Battery charger capable of accurately detecting battery...

Electricity: battery or capacitor charging or discharging – Battery or cell charging – With thermal condition detection

Reexamination Certificate

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Reexamination Certificate

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07064523

ABSTRACT:
A battery charger for charging a battery pack having a battery, a temperature sensor for sensing a temperature of the battery, and a battery terminal. The battery charger includes a charger terminal to which the battery terminal is connected when the battery is charged, a charge current generating circuit that generates a charge current for charging the battery, a battery temperature detector, and a controller. The battery temperature detector is configured to include a circuit, for example, to detect a temperature of the battery while cooperating with the temperature sensor and to output a temperature signal indicative of the temperature of the battery. The controller which is supplied with the temperature signal from the battery temperature detector, corrects the temperature signal, and provides a corrected temperature signal.

REFERENCES:
patent: 6114839 (2000-09-01), Takano et al.
patent: 6-113475 (1994-04-01), None

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