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Productive Vietnam-U.S. Energy Efficiency Conference Wraps Up

 

Our colleagues at American TCB, whose Mike Violette has shared his travel experiences with eNews readers in several previous editions, have forwarded word of successful sessions held in Hanoi and Ho Chi Minh City. Organized by American TCB, Washington Labs, Ltd. and Rheintech Laboratories, this conference brought together a multi-national group to address the energy issues … [Read more...]

Vishay Launches Tender Offer for Outstanding Shares of International Rectifier

 

Component manufacturer Vishay Intertechnology has announced that a wholly-owned subsidiary has commenced a tender offer to acquire all of the outstanding shares of common stock of International Rectifier Corporation for $23 per share in cash. Vishay was not successful in persuading the Board of International Rectifier to agree to the business combination that Vishay … [Read more...]

Vishay Launches Tender Offer for Outstanding Shares of International Rectifier

 

Component manufacturer Vishay Intertechnology has announced that a wholly-owned subsidiary has commenced a tender offer to acquire all of the outstanding shares of common stock of International Rectifier Corporation for $23 per share in cash. Vishay was not successful in persuading the Board of International Rectifier to agree to the business combination that Vishay … [Read more...]

Colorado DOT Will Use EM-Based Technology to Reduce Elk-Car Collisions

 

This week, the Colorado Department of Transportation (DOT) launched a new wildlife detection system along a stretch of U.S. 160 east of Durango in southwestern Colorado, an area where officials indicate that 70 percent of all reported collisions involve wild animals. Fencing was ruled out as a viable option, and lasers or microwaves were too easily triggered by motion from snow … [Read more...]

China Merges Four Certification Bodies into One Entity

 

The Certification and Accreditation Administration of the People’s Republic of China (CNCA) has announced that four certification bodies that could certify electronics as qualifying for the all important CCC mark have now been merged into one certification body. The CCC is the vital “stamp of approval” that allows products into the burgeoning Chinese marketplace. Specifically, … [Read more...]

Meeting Military Requirements for EMC and Transient Voltage Spike Suppression

 

The basics of EMI and transient compliance for military systems using SMPSs are covered. Dr. Glenn Skutt, VPT, Inc., Blacksburg, Virginia, USA THE EMI AND VOLTAGE TRANSIENT CHALLENGE Military and aerospace engineers face several challenges with respect to electromagnetic interference (EMI) and transient voltage compliance. The standards developed by the various military … [Read more...]

Inrush Current in DC-DC Converters

 

Some applications may require limiting the inrush spike into the input capacitors. Steve Butler and Jeremy Ferrell, VPT, Inc., Blacksburg, Virginia, USA BACKGROUND Inrush current is the spike of current drawn by a power supply when it is turned on. A typical power system is shown in Figure 1. The input EMI filter will include some capacitance connected across the input … [Read more...]

Russian Scientist to Receive Prestigious Prize in Electromagnetic Science

 

Scientific and business media firm Springer has announced that a member of its editorial board Alexander G. Litvak will receive the 2008 Kenneth J. Button Prize, which is administered by the Institute of Physics in London. This award is based on his outstanding contributions to research on plasma physics and the generation and amplification of coherent millimeter wave, … [Read more...]

Solving the Galvanic Corrosion Issue in EMI Shielding

 

Tungsten carbide/aluminum composite particles inhibit galvanic corrosion of aluminum. Harry Fuerhaupter, Potters Industries, Inc. ABSTRACT An ongoing issue in the design of reliable EMC shielding is galvanic corrosion of aluminum. How can an aluminum frame be protected from galvanic corrosion if it contacts an EMI gasket containing non-aluminum particles? Chromate conversion … [Read more...]

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