发明名称 |
Power circuit, power supply method, and electronic device |
摘要 |
A power circuit is provided so that a charge can be normally driven even during replacement of a first battery. This power circuit comprises: first and second batteries for driving a charge; a first battery voltage detection means; a first switch for controlling a second battery power supply path based on an output of the voltage detection means; an overcharge prevention means for preventing an overcharge for the secondary battery caused by the first battery; and a switch controlled by an output of the overcharge prevention means.
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申请公布号 |
US6603285(B2) |
申请公布日期 |
2003.08.05 |
申请号 |
US20010955256 |
申请日期 |
2001.09.18 |
申请人 |
SONY CORPORATION |
发明人 |
AOYAGI KOJI;ONOZUKA KUNIHARU |
分类号 |
G05F1/00;H02J7/00;H02J7/34;H02J9/00;H02J9/06;(IPC1-7):H02J7/00;H02H3/20 |
主分类号 |
G05F1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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