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Engineering Developments

Wirelessly Powering IoT With 5G Network

The team at Georgia tech has created a Rotman lens-based rectifying antenna, or rectenna, system. This flexible rectenna system has the capacity to harvest millimeter-waves within the 28-GHz band.
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Product Recalls

Industry News

Current-Compensated Ring Core Chokes

TDK Corporation offers a new series of current-compensated EPSOC double-ring core chokes for the suppression of common-mode interferences in switch-mode power supplies, converters, and domestic appliances.

Design

EMC Design Techniques for Electric Vehicle Powertrain Modules

This article presents the EMC design techniques for electric vehicle powertrain modules. High voltage EMC regulations for powertrain modules are reviewed first to help understand associated design challenges. The design techniques are then demonstrated in detail to help engineers design a module that will pass the EMC requirements in the test chamber.

System-Level Simulation Solutions for EOS and ESD

The electronic industry has embraced simulation to address several complex design challenges, but reliability is still mostly dealt with best design practices and tested with prototypes. In this article, we present how modeling and simulation approaches can help designers perform virtual prototyping and uncover reliability issues especially EOS/ESD before going for physical prototypes.

EMC and Safety for Installations: Part 1

In Part 1 of this two-part article, we’ll discuss the development of “grounding networks” and the shift to meshed structures to reduce damage from overvoltages. Part 2 will appear in our November 2020 issue.

Fundamentals

Continuing Your Professional Education in 2021

Traditionally, the start of a new year is a time when we reflect on the progress we’ve made during the year passed and set our goals for the new year. We’ve queried training resources in our industry to provide you with an overview of free or affordable solutions to meet your training goals in 2021.

There’s an “R” in “Varistor”

This article analyzes the V-I characteristic of a varistor and shows it is more appropriate to treat the varistor as a current dependent resistance rather than the conventionally taught voltage dependent resistance. Spice circuit examples are given, based on a current dependent resistance varistor model.

Standards and Compliance

Product Liability Marketing Defects

The way you market your product can turn an otherwise safely designed product into an unsafe product that causes injury and creates liability for the manufacturer and product seller.
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