This Part II of the tutorial illustrates the Bode plots’ use in several EMC applications. EMC applications will include the non-ideal models of resistors, inductors, and capacitors, as well as the spectral bounds on digital clock signals.
Direct Current (DC) applications have become more prevalent in recent years, primarily due to the increased usage of renewable energy and energy storage systems. A review of the existing safety standards and other literature shows that there is limited experimental data on DC human body resistance. In particular, no information was found by the authors describing the repeatability of DC body impedance and the effect of contact material and other variables.
Assessing the liability between the raw material suppliers, component suppliers, finished product manufacturers, installers, and maintenance personnel is a very difficult legal proposition.
This article describes the latest developments with CISPR Subcommittee B. It highlights the changes in Amendment 2 of CISPR 11 – Edition 6.0 released in January of 2019.
EMC radiated problems in HF/VHF ranges are typical in products with switching-mode power supplies (SMPS) as for example flyback and buck converters. Usually no high power is needed to radiate signals well over the legal EMC limits.
