发明名称 |
PORTABLE ELECTRONIC DEVICE WITH IMPROVED METHOD OF SUPPLYING CURRENT TO DIFFERENT LOAD CIRCUITS |
摘要 |
According to a first aspect of the invention, a portable electronic device has at least two load circuits which are independently powered by different batteries. According to a second aspect of the invention, the load circuits are powered by the same battery, but their power lines are branched from a node located close to the battery, thereby reducing common impedance. According to a third aspect of the invention, two power lines are coupled through switches to two independent batteries, and are mutually coupled through a third switch. The switches are controlled according to the discharge states of the batteries. According to a fourth aspect of the invention, a battery charger charges two or more batteries by supplying current to them for short intervals in turn, so that all batteries reach full charge at substantially the same time.
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申请公布号 |
CA2149204(A1) |
申请公布日期 |
1995.11.13 |
申请号 |
CA19952149204 |
申请日期 |
1995.05.11 |
申请人 |
OKI ELECTRIC INDUSTRY CO., LTD. |
发明人 |
NAKANISHI, EIICHI;ONODERA, TETSUO |
分类号 |
H04B1/40;H02J7/00;H04B1/16;H04B1/44;H04B1/56;H04B7/26;H04M1/00;(IPC1-7):H02J7/10 |
主分类号 |
H04B1/40 |
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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