Single-Channel Heterogeneous-Source Energy Harvesting PMIC Design

This work proposes an energy harvesting platform that is able to convert power from both DC sources (photo-voltaic cells and TEGs) as well as piezo element sources. It does so only using a single input channel to which a single harvester can be connected. The proposed system is able to differentiate between the two source...

On the efficiency of coupled vs uncoupled vibration energy harvesters under transient excitations

Vibration energy harvesters are especially interesting to use in an environment where there is one dominant vibration frequency present because then the harvesters can be designed to resonate at that specific frequency. To spread out the power yield over more frequencies a multi-modal harvester can be used which can resonate at multiple...

Optimization of Cantilever-Shaped Piezoelectric Energy Harvester: with the Application of Mechanical Stoppers

Energy harvesting has become a popular topic for battery substitution in recent years. In particular, mechanical vibrational energy, one of the most common energy sources, has been intensely studied. Piezoelectric materials play a crucial role in vibrational energy harvesting as they can directly convert the mechanical energy to the desired...

WhirlWind: Wind Energy Harvesting Wireless System for Sensing Angle of Attack and Wind Speed

Piezoelectric Vibrational Energy Harvesting: Mechanical reliability of piezoelectric cantilevers

Piezoelectric vibration energy harvesting can provide a sustainable source of <br/>energy for low-power sensors. The vibrational energy is converted to electrical energy by piezoceramic cantilevers. Replacing batteries by vibrational energy harvesters, reduces the footprint of the device and no continuous replacement of batteries is required...

ENMOS: Energy Module for Self-Sustainable Wearable Sensors

This work focuses on addressing the fundamental limitation on the minimum cold start-up voltage that could be harvested from a thermoelectric element (TEG) for human-body wearable applications. For ultra-low DC voltages, the challenge translates to generating a timed-signal to amplify it up to a value that could be used to drive, say, a boost...