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SECONDARY BATTERY CONTROLLER AND METHOD FOR CONTROLLING SECONDARY BATTERY, AND ELECTRONIC APPARATUS

  • US 20110309681A1
  • Filed: 06/14/2011
  • Published: 12/22/2011
  • Est. Priority Date: 06/15/2010
  • Status: Active Grant
First Claim
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1. A secondary battery controller comprising:

  • a plurality of temperature detectors that detect temperatures of a plurality of secondary batteries having the same rating, respectively;

    a switching device that connects an output of any one of the plurality of secondary batteries to a load; and

    a control portion that selects which secondary battery to use from the plurality of secondary batteries and controls the switching device to switch between the secondary batteries based on temperature information of each of the plurality of secondary batteries obtained by the temperature detectors,wherein the control portion connects the selected secondary battery to the load, and then switches the secondary battery connected to the load to another non-selected secondary battery in sequence when the first selected secondary battery reaches a predetermined threshold temperature, and further reconnects the first selected secondary battery to the load when the last selected secondary battery reaches the threshold temperature after all the secondary batteries have been selected.

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