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AssigneeResearch In Motion Limited
InventorsAndrew D. Shiner, Carl D. Schaaff, Richard C. Madter, Roshy Stan Mathew, Michael F. Habicher, Quang A. Luong
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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
An over-voltage protection circuit for connection to a charging circuit for maintaining a voltage across an energy storage device at or below a predetermined voltage during charging, comprising:
An over-voltage protection circuit for connection to a charging circuit for use with a handheld device for maintaining a voltage across an energy storage device at or below a predetermined voltage so as to avoid over-voltage during charging, comprising:
Dependencies are inferred from the claim text.