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1. IntroductionGrounding is always one the of most important EMCtopics. A well-defined ground system is the first requirementsto any electrical and electronics design. Knowing where thereturn current flows allows designers to estimate the electro-magnetic emission and crosstalk. The ground is considered asa point of voltage reference. This is generally true except whenlarge currents or high-frequency currents flow through non-zero impedance with the ground trace or sheet. These unex-pected ground voltages will result in failure or malfunction.
1. Introduction Grounding is always one of the most important EMCtopics. A well-defined ground system is the first requirement of any electrical and electronics design. Knowing where there current current allows allows designers to estimate the electro-magnetic emission and crosstalk. This is generally true except when large currents or high-frequency currents flow through non-zero impedance with the ground trace or sheet. These unex-pected ground voltages will result in failure or malfunction.