Indirect contact battery temperature detection for...

H - Electricity – 02 – J

Patent

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H02J 7/00 (2006.01)

Patent

CA 2313265

A battery recharging system and method are provided that include a rechargeable battery coupled to a recharging circuit. A recharging operation performed by the recharging circuit is controlled by a temperature measuring system, which is both electrically and thermally coupled to a contact engaging a terminal of the rechargeable battery. The temperature measuring system includes a contact temperature sensor and determination circuit, an ambient temperature sensor and determination circuit, a processing unit, and a threshold value unit. The determination circuits output first and second signals to the processing unit. The processing unit determines a difference value between these signals and compares the difference value to a threshold value from the threshold value unit. Based on this comparison, the processing unit sends control signals to the recharging circuit to control the recharging operation.

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