Electricity: battery or capacitor charging or discharging – Battery or cell charging – With thermal condition detection
Patent
1999-07-02
2000-12-12
Wong, Peter S.
Electricity: battery or capacitor charging or discharging
Battery or cell charging
With thermal condition detection
H02J 704
Patent
active
06160383&
ABSTRACT:
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 contact temperature sensoris mechanicallyisolated from the battery such that the battery can be removed from the apparatus without removing the sensor. 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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Pathiyal, Esq. Krishna
Research In Motion Limited
Tibbits Pia
Wong Peter S.
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