SMPS Design Extends Universal Input to 690 Vac
Oct 1, 2007
A quasi-resonant flyback converter uses high-voltage emitter-switched bipolar transistors to achieve the wide inputvoltage range needed to power digital electric-energy meters in both residential and industrial applications.
...
Control Intelligence Improves Renewable Energy Efficiency
Sep 1, 2007
Building on the success of fixed-point architectures,
floating-point digital signal controllers enable
implementation of more complex control algorithms in
power inverters for solar- and wind-powered systems....
Forward-Converter Design Leverages Clever Magnetics
Aug 1, 2007
A synchronous rectified forward converter optimized
for performance and cost uses coupled inductors
for output filtering and transformer-based gate drive....
Better Power Packages Make Better Circuits
May 1, 2007
Advanced power packages are breaking barriers that affect
dc, ac and thermal performance in switch-mode power supply
circuits for a broad range of applications.
...
Radical Redesign Nears for Battery Chargers
Apr 1, 2007
As new markets for energy-efficient battery chargers
emerge, designers can take advantage of techniques
for testing and improving charger efficiency....
Control Technique Cuts Flyback Input Capacitance
Apr 1, 2007
For flyback power supplies that need long holdup times, a
technique called on-time extension maintains regulation
with less bulk input capacitance than would be required with conventional, fixed-frequency control....
Waveform Scanning Solves Power-Design Challenges
Mar 1, 2007
The comprehensive analysis of basic switch-mode powersupply
functions enabled by oscilloscope feature sets can
close the loop for power-supply development....
A Guide to Designing Gate-Drive Transformers
Jan 1, 2007
A step-by-step procedure optimizes the mechanical, thermal and electrical parameters of the transformers to suit switch-mode power-supply applications....
SiC Technology Enables Discrete Revolutions
Nov 1, 2006
While silicon carbide (SiC) was once well known as the technology used to implement the first blue light-emitting diodes (LEDs), and is now used as a...
DSCs Ease Migration to Digital Loop Control
Nov 1, 2006
Armed with high execution rates and power peripherals, digital signal controllers provide
the functionality needed in power-supply designs but don’t require DSP programming....
Energy Experts Weigh In On Conservation
Nov 1, 2006
Attendees at the recent Power Electronics Technology Conference in Long Beach, Calif., heard two compelling presentations on the subject of energy efficiency....
Taiwan Continues to Dominate Adapter, Charger Market
Oct 1, 2006
Taiwanese companies continue to lead the global market for external adapters and chargers, according to the latest data from IMS Research (Wellingborough,...
