Design Con 2015
Breaking News

High Efficiency Bidirectional Cell Balancer Maximizes Capacity and Lifetime of Series Connected Battery Stacks

Large, series connected strings of batteries are commonly used in electric vehicles, backup power systems and a wide variety energy storage applications. Maximizing the lifetime and ensuring safe usage of such battery stacks requires accurate measurement and balancing of each cells’ state of charge (SoC). Passive, or dissipative, balancing can correct for SoC mismatch due to temperature gradients or cell to cell impedance differences throughout the pack. However, passive balancing cannot compensate for capacity differences that result from cell aging. Cell aging occurs in all cells and occurs at different rates due to the same factors that cause SoC mismatch. Without capacity compensation, the runtime of the battery is limited by the lowest capacity cell in the stack. Active balancers such as the LTC3300 have the ability to correct for SoC imbalance as well as compensate for cell to cell capacity differences. By efficiently redistributing charge from mismatched cells, the LTC3300 maximizes the useable capacity of the battery stack. The LTC3300 provides high current, high efficiency bi-directional cell balancing for series connected batteries. Each IC can simultaneously charge or discharge up to 6 series cells. There is no limit to the height of the stack. Balancer to balancer communication is achieved through a high noise margin SPI bus, and numerous safety features ensure reliable, efficient, high current active balancing.
NO RATINGS
3/12/2013 04:10 PM EDT | Post a comment
Related Videos
Linear Technology
This video explores the LT3086, a new member of our LDO+ ...
In today’s modern electronic systems, the need for power ...
Differential op amps are important building blocks in ...
Wireless sensor networks in general have a wide array of ...
11:42
LDO+ regulators do more than just regulate. They include ...
Bandwidth has become more precious than gold. As we push ...
The digital power supply market has achieved rapid progress ...
Linear Technology’s LTM®4620 uses a proprietary lead frame ...
Pulsed loading conditions and abnormal disturbances within ...
With the increased-use of electronics in automotive and ...
Linear Technology’s LT®3970/LT3971 lead the industry in ...
The LTC3639 step-down regulator integrates key high ...
Flash Poll
Top Comments of the Week
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

DIY Practical Joke Project Idea
Max Maxfield
Post a comment
I just received a rather interesting email from a member of the EETimes community who prefers to remain anonymous. This message was as follows:

Jolt Judges and Andrew Binstock

Jolt Awards: The Best Books
Jolt Judges and Andrew Binstock
1 Comment
As we do every year, Dr. Dobb's recognizes the best books of the last 12 months via the Jolt Awards -- our cycle of product awards given out every two months in each of six categories. No ...

Engineering Investigations

Air Conditioner Falls From Window, Still Works
Engineering Investigations
2 comments
It's autumn in New England. The leaves are turning to red, orange, and gold, my roses are in their second bloom, and it's time to remove the air conditioner from the window. On September ...

David Blaza

The Other Tesla
David Blaza
5 comments
I find myself going to Kickstarter and Indiegogo on a regular basis these days because they have become real innovation marketplaces. As far as I'm concerned, this is where a lot of cool ...