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Design

Characterization for ESD Design, the TLP Zoo: Part 2

This is the second of a two-part series on transmission line pulse (TLP) testing.

Evaluation of EMC Emissions and Ground Techniques on 1- and 2-layer PCBs with Power Converters

We continue to focus on the AC/DC power converter board (2-layer PCB). We evaluate the implementation of several EMC countermeasures and present the conducted and radiated emissions results performed according to the CFR Title 47, Part 15, Subpart B, Class B.

Conducted Emissions Feedback from VSD-Operated Products

The ubiquitous increase in the use of mains power switching devices has been paralleled by the increase in nuisance tripping of GFCIs and other protection devices. Nuisance tripping can be identified to contain such high frequency signals and these must be properly taken into account when designing proper GFCI operation in this environment.

Evaluation of EMC Emissions and Ground Techniques on 1- and 2-layer PCBs with Power Converters

This is the eighth article in a series of articles devoted to the design, test, and EMC emissions evaluation of 1- and 2-layer PCBs that contain AC/DC and/or DC/DC converters and employ different ground techniques [1-7].

Failures Caused by Ground Potential Rise (GPR) at Interconnected Houses

Much has been written about failures due to ground potential rise (GPR), generally in connection with single houses with multiple grounds. But in cases where multiple houses are interconnected via a single piece of equipment, equipment failures could be caused by insulation issues due to GPR attributable to lightning.
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Evaluation of EMC Emissions and Ground Techniques on 1- and 2-layer PCBs with Power Converters

This is the seventh column in a series devoted to the design, test, and EMC emissions evaluation of 1- and 2-layer PCBs that contain AC/DC and/or DC/DC converters, and employ different ground techniques .

Introduction to Validation Test Concepts in a Mixed Signal ASIC

Traditionally, validation engineers of analog products have had to worry about one thing, their analog function. But with the advent of functional safety, the complexity in system design has increased, and functions once found only in digital devices are now making their way into analog devices as well. This leaves individuals with one question- how to validate?

EMC Design Techniques for Electric Vehicle DC-DC Converters

DC-DC converters are among the most important modules in an electric vehicle. In this article, we offer three recommendations to address design aspects of DC-DC converters that will make a huge difference in their EMC performance.

How EMI Filters Are Specified For RF Performance

Don’t overlook the fact that EMI filters can be used to prevent unwanted RF noise (such as electrical fast transient burst, conducted RF, and some surges) from entering susceptible devices.

Evaluation of EMC Emissions and Ground Techniques on 1- and 2-layer PCBs with Power Converters

This article focuses on PCB layout considerations and the design of the reference return paths for the one- and two-layer boards.
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