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Interference Technology

For EMI / EMC Engineers

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Amplifers

Comparison of PWM VFDs versus Resonant Link Converters – Part 1

 

AC variable frequency drives (VFDs) have been in existence in a number of forms since the early 1970s. In the early 1980s the “pulse width modulated” (PMW) VFD versions began to appear. This form of motor control produced less motor rotor and stator harmonic heating and delivered smoother torque control at slow motor speeds. Thirty years on PWM VFDs are still the most … [Read more...]

Heilind Electronics Partners with Quell Corporation, Expanding EMI/RFI Filtering Portfolio

 

Heilind Electronics, a premier global distributor of electronic components, has expanded its connector portfolio with the addition of Quell Corporation – a subsidiary of HEICO and a leading manufacturer of EMI/RFI and transient protection solutions. The distribution agreement includes both Heilind Electronics and Interstate Connecting Components (ICC), the mil-aero division of … [Read more...]

Interstate Connecting Components (ICC) Introduces BHA PTFE-Plated M28876 Connectors from Amphenol Fiber Systems

 

Interstate Connecting Components, a division of Heilind Mil-Aero and leading distributor of military-aerospace connectors and accessories, is now offering M28876 circular fiber optic connectors with black hard anodized (BHA) PTFE (polytetrafluoroethylene) plating. The connectors are precision-engineered by Amphenol Fiber Systems International, a leading manufacturer of fiber … [Read more...]

TMD USA wins major defense contract for traveling wave tube amplifiers in a mission-critical surveillance role

 

Now part of Communications & Power Industries (CPI)) has won a large defense contract for traveling wave tube amplifiers (TWTAs) for use in a radar unmanned aerial vehicle program.  Valued in excess of $2.5 million, the contract was awarded by a prime contractor under the terms of a competitive bid.  Said Tom Curtin, vice president, sales and business development, TMD … [Read more...]

Orbel, Niche Designer and Manufacturer of Light-Gauge Metal Components and Assemblies, Serves Critical-Mission Applications from Fighter Jets to Self-Driving Cars for 60 Years and Counting

 

By combining hard work with ingenuity over three generations, Orbel, maker of custom light-gauge metal components and assemblies, quietly contributes to progress around the world.   From precision parts for U.S. fighter jets to electric cars and tomorrow’s self-driving cars, this three-generation family business has grown from a man-in-a-garage operation started … [Read more...]

HARTING Names Heilind Electronics 2020 North American Broadline Distributor of the Year

 

The North American Broadline Distributor of the Year award is based on the outstanding support of HARTING products, year-over-year sales growth and first-class customer support. Heilind Electronics, a leading distributor of electronic components and authorized global distributor for HARTING, has been honored with the manufacturer’s 2020 North American Broadline Distributor … [Read more...]

Rohde & Schwarz Obtains ISO 27001 Certification

 

Rohde & Schwarz has obtained ISO/IEC 27001:2013 certification, an internationally recognized standard confirming information security management is of top priority for the privately-owned company. TÜV NORD CERT GmbH – an external certification body – has confirmed that the dedicated German locations of Rohde & Schwarz GmbH & Co. KG, have a management system in … [Read more...]

Benefits for Test & Measurement Market from Using LabVIEW with Sentinel 3

 

PPM Test has announced a National Instruments certified LabVIEW driver for their world-leading EMP/EMC conformance test and measurement ‘Sentinel 3’ system. Laboratory Instrument Engineering Workbench (LabVIEW) is a system that helps users to visualize their applications from hardware configuration through to debugging via graphical programming. By being National Instruments … [Read more...]

Don’t Rely on the Stability of the Mains Frequency

 

My old colleague and good friend Tim Williams sent me the story below for inclusion in EMI Stories/Banana Skins, and I found it so interesting in so many ways that I decided to publish it as a Blog. In so very many EMC standards and other meetings on EMC, we hear that the stability of the AC mains power frequency is either ‘not an EMC issue’ or is ‘never a real EMC … [Read more...]

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