This paper presents experiments on a low-frequency wireless power transfer system (WPTS) using a piezoelectric transducer with a magnet tip mass as a receiver. The thin-film piezoelectric bimorph cantilever is fabricated by sol-gel processing with the aim to miniaturize the system for wearable applications. The device couples an applied electromagnetic field to the mechanical transverse vibration of the beam, which then induces a voltage across a load resistance connected to the electrical ports. This coupled mechanism is therefore referred to as the magneto-mechano-electric (MME) effect. A power of 3.4 μW is generated in a resistance of 200 kΩ at a magnetic flux density of 100.3 μT. The potential of utilizing the same piezoelectric resonator for both energy harvesting and wireless power transmission modes is shown.
|Original language||English (US)|
|Journal||Journal of Physics: Conference Series|
|State||Published - Dec 4 2019|
|Event||18th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, PowerMEMS 2018 - Daytona Beach, United States|
Duration: Dec 4 2018 → Dec 7 2018
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)