Kev ntsuam xyuas EMC kev ua tau zoo ntawm cov kev sib txuas lus digital cais cov qauv suav nrog cov txheej txheem tshawb xyuas kev sib txuas nrog CMTI tsis, EMC cov qauv ntawv pov thawj, thiab cov txiaj ntsig kev tiv thaiv kab mob. Qhov peb yam no qhia txog qhov kev ntseeg siab ntawm cov khoom siv hluav taws xob hauv cov khoom siv hluav taws xob, cov txheej txheem, thiab cov ntawv thov, raws li.
1. CMTI: Tus Txheej Txheem Tseem Ceeb rau Kev Ntsuas Cov Cuab Yeej-Txoj Kev Tiv Thaiv Kev Tiv Thaiv Kev Tiv Thaiv Kab Mob
Feem ntau-Mode Transient Rejection Ratio (CMTI) yog ib qho tseem ceeb rau kev ntsuas lub teeb liab kev ncaj ncees ntawm cov kev rho tawm digital thaum muaj peev xwm hloov pauv sai sai. Nws ntsuas hauv kV/μs.
High CMTI values (>100 kV/μs): Qhia tias lub cuab yeej tuaj yeem tiv thaiv tau sai heev -mode voltage surges nyob rau hauv cov xwm txheej xws li lub cev muaj zog tsav thiab zaus converters.
Rongpai's E / M series khoom ua tiav CMTI ntawm 120 kV / μs, thaum U series cov khoom ncav cuag siab li 250 kV / μs, muaj peev xwm tiv taus qhov hluav taws xob 2500V hauv 10ns.
Huapu Microelectronics CMT812X series CMTI> ± 200 kV / μs, haum rau kev sib txuas lus hauv paus chaw nres tsheb thiab photovoltaic inverters.
Test Method: Siv qhov nrawm nrawm- hom kev hloov pauv hluav taws xob hla lub tshuab cais tawm thiab saib seb lub teeb liab tso zis puas cuam tshuam. Txheeb xyuas qhov tseeb cuam tshuam tiv thaiv kab mob siv lub oscilloscope waveform.
Kev Pom Zoo Kev Xaiv: Rau kev lag luam thiab kev siv hluav taws xob tshiab, xaiv cov modules nrog CMTI Ntau dua lossis sib npaug ntawm 150 kV / μs kom tsis muaj qhov yuam kev me me hauv kev cuam tshuam muaj zog.
2. EMC Certification: Lub hauv paus kev cai lij choj rau kev txheeb xyuas qhov system- qib ua raws. EMC daim ntawv pov thawj qhia txog seb cov khoom puas ua tau raws li cov qauv thoob ntiaj teb lossis hauv cheeb tsam electromagnetic compatibility thiab yog ib qho kev nkag mus rau kev lag luam.
EU CE Certification (EMC Cov Lus Qhia 2014/30/EU): Yuav tsum muaj cov cuab yeej ua tau raws li EN 61000 series qauv, suav nrog cov kev ntsuam xyuas hluav taws xob hluav taws xob, hluav taws xob hluav taws xob, thiab hluav taws xob ceev ceev.
Teb Chaws Asmeskas FCC Tshooj 15: Kev txwv tsis pub muaj hluav taws xob thiab ua emissions los ntawm cov khoom siv digital los tiv thaiv kev cuam tshuam nrog kev sib txuas lus hauv xov tooj cua.
Automotive-qib ntawv pov thawj: Automotive electronics yuav tsum xeem dhau AEC-Q100 kev ntseeg siab thiab ua tau raws li CISPR 25 automotive EMI tus qauv.
Cov ntsiab lus tseem ceeb: Txheeb xyuas seb cov khoom puas tau dhau daim ntawv pov thawj kev nyab xeeb xws li UL, CSA, thiab CQC kom ntseeg tau tias nws ua raws li kev lag luam, kev kho mob, lossis kev tsav tsheb.
3. Kev Ntsuam Xyuas Kev Tiv Thaiv: Kev Tshawb Fawb Txog Kev Ua Haujlwm Raws li Simulated Real-Cov Txheej Txheem Ntiaj Teb. Simulate tiag tiag electromagnetic ib puag ncig los ntawm cov qauv xeem cov khoom kom nkag siab txog kev ntsuas lub cev tiv thaiv kab mob.
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Cov khoom kuaj |
Test Standards |
Cov ntsiab lus ntsuas |
Pass/Fail Performance |
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Electrostatic paug (ESD) |
IEC 61000-4-2: Tus Qauv Zauv |
Simulates them kev sib cuag nrog tib neeg lub cev lossis khoom; ib txwm ua haujlwm tom qab |
± 8kV cua tso tawm |
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Hluav taws xob ceev Transient / tawg (EFT) |
IEC 61000-4-4: Tus Qauv Zauv |
Simulates relay / contactor cuam tshuam kev ua haujlwm; uninterrupted kev sib txuas lus nyob rau hauv |
± 2kV tawg cuam tshuam |
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Surge |
IEC 61000-4-5 |
Simulates xob laim ntaus los yog hloov mus ib ntus; cia li rov qab los |
± 1kV kab - mus rau - av surge |
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Kev tiv thaiv hluav taws xob (RS) |
IEC 61000-4-3: 3 |
Simulates electromagnetic teb cuam tshuam hauv qhov chaw; tsis muaj kev degradation |
ntawm 10V / m teb zog |
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Fais fab zaus Sib Nqus Field Immunity |
IEC 61000-4-8: Kev qhia |
Simulates lub zog ntawm transformer / lub cev muaj zog magnetic teb |
ruaj khov ua haujlwm ntawm 100A / m teb lub zog |
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Pulse Magnetic Field Immunity |
IEC 61000-4-9: Tus Qauv Zauv |
Simulated siab -tam sim no hloov pauv hloov pauv hauv qab |
1000A / m pulsed magnetic teb tsis pom qhov ua txhaum. |
Cov lus qhia kho mob:
Cov teeb meem ESD → Ua kom muaj zog tiv thaiv thiab hauv av;
Cov teeb meem EFT → Ntxiv lub nplhaib sib nqus rau kev sib cais ntawm lub zog;
Surge Issues → Nruab TVS lossis surge suppressor.
Tswv yim pom zoo: Ua ntej cov qauv uas tau dhau qhov kev xeem EMS kom txo tau ntawm - qhov kev pheej hmoo ntawm kev debugging.
Kev Ntsuas Kev Ntsuas Zoo: Peb-Kev Txiav Txim Txuas Txuas
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Dimension |
Kev ntsuas tsom |
Pom zoo xyaum |
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CMTI Parameters |
Device Intrinsic Immunity |
Nrog rau daim ntawv teev cov ntaub ntawv, tsom mus rau qhov ntsuas waveforms es tsis yog tus nqi nominal xwb. |
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Daim ntawv pov thawj EMC |
Kev Ua Lag Luam Kev Lag Luam thiab Kev Ua Raws Cai |
Txheeb xyuas cov ntawv pov thawj xav tau rau lub hom phiaj kev lag luam (xws li CE, FCC). |
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Kev kuaj kev tiv thaiv kab mob |
Kev siv tswv yim ruaj ntseg |
Xav kom tus neeg muag khoom muab cov ntaub ntawv xeem, thiab xa mus rau thib peb - rov sim dua yog tias tsim nyog. |
Qhov tseeb EMC kev ntsuas kev ua tau zoo tsis yog saib ntawm ib qho kev ntsuas, tab sis ua ke "lub zog nyuaj" ntawm CMTI, "passport" ntawm daim ntawv pov thawj, thiab "tiag tiag-kev ua haujlwm hauv ntiaj teb" ntawm kev sim los tsim ib qho kev kaw -loop verification. Tsuas yog nyob rau hauv txoj kev no peb tuaj yeem ua kom ntseeg tau ntev - lub sijhawm ua haujlwm ruaj khov ntawm cov kev sib txuas lus digital cais tawm hauv kev lag luam.
