A Switched-Capacitor Inverter using Series/ Parallel Conversion with Inductive Load
M. Swarnalatha1, G. Devadas2, K. Sunil3

1M. Swarnalatha, CMRCET, Hyderabad, (Telangana), India.
2G. Devadas, CMRCET,  Hyderabad, (Telangana), India.
3K. Sunil, CMRCET, Hyderabad, (Telangana), India.
Manuscript received on April 05, 2013. | Revised Manuscript received on April 11, 2013. | Manuscript published on April 15, 2013. | PP: 56-63 | Volume-1 Issue-5, April 2013. | Retrieval Number:  E0250041513/2013©BEIESP
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© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: A novel switched-capacitor inverter is proposed. The proposed inverter outputs larger voltage than the input voltage by switching the capacitors in series and in parallel. The maximum output voltage is determined by the number of the capacitors. The proposed inverter, which does not need any inductors, can be smaller than a conventional two-stage unit which consists of a boost converter and an inverter bridge. Its output harmonics are reduced compared to a conventional voltage source single phase full bridge inverter. In this paper, the circuit configuration, the theoretical operation, the simulation results with MATLAB/SIMULINK, and the experimental results are shown. The experimental results accorded with the theoretical calculation and the simulation results.
Keywords: Charge pump, multicarrier PWM, multilevel inverter, switched capacitor (SC).