Generating Electricity during Walking with Concentrated Flux Type Vibration Generator

Abstract

　This paper presents an electromagnetic vibration generator for harvesting walking energy, which is used a con-centrated flux array. This array is arrangement of magnets which concentrates magnetic fluxes on one side of the array and prevents the magnetic saturation in the yoke. The generation electricity in walking is calculated with the acceleration which is measured on leg. By comparing the calculated electric power of the proposed and the conventional generator which uses N-S array, we clarified that the proposed generator produces 14% higher power than the conventional generator.