BATTERY MANAGEMENT CIRCUIT, BATTERY MODULE AND BATTERY MANAGEMENT METHOD
First Claim
1. A battery management circuit suitable for a rechargeable battery, comprising:
- a conduction circuit coupled to the rechargeable battery, the conduction circuit having a first conduction path passing through the rechargeable battery and a second conduction path without passing through the rechargeable battery; and
a control circuit coupled to the rechargeable battery and the conduction circuit for selectively conducting the first conduction path or the second conduction path of the conduction circuit according to a battery voltage of the rechargeable battery.
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Abstract
A battery management circuit, a battery module and a battery management method are provided. The battery management circuit includes a conduction circuit and a control circuit. The battery management is coupled to a rechargeable battery cell and has a first conduction path passing through the rechargeable battery cell and a second conduction path without passing through the rechargeable battery cell. The control circuit is coupled to the rechargeable battery cell and the conduction circuit, and conducts selectively the first conduction path or the second conduction path of the conduction circuit so as to avoid over charging or over discharging of the rechargeable battery cell.
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Citations
13 Claims
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1. A battery management circuit suitable for a rechargeable battery, comprising:
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a conduction circuit coupled to the rechargeable battery, the conduction circuit having a first conduction path passing through the rechargeable battery and a second conduction path without passing through the rechargeable battery; and a control circuit coupled to the rechargeable battery and the conduction circuit for selectively conducting the first conduction path or the second conduction path of the conduction circuit according to a battery voltage of the rechargeable battery. - View Dependent Claims (2, 3, 4)
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5. A battery module, comprising:
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a plurality of power units, each power unit having a rechargeable battery; and a array controller having a plurality of channels coupled to the power units respectively, the array controller respectively detecting the states of charge of the rechargeable batteries through the channels and respectively controlling the charge/discharge paths of the rechargeable battery according to the states of charge of the rechargeable batteries. - View Dependent Claims (6, 7, 8, 9)
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10. A battery module, comprising:
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a plurality of battery sets, each battery set having a plurality of rechargeable batteries; a backup battery set having a plurality of rechargeable batteries; a power path circuit coupled to the battery sets and the backup battery set for switching conduction paths of the battery sets and the backup battery set; a voltage sensing unit coupled to the power path circuit for sensing whether the battery voltages of the battery sets are normal; and a controller coupled to the voltage sensing unit and the power path circuit; wherein the controller determines whether the battery sets are damaged according to a sense result from the voltage sensing unit, when one of the battery sets is damaged, the controller adjusts the conduction paths of the battery sets and the backup battery set through the power path circuit to replace the damaged battery set with the backup battery set.
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11. A battery management method, comprising:
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a. providing a plurality of channels respectively coupled to a plurality of power units, each power unit having a rechargeable battery; b. respectively detecting states of charge of the rechargeable batteries through the channels; and c. respectively controlling the charge/discharge paths of the rechargeable batteries according to the states of charge of the rechargeable batteries. - View Dependent Claims (12, 13)
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Specification