This article discusses what should and could be done as practicing professional engineers to lead when we’re not the ones in charge.
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.
This article describes the MOV circuit design sequence for the AC mains port overvoltage protection of pluggable type A equipment.
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.
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.
The answer to this question is linked with breakdown of Moore’s law and Dennard’s scaling theory.
The regular “Banana Skins” column was published in the EMC Journal, starting in January 1998.