A Design Optimization Scheme for Battery Operated Small Size Systems

H. Hirai, T. Koyagi, Y. Tachikawa, and M. Fukui (Japan)


Battery operated system, low power, buck converter, power supply optimization, power dissipation model


Due to the rapid popularization of portable equipments, it becomes very important to make the battery lifetime longer without increasing the battery size. Especially for ubiquitous computing age, long battery lifetime in a tight size limitation will be highly required. This paper proposes an algorithm to optimize the battery lifetime in the restriction of total size, by simultaneous consideration of operation condition of battery, buck converter, and LSI. We discuss accurate design models of the battery, the converter, and the LSI at the same time.

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