MUMBAI, India, May 1 -- Intellectual Property India has published a patent application (202641049544 A) filed by Infinity Arsenal Private Limited, Chennai, Tamil Nadu, on April 18, for 'system for modular, feedback-regulated isolated dc-dc conversion for tethered uav's.'
Inventor(s) include Dr. M. Sundararaj; and Mr. Ramakrishna Madhira.
The application for the patent was published on May 1, under issue no. 18/2026.
According to the abstract released by the Intellectual Property India: "The present invention discloses a high-power density, isolated DC-DC converter system designed to provide regulated power to tethered Unmanned Aerial Vehicles (UAVs). The system converts high-voltage DC transmission power (e.g., 400V) to low-voltage propulsion power (e.g., 50V) utilizing a modular architecture comprising a Universal Control Interface and a monolithic H-Bridge MOSFET module. To address voltage fluctuation caused by resistive losses in long tether cables, the system incorporates a galvanically isolated closed-loop feedback mechanism utilizing an optocoupler network. This feedback loop continuously monitors the rectified DC output at the drone and dynamically adjusts the Pulse Width Modulation (PWM) duty cycle or frequency of the switching stage to maintain a constant voltage under varying load conditions. The system further integrates an active thermal management assembly to sustain continuous multikilowatt operation within a compact airframe."
Disclaimer: Curated by HT Syndication.
