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System for controlling voltage balancing in a plurality of lithium-ion cell battery packs and method thereof

  • US 7,638,973 B2
  • Filed: 12/22/2005
  • Issued: 12/29/2009
  • Est. Priority Date: 12/24/2004
  • Status: Active Grant
First Claim
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1. A system for adjusting a voltage balancing of cells in lithium ion multicell battery packs, the system comprising:

  • a vertical interface connected to a battery pack and configured to output synchronized inputs of a reading balance signal defining a voltage reading period and a balance period and a reading hold signal inducing each cell voltage to be held before the voltage reading period;

    an interface connected to the battery pack and configured to output an address clock for designating an address of a cell whose voltage is being held; and

    a control section of a cell balancing adjusting circuit connected to the vertical interface and the interface and configured to receive signal outputs therefrom to adjust a balancing of cells.

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