Charging device and method thereof
AssigneeGetac Technology Corporation
InventorChen-Fu HUANG
Life of this patent
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Abstract
A charging method includes: measuring a plurality of battery voltages of a plurality of batteries through a plurality of switch modules sequentially, switching on the switch module coupled to the battery with the lowest battery voltage to cause the battery with the lowest battery voltage to electrically connect to a charging unit, enabling the charging unit to supply power, and switching on the switch module corresponding to an attained battery voltage whenever the battery with the lowest battery voltage is charged to attain the battery voltage of one of the batteries.
Claims10
A charging method, comprising the steps of:
- measuring a plurality of battery voltages of a plurality of batteries through a plurality of switch modules sequentially, with the switch modules coupled between a charging unit and the batteries and adapted to change an electrical connection between the charging unit and each said battery;
- switching on the switch module coupled to the battery with a lowest battery voltage, the battery being one of the batteries, to cause the battery with the lowest battery voltage to electrically connect to the charging unit;
- enabling the charging unit to supply power;
- and
- switching on the switch module corresponding to an attained battery voltage whenever the battery with the lowest battery voltage is charged to attain the battery voltage of one of the batteries.
A charging device, comprising:
- a port coupled to a plurality of batteries;
- a charging unit;
- a plurality of switch modules coupled between the port and the charging unit and adapted to change an electrical connection between the charging unit and each said battery;
- and
- a processing unit for measuring a plurality of battery voltages of the batteries sequentially through the switch modules, switching on the switch module coupled to the battery with a lowest battery voltage so as to instruct the battery with the lowest battery voltage to electrically connect to the charging unit, enabling the charging unit to supply power, and switching on the switch module corresponding to an attained battery voltage whenever the battery with the lowest battery voltage is charged to attain the battery voltage of one of the batteries.
Dependencies are inferred from the claim text.