The influence of power harvesting circuits on energy harvesting performance

D. Dane Quinn; Stephen G. Burrow; David A. W. Barton

doi:10.1117/12.848926

9 April 2010 The influence of power harvesting circuits on energy harvesting performance

D. Dane Quinn, Stephen G. Burrow, David A. W. Barton

Proceedings Volume 7643, Active and Passive Smart Structures and Integrated Systems 2010; 76430W (2010) https://doi.org/10.1117/12.848926
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2010, San Diego, California, United States

Abstract

We consider the performance of a vibration based energy harvester with realistic topologies for the electrical circuit, including power conditioning through a rectifier. Specifically we apply a novel perturbation approach to describe the time-varying power harvested in the system, including a rectifier in the circuitry. This approach considers the full electromechanical coupling between the mechanical and electrical components, including the amplitude and phase of the mechanical response. The resulting analysis is able to describe the behavior of the system as the mechanical response is detuned from resonance by the electrical load. In addition, the charging of the circuit over time is also captured by the analysis. Finally, the analytical results are compared against the numerical simulations of the original equations of motion to verify the analytical approach.

Citation Download Citation

D. Dane Quinn, Stephen G. Burrow, and David A. W. Barton "The influence of power harvesting circuits on energy harvesting performance", Proc. SPIE 7643, Active and Passive Smart Structures and Integrated Systems 2010, 76430W (9 April 2010); https://doi.org/10.1117/12.848926

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