We at Interference Technology Magazine managed to produce 10 new EMC Mini Guides during 2017! Feel free to download one, or more, of our FREE EMC Guides! Choose from Mil/Aero, EMC Fundamentals, Filters, Shielding, Pre-compliance Testing, and more!
Scroll down near the bottom of our home page to see them all: http://www.interferencetechnology.com.
I just recently authored the new EMC Desk Reference through Interference Technology Magazine. For the time being, take $10 off the cover price of $39.95!
Keep the basics of EMC on hand with the new EMC Desk Reference presented by Interference Technology®, the engineer’s handbook for everything EMC. Written and compiled by Kenneth Wyatt, this quick-reference guide is a must-have, with sections including:
- Articles on EMI pre-compliance testing
- The Top 5 Reasons Products Fail EMC
- 3 Steps to Troubleshooting Radiated Emissions
- A Manufacturer’s Product chart
- & much more!
Price is just $29.95 for a limited time. Details and ordering here: https://learn.interferencetechnology.com/emc-desk-reference/
Cables or other metal (antenna-like) structures often couple to sources of common-mode currents and end up radiating, causing product failures during compliance testing. During the troubleshooting process, it would be helpful to determine the resonance of these cables or structures to confirm they are the source of certain harmonic signals.
We could certainly measure the length of the cables or metal structures, but often, they are connected to other conductive assemblies, such as circuit boards or brackets. Because of these system inter-relationships, it’s not always easy to predict the resonances within a system, and so there’s always a little uncertainty as to where to start the troubleshooting process. These simple techniques may help quickly identify potential resonances within your system or product.
One of the most common questions I receive as an EMC consultant have to do with PC board design. And, no wonder. As clock and data frequencies increase towards 10 GHz, proper PC board design becomes an imperative for proper functioning of the system. The typical “rules of thumb” we used for low frequency boards no longer seem to apply.
So, when I ran across Lee Ritchey’s self-published book, Right The First Time – A Practical Handbook on High Speed PCB and System Design (Volume 1), I was intrigued. Both this book and the follow-on volume 2 (Advanced Topics) are available on his web site. Volume 1 is now out of print, but available separately as a 295 page PDF file for just $25. However, both volumes may be purchased for the special price of $95 (the price of volume 2, alone) – a deal I highly recommend. I’ll be reviewing volume 2 later. More…
Thanks for all the great questions presented following my recent EMC webinar, sponsored by Rohde & Schwarz and hosted by UBM TechOnline. If you missed the webinar, you may go here to download a copy of the slides and listen to the webinar “on-demand”. As I mentioned in the previous three postings, I’ve grouped them by topic and will be answering them all the best I can. Be advised that for many questions pertaining to EMC, the best answer is, “it depends”, so there may not be one answer for all cases. I’ll try to include my assumptions in the answers. The questions have been edited for clarity.
This posting will address general questions on EMC from my recent webinar that were not answered in previous installments. See more…
Randy Jost and I just released our new EMC Pocket Guide, which includes some basic product design guidelines and a whole bunch of reference data, charts and graphs that a product designer or EMC engineer might require on a day to day basis. The guide is available directly from the publisher, SciTech Publishing, for a special price right now of just $20 (regular price is $21.95). I’m not sure how long this special pricing will be in effect, so you may want to order a copy now.
Every electric product designed and manufactured worldwide must meet electromagnetic compatibility (EMC) regulations, and yet, EMC compliance staff levels have been cut to the bone in companies large and small. If you are a working engineer or technician, the Electromagnetic Compatibility Pocket Guide is the first place to look while designing for EMC and your guide to thwarting electromagnetic interference.
* Concise, constant-use guide addressing the most common reasons for compliance failure.
* Get needed answers quickly and move on to other design issues.
* Pocket-size, easy to carry and use, made of durable stock for continual service.
* Available for customization with your logo and marketing copy if you order in quantities.
TABLE OF CONTENTS
Frequency vs. Wavelength
Commonly Used Equations
* EMC Magazines
* EMC Organizations
* EMC Standards Organizations
* LinkedIn Groups
* Common Symbols
* EMC Acronyms