Development of an energy harvesting circuit with photo MOSFET and Arduino for linear electromagnetic transducers

An energy harvesting circuit with an isolated step-up chopper circuit and an Arduino is newly developed for electromagnetic transducers including voice coil motors. The isolated step-up chopper circuit is implemented by a photo MOSFET. The optimal duty ratio is computed by a DSP and the photo MOSFET is controlled by the Arduino. The measured charged voltage shows an agreement with the prediction of the previously studied results.