| Abstract |
This paper presents the implementation of an optimized fast-charge method for Ni-Cd and NiMH batteries used in portable applications. The proposed method performs the following two basic
functions. The first one determines battery state (detecting deteriorated batteries, analyzing the state of charge and so on). The second one optimizes the charging time and, simultaneously, guarantees a safe fast-charge without negative effects on battery life.
In order to facilitate the implementation of charge system, a new battery management re have been developed. This IC monitors battery's main parameters and controls the complete charge process by driving charging/discharging power stage switches. As the re requires few peripheral components, an efficient and economic battery fast-charger is obtained. |
