Indoor micro-light energy harvesting is very challenging because of very low indoor light energy density and conversion efficiency. It is therefore important to optimize system design so an energy harvester can provide sufficient energy to the WSN in low illuminance levels. In this paper, we present a special power management system that includes maximum power point tracking (MPPT), energy stor...

A wearable adhesive skin patch for transdermal drug delivery is developed with bendable microneedles, dry adhesive and triboelectric energy harvester (TEH). The bendable microneedle array can overcome the needle breakage issue. The dry adhesive can realize a conformal attachment. The TEH can generate power when attached on flat skin or joint to power active components to be integrated in the fu...

Ambient vibration sources in many prime energy harvesting applications are characterized as having stochastic response with spectra concentrated at low frequencies and steadily reduced power density as frequency increases (colored noise). To overcome challenges in designing linear resonant systems for such inputs, nonlinear restoring potential shaping has become a popular means of extending a h...

Piezoelectric Energy Harvesting Systems play a vital role in energizing microelectronic devices with the low-frequency operation. Here, novel piezoelectric energy harvesting device has been developed for low power electronic devices. The consists of cantilever poles projecting outwards and cantilevers one end is connected to wind-catcher, another torsional spring. signifies its application plac...

Vibration energy harvesting with piezoelectric materials currently generate up to 300 microwatts per cm2, using it to be mooted as an appropriate method of energy harvesting for powering low-power electronics. One of the important problems in bimorph piezoelectric energy harvesting is the generation of the highest power with the lowest weight. In this paper the effect of the shape and geometry ...