Amphenol, a manufacturer of interconnect products for the military, commercial aerospace and industrial markets, approached MPE Ltd of Liverpool last year with a view to developing a ground-breaking range of connectors with integrated EMC filtering. So, in conjunction with Amphenol, MPE has produced the Rhino range of filtered connectors to deliver a high level of EMC … [Read more...]
The Need to Develop a Standardized Program for the Education and Training of Electromagnetic Compatibility Engineers
Anthony A. DiBiase There is an evolution in the study of electromagnetic field effects on electrical and electronic products and systems. It is progressing from an engineering art to an engineering science. This is in part due to the fact that the electromagnetic field source environment is increasing in complexity along with a greater intensity. The complexity and … [Read more...]
The Annual IEEE EMC Show – Why Dresden? Plus Proof of the Arbitrary Selection of Automotive Amplifier Harmonic Limits
Read other posts in the "Elephant in the Test Room" series here.It is looking good for using 3D software to diagnose the performance of the radiated emissions test fixture. Should get the go ahead any day now. Meantime, let’s explore this year’s hot topic. The Annual IEEE EMC Show - Why Dresden?It is no surprise that some USA residents in the EMC industry are wondering why the … [Read more...]
Avoid the Most Common Failures with These 7 Essential EMC Design Rules
A reader recently asked me what the top design rules were that they could implement on their product to maximize the chances of passing FCC and CE testing. There’s no doubt that there are countless ways to fail emissions and immunity tests, but a pattern of failure modes did emerge at my EMC lab.Regardless of the type of product I was testing, be it medical, industrial, … [Read more...]
A Report from the Southeastern Michigan EMC Fest
I recently attended the Southeastern Michigan EMC Fest, so this posting is dedicated to the show. I have a lot of admiration for Scott Lytle (Chapter Chair) and the Southeastern Michigan chapter he runs, so I decided to attend this year’s EMC Fest. The key attraction was Doug Smith, who gave attendees the benefit of his wisdom on diagnosing automotive EMC issues.The … [Read more...]
Linearization of EMC Amplifiers and Fixing the Broken Automotive Emissions Test Fixture
Read other posts in the "Elephant in the Test Room" series here.Linearization of EMC AmplifiersThis section of the posting got a little long-winded but it at least serves two purposes. It is a step closer to closing Elephant in the Test Room #2 ‘Disharmony in Harmonic Limits,’ and it also helps determine the linearization target on the TWT amplifier we are working with.The … [Read more...]
A Crossword Just for EMC
ACROSS3) and 6) down. If the walls have ears in this judge’s room, don’t expect a reply 7) and 8) across. EHT can cause this to light up the dark8) See 7) across10) A heck of a lot of power, apparently12) The theme of this crossword13) Germany’s own version of 12) across14) A few billion of these involved in 7) across16) With 15 down the bible of EMC since 1970 18) Abbreviated … [Read more...]
Elephant in the Test Room #3 – Fixing the Broken Automotive Emissions Test Fixture
Read other posts in the "Elephant in the Test Room" series here.Please note, regarding the fate of Elephant #2 – ‘Disharmony in Harmonic Limits’, it has now fallen under the umbrella of ‘Linearization of EMC Amplifiers’ and will be alluded to again during the part of the design exercise that determines practical harmonic levels. And so, with no further ado, onto a whole new … [Read more...]
Elephant in the Test Room #2 Continued and The Design Guide Article
Read other posts in the "Elephant in the Test Room" series here.Elephant #2 - Disharmony in Harmonic LimitsThe Room: RF immunity testingThe Elephant: The curbing of the contribution made by harmonics to a calibrated test-field varies wildly from standard to standard, and within standardsThe Culprit: Harmonic limits that are seemingly not well thought through, and / or are open … [Read more...]
Training the Intern and Elephant in the Test Room #2 Continued
Read other posts in the "Elephant in the Test Room" series here.Elephant #2 - Disharmony in Harmonic LimitsThe Room: RF immunity testingThe Elephant: The curbing of the contribution made by harmonics to a calibrated test-field varies wildly from standard to standard, and within standardsThe Culprit: Harmonic limits that are seemingly not well thought through, and / or are open … [Read more...]
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