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February 12, 2013
08:35 EDTOIIMO2Micro receives patent for cell balancing system
O2Micro announced that it was issued 20 claims under U.S. patent number 8,294,421 for its Cell Balancing system. This system balances battery cells in a battery pack to keep the battery cells in a desired range of voltages using active components. Such active battery cell balancing achieves higher efficiency by transferring energy rather than the conventional energy dissipation method.
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December 17, 2014
08:40 EDTOIIMO2Micro awarded U.S. patent for BMS with Vertical Bus Circuits
O2Micro was granted a U.S. patent for its Battery Management Systems, or BM, with Vertical Bus Circuits. A BMS monitors battery modules to ensure safe operation and to maximize capacity and battery cycle life via connection to a host microprocessor. Vertical bus circuits enable the host processor to communicate with the battery management chips in a BMS. This invention, issued 24 claims under U.S. patent number 8,907,625, ensures an efficient BMS with low operating power consumption and system costs.

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