Electromagnetic Compatibility (EMC) Design and Test Case Analysis

Junqi Zheng

• Publisher: Wiley
• Year: 2019
• ISBN:
  9781118956830
• Edition: 1
• Topic: Physical Sciences
• Subtopic: Electromagnetism

A practical introduction to techniques for the design of electronic products from the Electromagnetic compatibility (EMC) perspective

• Introduces techniques for the design of electronic products from the EMC aspects
• Covers normalized EMC requirements and design principles to assure product compatibility
• Describes the main topics for the control of electromagnetic interferences and recommends design improvements to meet international standards requirements (FCC, EU EMC directive, Radio acts, etc.)
• Well organized in a logical sequence which starts from basic knowledge and continues through the various aspects required for compliance with EMC requirements
• Includes practical examples and case studies to illustrate design features and troubleshooting
• Author is the founder of the EMC design risk evaluation approach and this book presents many years' experience in teaching and researching the topic

1
The EMC Basic Knowledge and the Essence of the EMC Test

1.1 What Is EMC?

Electromagnetic compatibility (EMC) is the capability of electronic and electrical equipment and systems to operate as designed in the forecasted electromagnetic (EM) environment, which is an important technique performance of the electronic and electrical equipment and the systems. EMC has the following two implications:

1. Electromagnetic interference (EMI), that is, the disturbance produced by the equipment and systems that operate in a certain environment, shall not exceed the limit required in their corresponding standard regulations. And the corresponding test items depend on the product classifications and the standards, for residential devices, ISM (industrial, scientific, and medical) devices and railway devices. The basic EMI test items include the following:
   • Conducted Emission (CE) Test on Power Line
   • Conducted Emission (CE) Test on Signal and Control Line
   • Radiated Emission (RE) Test
   • Harmonic Current Test
   • Voltage Fluctuation and Flicker Test
   For military device, basic EMI test items include the following:
   • CE101: Conducted Emissions, Power Leads, 30 Hz to 10 kHz
   • CE102: Conducted Emissions, Power Leads, 10 kHz to 10 MHz
   • CE106: Conducted Emissions, Antenna Terminals, 10 kHz to 40 GHz
   • CE107: Conducted Emissions, Power Leads, Spike, Time Domain
   • RE101: Radiated Emission, Magnetic Field, 30 Hz to 100 kHz
   • RE102: Radiated Emission, Electric Field, 10 kHz to 18 GHz
   • RE103: Radiated Emission, Antenna Spurious and Harmonic Outputs, 10 kHz to 40 GHz
   For vehicles, as well as vehicle electronic and electrical products, the basic EMI test items include the following:
   • Vehicle Radiated Emission Test
   • Conducted Emission Test for Vehicle Electronic and Electrical Parts/Modules
   • Radiated Emission Test for Vehicle Electronic and Electrical Parts/Modules
   • Transient Emission Test Vehicle Electronic and Electrical Parts/Modules
2. Electromagnetic susceptibility (EMS), that is, in normal operation, the devices and system in a certain environment can withstand the EM disturbance specified in their corresponding standard regulations. Similarly, according to the product classification and standards for residential devices, ISM (industrial, scientific, and medical) devices, and railway devices, the basic EMC test items include the following:
   • Electronic Static Discharge (ESD) Immunity Test
   • Electrical Fast Transient Burst (EFT/B) Immunity Test
   • SURGE Immunity Test
   • Radiated Susceptibility Immunity Test (RS)
   • Conducted Susceptibility Immunity Test (CS)
   • Voltage Dip and Voltage Interruption Test
   For military device, the basic EMI test items include the following:
   • CS101: Conducted Susceptibility, Power Leads, 30 Hz to 50 kHz
   • CS103: Conducted Susceptibility, Antenna Port, Inter–modulation, 15 kHz to 10 GHz
   • CS104: Conducted Susceptibility, Antenna Port, Rejection of Undesired Signals, 30 Hz to 20 GHz
   • CS105: Conducted Susceptibility, Antenna Port, Cross‐modulation, 30 Hz to 20 GHz
   • CS106: Conducted Susceptibility, Power Leads, Spike, Time Domain
   • CS114: Conducted Susceptibility, Bulk Current Injection, 10 kHz to 40 MHz
   • CS115: Conducted Susceptibility, Bulk Current Injection, Impulse Excitation
   • CS116: Conducted Susceptibility, Damped Sinusoidal Transients, Cables and Power Leads, 10 kHz to 100 MHz
   • RS101: Radiated Susceptibility, Magnetic Field, 30 Hz to 100 kHz
   • RS103: Radiated Susceptibility, Electric Field, 10 kHz to 40 GHz
   • RS105: Radiated Susceptibility, Transient Electromagnetic Field
   For vehicles, and vehicle electronic and electrical products, the basic EMS test items include:
   • Conducted Coupling/Transient Immunity Test at Power Port Conf...

Table of contents

• Cover
• Table of Contents
• Preface
• Exordium
• Introduction
• 1 The EMC Basic Knowledge and the Essence of the EMC Test
• 2 Architecture, Shielding, and Grounding Versus EMC of the Product
• 3 EMC Issues with Cables, Connectors, and Interface Circuits
• 4 Filtering and Suppression for EMC Performance Improvement
• 5 Bypassing and Decoupling
• 6 PCB Design and EMC
• 7 Components, Software, and Frequency Jitter Technique
• Appendix A: EMC Terms
• Appendix B: EMC Tests in Relevant Standard for Residential Product, Industrial, Scientific, and Medical Product, Railway Product, and Others
• Appendix C: EMC Test for Automotive Electronic and Electrical Components
• Appendix D: Military Standards Commonly Used for EMC Test
• Appendix E: EMC Standards and Certification
• Further Reading
• Index
• End User License Agreement