Treasures Ahead For Those Seeking Joules
May 1, 2006
Capacitors tend to advance slowly, but these improvements are significant nonetheless. This month's feature Overcoming PCMCIA Power Limits in Wireless...
Multi-Megahertz Switching Gains Momentum
Apr 1, 2006
Cellular phones and other portable applications continue to demand that voltage regulator designs fit into ever-smaller footprints. To satisfy this requirement...
Topology Selection By the Numbers Part Two
Apr 1, 2006
In this second part of a three-part series, we consider some of the alternatives to the bucks and boosts discussed in part one for nonisolated stepup and stepdown conversion for situations in which there may be better choices....
Optimizing Accuracy of Hysteretic Control
Feb 1, 2006
In voltage-mode, hysteretic-controlled dc-dc
converters, output capacitor-induced ripple and
loop delay are the key sources of error in output
voltage regulation....
New Products: February 2006
Feb 1, 2006
This issue of Power Electronics Technology features battery-charger ICs, rectifiers, thick film resistors and inductors...
Ultracapacitors Bring Portability to Power
Oct 1, 2005
Ultracapacitors can bring high power to portable applications, either in parallel with batteries or as a stand-alone source....
Then and Now
Sep 1, 2005
As we continue our Then and Now series, we once again will look at three products selected from a 1975 edition of Solid-State Power Conversion, the predecessor...
Top 10 Tidbits of Battery Wisdom
Jul 28, 2005
By avoiding common design errors, designers can extend the runtime of their battery-powered portable products....
Polymer Film Capacitors Deliver Proven Stability
May 1, 2005
POLYMER FILM CAPACITORS - techanical flexibility, the use of pure aluminum electrodes, immunity to aging and stable operating characteristics ensure the reliability of these capacitors in power applications....
Droop Compensation Versus Ideal Regulation
Nov 1, 2004
Advances in silicon technology have led to significantly faster processors, memory and switching logic. These high-performance semiconductor devices can...
A Backup Power System Using Ultracapacitors
Sep 1, 2004
Backup power systems are an integral part of most, if not all, mission-critical installations. Services as varied as data centers, communications networks...
Capacitor Ripple Current Improvements
Aug 1, 2004
The multiphase buck regulator topology allows a reduction in the size of the input and output capacitors versus single-phase designs. By quantifying the input and output currents, designers
can determine the requirements for the input and output capacitors....
Simple, Reliable EN-Compliant Power System
Jul 1, 2004
The recent amendment to EN61000-3-2 has restated the harmonic current limits required for compliance as applied to most professional and industrial equipment...
Ceramic Capacitors Aid High-Voltage Designs
May 1, 2004
Medium- and high-voltage capacitors find widespread use as snubbers or filters in applications, such as switching power supplies for audiovisual and business...
