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...]
AR RF Conducted Immunity Test System
Click Here to view "Rodger Gensel Presents the AR RF Conducted Immunity Test System ". To view other AR videos, visit the AR Information Resource Center on their website. … [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...]
Lost Booty for this Pirate
A New York man owes a forfeiture of $10,000 to the Federal Communications Commission for operating an unlicensed, pirate radio transmitter on the frequency of 90.9 MHz in Brooklyn, NY. According to the FCC Forfeiture Order issued by the Commission, Jean Idalbert “willfully and repeatedly violated Section 301 of the Communications Act of 1934 as amended.” Despite evidence … [Read more...]
- « Previous Page
- 1
- …
- 55
- 56
- 57
- 58
- 59
- …
- 69
- Next Page »