052_EETE

EETE JULAUG 2013

WHITE PAPERS ww.electronics-eetimes.com/en/Learning-center/ A leading reference resource for electronics engineers, EE Times Europe’s White Paper library includes over 600 white papers, application notes, technical articles, books and case studies that can be downloaded free of charge. The latest featured papers are available below. 16-Bit, 100 kSPS low power successive approximation ADC system This application note describes a 16- bit, 100 kSPS successive approximation analog-to-digital converter (ADC) system that has a drive amplifier that is optimized for a low system power dissipation of 7.35 mW for input signals up to 1 kHz and sampling rates of 100 kSPS.This approach is highly useful in portable battery powered or multichannel applications, or where power dissipation is critical. www.electronics-eetimes.com/en/Learning-center/ ZVS buck regulator removes barriers To increased power throughput The need for higher power density in today’s electronic systems combined with higher overall efficiency has driven many changes in the Non-isolated Point-of-Load Regulator (niPOL). While the solutions developed work well over a narrow voltage range, the efficiency and throughput power tend to drop dramatically when they are subjected to a wide input range. This paper looks at a new ZVS buck regulator topology. www.electronics-eetimes.com/en/Learning-center/ Supporting multicore SoCs in critical embedded systems for avionics, defense and transport Avionics, Defense and Transport, like all high-end processing application areas, are looking for ways to increase performance and at the same time reduce the existing form-factor and power budgets. If COTS multicore SoCs (System-on- Chip) stand as the common approach to meet these design goals today, their use in critical embedded systems introduces some new paradigms when considering key goals related to safety and certification. www.electronics-eetimes.com/en/Learning-center/ Leveraging high-volume CMOS manufacturing for MEMS-based frequency control Over the last five years, microelectromechanical systems (MEMS) solutions have steadily eroded the 100-year-old monopoly held by quartz crystal solutions for frequency control and timing products. MEMS technologies, originally designed around the promise of smaller form factors, have enabled significant additional advantages related to lead time, supply stability, product reliability, device size, and price and performance tradeoffs. www.electronics-eetimes.com/en/Learning-center/ Haswell - the 4th Generation Intel@ Core ™ processor platform This white paper discusses the implementation of Intel’s new generation Core Processor Platform in its series of Embedded boards available in most popular form factors and bus technologies. Benefits include lower power, higher speed, much better graphics, 6Gb/s SATA ports, as well as I/O flexibility allowing to set ports to USB 2.0 or 3.0 www.electronics-eetimes.com/en/Learning-center/ Lighting applications – lighting the way with LEDs LEDs are being rolled out as replacements for incandescent lighting throughout the world. The Chinese government has a very strong commitment to LEDs, especially in street lighting. In the U.S. and Canada, the LED market share of lighting is estimated at around 7 percent. LEDs offer many advantages that are compounded by the length of time they are used. Greg Quirk from Mouser Electronics gives an overview of this process in the different countries and introduces the role of OLEDs. www.electronics-eetimes.com/en/Learning-center/ Replacing the candle in the candelabra Two compact, efficient bulb-replacement design ideas. By moving to a buck boost topology, PI is able to achieve a combination of performance that has not been possible up to now. Previously if a design was required to deliver very high efficiency, a high output voltage was required. However, this concession to efficiency resulted in unacceptably low power factor and total harmonic distortion that made such solutions unusable for worldwide lighting applications. www.electronics-eetimes.com/en/Learning-center/ High voltage surge stoppers ensure reliable operation during power surges In automotive, industrial and avionic applications, high voltage power supply spikes with durations ranging from a few microseconds to hundreds of milliseconds are commonly encountered. The electronics within these systems must not only survive transient voltage spikes, but in many cases also operate reliably throughout the event. In systems where power is distributed over long wires, severe transients are generated by load steps (abrupt changes in load current). www.electronics-eetimes.com/en/Learning-center/ www.electronics-eetimes.com Electronic Engineering Times Europe July/August 2013 51


EETE JULAUG 2013
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