Battery charger with temperature detector

Details Battery charger with temperature detector Battery charger with temperature detector

1992-12-11

1995-10-17

Kincaid, Kristine L.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 21, H02J 704

Patent

active

054593913

ABSTRACT:
A battery charger for charging a secondary battery has an infrared radiation sensor for detecting the surface temperature of the secondary battery while the secondary battery is being charged. A charging control circuit stops charging the secondary battery, typically an Ni-MH battery, when the surface temperature detected by the infrared radiation sensor has reached a predetermined temperature. The battery charger also has a potential detector for detecting an electric potential of the secondary battery. The charging control circuit stops charging the secondary battery, typically an Ni--Cd battery, when the electric potential detected by the potential detector starts dropping after the battery has fully been charged.

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patent: 4829226 (1989-05-01), Nakamura et al.
patent: 4833390 (1989-05-01), Kumada et al.

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