Let’s Talk About Leadership in Compliance Engineering
This article discusses what should and could be done as practicing professional engineers to lead when we’re not the ones in charge.
Experiments of DC Human Body Resistance I
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.
Preventing Liability for Component Part Suppliers and Their OEMs
Assessing the liability between the raw material suppliers, component suppliers, finished product manufacturers, installers, and maintenance personnel is a very difficult legal proposition.
Update on IEC CISPR Subcommittee B Activities: Amendment 2 and other Potential Improvements
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.
IEC 62368-1 AC Mains Port Protection Component Requirements
This article describes the MOV circuit design sequence for the AC mains port overvoltage protection of pluggable type A equipment.
Basic Bode Plots in EMC Applications – Part II: Examples
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.
Radiated EMI From A Buck Converter
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.
Why Tunnel FETs?
The answer to this question is linked with breakdown of Moore’s law and Dennard’s scaling theory.
Banana Skins – May 2019 (#180-187)
The regular “Banana Skins” column was published in the EMC Journal, starting in January 1998.