Control device and method and power supply device
AssigneeSony Corporation
InventorsKazuharu Yanagihara, Akira Sanpei
Life of this patent
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Abstract
A control device includes a controller causing a plurality of cell blocks each configured of one or plurality of secondary battery cells and connected in series to be charged with a cell balance, and the controller includes a detector detecting a voltage of each of the cell blocks, an updater sequentially updating a maximum voltage of the detected voltage of each of the cell blocks, and a discharger discharging a cell block among the plurality of cell blocks, the cell block with a voltage range between the detected voltage and the updated maximum voltage within a discharge target voltage range defined in advance.
Claims6
A control device comprising a controller causing a plurality of cell blocks each configured of one or plurality of secondary battery cells and connected in series to be charged with a cell balance;
- wherein
- the controller includes
- a detector detecting a voltage of each of the cell blocks,
- an updater sequentially updating a maximum voltage of the detected voltage of each of the cell blocks, and
- a discharger discharging a cell block among the plurality of cell blocks, the cell block with a voltage range between the detected voltage and the updated maximum voltage within a discharge target voltage range defined in advance.
A control method of a control device including a controller causing a plurality of cell blocks each configured of one or plurality of secondary battery cells and connected in series to be charged with a cell balance;
- wherein
- the controller detects a voltage of each of the cell blocks,
- sequentially updates a maximum voltage of the detected voltage of each of the cell blocks, and
- discharges a cell block among the plurality of cell blocks, the cell block with a voltage range between the detected voltage and the updated maximum voltage within a discharge target voltage range defined in advance.
A power supply device comprising:
- a plurality of cell blocks each configured of one or plurality of secondary battery cells and connected in series;
- charging means for charging the plurality of cell blocks;
- and
- control means for causing the plurality of cell blocks to be charged with a cell balance;
- wherein
- the control means includes
- detecting means for detecting a voltage of each of the cell blocks,
- updating means for sequentially updating a maximum voltage of the detected voltage of each of the cell blocks, and
- discharging means for discharging a cell block among the plurality of cell blocks, the cell block with a voltage range between the detected voltage and the updated maximum voltage within a discharge target voltage range defined in advance.
Dependencies are inferred from the claim text.