Dab tsi yog vim li cas rau cua sov ntawm lub hwj chim amplifier fais fab lim electrolytic capacitor thaum nws yog powered?
Thawj hom yog tias lub electrolytic capacitor nws tus kheej muaj cov xau, ua rau dielectric poob thiab ua rau kub nce.
Qhov thib ob yog qhov tsis txaus voltage tsis kam, uas ua rau dielectric poob thiab cua sov vim qhov tseem ceeb ntawm lub xeev ntawm electrolytic capacitor.
Hom thib peb kuj tsis tshua muaj, qhov zoo thiab tsis zoo electrodes ntawm electrolytic capacitor yog welded nyob rau hauv thim rov qab, ua rau ib tug ntse nce nyob rau hauv qhov kub thiab txias vim muaj ib tug ntse nce nyob rau hauv cov pa tam sim no thaum powered, kom txog rau thaum lub slurry tawg. Qhov tshwm sim no feem ntau yog tshwm sim hauv kev tsis saib xyuas lossis pib thaum lub sijhawm tsim hluav taws xob.
Muaj lwm qhov xwm txheej uas yuav tsum tau piav qhia, uas yog qhov poob ntawm dielectric tshwm sim los ntawm qhov loj ntawm lub zog siab ripple nyob rau hauv lub hwj chim lim Circuit Court rau electrolytic capacitor.
Vim lub fact tias qhov zoo thiab tsis zoo electrodes ntawm ib tug electrolytic capacitor yog ua los ntawm ob txheej txheej hlau oxide nyias zaj duab xis uas yog insulated los ntawm ib leeg, thiab cov electrolyte yog ntim ntawm qhov zoo thiab tsis zoo electrodes raws li qhov nruab nrab ua hauj lwm, cov txheej txheem muaj zog. txiav txim siab npaum li cas inductance poob lub electrolytic capacitor yuav muaj. High harmonic nplua nuj fais fab circuits, xws li DC tso zis Circuit Court ntawm ib tug switching fais fab mov, lub hwj huam mov Circuit Court ntawm lub computer motherboard CPU, thiab lwm yam, ua rau nws yooj yim heev rau electrolytic capacitors uas ua filtering hauj lwm nyob rau hauv cov cheeb tsam no kom sov thiab o. vim nruab nrab degradation tshwm sim los ntawm high-order harmonics.
Yav dhau los, lub hwj chim lim capacitors ntawm cov laus tiam computer motherboards thiab CPUs feem ntau ntsib o vim li no. Niaj hnub no, lawv feem ntau yog cov khoom siv hluav taws xob hauv lub xeev, thiab qhov o tsis tshua pom.
Nws yuav tsum xa mus rau lub lim dej capacitor ntawm lub zog amplifier. Nws ua kom sov thaum siv hluav taws xob thiab tuaj yeem nkag siab meej txog qhov xwm txheej sab hauv ntawm lub hwj chim amplifier. Nws yog kwv yees tias koj tau ua koj tus kheej lub hwj chim amplifier kuaj tshuab thaum muaj hluav taws xob. Nws yog tsis yooj yim sua kom koj paub tias cov khoom twg heats nyob rau hauv lub tiav lawm tshuab. Tus kheej, kuv xav tias muaj peb qhov xwm txheej,
1: Yog hais tias lub polarity ntawm lub filtering electrolytic capacitor yog thim rov qab, yuav muaj ib tug loj to tam sim no thaum powered, ua rau lub hwj chim noj ntawm ob peb kaum watts, thiab lub capacitor yuav inevitably sai sai cua sov.
2: Nws yog ib txwm muaj nyob rau hauv kev ua lag luam uas cov khoom siv hluav taws xob electrolytic capacitors muaj tus qauv tsis raug thiab tiv taus hluav taws xob. Yav dhau los, cov qauv cuav feem ntau tau yuav los ntawm kev xa ntawv. Qee lub capacitors tau haum nrog lub tes tsho yas siab tshaj plaws ntawm tus qauv qis qis, thiab cov txheej txheem sab nrauv raug rub kom pom cov ntawv qub, xws li 16v2200uf thiab 50v4700uf. Lawv tau muag ntawm tus nqi qis lossis nrhiav cov txiaj ntsig los ntawm kev nce tus nqi. Cov Txiv Hmab Txiv Ntoo zoo siv cov khoom siv hluav taws xob zoo li no rau ntawm lub zog hluav taws xob nrog qhov hluav taws xob ntau dua 20 volts, ua rau muaj zog tiv taus ntau dhau thiab nthuav dav ntxiv hauv cov xau tam sim no, ua rau lub tshuab hluav taws xob cua sov.
3: Qhov kev xaiv capacitor specification tsis raug. Piv txwv li, nyob rau hauv lub hwj chim amplifier fais fab mov nrog ib tug AC tso zis ntawm 2 0 volts los ntawm lub hwj chim transformer, lub capacitor xaiv muaj ib tug withstand voltage ntawm tsuas yog 25 volts. Nyob rau saum npoo, nws zoo nkaus li tias qhov hluav taws xob tiv taus ntawm 25 volts yog ntau dua li lub zog hluav taws xob ntawm 20 volts. Txawm li cas los xij, qhov lim DC voltage yog ze rau tus nqi siab tshaj ntawm 28 volts. Thaum cov kab hluav taws xob yog lub teeb, daim phiaj hluav taws xob nce mus txog 250 volts, thiab cov zis tuaj yeem ncav cuag ntau dua 32 volts, ua rau muaj qhov cuam tshuam loj thiab cua sov ntawm lub capacitor, (Lub npe nominal withstand voltage ntawm lub capacitor feem ntau yog qhov qis tshaj qhov voltage ntawm tag nrho cov khoom. , thiab feem ntau qhov tseeb tiv taus voltages siab tshaj qhov nominal withstand voltage, xws li tus nqi nominal ntawm 25V Qhov tseeb withstand voltage yuav ncav cuag nees nkaum yim, cuaj, los yog txawm peb caug volts, Txawm li cas los, rau kev nyab xeeb yog vim li cas, nws yuav siv tsis tau rau sab saum toj ntawm daim phiaj, thiab 20% npoo yuav tsum tau sab laug vim tias cov cua sov sab hauv yuav ua rau kom cov hluav taws xob hluav taws xob nce ntxiv, uas ua rau muaj qhov txo qis hauv cov hluav taws xob tiv thaiv yog tias ua tau, nws yog qhov zoo tshaj plaws los ntsuas qhov tseeb tiv thaiv hluav taws xob ntawm electrolytic capacitor Koj tus kheej, uas yog, cov xau tam sim no txwv tsis pub dhau 0.5mA ntawm qhov hluav taws xob tiv thaiv.)
