Recharging method and temperature-responsive overcharge protecti

Details Recharging method and temperature-responsive overcharge protecti Recharging method and temperature-responsive overcharge protecti

1996-08-09

1998-01-13

Wong, Peter S.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 22, 429 62, H01M 1046, H01M 1050

Patent

active

057083509

ABSTRACT:
An overcharge protection circuit for a battery pack and a method of recharging a battery pack in which a charging adaptor having two charging terminals may be used for a metal hydride battery pack, or the like, despite the fact that such a charging adaptor is responsive to a detected change in voltage across the two battery pack terminals to terminate a high rate of charging. The overcharge protection circuit senses the temperature of the cells in the battery pack and, when the sensed cell temperature reaches a threshold temperature, adjusts the voltage appearing across the battery pack terminals to exceed the change in voltage to which the charging adaptor responds by terminating a high rate of charging.

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patent: 4297630 (1981-10-01), Mullersman
patent: 4513238 (1985-04-01), Orban
patent: 4560915 (1985-12-01), Soultanian
patent: 4686444 (1987-08-01), Park
patent: 5252411 (1993-10-01), Yokokawa et al.
patent: 5254933 (1993-10-01), Lin
patent: 5302887 (1994-04-01), Ishiguro et al.

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