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Posted By: rama Member Level: Silver Posted Date: 10 Jun 2008
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2008 Anna University B.E Electronics and Communication EC1005 ELECTROMAGNETIC INTERFERENCE AND COMPATIBILITY Question paper
EC1005 ELECTROMAGNETIC INTERFERENCE AND COMPATIBILITY
AIM
To understand different electromagnetic Interference problems occurring in Intersystem and in inter system and their possible mitigation techniques in Electronic design
OBJECTIVES
• To understand EMI Sources, EMI problems and their solution methods in PCB level / Subsystem and system level design.
• To measure the emission. immunity level from different systems to couple with the prescribed EMC standards
UNIT I BASIC CONCEPTS 9
Definition of EMI and EMC with examples, Classification of EMI/EMC - CE, RE, CS, RS, Units of Parameters, Sources of EMI, EMI coupling modes - CM and DM, ESD Phenomena and effects, Transient phenomena and suppression.
UNIT II EMI MEASUREMENTS 9
Basic principles of RE, CE, RS and CS measurements, EMI measuring instruments- Antennas, LISN, Feed through capacitor, current probe, EMC analyzer and detection t6echnique open area site, shielded anechoic chamber, TEM cell.
UNIT III EMC STANDARD AND REGULATIONS 8
National and Intentional standardizing organizations- FCC, CISPR, ANSI, DOD, IEC, CENEEC, FCC CE and RE standards, CISPR, CE and RE Standards, IEC/EN, CS standards, Frequency assignment - spectrum conversation.
UNIT IV EMI CONTROL METHODS AND FIXES 10
Shielding, Grounding, Bonding, Filtering, EMI gasket, Isolation transformer, opto isolator.
UNIT V EMC DESIGN AND INTERCONNECTION TECHNIQUES 9
Cable routing and connection, Component selection and mounting, PCB design- Trace routing, Impedance control, decoupling, Zoning and grounding
TOTAL : 45
TEXT BOOKS
1. Prasad Kodali.V – Engineering Electromagnetic Compatibility – S.Chand&Co – New Delhi – 2000
2. Clayton R.Paul – Introduction to Electromagnetic compatibility – Wiley & Sons – 1992
REFERENCES
1. Keiser – Principles of Electromagnetic Compatibility – Artech House – 3rd Edition – 1994
2. Donwhite Consultant Incorporate – Handbook of EMI / EMC – Vol I - 1985
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