Apparatus for balancing battery power
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United States of America Patent
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Jul 17, 2018
Grant Date -
Mar 30, 2017
app pub date -
Sep 12, 2016
filing date -
Sep 30, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
An apparatus for balancing battery power can include: a battery selection circuit coupled to N batteries, where the battery selection circuit is configured to couple one of the N batteries to a charge and discharge port, where N is an integer greater than 1; a bi-directional power converter having a first terminal coupled to the charge and discharge port, and a second terminal coupled to a storage capacitor; N detection circuits corresponding to the N batteries, where each of the N detection circuits is configured to detect a state of a corresponding of the N batteries; and a control circuit configured to control the battery selection circuit to couple a selected battery to the charge and discharge port, and to charge or discharge the selected battery through the bi-directional power converter to maintain a voltage of the storage capacitor to be within a predetermined range.
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