2:10 PM - 2:40 PM
▲ [18p-Z02-3] Energy extraction circuits for piezoelectric vibration energy harvesting
Keywords:Energy harvesting, Vibration, Piezoelectricity
Piezoelectric generators are among the most promising vibration energy harvesters due to their high power density and technological maturity. They generate alternating voltage that must be rectified and regulated to power, for example, IoT wireless sensor nodes. The usual method of using a diode-based rectifier followed by a voltage regulator is, however, sub-optimal, especially in the case of piezoelectric generators with weak electromechanical coupling.
Advanced energy harvesting strategies have been proposed to improve energy extraction. Non-linear circuits based on electronic switches driven synchronously with vibrations have attracted much attention. This talk will present the operating principle of these techniques and how they can improve the power density, and also the bandwidth, of piezoelectric generators. The practical implementation of such circuits will also be discussed.
Advanced energy harvesting strategies have been proposed to improve energy extraction. Non-linear circuits based on electronic switches driven synchronously with vibrations have attracted much attention. This talk will present the operating principle of these techniques and how they can improve the power density, and also the bandwidth, of piezoelectric generators. The practical implementation of such circuits will also be discussed.