emc summary.ppt
DESCRIPTION
emcTRANSCRIPT
EMC EMC
Electromagnetic Compatibility
Frank Gräbner
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
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
Lecture EMCLecture EMC Gräbner
6. Computer Simulation
( voltage emission, RF field Mefisto 2D )
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
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
Lecture EMCLecture EMC Gräbner
1.1 Conception
EMC in Hospitals
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.
Lecture EMCLecture EMC Gräbner
1.1 Example for Emission (
conducted and E – Field )
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• .....................................................................................
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