Vishay Intertechnology, Inc. recently announced a new series of 1500-W surface-mount automotive transient voltage suppressors with the industry's lowest profile of 1.1 mm, and breakdown voltages from 6.8 V to 43 V. Featuring the eSMP(TM) TO-277A package, the TPC series offers a 27 percent smaller footprint than devices in the traditional SMC packageIdeal for automated … [Read more...]
Low Power Digital Optocouplers for Hybrid Electric Vehicles
Avago Technologies, a supplier of analog interface components for communications, industrial and consumer applications, recently announced a pair of automotive-grade high speed, low power, digital CMOS optocouplers for use in Hybrid Electric Vehicles. The design of the IC provides excellent electrostatic discharge (ESD) performance of 4kV Human Body Model (HBM) and 400V … [Read more...]
New Immunity Test Software Provides Increased Functionality
Teseq Inc., a developer and provider of instrumentation and systems for EMC emission and immunity testing, recently announced a major upgrade to its AutoStar software, a comprehensive, integrated immunity test management program now in its fifth version. New standard features of AutoStar 5.0 that significantly increase functionality and usability include a new "overview" … [Read more...]
Swiss Solar-Powered Airplane Set For EMI Testing
Solar Impulse, the Swiss bid to make the first solar-powered flight around the world, rolled out its prototype recently at an airbase near Zurich and powered up the engines. The airplane was rolled out for an initial series of stationary tests involving its engines and electromagnetic interference.Learn more at Physorg.com. … [Read more...]
Canadian Test Lab Achieves Verizon Independent Testing Laboratory Approval
National Technical Systems, Inc., recently announced that its Calgary, Alberta, Canada, laboratory has been certified as a Verizon Independent Testing Laboratory (ITL) for NEBS testing. The Verizon ITL certification program approval allows NTS Calgary to perform Network Equipment Building System (NEBA) testing for Verizon's telecommunications equipment vendors. These … [Read more...]
EMI Shielding Molded Into Plastic Car Radio Cases
Delphi Automotive may replace numerous sheet metal enclosures for electronics in cars and elsewhere with plastic. Plastic cases replace formed sheet metal cases assembled with screws and cooled with fans. The new plastic cases achieve required EMI and RFI shielding by completely enclosing electronics with a mesh Faraday cage that is insert molded.Learn more at Design News. … [Read more...]
Using a Comb Generator with a Pair of Current Probes to Measure Cable Resonance
(A Useful Technique When a Tracking Generator is not Available) A comb generator RF source can be a handy substitute when a tracking generator is not available on a spectrum analyzer, EMC consultant Doug Smith says in this month’s Technical Tidbit. In this case, a USB powered comb generator RF source is used to supply the signal used to measure the resonant frequencies of a … [Read more...]
IEC Releases Corrigendum for Voltage Variations Immunity Tests Standard
The IEC recently released a corrigendum for the electromagnetic compatibility standard IEC 61000-4-34, titled “Testing and measurement techniques - Voltage dips, short interruptions and voltage variations immunity tests for equipment with mains current more than 16 A per phase.”View and download the corrigendum at the IEC Web site. … [Read more...]
Internet-Enabled Transient Generator
The TRA3000 system by EMC-Partner brings the power of the Web to the EMC laboratory. An Ethernet interface and internal Web server enable control, communication and report generation without proprietary software. A modular architecture enables on-site upgrades for any combination of ESD, EFT, surge, ac/dc dips, interrupts and variations, common mode and both ac and impulse … [Read more...]
MEMS Spread Spectrum Oscillators (2.0mm x 2.5mm)
Ecliptek Corporation expanded its EMS MEMS spread spectrum low EMI output surface mount oscillator, theEMS4 series. The EMS4, in a miniature 2.0mm x 2.5mm package, reduces EMI at the clock source instead of locations later down the clock stream, potentially eliminating the use of supplemental shielding enclosures and/or filtering components. This greatly reduces system costs … [Read more...]
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