Cell balance control device that prevents temperature increase of bypass circuit substrate
AssigneeKeihin Corporation
InventorsSeiji Kamata, Eishin Matsumoto
Life of this patent
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Abstract
What is provided is a cell balance control device including: a bypass circuit including a direct circuit with a bypass resistance and a switching element, the bypass circuit being connected in parallel to each of a plurality of cells included in a battery; a cell voltage detection unit detecting a cell voltage of each of the plurality of cells; a temperature detection unit detecting a temperature of a substrate on which the bypass circuit is mounted; and a control unit controlling and computing a duty ratio of the switching element based on a value detected by the temperature detection unit and a cell voltage of a discharge-needed cell obtained by the cell voltage detection unit.
Claims6
A cell balance control device comprising:
- a plurality of bypass circuits, the bypass circuit comprising a direct circuit with a bypass resistance and a switching element, the plurality of bypass circuits being connected in parallel to each of a plurality of cells comprised in a battery;
- a cell voltage detection unit detecting a cell voltage of each of the plurality of cells;
- a temperature detection unit detecting a temperature of a substrate on which the bypass circuit is mounted;
- and
- a control unit controlling and computing a duty ratio of the switching element based on a value detected by the temperature detection unit and a cell voltage of a discharge-needed cell obtained by the cell voltage detection unit.
Dependencies are inferred from the claim text.