MUMBAI, India, April 17 -- Intellectual Property India has published a patent application (202611009790 A) filed by Dr B R Ambedkar National Institute Of Technology, Jalandhar, Punjab, on Jan. 30, for 'a single input high-gain transformer-coupled multilevel inverter topology for renewable energy systems.'
Inventor(s) include Dr. Bhukya Nageswar Rao; Dr. Pothuraju Ramakrishna; and Dr. Anil Kumar Yadav.
The application for the patent was published on April 17, under issue no. 16/2026.
According to the abstract released by the Intellectual Property India: "The present invention relates to a single-input, high-gain transformer-coupled multilevel inverter system for renewable energy applications. The inverter converts DC power into high-quality AC power using a single DC source, a single-phase transformer, and a reduced number of power semiconductor switches. The proposed topology employs fourteen switches and ten gate driver circuits to generate up to thirty-one discrete output voltage levels with total harmonic distortion below three percent. Transformer coupling provides voltage gain and inherent harmonic filtering, eliminating the need for multiple DC sources and bulky external filters. The invention offers a compact, cost-effective, and efficient solution for photovoltaic and distributed power generation systems."
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