Abstract The article discusses the differences between the electromagnetic pulses at lightning (LEMP) and at high altitude nuclear explosion (NEMP or HEMP). The article also shows that these differences do not allow to transfer LEMP experience on to NEMP. The author questions the effectiveness of grounding of electronic equipment as the main protection principle against … [Read more...]
Be Careful with Low Cost/Quality Common Mode Chokes ….
Dear readers, I have been really busy working in training and EMI troubleshooting in the past months. I am happy to be here again with a new post. This month we will see a topic from a real-world situation - very interesting - for electronic designers working in conducted emissions problems. In one of the projects I was involved with several weeks ago, a product was … [Read more...]
Full Range of Industrial AC Surge Protection Solutions Now Available from Transtector Systems
Modular I2R 75 kA Components Engineered for UL Type 1 and 2 Applications HAYDEN, Idaho – Transtector Systems, an industry leading provider of end-to-end power and signal integrity solutions, has released a comprehensive range of modular DIN Rail AC Surge Protection Devices (SPDs) for industrial applications ranging from automation and control, public safety and security to … [Read more...]
Signal and Data Line Filters Designed for Use in MRI Rooms
ITG Electronics introduces Signal and Data Line filters designed for use in MRI Rooms to provide clean power to low voltage signal and data entering MRI Shielded Rooms through power and CAT-5 cables to mitigate interference with MRI scanning equipment operation. Elmsford, NY June 2018 – ITG Electronics, a leading design and manufacturer of CM, DM chokes and Transformers … [Read more...]
First Double Choke with Molding Technology
Waldenburg (Germany), 17 July 2018 – Würth Elektronik eiSos, manufacturer of electronic and electromechanical components, unveils WE-MCRI - a novel double choke: It is the first of its kind on the market with molding technology. With its soft saturation characteristics, a WEMCRI is above all suited for DC/DC converter applications. WE-MCRI consists of two identical round … [Read more...]
Film Capacitors: Robust 3-Phase Filter Capacitors
TDK Corporation (TSE:6762) presents the new, extensive B3237* series of EPCOS MKD 3-phase capacitors for filter applications. The capacitors cover a voltage range from 250 VRMS to 850 VRMSin 10 stages and are available with capacitances of between 3 x 10 µF and 3 x 400 µF. Depending on the type, the capacitors are designed for currents of up to 60 A. Internally, the … [Read more...]
ITG MRI Room Power Line Filters
ITG Electronics introduces UL and cUL Listed MRI Room Power Line EMI Filter Series designed to reduce EMI emissions from entering a MRI Shielded Room through the power lines causing interference with MRI scanning equipment operation. Elmsford, NY June 2018 – ITG Electronics, a leading design and manufacturer of CM, DM chokes and Transformers since 1963, is now offering a … [Read more...]
UNECE Regulation 10: Electrical/Electronic Sub-Assembly Radiated Emissions Testing (Annexes 7 and 8) and Radiated Immunity Testing (Annex 9)
In this installment in the series of blogs on UNECE Regulation 10, Revision 5, Amendment 1 (8 October 2016), hereafter referenced as R10.05, we will look at radiated emissions and immunity testing of Electrical/Electronic Sub-Assemblies (ESAs). ESA RADIATED EMISSIONS (Annexes 7 and 8) Like the vehicle radiated emissions testing annexes, R10.05 has separate … [Read more...]
UNECE Regulation 10: Vehicle Radiated Emissions & Immunity Testing (Annexes 4, 5 and 6)
Having dealt with the administrative side of Type Approval to UNECE Regulation 10, Revision 5, Amendment 1 (8 October 2016), hereafter referenced as R10.05, in the first three blogs in this series, this installment begins looking at the tests themselves commencing with the radiated emissions requirements of Annexes 4 and 5 and radiated immunity requirements of Annex … [Read more...]
UNECE Regulation 10: Worst-Casing
Before applying for a new Type Approval, or extension of an existing certificate, the applicable tests must be agreed with the Technical Service. A later blog in this series will cover the subject of approval extensions, so for this post we will consider new approvals. Where a manufacturer has multiple variants and/or configurations, worst-casing can significantly reduce … [Read more...]
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