Piav txog peb yam ntawm kev hloov hluav taws xob hloov hluav taws xob txoj kev cuam tshuam electromagnetic cuam tshuam.
1. Tshem tawm ntau yam kev cuam tshuam ntawm electromagnetic cuam tshuam hauv kev hloov khoom siv hluav taws xob
Txhawm rau daws qhov tsis sib haum xeeb ntawm cov tswv yim tam sim no waveform 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 hluav taws xob waveform, thiab kho qhov tam sim no waveform kom nws ze rau sine yoj. Yog li ntawd, cov ntsiab lus sib haum xeeb tam sim no raug txo, cov yam ntxwv ntawm tus choj rectifier capacitor lim Circuit Court tau txhim kho, thiab lub zog ntawm kev hloov hluav taws xob hloov tau zoo dua. Cov txheej txheem sib txawv tuaj yeem cuam tshuam electromagnetic cuam tshuam los ntawm cov ces kaum sib txawv, thiab Minrong Electric tau nqis peev ntau ntawm cov thev naus laus zis thiab kev siv zog hauv qhov no. Minrong switching fais fab mov tau ua tiav cov txiaj ntsig zoo hauv kev cuam tshuam electromagnetic cuam tshuam. Kev koom tes ntawm Minrong Electric tau tsim txoj haujlwm ntawm Minrong hloov hluav taws xob 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 ua kom muaj kev cuam tshuam tam sim no thiab qhov siab tshaj plaws thaum lub sijhawm hloov pauv, uas yog qhov ua rau muaj kev cuam tshuam ntawm electromagnetic cuam tshuam thiab hloov pauv. Siv cov cuab yeej hloov hluav taws xob los ua kom lub raj xa hluav taws xob hloov ntawm xoom voltage 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 kawg ntawm ob qho kawg ntawm lub raj hloov los yog lub hauv paus kauj ntawm lub tshuab hluav taws xob ntau zaus kuj tuaj yeem txhim kho cov yam ntxwv ntawm electromagnetic compatibility.
Qhov teeb meem rov qab los ntawm qhov tso zis rectifier diode tuaj yeem raug tshem tawm los ntawm cov kab hluav taws xob saturated inductor. Cov tub ntxhais ntawm cov saturated inductor yog ua los ntawm cov khoom sib nqus nrog lub voj voog BH nkhaus. Zoo li cov khoom siv hauv cov khoom siv sib nqus, cov tub ntxhais no ua rau cov inductor muaj qhov sib nqus permeability siab. Cov tub ntxhais hlau nplaum muaj ze li ntawm cov kab ntsug ntsug ntawm BH nkhaus, thiab nws yooj yim nkag mus rau hauv lub xeev saturated. 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, qhov saturated inductance yog nyob rau hauv inductive yam ntxwv lub xeev, uas inhibits qhov rov qab rov qab qhov kev hloov loj ntawm tam sim no suppresses nws sab nraud cuam tshuam.
2. Txiav tawm txoj kev sib kis ntawm electromagnetic cuam tshuam - tsim cov hom sib txawv thiab txawv hom fais fab kab lim
Lub tshuab lim fais fab tuaj yeem 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 cov txhais tau tias txhawm rau cuam tshuam electromagnetic cuam tshuam rau qee yam tshwj xeeb. Cov neeg siv kev paub dhau los yog ib qho ntawm cov lus qhia uas Minrong Electric hais rau. Txoj kev loj hlob ntawm Minrong Electric yog sib cais los ntawm Minrong Electric txoj kev ua raws li cov kev taw qhia, uas tseem ua rau Minrong hloov hluav taws xob maj mam ua tiav qhov zoo ntawm ingenuity.
Hom hom inductor muaj ob windings nrog opposite winding cov lus qhia thiab tib tus naj npawb ntawm tig rau tib lub nplhaib sib nqus. Feem ntau, ib tug toroidal core yog siv, uas muaj me me sib nqus flux to thiab high efficiency, tab sis nws yog ib qho nyuaj rau cua. Thaum lub hwj chim zaus tam sim no ntawm lub nroog network ntws los ntawm ob lub windings, ib qho mus rau hauv thiab lwm qhov tawm mus, thiab cov hluav taws xob hluav taws xob tsim tawm tsuas yog tshem tawm, kom cov hom inductance 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 cov suab nrov nrov nrov tam sim no dhau los ntawm qhov sib txawv-hom inductor hauv lub nroog network, cov kev taw qhia ntawm cov suab nrov nrov tam sim no yog tib yam. Thaum nws ntws los ntawm ob lub windings, lub generated magnetic teb yog superimposed nyob rau tib theem, yog li ntawd cov hom-hom inductance 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 magnetic teb. Txhawm rau tiv thaiv qhov xau ntawm lub tshuab hloov pauv thiab ua kom qhov kev sib txuas ua ke zoo, lub nplhaib sib nqus kaw tuaj yeem siv los ua ib daim thaiv hlau nplaum. Piv txwv li, cov dej ntws tawm ntawm lub lauj kaub core yog me dua li ntawm e-core. 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 lub zog thiab cov teeb liab kab. Tab sis nws yuav tsum tau muab sau tseg tias lub teeb liab zaus yuav tsum tsis txhob cuam tshuam los ntawm EMC Cheebtsam, uas yog, lub teeb liab zaus yuav tsum nyob rau hauv lub lim. Lub plhaub ntawm tag nrho cov khoom siv hluav taws xob hloov pauv kuj yuav tsum muaj cov khoom tiv thaiv zoo, thiab cov khoom sib txuas yuav tsum ua kom tau raws li qhov yuav tsum tau muaj kev tiv thaiv los ntawm EMC. Cov kev ntsuas saum toj no ua kom ntseeg tau tias lub zog hloov hluav taws xob tsis cuam tshuam los ntawm ib puag ncig hluav taws xob sab nraud thiab yuav tsis cuam tshuam nrog cov khoom siv hluav taws xob sab nraud.
