EMC summary.ppt
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Transcript of EMC summary.ppt
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EMC EMC
Electromagnetic Compatibility
Frank Gräbner
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Lecture EMCLecture EMC Gräbner
Programme
1. Introduction1.1 Conception1.2 EMC Standards
2. Electromagnetic Coupling2.1 Disturb Flow, Disturb Hollow 2.2 Nature of Coupling2.3 EMC Design
3. EMC Arrangement
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Lecture EMCLecture EMC Gräbner
3.1 Shielding3.2 EMC Constructions
4 EMC Measurements
4.1 Practice 4.2 New Measurements Standards 5 EM Fields and Life 5.1 Biological Effects of electromagnetic fields
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Lecture EMCLecture EMC Gräbner
6. Computer Simulation
( voltage emission, RF field Mefisto 2D )
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Lecture EMCLecture EMC Gräbner
Books
[ 1 ] Phillipow, E. Grundlagen der Elektrotechnik, Akademischer Verlag 1976, Leipzig
[ 2 ] Durcansky, G. EMV gerechtes Gerätedesign, Franzis Verlag München 1992
[ 3 ] Unger, H. Elektromagnetische Wellen auf Leitungen, Hüthig Verlag, Heidelberg 1980
[ 4 ] Leute, Kunstoffe und EMV, Hanser Verlag, 2000
[ 5 ] Weiss, J. EMV – gerechtes Gehäusedesign, TAW Wuppertal, Seminar-Unterlagen, 2003
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Lecture EMCLecture EMC Gräbner
1.1 Conception
Why EMC ?
- small packages - higher frequency CPU- new information technology ( WLAN, IEEE
standarts, UMTS, GPRS ..... )- new car technics , car distance radar- The devices must be safe from other
electromagnetic fields, voltages and impulses
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Lecture EMCLecture EMC Gräbner
1.1 Conception
EMC in Hospitals
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Lecture EMCLecture EMC Gräbner
1.1 EMC Directive:
All apparatus liable to cause electromagnetic disturbance ( emission ) or performance of wich is liable to be affect by such disturbances ( immunity ) .
But a device must not have so much emission and must work well in an immunity effect.
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Lecture EMCLecture EMC Gräbner
1.1 Example for Emission (
conducted and E – Field )
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1.2 EMC Standards Gräbner
- Product Standards, Generic Standards , Company Standards and ...
- In Europe : EN Standards for the EU Market
For Example:
• Voltage Disturbance EN 55011• Radiation Disturbance EN 55011• Current Harmonics EN 60555-2• Electrostatic Discharge EN 61000-4-2• Burst EN 61000-4-4• Surge EN 61000-4-5• RF Immunity EN 61000-4-6• Magnetic Fields Immunity EN 61000-4-8• .....................................................................................
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1.2 EMC Standards1.2 EMC Standards GräbnerGräbner
Basic Standards EN DIN 61000-5-x
Generic Standards Hierarchy EN DIN 61000-6-x
Product Family Standards ( Limits )
Product Standards ( special ) first !!!! z.B. USV Norm, PC use this
standard