Ultra-low-power single-inductor multiple energy source harvester and multiple output DC/DC converter

Abstract

As the technology of the battery develops, it is used variously in small electronic products. However, since small size batteries have limited power, the efficiency of integrated circuits is important. This paper describes an energy harvester that charges a miniature battery through harvesting from multiple energy sources (piezoelectric transducer and thermoelectric generator) using single inductor and a DC / DC converter that produces multiple outputs from a miniature battery using single inductor.