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From nickel-cadmium to nickel-hybride fast battery charger

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2 Author(s)
Nicolai, J. ; Corp. Appl. Lab., SGS-Thomson Microelectron., Rousset, France ; Wuidart, L.

In todays portable equipment, the trend is to replace Ni-Cd batteries with the more environmentally friendly Ni-MH batteries. Several battery charger applications such as notebook computers and portable telephones already require Ni-Cd/Ni-MH compatible battery chargers. In this paper, the described charge termination method is based on the detection of the inflexion point in the battery voltage curve. This inflexion point detection method is not only “Ni-Cd/Ni-MH compatible” it also significantly increases the Ni-Cd battery lifetime when fast charging

Published in:

Power Electronics and Drive Systems, 1995., Proceedings of 1995 International Conference on

Date of Conference:

21-24 Feb 1995