Stacked-Ceramic Caps Brave High Temperatures
Aug 1, 2007
A series of stacked-ceramic capacitors specially designed for SMPSs features the thermal performance of conventional
ceramics without their mechanical drawbacks, enabling
higher reliability and operating temperatures....
Ultracapacitor Options (and Ways to Charge Them) Grow
Jun 1, 2007
Because their voltage ratings are low, ultra-capacitor cells are frequently combined into modules or packs where they are series connected to handle higher voltages. However, ultracapacitor manufacturers are working to develop ultracapacitor cells with higher voltage ratings to reduce the number of cells required for a given voltage rating....
Ultracapacitor Modules Empower Heavy Hybrid And Electric Vehicles
Jan 3, 2007
Maxwell Technologies has developed 125-V ultracapacitor modules that can provide energy storage and power delivery in heavy-duty hybrid vehicles, electric vehicles, and industrial equipment....
Ultracapacitors Market to Reach $560 Million in 2011
Oct 1, 2006
The ultracapacitors, or supercapacitors, market is expected to see continued growth during 2006 to 2011, forecasts Innovative Research and Products (iRAP;...
Ultracapacitors Boost Battery in Power Tools
Oct 1, 2006
In portable applications where battery life is important, designers may evaluate various battery chemistries to determine the best energy source. For...
Supercapacitors Can Challenge Tantalums on ESR
Jul 1, 2006
Advances in capacitor technologies may not be heralded the way semiconductor developments are, but these passive components are continually evolving nonetheless....
Calculating Essential Charge-Pump Parameters
Jul 1, 2006
Analysis of a basic charge-pump yields a model that accurately preducts performance under a range of operating conditions, while illustrating a general approach to modeling other power-supply circuits....
Wind Will Power Component Development Too
Jul 1, 2006
The demand for alternative energy sources is making an impact on the power electronics industry, spurring development at both the system and component levels....
Buck-Converter Design Demystified
Jun 1, 2006
Stepdown (buck) switching converters are integral to modern electronics. They can convert a voltage source (typically 8 V to 25 V) into a lower regulated...
New Products
Jun 1, 2006
Web-Based Simulator Microchip Technology's Mindi is a web-based simulation tool that aids in the design of several circuits useful for power-management...
Overcoming PCMCIA Power Limits in Modem Designs
May 1, 2006
Demand for wireless network access to support mobile computing requirements is growing at a rapid pace. As a result, the Global System for Mobile Communication...
Topology Selection by the Numbers Part Three
May 1, 2006
In parts one and two of this article series, the component stress factor (CSF) method was defined and some examples of how to use it were given, concentrating...
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...
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....
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...
