The Open Door
Impact of RoHS on Materials and Parts Availability
by Tim McGrady, principal scientist, IMR Test Labs
Recent regulations such as the European Union Directive 2002/95/EC on the Restriction of Certain Hazardous Substances in Electrical and Electronic Equipment (RoHS) have increased the limitations on material use.
International Appliance Technical Conference 2005
Engineering for the World
by Lisa Bonnema, Editor
The “I” in IATC wasn’t lost on those attending the 2005 International Appliance Technical Conference. From Chinese outsourcing to Canadian legislation, this year’s engineering conference looked at technology from a global perspective.
Blue LED Displays
Kingbright has developed a Dual Blue SMD LED display that is said to offer additional flexibility in sizes and color, higher reliability, improved efficiency, and significant cost reduction to the production phase.
Using brushless d.c. (BLDC) technology and on-board electronics, A.O. Smith of Tipp City, OH, U.S. was able to create a high-efficiency motor to help manufacturers meet air-conditioner efficiency standards.
The Basics of Brushless Motor Drive Design
by Dal Y. Ohm, consultant, Drivetech, Inc.
Due to the increasing demand for compact and reliable motors and the evolution of low-cost power semiconductor switches and permanent magnet (PM) materials, brushless motors are widely used in every application from home appliances to the aerospace industry.
A Sound Investment
by Jill Russell, Associate Editor
A digital sound recording feature recently entered the consumer electronics arena when Mitsubishi Digital Electronic America Inc. introduced its new high-definition television with a built-in digital video recorder.