MUMBAI, India, Oct. 5 -- Intellectual Property India has published a patent application (202631104983 A) filed by Dushmanta Kumar Das on August 27, 2026, for Single-Source Switched-Capacitor-Based 25-Level Sextuple Boost Multilevel Inverter With Reduced Component.
Inventors include Longdichem S Sangtam; Behilo Seb; and Dushmanta Kumar Das.
The application for the patent was published on October 02, 2026, under issue no. 40/2026.
Abstract: Inverters are fundamental power electronic converters used to transform a direct current (DC) input into an alternating current (AC) output. However, conventional inverters face limitations in synthesizing a high-quality sinusoidal waveform due to their inherent switching nature, often necessitating high-frequency PWM, bulky filters, and additional conditioning stages. These challenges increase EMI, switching losses and complexity. Multilevel inverters counter these problem by generating staircase like voltage levels that approximate a sinusoidal waveform, thus reducing THD, dv/dt etc. However, to design a MLI that provide high-quality output and reduced component count, cost etc. remains a crucial challenge for a researcher. In this Paper, a single-sourced SC-MLI topology for 25-level that generate sextuple voltage boost capability for both linear and nonlinear loads is proposed. In the proposed design, the series–parallel capacitor is used for achieving sextuple voltage boost. Logic-based switching strategy is designed for capacitor soft charging and discharging, generate desired voltage levels and to maintain self-voltage balancing. Such MLI can be used in renewable energy conversion like; solar or wind, industrial machine driving, commercial energy conversion system etc... Lastly, the proposed model is designed with twelve MOSFETs, four capacitors, two diodes and simulated in MATLAB/Simulink 2022b. Simulation results verified the proper functioning of the design, confirming stable capacitor-voltage levels, less device stress, and ability to produce 25-level stepped sextuple output gain with 97.07% efficiency. The model is further validated from a real time simulation using OPAL RT Technology. These results demonstrate the capability, correctness and effectiveness of the proposed design.
Disclaimer: Curated by HT Syndication.
