发明名称 |
Protection device for secondary batteries, and battery pack and electronic equipment employing same |
摘要 |
A protection device includes a voltage detector having N or more sub-circuits each for monitoring a specific battery cell to output a detection signal when at least one of the battery cells outputs an abnormal voltage. Each sub-circuit includes voltage dividing resistors, a reference voltage generator, and a comparator. The voltage dividing resistors generate a voltage division signal by dividing an output voltage of the battery cell. The reference voltage generator generates a reference voltage. The comparator compares the voltage division signal against the reference voltage. Each comparator is powered with voltage across the battery cell associated with the sub-circuit.
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申请公布号 |
US8471526(B2) |
申请公布日期 |
2013.06.25 |
申请号 |
US20100725778 |
申请日期 |
2010.03.17 |
申请人 |
KANNO JUNICHI;RICOH COMPANY, LTD. |
发明人 |
KANNO JUNICHI |
分类号 |
H02J3/36;H02J7/00 |
主分类号 |
H02J3/36 |
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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