发明名称 |
Over-voltage protection circuit |
摘要 |
An over-voltage protection circuit is disclosed herein for protection against over-voltage of an energy storage device while charging. The circuit operates within the operational limits of a battery-operated device, such as a mobile or handheld device. The over-voltage protection circuit comprises an over-voltage protection device, and an over-voltage protection controller. The controller allows current to flow to the over-voltage protection device only when an energy storage device is experiencing over-voltage. In allowing current to flow to the over-voltage protection device only when the voltage across the energy storage device is above a predetermined voltage, power conservation is achieved.
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申请公布号 |
US8363370(B2) |
申请公布日期 |
2013.01.29 |
申请号 |
US201113280554 |
申请日期 |
2011.10.25 |
申请人 |
RESEARCH IN MOTION LIMITED;SHINER ANDREW D.;SCHAAFF CARL D.;MADTER RICHARD C.;MATHEW ROSHY STAN;HABICHER MICHAEL F.;LUONG QUANG A. |
发明人 |
SHINER ANDREW D.;SCHAAFF CARL D.;MADTER RICHARD C.;MATHEW ROSHY STAN;HABICHER MICHAEL F.;LUONG QUANG A. |
分类号 |
H02H3/20;H01H47/00;H01H47/32;H02H7/18;H02H9/04;H02J7/00 |
主分类号 |
H02H3/20 |
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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