Sib tham txog kev cuam tshuam electromagnetic cuam tshuam ntawm kev hloov cov khoom siv hluav taws xob los ntawm peb yam
1. Tshem tawm ntau yam kev cuam tshuam ntawm electromagnetic cuam tshuam hauv kev hloov khoom siv hluav taws xob
Txhawm rau daws cov teeb meem tam sim no waveform distortion thiab txo cov ntsiab lus sib haum xeeb tam sim no, lub zog hloov hluav taws xob yuav tsum tau txais kev hloov kho fais fab (PFC) thev naus laus zis. PFC thev naus laus zis ua rau tam sim no waveform ua raws li qhov voltage waveform thiab kho qhov tam sim no waveform kom nws ze rau sine yoj. Qhov no txo cov ntsiab lus sib haum xeeb tam sim no, txhim kho cov yam ntxwv ntawm tus choj rectifier capacitor lim circuit, thiab txhim kho lub zog ntawm kev hloov hluav taws xob. Cov txheej txheem sib txawv tuaj yeem cuam tshuam electromagnetic cuam tshuam los ntawm cov ces kaum sib txawv. Minrong Electric tau ua ntau yam kev nqis peev thiab kev siv zog rau lub hom phiaj no. Minrong hloov fais fab mov tau ua tiav cov txiaj ntsig zoo hauv kev cuam tshuam electromagnetic cuam tshuam. Minrong Electric txoj kev siv zog tau ua rau Minrong hloov hluav taws xob muaj zog zuj zus hauv kev lag luam.
Mos switching thev naus laus zis yog ib qho tseem ceeb txhais tau tias txo qhov poob ntawm kev hloov khoom siv thiab txhim kho cov khoom siv hluav taws xob sib txuas ntawm cov khoom siv hloov pauv. Cov khoom siv hloov pauv yuav tsim cov hluav taws xob hluav taws xob thiab cov hluav taws xob siab tshaj plaws thaum lub sij hawm hloov cov txheej txheem, uas yog lub ntsiab ua rau electromagnetic cuam tshuam thiab hloov pauv poob. Kev siv cov tshuab hluav taws xob hloov hluav taws xob los ua kom cov raj xa hluav taws xob ua haujlwm hloov pauv ntawm xoom hluav taws xob thiab xoom tam sim no tuaj yeem cuam tshuam electromagnetic cuam tshuam. Siv lub tshuab hluav taws xob snubber los nqus cov hluav taws xob siab tshaj plaws thoob plaws lub raj xa hluav taws xob lossis thawj kauj ntawm lub tshuab hluav taws xob muaj peev xwm kuj tuaj yeem txhim kho cov yam ntxwv ntawm electromagnetic compatibility.
Qhov teeb meem rov qab los ntawm cov zis rectifier diode tuaj yeem raug tshem tawm los ntawm kev ntxiv cov inductor saturable hauv koob. Cov tub ntxhais ntawm cov saturated inductor yog ua los ntawm cov khoom sib nqus nrog lub voj voog BH nkhaus. Zoo li cov ntaub ntawv siv nyob rau hauv magnetic amplifiers, lub inductor ua los ntawm cov tub ntxhais no muaj ib tug siab sib nqus permeability. Cov tub ntxhais hlau nplaum muaj ze li ntawm cov kab ncaj nraim ntawm BH nkhaus thiab tuaj yeem nkag mus rau lub xeev saturation tau yooj yim. Nyob rau hauv kev siv tswv yim, thaum lub tso zis rectifier diode yog qhib, lub saturated inductor ua hauj lwm nyob rau hauv lub inductive yam ntxwv lub xeev, uas yog sib npaug rau ib seem ntawm hlau; Thaum lub diode raug muab tua thiab thim rov qab tshwm sim, lub saturated inductor nyob rau hauv inductive yam ntxwv lub xeev, inhibiting rov qab. Qhov kev hloov loj hauv tam sim no suppresses nws cov kev cuam tshuam sab nraud.
2. Txiav tawm txoj kev sib kis ntawm electromagnetic cuam tshuam - tsim cov hom sib txawv thiab txawv hom fais fab kab lim
Cov kab hluav taws xob lim tawm cov kab hluav taws xob cuam tshuam. Ib qho tsim nyog thiab muaj txiaj ntsig hloov pauv hluav taws xob EMI lim yuav tsum muaj kev cuam tshuam muaj zog ntawm kev cuam tshuam ntawm hom sib txawv thiab hom kev cuam tshuam. Qhov tseeb, nws tsis txwv rau cov lim fais fab. Minrong Electric kuj tau tsim txoj hauv kev los tiv thaiv electromagnetic cuam tshuam ntawm qee yam tshwj xeeb. Cov neeg siv kev paub dhau los yog ib qho ntawm cov lus qhia Minrong Electric ua raws. Minrong Electric txoj kev txhim kho thev naus laus zis tsis tuaj yeem sib cais los ntawm Minrong Electric qhov kev pheej hmoo ntawm nws cov kev taw qhia, uas kuj tau ua rau Minrong hloov pauv cov khoom siv hluav taws xob kom maj mam ua tiav kev txawj ntse thiab zoo.
Ib hom hom inductor muaj ob lub windings ntawm tib lub nplhaib sib nqus nrog cov lus qhia sib txawv winding thiab tib tus lej. Feem ntau, annular cores yog siv, uas muaj cov hlau nplaum me me thiab kev ua haujlwm siab, tab sis nyuaj rau cua. Thaum lub hwj chim zaus tam sim no ntawm lub nroog network ntws los ntawm ob lub windings, nws nkag mus thiab tawm, thiab lub magnetic teb generated raws nraim tshem tawm. Nyob rau hauv txoj kev no, hom hom inductor yuav tsis cuam tshuam lub zog zaus tam sim no ntawm lub nroog network thiab tuaj yeem kis tau yam tsis muaj kev poob. Yog tias muaj ib hom suab nrov nrov tam sim no dhau los ntawm hom hom inductor hauv lub nroog network, cov kev taw qhia ntawm hom suab nrov tam sim no yuav zoo ib yam. Thaum nws ntws los ntawm ob lub windings, lub generated magnetic teb yog superimposed nyob rau tib theem, ua rau cov hom hom inductor qhia ib tug loj inductive reactance rau cov cuam tshuam tam sim no, uas plays lub luag hauj lwm nyob rau hauv suppressing hom kev cuam tshuam.
3. Siv cov ntaub thaiv npog los txo qhov rhiab heev ntawm cov khoom siv electromagnetic rhiab heev
Shielding yog ib txoj hauv kev zoo los txo cov suab nrov nrov. Cov ntaub ntawv uas muaj qhov zoo conductivity tuaj yeem siv los tiv thaiv hluav taws xob, thiab cov ntaub ntawv uas muaj qhov sib nqus permeability siab tuaj yeem siv los tiv thaiv cov hlau nplaum. Txhawm rau tiv thaiv kom tsis txhob muaj qhov sib nqus sib nqus ntawm lub tshuab hloov pauv thiab ua kom muaj kev sib txuas zoo, lub nplhaib sib nqus kaw tuaj yeem siv los ua daim thaiv hlau nplaum. Piv txwv li, cov dej ntws tawm ntawm lub lauj kaub cores tsawg dua li ntawm e-cores. Cov kab sib txuas thiab cov kab hluav taws xob ntawm cov khoom siv hluav taws xob hloov pauv yuav tsum siv cov khoom siv tiv thaiv kom tsis txhob muaj kev cuam tshuam sab nraud los ntawm kev sib txuas rau hauv Circuit Court. Los yog siv EMC cov khoom xws li cov hlaws sib nqus thiab cov nplhaib sib nqus los lim tawm cov kev cuam tshuam ntau zaus los ntawm cov khoom siv hluav taws xob thiab cov teeb liab. Txawm li cas los xij, nws yuav tsum tau muab sau tseg tias lub teeb liab zaus yuav tsum tsis txhob cuam tshuam los ntawm electromagnetic compatibility Cheebtsam, uas yog, lub teeb liab zaus yuav tsum nyob rau hauv qhov ntau ntawm cov lim. Lub plhaub ntawm tag nrho cov khoom siv hluav taws xob hloov pauv kuj yuav tsum muaj cov yam ntxwv tiv thaiv zoo, thiab cov khoom sib txuas yuav tsum ua tau raws li kev tiv thaiv kev tiv thaiv uas tau teev tseg los ntawm EMC. Cov kev ntsuas saum toj no ua kom ntseeg tau tias cov khoom siv hluav taws xob hloov pauv yuav tsis cuam tshuam los ntawm cov khoom siv hluav taws xob sab nraud thiab yuav tsis cuam tshuam nrog cov khoom siv hluav taws xob sab nraud.
