Secondary battery control circuit

H - Electricity – 02 – J

Patent

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Details

H02J 7/00 (2006.01) H02J 7/04 (2006.01) H02J 7/10 (2006.01)

Patent

CA 2332357

The invention provides a control circuit capable of reliable charge and discharge control of a rechargeable battery with no PTC element operated. A rechargeable battery control circuit (20) comprises a temperature detector (52) for detecting the temperature of the rechargeable battery (10), and a system logic (46) for performing charge and discharge control of the rechargeable battery (10) based on the temperature detected by the temperature detector (52). The system logic (4b) stops charging the rechargeable battery (10) if the temperature detected by the temperature detector (52) is out of a first predetermined temperature range, and stops discharging the rechargeable battery (10) if the temperature detected by the temperature detector (52) is out of a second predetermined temperature range.

L'invention concerne un circuit de commande capable de commander de manière fiable la charge et la décharge d'une batterie rechargeable en l'absence de fonctionnement d'éléments PTC. Un circuit de commande (20) de batterie rechargeable comprend un détecteur de températures (52) permettant de détecter la température de la batterie rechargeable (10), et une logique de système permettant d'effectuer la commande de charge et de décharge de la batterie rechargeable (10) en fonction de la température décelée par le détecteur de températures (52). La logique du système (46) arrête la charge de la batterie rechargeable (10) si la température décelée par le détecteur de températures (52) se situe hors d'un premier éventail de températures, et arrête la décharge de la batterie rechargeable (10) si la température décelée se situe hors du second éventail prédéterminé de températures.

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