• Yuvarani R
• Varcini K
• Ameer Basha D
• Dr.M kaliamoorthy

A two-stage switched-capacitor based multilevel inverter possesses a drawback such that switches in the second stage (i.e. H-bridge) endure higher voltage stress. To resolve this problem, this letter proposes a single-stage switched-capacitor module (S3CM) topology for cascaded multilevel inverter which ensures the peak inverse voltage across all switches within the dc source voltage. Nine voltage levels can be generated with only one dc source and two incorporated capacitors. Hence, the numbers of isolated dc sources are significantly reduced compared to cascaded H-bridge. In addition, voltage boosting gain of two is achieved. A comparative analysis against the recent topology reveals that the proposed S3CM topology achieves switch count reduction. The operation of the proposed topology is validated through circuit analysis followed by experimental results of a single module (9level) prototype.

Switched capactor

"Single Stage Switched Capacitor Based Multilevel Inverter for Photovoltaic Application", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 3, page no.688-693, March-2019, Available :http://www.jetir.org/papers/JETIR1903794.pdf

"Single Stage Switched Capacitor Based Multilevel Inverter for Photovoltaic Application", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 3, page no. pp688-693, March-2019, Available at : http://www.jetir.org/papers/JETIR1903794.pdf