A new type of switched capacitor converter for energy harvesting system

An energy harvesting system requires a power converter with its compact size and high power efficiency. Following the trend, this study suggests a new switched capacitor converter (SCC). The proposed converter is designed by a parallel-and cross-connecting two Fibonacci topologies. This connection leads the proposed SCC to generate its multilevel outputs as well. The proposed SCC has the lowest output resistors under five times conversion ratios from the theoretical analysis and comparison of two different SCC topologies. Simulation results confirm that the proposed SCC can be operated over 90% power efficiencies under 100 mW. (c) 2021 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer-review under responsibility of the scientific committee of the 8th International Conference on Power and Energy Systems Engineering, CPESE, 2021.

Automated summary

A new switched capacitor converter (SCC) is proposed in this study, which is designed by parallel-and cross-connecting two Fibonacci topologies to achieve multilevel outputs and high power efficiency. Simulation results confirm that the proposed SCC can achieve over 90% power efficiency under 100 mW.