Projects per year
In this paper, a summary of published techniques for power conditioning within energy harvesting systems is presented. The focus is on low power systems, e.g <10 mW, for kinetic energy harvesting. Published concepts are grouped according to functionality and results contrasted. The various techniques described are considered in terms of complexity, efficiency, quiescent power consumption, start-up behaviour and utilisation of the harvester compared to an optimum load. The paper concludes with an overview of power management techniques that aim to maximise the extracted power and the utilisation of the energy harvester.