Over-voltage protection circuit

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 a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Shiner, Andrew D, Schaaff, Carl D, Madter, Richard C, Mathew, Roshy Stan, Habicher, Michael F, Luong, Quang A
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung: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.