Introduction The increasing use of electronics in vehicles introduces new risks of interference and crosstalk between components. OEMs and government regulators impose strict limits on electromagnetic interference (EMI) and electromagnetic compatibility (EMC), and redesigning a component that fails to meet these standards can be both expensive and time-consuming. This article … [Read more...]
PC Board Design for Wireless Products
INTRODUCTION TO SELF-GENERATED EMI It seems many manufacturers these days are developing products that incorporate wireless technologies—both in new and existing products. Many of these products are using LTE cellular connectivity and designers are finding that the on-board DC-DC converters and processor/memory bus noise are creating enough broadband electromagnetic … [Read more...]
How to Build Your Own EMI Troubleshooting and Pre-Compliance Kit
Electromagnetic compatibility (EMC) and the related electromagnetic interference (EMI) are some of the obstacles that must be overcome before nearly any electronics product can be brought to market—whether it’s an Industrial Internet of Things (IIoT) device, a consumer electronics product, or military and aerospace equipment. Products must not interfere with one another … [Read more...]
Würth Elektronik Circuit Board Technology Successfully Completes Research Project on Intelligent ARM-Hand Orthosis
In automobile production, industrial robots and production lines largely relieve people of having to work with heavy loads. This is not the case for people who work in a trade or in care, where the body can be heavily burdened by hard work. In the PowerGrasp project, a second skin provides additional strength. Following three years of research, the promising results are now … [Read more...]
Controlling EMI in High-Speed PCB Design
Patrick Carrier - Mentor Graphics, a Siemens Business Antennas come in all shapes in sizes. In addition to wireless communications, they are becoming ubiquitous in the automotive space as well. Similarly, very high speed digital circuits are pervading these realms. It is the unintentional creation of antennas in these high speed digital circuits that cause Electromagnetic … [Read more...]
Conformal Conductive Coating and EMI Shielding
This is a diverse and promising space. In one manifestation, spray-on inks are targeting package-level EMI shielding. Here, they hope to displace sputtering, the incumbent, which benefits from sunk CapEx and lower material consumption costs. They offer low CapEx production in atmospheric conditions and better conformal coverage. Others are developing inkjet printing solutions, … [Read more...]
Review of MIL-STD-464 Requirements
Introduction My reviews have covered MIL-STD-461 over the past few months so it’s time to step up to the system requirements. We realize that the MIL-STD-461 requirements apply to equipment items and subsystems as stated in MIL-STD-464. Revision “C” is the current edition, but a review is a little overdue. In this review, the discussion will focus on the various requirements … [Read more...]
Do Not Miss the EMC + SIPI 2019 Symposium!
In a few weeks, we will be able to enjoy the 2019 IEEE International Symposium on EMC, Signal and Power Integrity (EMC+SIPI). I am so excited! This symposium is sponsored by the IEEE EMC Society (EMC-S), the world's largest organization dedicated to the development and distribution of information, tools and techniques for reducing electromagnetic interference with support … [Read more...]
Review of MIL-STD-461 General Requirements
Introduction Recently I noted that my series on MIL-STD-461 test methods was closing since I had accomplished a review on each of the test methods. It seems appropriate to continue with a review of General Requirements – those things common to the various test methods. These requirements have been around since the first release of MIL-STD-461 and MIL-STD-462 dealing with … [Read more...]
What is the Most Important EMC Design Guideline?
INTRODUCTION EMC design guidelines have always been a popular subject in the EMC design community. What is the most important EMC design guideline, i.e. the guideline with the highest impact on the emission and immunity of electronic circuitry? Studying books and literature from renowned EMC experts often tells us that the most important EMC design guideline is: … [Read more...]
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