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Prof R T KennedyEMC & COMPLIANCE ENGINEERING 2 EET 422 EMC & COMPLIANCE ENGINEERING

Prof R T KennedyEMC & COMPLIANCE ENGINEERING 3 wkdateTOPICSMONTUES LAB WED L -2hr THUFRISATSUN 11 J-7 J vacation 28 J-14 JEMC intro- BANANA SKINS8910 RTK MAKE UP ! J-21 JEMC Concepts RTK1` EMC MCAD # 1INDRA HATTA +1 -1HOLIDAY 422 J- 28 JEMC Concepts RTK EMC DEMO #1 # 2SCHAFFNERProf HOLTZ J- 4 FEMC Directive, Standards Routes to Compliance RTK 1234 EMC LAB # 1INDRA HATTA F- 11 Fcoupling & decoupling567 RTK 8910 Converters: dips, drops, ringing, notching, overlap 11 EMC MCAD #2INDRA HATTA F- 18 Fconducted emissions CM DM modes RTK MAKE UP EMC LAB # 2INDRA HATTA make up after CHNYCHNY 819 F- 25 FSEMESTER BREAK19 CHNY

Prof R T KennedyEMC & COMPLIANCE ENGINEERING 4 wkdateTOPICSMONTUES LAB WED L -2hr THUFRISATSUN 819 F- 25 FSEMESTER BREAK19 CHNY F- 4 Mgrounding RTK1234 EMC LAB # 3INDRA HATTA 105 M-11 Mactive & passive components567 RTK LITEMC LAB PRACTICAL TESTINDRA HATTA 1112 M-18 Msignal spectra RTK EMC LAB #4INDRA HATTATEST REVISION 1219 M-25 MSMPS RTK TESTEMC MCAD #3INDRA HATTATEST REVISIONTEST 1326 M-1 ADRIVES RTK HOLIDAY1 EMC LAB # 5INDRA HATTA 142 A-8 AANALOGUE CIRCUITS234 RTK 5678 EMC LAB # 6INDRA HATTA 159 A- 15 AEMC related directives91011 RTK EMC LAB THEORY TEST 1616 A- 22 Areading week - revision

Prof R T KennedyEMC & COMPLIANCE ENGINEERING 5 TEXTBOOK REFERENCES M I Montrose: E M Nakauchi IEEE 2004 “Testing for EMC Compliance: Approaches and Techniques” T Williams 3rd Ed Newnes 2001/3 “EMC for Product Designers” T Williams K Armstrong Newnes 2000 “EMC for Systems and Installations” D Lohbeck Newnes 1998 “CE Marking” NOTE: THESE TEXTBOOKS ARE RECOMMENDED READING ONLY

Prof R T KennedyEMC & COMPLIANCE ENGINEERING 6 SAMPLE WEB SITES

Prof R T KennedyEMC & COMPLIANCE ENGINEERING 7 COURSEWORK MCADEMC LABEMC LAB TESTSLIT EXAMTESTassignmentsPERFORMANCEPRACTICALTHEORYSEARCH 50%10% 5% submit hard copy at end of lab assessed at end of lab

Prof R T KennedyEMC & COMPLIANCE ENGINEERING 8 prepare a report based literature search & measurements demos

Prof R T KennedyEMC & COMPLIANCE ENGINEERING 9 “The need for EMC regulations and Test Methods for Conducted and Radiated Emissions”

Prof R T KennedyEMC & COMPLIANCE ENGINEERING 10 TESEQ (SCHAFFNER) EMC DEMOS wkdatetimeTITLEvenue 4Mon 22J 9.00  1pm EMC PLV TRAININGPE LAB 4Mon 22J INTRODUCTORY EMC TALK?all students DEMO: conducted emissions testingPE LABGP DEMO: conducted emissions testingPE LABGP 2 4Tues 23J DEMO: conducted emissions testingPE LABGP DEMO: radiated emissions testingPE LABGP DEMO: radiated emissions testingPE LABGP DEMO: radiated emissions testingPE LABGP  Q& A?all students

Prof R T KennedyEMC & COMPLIANCE ENGINEERING 11 wkdateexpt. #TITLEsubmit resultswkg groups 11 J-7 J 28 J-14 J 315 J-21 Jemc mcad #1POWER SUPPLY LINE CURRENT HARMONICSweek # 3INDIVIDUAL 422 J- 28 Jemc demo #1 emc demo #2 conducted emissions testing radiated emissions testing GROUPS X3 529 J- 4 Femc lab #1POWER SUPPLY INPUT STAGEweek # 2GROUP X2 65 F- 11 Femc mcad #2CONVERTER LINE CURRENT HARMONICSweek # 5INDIVIDUAL 712 F- 18 Femc lab #2AC-dc ac-ac converter LINE CURRENT HARMONICS week # 6INDIVIDUAL 819 F- 25 FSEMESTER BREAKGROUP X2 926 F- 4 Memc lab #3AC-dc converter DIPS RINGING NOTCHING OVERLAP week # 7GROUP X2 105 M-11 Memc testEMC LAB PRACTICAL TESTINDIVIDUAL 1112 M-18 Memc lab #4COMPONENT EVALUATIONweek # 9GROUP X M-25 Memc mcad #3SIGNAL SPECTRAweek # 11INDIVIDUAL 1326 M-1 Aemc lab #5SIGNAL SPECTRAweek # 12GROUP X2 142 A-8 Aemc lab #6LINE FILTERSweek # 13GROUP X2 159 A- 15 Aemc testEMC LAB THEORY TESTINDIVIDUAL 1616 A- 22 AREADING WEEK

Prof R T KennedyEMC & COMPLIANCE ENGINEERING 12 Electromagnetic Compatibility (EMC) the ability of electronic equipment to operate or function without degradation or error and NOT be an interference source in its intended operating or EM environment

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Prof R T KennedyEMC & COMPLIANCE ENGINEERING 14 ?!?!?!?!??? E M ?

Prof R T KennedyEMC & COMPLIANCE ENGINEERING 15 FIELD THEORY  Electric Field (E) force created by uneven charge distribution  Magnetic Field Intensity (H) force created by moving charges  Electromagnetic Field created whenever charges are accelerated

Prof R T KennedyEMC & COMPLIANCE ENGINEERING 16 NEAR FIELDS and FAR FIELDS ~ I V E H HIGH IMPEDANCE ELECTRIC FIELD SOURCE HIGH VOLTAGE LOW CURRENT

Prof R T KennedyEMC & COMPLIANCE ENGINEERING 17 NEAR FIELDS and FAR FIELDS ~ V I H E SOURCE LOW VOLTAGE HIGH CURRENT LOW IMPEDANCE MAGNETIC FIELD

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Prof R T KennedyEMC & COMPLIANCE ENGINEERING 20 WAVE IMPEDANCE Z Zo = 377 

Prof R T KennedyEMC & COMPLIANCE ENGINEERING 21 WAVE IMPEDANCE APPROXIMATION

Prof R T KennedyEMC & COMPLIANCE ENGINEERING 22 JAMES CLERK MAXWELL

Prof R T KennedyEMC & COMPLIANCE ENGINEERING 23 Electromagnetic Interference (EMI) any unwanted signal that adversely affects a device or system operation

Prof R T KennedyEMC & COMPLIANCE ENGINEERING 24 INTRINSICNATURAL MAN MADE WANTED UNWANTED atmospheric solar cosmic ESD components transmitters radio & TV mobiles SMPS light dimmers fluorescents

Prof R T KennedyEMC & COMPLIANCE ENGINEERING 25 Indirect Direct LIGHTNING & PULSE SOURCES

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Prof R T KennedyEMC & COMPLIANCE ENGINEERING 27 RF Reception Annoying noise Loss of sensitivity Jamming Data upset Data link disruption Control signal errors Power variations Power levels outside range Sense line feedback errors Analog signal errors Measurement errors Signal-to-noise degradation Equipment damage Circuit malfunction Physical damage

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Prof R T KennedyEMC & COMPLIANCE ENGINEERING 29 SOURCEVICTIM B A C D

Prof R T KennedyEMC & COMPLIANCE ENGINEERING 30 EMISSIONS: SUSCEPTIBILITY: IMMUNITY NOISE SOURCE SUSCEPTIBLE RECEPTOR radiated emissions radiated susceptibility conducted susceptibility conducted emissions (CULPRIT)(VICTIM)

Prof R T KennedyEMC & COMPLIANCE ENGINEERING 31 How Does EMI Affect Electronics? Radiated SusceptibilityRadiated Emissions Conducted Susceptibility Conducted Emissions

Prof R T KennedyEMC & COMPLIANCE ENGINEERING 32 TV RECEPTION INTERFERENCE

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Prof R T KennedyEMC & COMPLIANCE ENGINEERING 34 E ‘STRAY CAPACITANCE’

Prof R T KennedyEMC & COMPLIANCE ENGINEERING 35 H M ‘MUTUAL INDUCTANCE’

Prof R T KennedyEMC & COMPLIANCE ENGINEERING 36 GROUNDING PROBLEM VCVC ZCZC

Prof R T KennedyEMC & COMPLIANCE ENGINEERING 37 SOURCES Electric Fields (E) Magnetic Fields (H) E FIELD RECEPTORS CAPACITANCE (PARASITIC & MUTUAL) RECEPTORS E & M FIELD H FIELD RECEPTORS INDUCTANCE (PARASITIC & MUTUAL) E H NEAR FIELD FAR FIELD

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Prof R T KennedyEMC & COMPLIANCE ENGINEERING 40 SOURCE RECEPTOR SOURCE RECEPTOR

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Prof R T KennedyEMC & COMPLIANCE ENGINEERING 45 SYSTEM COMPATIBILITY ?  does not cause interference to other systems  is not susceptible to other system’s emissions  does not cause interference to itself

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Prof R T KennedyEMC & COMPLIANCE ENGINEERING 47 suppress the emissions at source make the coupling path inefficient make the receptor less emission susceptible

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Prof R T KennedyEMC & COMPLIANCE ENGINEERING 49 isolation (physical separation) limiting circuit bandwidth filtering grounding SHEILDING

Prof R T KennedyEMC & COMPLIANCE ENGINEERING 50 MICHAEL FARADAY

Prof R T KennedyEMC & COMPLIANCE ENGINEERING 51 Electric Field Coupling + - E-Field Metal Sphere V=0 + Field Terminations on Inside

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