Battery Power - November 2011 - (Page 4)

editor’s choice Vishay Intertechnology, Inc. has released a powdered-iron-based, WPC (Wireless Power Consortium)-compliant wireless charging receiving coil optimized for use with or without an alignment magnet. Offering a durable construction and high permeability shielding, the IWAS-4832FF-50 provides high efficiency greater than 70 percent for the wireless charging of ≤ 5 W portable electronics. The Rx coil has been designed into a wireless power development kit. For wireless power base stations and receivers, the IWAS-4832FF-50’s highsaturation powdered iron is not affected by permanent locating magnets, and the device blocks charging flux from sensitive components or batteries. As an alternative to Ferrite-based solutions, which can saturate in the presence of a strong magnetic field, the IWAS-4832FF-50 offers a magnetic saturation of 50 percent at 4,000 gauss. The RoHS-compliant device features inductance of 9.7 microhenries at 200 kHz with a 5 percent inductance tolerance, DCR of 200 milliohms at 25°C, and Q of 30 min. at 200 kHz. The device features a lead length of 50 mm and tinned length of 10 mm. Samples and production quantities of the IWAS-4832FF-50 Rx coil are available now, with lead times of five to eight weeks. Vishay Intertechnology Introduces Powdered-Iron-Based Rx Coil for Wireless Charging Editor & Publisher • David Webster Director of Content • Shannon Given Associate Editors Nick Depperschmidt, Heather Krier News Editors • Jeremy Fleming, Jessi Albers, Sue Hannebrink, Laura Mayo, Scott Webster Manager of Administration Marsha Grillo Advertising, Sales and Marketing Jessi Albers, Director of Sales Jeremy Fleming, Account Executive Jennifer Graham, Marketing Assistant Julie Hammond, Production Manager Director of Support Services Marc Vang BATTERY POWER (ISSN #10923616) is published bi-monthly by Webcom Communications Corp., 7355 E. Orchard, #100 Greenwood Village, CO 80111. A U.S. subscription is $58.00/ year and $72.00/year elsewhere. Single copies are $20 plus shipping. Back issues are available. Payment must be made in U.S. funds to process the order. Direct all subscription inquiries, orders and address changes to Fulfillment Services. Reprints/Photocopies: For requests contact Webcom Communications at 720-528-3770. © Copyright 2011 Webcom Communications Corp. Material in this publication may not be reproduced in any form without written permission. Requests for permission should be directed to the customer service manager. NASA has selected two game-changing space technology projects for development. The selections are part of the agency’s efforts to pursue revolutionary technology required for future missions, while proving the capabilities and lowering the cost of government and commercial space activities. “NASA’s Game Changing Technology Development program uses a rolling selection process to mature new, potentially transformative technologies from low to moderate technology readiness levels, from the edge of reality to a test article ready for the rigors of the lab,” said Space Technology director Michael Gazarik at NASA. “These two new projects are just the beginning. Space Technology is making investments in critical technology areas that will enable NASA’s future missions, while benefiting the American aerospace community.” The “Ride the Light” concept seeks to provide external power on demand for aerospace vehicles and other applications. The concept uses beamed power and propulsion produced by commercially available power sources such as lasers and microwave energy. The project will attempt to develop a low-cost, modular power beaming capability and explore multiple technologies to function as receiving elements of the beamed power. This combination of technologies could be applied to space propulsion, performance and endurance of unpiloted aerial vehicles or ground-to-ground power beaming applications. Development of such capabilities fulfills NASA’s strategic goal of developing high payoff technology and enabling missions otherwise unachievable with today’s technology. NASA has awarded approximately $3 million for concept studies to multiple companies during this first phase of the Ride the Light project. Following these studies, NASA expects to make an implementation decision in 2013. NASA also has selected Amprius, Inc. of Menlo Park, Calif., to pursue development of a prototype battery that could be used for future agency missions. Amprius is teaming with JPL and NASA’s Glenn Research Center in Cleveland on the project, with an estimated value of $710,000 for one year of development. The Amprius project will focus on the material optimization of silicon anodes and electrolyte formulation to meet the agency’s low-temperature energy requirements. Amprius developed a unique ultra-high capacity silicon anode for lithium ion batteries that will NASA Announces Two Game-Changing Space Technology Projects Webcom Communications Corp. 7355 E. Orchard Rd., Suite 100 Greenwood Village, CO 80111 Phone 720-528-3770 Fax 720-528-3771 www.BatteryPowerOnline.com Office hours: 7 a.m. to 5 p.m. MST 4 Battery Power • November/December www.BatteryPowerOnline.com http://www.BatteryPowerOnline.com http://www.BatteryPowerOnline.com

Table of Contents for the Digital Edition of Battery Power - November 2011

Battery Power - November/December 2011
Contents
Vishay Intertechnology Introduces Powdered-Iron- Based Rx Coil for Wireless Charging
GenSet Eliminator, Designed to Reduce Fuel Consumption and Promote Safety.
The Challenges of Manufacturing Lithium-Ion Batteries for the Electric Vehicle Industry
Considerations for Customized Battery Packs
Efficient Power Protection Means Less Cost, Not Less Reliability
Safety and Preventing Thermal Run Away in Large Li-Ion Batteries
ZigBee Resource Guide
Batteries
Charging & Testing
ICs and Semiconductors
Components
Power Supplies
Industry News
Research & Development
Marketplace
Calendar of Events

Battery Power - November 2011