Impedance-Tuned Ultrasound Vibration Wireless Power Transfer System for Biomedical Devices

Wireless power transmission systems (WPT) have been attracting attention from the viewpoint of infection prevention as a method of power supply to biomedical devices such as pacemakers. In particular, ultrasound vibration WPT (UWPT) is expected to be commercialized as a means of supplying power to medical devices built into the human body from the viewpoint that it does not cause health damage and can be developed into a bio-environmental power generator. In this research, a series resonant UWPT system is proposed for the implantable devices on the basis of series resonant tank. Its effectiveness is verified from the viewpoints of non-invasive and non-contact powers supplies to human body.