Buck-Boost Converter for Sensorless Power Optimization of Piezoelectric Energy Harvester

Nonlinear Conversion Enhancement for Efficient Piezoelectric Electrical Generators

“…However, is spite of a great increase of the harvested power, such approaches still suffer from load-dependent power. Hence, the aim of this section is to expose a modified approach still based on nonlinear treatment that not only allows a power output increase (less than the SSHI approaches however), but also a harvested power independent from the load thanks to a decoupling of the extraction stage from the storage, which permits bypassing a supplementary adaptation stage (Ottman et al, 2002;Ottman, Hofmann and Lesieutre, 2003;Han et al, 2004;Lefeuvre et al, 2007a;Lallart and Inman, 2010b) that may dramatically decrease the power because of losses 6 .…”

Seismic control of a SDOF structure through electromagnetic resonant shunt tuned mass-damper-inerter and the exact H2 optimal solutions

“…1(b) shows the ERS-TMDs [32] where the foremost energy dissipative damping in classical TMD, depicted in Fig. 1(a), is substituted by an electromagnetic transducer shunted with a coil resistance capacitance and inductance [38,39]. Inspired by the ERS-TMDs concept, this study considers the ERS-TMDI configuration shown in the Fig.…”

Vibration Based Piezoelectric Energy Harvesting Utilizing Bridgeless Rectifier Circuit

“…The conventional energy harvesting circuits consisting of piezoelectric element, AC-DC rectifier and boost converter are shown in Figure 3. Many vibration-based energy harvesting systems use a piezoelectric transducer as an AC source (Ottman et al 2002), Priya, S. 2007;Lefeuvre et al 2007). It generates AC voltage which must first be rectified before it can be used in load.…”

“…The control and gate drive of this circuit is also very simple, only switch M1 needs to be controlled and gate drive shares the same ground with the input voltage source. A conventional interface circuit is not fully efficient to convert AC to DC signal and to increase the voltage in electrical applications because the forward voltage of diode potential is higher than the input source (Lefeuvre et al 2007;Yuan & David 2011) In the general power harvesting system, there is a transducer that harvests energy and then converts it into electrical power. The transducer can be mechanical vibration-based energy harvesting system use piezoelectric transducer as AC power source, whose output voltage need to rectify before supply into load.…”