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1. The Physical Basis of SI, PI and EMC

Provides 3 hours towards CPD

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1. The Physical Basis of SI, PI and EMC image #1

Updated for 2021

Electrical/electronic/radio/digital design, and Maxwell’s Equations, are rarely taught in a way that makes SI, PI and EMC easy to achieve in practice…

– the approach described in this almost-maths-free Webinar 1 (and employed through all our “design-guide” webinars) makes SI, PI and EMC design easy…

This module focuses on the RF EMC issues that most electronic circuit designers find difficult, because of the apparently weird things that can happen at frequencies above a few MHz.

Module is 202 slides over 101 pages

Contents

 
1. Electromagnetic fields, waves, & importance of the return current path
2. Field theory, permittivity, permeability, wave impedance and velocity
3. Near-field and Far-field
4. Three types of analysis (includes Skin Effect)
5. Waveforms, spectra, and ‘accidental antennas’
6. Three parts to every EMC issue, and four types of EM coupling
7. Differential mode (DM) and common mode (CM)
8. The benefits of metal planes
9. Overview of RF emissions
10. External connections to ‘Earth’, ‘ground’, 'chassis' etc
11. Non-linearity, demodulation and intermodulation
12. Three interference mechanisms
13. Overview of RF immunity
14. ‘Internal EMC’ and crosstalk
15. Improving profitability while reducing financial risks
16. Introduction to EM Engineering
17. Controlling return currents with metal planes
18. EM Zoning using guidelines based on the wavelength, λ, at fMAX
plus the use of Reference Planes and RFREF s
19. Some useful references and equations

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