
Nyob rau hauv cov ntaub ntawv zoo tagnrho, tus tsim qauv xav kom lub capacitor raws nraim nws tus nqi tsim, thaum feem ntau lwm yam tsis yog xoom lossis tsis kawg. Cov kev ntsuas capacitance tseem ceeb tsis yog pom ntawm no vim tias cov khoom feem ntau yog nyob rau hauv tolerances. Txhua zaj duab xis CAPs muaj qhov kub thiab txias coefficient. Yog li ntawd, txhawm rau txiav txim siab seb lub tshuab hluav taws xob twg yog qhov zoo tshaj plaws rau lub suab, kev sim nrog cov cuab yeej kuaj tau ua tiav.
Cov diffusion coefficient yog qhov tseem ceeb hauv kev ntsuas qhov ua tau zoo ntawm cov khoom siv hluav taws xob electrolytic. Qhov no cuam tshuam rau sonic kev ua tau zoo ntawm signaling CAPs tsis zoo ib yam thiab tej zaum yuav tsawg heev. Tus lej sawv cev rau qhov poob hauv thiab tuaj yeem hloov mus rau qhov kev ua haujlwm zoo (ESR) yog xav tau.
ESR tsis yog tus nqi tas li, tab sis nyhav qis hauv cov khoom siv hluav taws xob zoo uas nws tsis muaj txiaj ntsig ntau rau kev ua haujlwm hauv Circuit Court. Yog tias high-Q resonant circuits tau tsim, ces nws yuav yog ib zaj dab neeg sib txawv kiag li. Txawm li cas los xij, qhov cuam tshuam qis qis yog qhov pom ntawm cov dielectrics zoo, uas tuaj yeem ua qhov pom zoo hauv kev tshawb fawb ntxiv.
Dielectric absorption tej zaum yuav txhawj xeeb dua. Qhov no yog ib qho teeb meem loj nrog cov analog computers thaum ntxov. Kev nqus dielectric siab tuaj yeem zam tau, yog li mica audio capacitors tuaj yeem muab RIAA tes hauj lwm nrog lub suab zoo heev.
DC to ntsuas ntsuas yuav tsum tsis txhob cuam tshuam dab tsi, vim tias qhov tsis kam ntawm cov teeb liab capacitor yuav tsum siab heev. Nrog cov ntaub ntawv dielectric siab dua, yuav tsum muaj thaj tsam tsawg dua thiab cov dej xau yog qhov tsis txaus ntseeg.
Rau cov ntaub ntawv nrog qis dielectric tas li xws li Teflon, txawm tias nws qhov kev tiv thaiv siab, nws yuav tsim nyog rauthaj tsam loj. Tom qab ntawd qhov xau tuaj yeem tshwm sim los ntawm kev sib kis me ntsis lossis impurities. DC leakage tej zaum yog kev tswj kom zoo, tab sis nws tsis muaj dab tsi ua rau lub suab zoo.
Tsis xav tau cov kab mob parasitic
Transistors, kev sib xyaw ua ke thiab lwm yam khoom siv muaj txiaj ntsig muaj txiaj ntsig zoo rau lub suab zoo. Lawv siv lub zog los ntawm qhov chaw tam sim no los hloov cov yam ntxwv ntawm lub teeb liab. Tsis zoo li cov khoom siv nquag, cov khoom siv zoo tshaj plaws tsis siv lub zog thiab yuav tsum tsis txhob hloov cov cim.
Hauv cov hluav taws xob hluav taws xob, cov khoom siv hluav taws xob, cov khoom siv hluav taws xob thiab cov inductors ua tau zoo li cov khoom siv hluav taws xob thiab siv hluav taws xob. Vim tias cov teebmeem spurious no, lawv tuaj yeem hloov kho cov suab nrov, thiab kev xaiv cov khoom yuav tsum tau ua kom zoo. Qhov kev thov ntau ntxiv rau cov khoom siv suab nrog lub suab zoo dua yog yuam CAP cov tuam txhab tsim khoom siv nrog kev ua tau zoo dua. Yog li ntawd, niaj hnub capacitors siv rau hauv daim ntawv thov suab muaj kev ua tau zoo dua thiab lub suab zoo dua.
Spurious CAP teebmeem nyob rau hauv lub acoustic Circuit Court muaj qhov sib npaug series tsis kam (ESR), sib npaug series inductance (ESL), series voltage qhov chaw vim Seebeck nyhuv, thiab dielectric absorption (DA).
Kev laus, kev hloov pauv hauv kev ua haujlwm thiab cov yam ntxwv tshwj xeeb ua rau cov kab mob tsis zoo no nyuaj dua. Txhua tus kab mobtivthaiv cuam tshuam rau kev ua haujlwm ntawm cov hluav taws xob hluav taws xob hauv ntau txoj kev. Pib nrog, cov nyhuv tiv thaiv ua rau DC to. Nyob rau hauv amplifiers thiab lwm yam circuits uas muaj cov active Cheebtsam, qhov to yuav ua rau ib tug tseem ceeb kev hloov nyob rau hauv lub bias voltage, uas yuav cuam tshuam rau ntau yam tsis, nrog rau qhov zoo tshaj plaws (Q).
Lub peev xwm ntawm lub capacitor los daws cov ripple thiab dhau cov teeb liab zaus yog nyob ntawm ESR tivthaiv. Ib qho hluav taws xob me me yog tsim los ntawm qhov chaw uas ob qhov sib txawv ntawm cov hlau sib txuas vim muaj qhov tshwm sim hu ua Seebeck effect. Cov roj teeb me me vim cov kab mob parasitic thermocouples tuaj yeem cuam tshuam rau kev ua haujlwm ntawm lub voj voog. Qee cov ntaub ntawv dielectric yog piezoelectric thiab lub suab nrov uas lawv ntxiv rau lub capacitor yog vim lub roj teeb me me hauv cov khoom siv. Tsis tas li ntawd, electrolytic CAPs muaj cov kab mob parasitic uas tuaj yeem ua rau muaj kev hloov pauv hauv cov teeb liab tsis zoo lossis cov yam ntxwv.
Parameters cuam tshuam rau txoj kev teeb liab
Hauv cov hluav taws xob hluav taws xob, cov khoom siv tsis zoo yog siv los txiav txim siab nce, tsim DC thaiv, txo hwj chim lub suab nrov, thiab muab kev tsis ncaj ncees. Cov khoom pheej yig nrog qhov me me yog feem ntau siv hauv lub tshuab ua suab nrov.
Qhov kev ua tau zoo ntawm cov polypropylene suab capacitors yog qhov sib txawv ntawm cov khoom zoo tagnrho raws li ESR, ESL, dielectric absorption,Kev xau tam sim no, piezoelectric zog, kub coefficient, kam rau ua thiab voltage coefficient. Thaum nws yog ib qho tseem ceeb uas yuav tau xav txog cov kev txwv no thaum tsim CAP rau kev siv hauv lub suab teeb liab txoj kev, ob qho uas muaj kev cuam tshuam loj tshaj plaws ntawm txoj kev teeb liab raug xa mus rau qhov voltage thiab inverse piezoelectric effect.
Ob lub capacitor thiab resistors pom qhov hloov pauv ntawm lub cev yam ntxwv raws li qhov hloov pauv hloov pauv. Qhov tshwm sim no feem ntau hu ua qhov kev ntxhov siab, thiab nws txawv nyob ntawm qhov chemistry, tsim, thiab hom CAP.
Cov nyhuv rov qab piezo cuam tshuam rau qhov ntsuas hluav taws xob ntawm cov khoom siv hluav taws xob rau lub suab nrov. Hauv lub suab amplifiers, qhov kev hloov pauv ntawm cov nqi hluav taws xob ntawm cov khoom siv no ua rau muaj kev hloov pauv hauv qhov nce nyob ntawm cov teeb liab. Cov nyhuv non-linear no ua rau lub suab distortion. Cov nyhuv piezoelectric rov qab ua rau lub suab nrov nrov ntawm cov zaus qis thiab yog qhov tseem ceeb ntawm qhov hluav taws xob hauv chav II ceramic CAPs.
Qhov hluav taws xob siv rau CAP cuam tshuam rau nws txoj haujlwm. Nyob rau hauv cov ntaub ntawv ntawm chav kawm II ceramic CAPs, lub capacitance ntawm lub Cheebtsam txo qis raws li ib tug nce DC voltage yog siv. Yog hais tias lub siab AC voltage yog siv rau nws, lub capacitance ntawm cov khoom yuav txo nyob rau hauv tib txoj kev. Txawm li cas los xij, thaum siv AC voltage tsawg, lub peev xwm ntawm cov khoom feem ntau nce ntxiv. Cov kev hloov pauv ntawm lub peev xwm no tuaj yeem cuam tshuam rau qhov zooaudio signals.
THD tag nrho kev sib haum xeeb distortion
LubTHD ntawm lub suab capacitors nyob ntawm cov khoom siv dielectric ntawm cov khoom. Qee tus ntawm lawv tuaj yeem muab qhov ua tau zoo THD, thaum lwm tus tuaj yeem txo qis nws. Polyester capacitors thiab txhuas electrolytic capacitors yog cov CAPs uas muab qhov qis tshaj THD. Nyob rau hauv cov ntaub ntawv ntawm chav kawm II dielectric cov ntaub ntawv, X7R muaj qhov zoo tshaj plaws THD kev ua tau zoo.
CAPs siv rau hauv cov khoom siv suab yog feem ntau cais raws li daim ntawv thov uas lawv tau siv. Peb daim ntawv thov: txoj kev teeb liab, kev ua haujlwm ua haujlwm thiab kev siv hluav taws xob txhawb nqa. Xyuas kom meej tias qhov zoo tshaj plaws suab MKT capacitor siv nyob rau hauv peb qhov chaw no pab txhim kho lub suab nrov thiab txo suab distortion. Polypropylene muaj qhov cuam tshuam tsawg thiab tsim nyog rau tag nrho peb thaj chaw. Thaum tag nrho cov CAPs siv nyob rau hauv lub kaw lus suab cuam tshuam rau lub suab zoo, cov khoom hauv txoj kev teeb liab muaj qhov cuam tshuam loj tshaj plaws.
Siv cov qib suab zoo qib capacitors tuaj yeem txo qhov degradation ntawm suab zoo heev. Vim lawv cov linearity zoo heev, zaj duab xis capacitors feem ntau yog siv rau hauv txoj kev suab. Cov tsis-polar audio capacitor no zoo tagnrho rau cov ntawv thov suab zoo. Dielectrics feem ntau siv hauv zaj duab xis capacitor tsim nrog lub suab zoo rauKev siv cov teeb liab muaj xws li polyester, polypropylene, polystyrene, thiab polyphenylene sulfide.
CAP siv rau hauv preamplifiers, digital-rau-analog converters, analog-rau-digital converters, thiab cov ntawv zoo sib xws tau muab faib ua cov khoom siv siv tau. Txawm hais tias cov tsis yog-polarized audio capacitors tsis nyob hauv txoj kev teeb liab, lawv tuaj yeem ua rau qhov zoo ntawm lub teeb liab zoo.
Capacitors, uas yog siv los tswj qhov hluav taws xob hauv cov khoom siv suab, muaj qhov cuam tshuam tsawg heev ntawm lub teeb liab. Txawm li cas los xij, yuav tsum tau saib xyuas thaum xaiv CAPs uas tswj qhov hluav taws xob rau cov khoom siv high-end. Siv cov khoom ua kom zoo rau cov ntawv thov suab pab txhim kho kev ua haujlwm ntawm lub suab hluav taws xob.
Polystyrene phaj dielectric thaiv
Polystyrene capacitors yog tsim los ntawm winding ib lamellar-dielectric block, zoo ib yam li ib tug electrolytic ib, los yog los ntawm nteg nyob rau hauv successive txheej, xws li ib phau ntawv (folded film-foil). Lawv tsuas yog siv los ua dielectrics hauv ntau yam yas xws li polypropylene (MKP), polyester / mylar (MKT), polystyrene, polycarbonate (MKC) lossis Teflon. High purity aluminium yog siv rau daim hlau.
Nyob ntawm hom dielectric siv, capacitors yog tsim nyob rau hauv ntau qhov sib txawv thiab muaj peev xwm nrog kev khiav hauj lwm voltage. Siab dielectricLub zog ntawm polyester ua rau nws muaj peev xwm ua tau qhov zoo tshaj plaws electrolytic capacitors rau lub suab nyob rau hauv me me qhov ntau thiab tsawg thiab tus nqi qis rau kev siv txhua hnub uas tsis tas yuav tsum muaj qhov tshwj xeeb zoo. Capacitances muaj los ntawm 1,000 pF txog 4.7 microfarads ntawm kev khiav hauj lwm voltages txog 1,000 V.
Qhov dielectric poob yam ntawm polyester yog qhov siab. Rau lub suab, polypropylene lossis polystyrene tuaj yeem txo qhov tsis zoo ntawm dielectric, tab sis nws yuav tsum tau sau tseg ntawm no tias lawv kim dua. Polystyrene yog siv nyob rau hauv lim / crossovers. Ib qho tsis zoo ntawm polystyrene capacitor yog qhov qis melting point ntawm dielectric. Qhov no yog vim li cas polypropylene suab capacitors feem ntau txawv ntawm ib leeg, vim tias cov dielectric tiv thaiv los ntawm kev sib cais cov hlau lead ntawm lub cev capacitor.
High Energy Density FIM Technology
High zog zaj duab xis CAPs muaj peb pawg ntawm hom no: TRAFIM (tus qauv thiab tshwj xeeb), FILFIM thiab PPX. FIM thev naus laus zis yog raws li lub tswv yim ntawm kev tswj tus kheej kho cov khoom ntawm segmented aluminium metallization films.
Lub peev xwm muab faib ua ntau lab lub hauv paus ntsiab lus, ua ke thiab tiv thaiv los ntawm fuses. Tsis muaj zog dielectric cov ntsiab lus yog rwb thaiv tsev, thiab ua ntej xuas nrig ntaus lub fuses, cov khoom puas raug cais tawm, uas lub capacitor tseem ua hauj lwm ib txwm tsis muaj luv luv Circuit Court lossis tawg, raws li tej zaum yuav muaj electrolytic.capacitors rau suab.
Raws li cov xwm txheej zoo, lub neej expectancy rau hom CAP no yuav tsum tsis txhob cia siab tias yuav dhau 200,000 teev thiab MTBF 10,000,000 teev. Ua hauj lwm zoo li lub roj teeb, cov capacitors no haus ib qho me me ntawm lub peev xwm vim qhov kev hloov zuj zus ntawm cov hlwb ib leeg dhau lub neej ntawm cov khoom.
Lub TRAFIM thiab FILFIM series muab kev lim dej txuas ntxiv rau cov hluav taws xob siab / lub zog (txog 1kV). Peev xwm txawv:
- 610uF rau 15625uF rau tus qauv TRAFIM;
- 145uF rau 15460uF rau kev tshwj xeeb TRAFIM;
- 8.2uF rau 475uF rau FILM.
DC voltage ntau yog:
- 1.4KV txog 4.2KV rau tus qauv TRAFIM;
- 1.3kV txog 5.3kV rau tus kheej TRAFIM;
- thiab los ntawm 5.9 kV txog 31.7 kV rau FILFIM.
Lub PPX series capacitors muab ntau yam kev daws teeb meem hauv network rau GTO kev tawm tsam nrog rau kev thaiv CAPs, muab cov peev txheej ntawm 0.19uF txog 6.4uF. Qhov voltage ntau rau PPX yog li ntawm 1600V txog 7500V nrog rau tus kheej inductance tsawg heev.
zaj duab xis capacitors rau lub suab feem ntau muaj qhov ua tau zoo tshaj plaws, tab sis qhov no feem ntau cuam tshuam los ntawm lawv qhov loj me thiab ntev hlau ntev. Nws tuaj yeem pom tau tias Panasonic lub me me radial capacitor muaj ntau dua tus kheej-resonance (9.7 MHz) dua li cov neeg tuaj saib (4.5 MHz). Qhov no tsis yog vim qhov ntsia Teflon cap, tab sis vim nws yog ob peb nti ntev.thiab tsis tuaj yeem txuas nrog lub cev. Yog tias tus tsim qauv xav tau kev ua haujlwm siab kom muaj kev ruaj ntseg hauv high-bandwidth semiconductors, txo cov hlau loj thiab ntev mus rau qhov tsawg kawg nkaus.
Kev ua haujlwm ntawm lub suab hluav taws xob yog nyob ntawm cov khoom siv passive xws li capacitors thiab resistors. Qhov tseeb CAPs muaj qhov tsis xav tau spurious Cheebtsam uas tuaj yeem cuam tshuam cov yam ntxwv ntawm lub suab teeb liab. Cov capacitors siv nyob rau hauv lub teeb liab txoj kev loj txiav txim siab qhov zoo ntawm lub suab teeb liab. Yog li ntawd, yuav tsum tau ceev faj xaiv CAP kom txo cov teeb liab degradation.
Suab qib capacitors tau ua kom zoo kom tau raws li qhov xav tau ntawm cov tshuab suab zoo niaj hnub no. Yas zaj duab xis capacitors rau suab yog siv nyob rau hauv lub zoo suab systems thiab muaj ntau yam kev siv.
