Proper Care Extends Li-Ion Battery Life
Apr 1, 2008
Li-ion battery lifetime depends on battery chemistry, depth of discharge, battery temperature and battery capacity termination level...
Spotlight on Battery-Charger ICs
Oct 1, 2007
Li-Ion/Li-Polymer Chargers Microchip Technology's MCP73837 and MCP73838 dual-input, high-current Li-ion/Li-polymer charge-management controllers feature...
Direct Battery Connection Benefits Portable Designs
Jul 1, 2007
Directly connecting the battery and load in a portable device improves reliability and reduces cost with only a minor increase in charging time.
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Single-Cell Li-Ion Chargers Get Smaller and Smarter
Apr 1, 2007
As the number of portable devices powered by a single Li-ion or Li-polymer cell continues to grow, semiconductor vendors maintain their quest to develop ever-more compact and robust battery-charger circuits....
Discrete Circuit Protects Li-Ion Battery Charger
Mar 1, 2007
Many battery-powered applications use diodes for reverse-battery protection. However, a diode does not always protect a battery charger when the battery is inserted incorrectly. Sometimes when the battery is inserted backwards, it can cause a large amount of current flow through the charging circuitry, potentially destroying both the battery and the charger. ...
Portable Power Management Inspires Mega Integration
Jun 1, 2006
As designers of handheld devices pack greater functionality into their products, requirements for power management have become increasingly complex. Products...
PEM Fuel Cells Emerge from Niche Markets
May 1, 2006
Fuel cell technology has received a great deal of attention as a vital component in the highly anticipated, though as of yet postponed, emergence of the...
New Products
May 1, 2006
PWM Controller The IR3624 from International Rectifier is a 600-kHz single-phase synchronous buck PWM controller IC designed for high-density, 10-A nonisolated...
New Products: February 2006
Feb 1, 2006
This issue of Power Electronics Technology features battery-charger ICs, rectifiers, thick film resistors and inductors...
Data Points
Feb 1, 2006
IPD Enables Compact Automotive ECUs The uPD166007 intelligent power device (IPD) from NEC Electronics America offers a solid-state alternative to the...
Determining Power Dissipation Range of Charger IC
Nov 1, 2005
Today, many portable applications come equipped with Li-ion and Li-polymer batteries, since they provide a very high-energy density relative to their...
Smart batteries gaining acceptance
Apr 27, 2005
Smart batteries are a topic of growing interest in myriad industries, including automotive, according to Frost & Sullivan Technical Insights research analyst Kasturi Nadkarny.
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Chip Makers Hear the Li-ion's Roar
Sep 1, 2004
Demand for power in portable electronics continues to grow as portable devices become more sophisticated. However, rechargeable batteries the traditional...
