The way this electromagnetic energy is transferred from a source to a receptor fall into one of the following four categories. Potential receptors include radio receivers, electronic circuits, appliances, people, and just about everything that utilizes or can detect electromagnetic energy. Potential sources of electromagnetic compatibility problems include radio transmitters, power lines, electronic circuits, lightnings, lamp dimmers, electric motors, arc welders, solar flares and just about everything that utilizes or creates electromagnetic energy. The victim of interference (sensitive circuitry), also called EMI victimĮMI (Electromagnetic Interference) is defined as the electromagnetic emissions discharged by a device or a system that interfere with the normal operation of other devices or systems.Įlectromagnetic compatibility problems are generally solved by identifying at least two of the above mentioned components and eliminating one of them.The source of interference (noisy system or power supply), also called EMI source.It also enables the system to meet the EMC control specifications limits. This system compatibility must be proven by tests to be certified by the applicable EMC standard.Īll these developments had lead to the emergence of a new engineering branch – the EMC engineering.ĮMC engineering use analytical methods, design practices, test procedures, and solution hardware and components both to enable the system to function without errors in its target electromagnetic environment, and to prevent it from inflicting errors to any adjacent system. All electronic systems must be compatible to all other systems in the affected environment, in terms of EMC. Nowadays, various EMC standards define the permissible electromagnetic interaction between every system and its immediate environment. Unfortunately, there are still a lot of designers that encounter difficulties when dealing with EMC, either with understanding the issue, or in solving the related problems.ĮlectroMagnetic Compatibility (EMC) is defined as the ability of a device or system to satisfactorily function (without errors) in the target electromagnetic environmental conditions. Many different standards have been developed and released, and all electrical and electronics engineers are aware of different compatibility tests. The concern of designers to product electromagnetic compatibility issues has dramatically increased in the recent years.
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