Circuits monitor and balance large lithium-ion batteries

by Daniel Gomez-Ibanez, Woods Hole Oceanographic Institution, Woods Hole, MA; Edited by Charles H Small and Fran Granville, EDN, Sep 03 2007

Focus:
For large Li-ion batteries with many cells, cell monitoring and balancing can be performed with a circuit based on the PIC16LF88 microcontroller

What you’ll learn:

• How to perform monitoring and cell balancing on series-connected cells in a large Li-ion battery

Notes:
"An EDN Design Idea. Since this article was published, Linear Technology introduced the LTC6802, a battery stack monitor IC that integrates monitoring and cell balancing for large-format Li-ion batteries. See,"Chip Cuts Battery Management Down to Size For Hybrid Vehicles" at http://powerelectronics.com/portable_power_management/news/linear_battery_management_chip_hybrid-1008/index.html .

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