In this paper, we analyse and demonstrate an energy-harvesting generator powered by continuous rotation, using gravitational torque to enable a single point of attachment. The electro-mechanical behaviour of the generator is presented, alongside experimental results from an implementation based on a conventional dc motor. The off-axis performance is also modelled. The design and experimental re...

This paper represents two model of photovoltaic, the first uses the Matlab, it explains the Photovoltaic Cell I-V Characterization and how we can get the Maximum peak power tracking(MPPT), the other is done in Orcad(new version of Pspice), in Orcad we propose an electronic circuit to be realize easily, a newer technique will be discussed in the last one, it is a new geometric approach, it depen...

This paper presents a maximum power point tracking (MPPT) interface circuit for low-voltage DC-type energy harvesting sources such as light and thermal energy. Most systems used in miniature-sized sensor require start-up circuits because the output voltages of small-sized transducers are very low not enough to directly electronic systems. The proposed is driven by small size transducers, elimin...