The quest for high efficiency in low-voltage supplies By Bill Travis, Senior Technical Editor
A new generation of synchronous-rectifier MOSFETs and dc/dc-converter ICs make it possible to achieve high efficiency in low-voltage power supplies.
From EDN Europe: WAP stimulates third-generation mobile telephony
By David Marsh, Contributing Technical Editor
With market penetration of more than 70% in some European countries, the mobile-phone phenomenon is today's number one consumer-electronics success story. What will the service providers do to maintain and stimulate their market share, and how will future developments affect design engineers?
Design Features
A digital picture is worth... By Warren Webb, Technical Editor
With the prices of specialized components and high-powered processors plunging, digital imaging may be destined for your next project. Master the techniques you need to capture, compress, and store electronic pictures.
Voice quality in converging telephony and IP networks Stefan Pracht and Dennis Hardman, Agilent Technologies
The emergence of VoP technologies complicates the issue of voice quality. A user''s perception of quality depends on three factors that share a complex relationship and have their own unique testing methods: clarity, end-to-end delay, and echo.
Power-supply sequencing for low-voltage processors Brian Rush, Texas Instruments
Today's most advanced low-voltage microprocessors, DSPs, and PLDs use two power supplies of different voltages to significantly reduce power requirements. Proper sequencing can mean the difference between dual supplies and dueling supplies, with system reliability hanging in the balance.
EMI and circuit components: Where the rubber meets the road Daryl Gerke and William Kimmel, Kimmel Gerke Associates
You need to know how components behave in the real world and what their limitations mean in terms of EMI. Some guidelines in proper component selection for EMI and in designing simple EMI filters will help in the battle.
DWDM: feeding our insatiable appetite for bandwidth By Nicholas Cravotta, Technical Editor
Once upon a time, engineers feared the day when they would tap out the bandwidth potential of fiber. DWDM puts those fears to rest for now.
