发明名称 |
Battery pack providing stable voltage |
摘要 |
A battery pack (4) comprises a stack of lithium solid state cells (1) and a DC/DC converter (2) in a housing (3), for use in supplying current to an electronic apparatus, e.g. a portable telephone. This provides a stable voltage for operating the electronic apparatus as the cells become progressively more discharged without having to include a DC/DC converter in the apparatus itself. The battery pack (4) can be arranged to supply current directly from the cells (1) as well as via the DC/DC converter (2), and the DC/DC converter (2) can be made voltage controllable to supply different voltages depending upon requirements. Conductive screening around the battery pack can be provided to prevent electromagnetic interference from the DC/DC converter (2). <IMAGE> |
申请公布号 |
GB2270793(A) |
申请公布日期 |
1994.03.23 |
申请号 |
GB19920019922 |
申请日期 |
1992.09.21 |
申请人 |
* NOKIA MOBILE PHONES R&D;* NOKIA MOBILE PHONES LIMITED |
发明人 |
PETER * KARSTEN;STEPHEN * RADLEY;GUY * HOOKER |
分类号 |
H01M2/10;H01M10/42;H02J7/00;(IPC1-7):H01M10/44 |
主分类号 |
H01M2/10 |
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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