EMC (Electromagnetic Compatibility), definition, standards, terminology
Introduction - Recap General overview of EMC, concept of source, coupling, and victim Directives and Standards of the European Community Origin of noise and EM disturbances
Some methods for solving EMC problems
EMC (Electromagnetic Compatibility) is a field of study and practice that deals with the management of electromagnetic interference to ensure the proper functioning of electrical and electronic equipment. Its objective is to ensure that different electrical devices and systems can coexist without undesirable mutual interference.
Within the scope of EMC, it is essential to understand the concepts of source, coupling, and victim. A source of electromagnetic interference can be a device or system that emits unwanted electromagnetic signals. Coupling occurs when these unwanted signals propagate and interfere with other equipment or systems, referred to as victims. Victims can experience disturbances or malfunctions due to this electromagnetic interference.
To regulate EMC, the European community has established directives and standards that must be complied with by manufacturers and users of electrical and electronic equipment. These directives, such as the EMC Directive 2014/30/EU, along with the corresponding standards, specify the limits for electromagnetic emissions from devices, as well as the levels of resistance to electromagnetic disturbances that they must adhere to.
Noise and electromagnetic disturbances can have various origins, including parasitic electrical signals, electrostatic discharges, voltage transients, electromagnetic radiation, and many others. Understanding the origin of these disturbances is essential for effectively preventing or mitigating them.
When it comes to solving EMC-related problems, there are several methods and approaches. This may involve proper design of electrical and electronic circuits, the use of filters and shielding, adequate grounding, as well as testing and measurement techniques to assess compliance with EMC standards.
It is important to note that EMC is a complex and ever-evolving field, requiring specialized expertise to ensure compliance with standards and effectively resolve electromagnetic interference issues.
- معلم: BOUAZZA Abdelkader