| 摘要 |
PURPOSE: A battery pack and a controlling method of charging the same are provided to selective perform contactless charge and wired charge by additionally controlling a contactless charge circuit. CONSTITUTION: In a battery pack and a controlling method of charging the same, a first charger circuit(20) wirelessly charges a battery cell(10). The first charger circuit comprises a current drain circuit and a rectifier circuit An induction current circuit generates an induction current through external magnetism. The rectifier circuit rectifies the induction current. . A terminal(30) is connected to an external device. A second charger circuit(40) charges a battery cell by using the electricity from an external power supply. A control circuit controls charging of the second charger circuit and the first charger circuit.
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