MUMBAI, India, June 24 -- Intellectual Property India has published a patent application (202618062128 A) filed by Tmeic Corporation on May 15, 2026, for Power Conversion Device And Method Of Diagnosing Failures Of Switching Devices.
Inventors include Morisaki, Kouki; and Li, Haiqing.
The application for the patent was published on June 12, 2026, under issue no. 24/2026.
Abstract: A power conversion device (2) with a three-level TNPP circuit (20), includes: a voltage detection unit (26); a test pulse output unit (28) that outputs a test pulse to an inner switching device connected in a forward direction from the DC neutral point to an AC output terminal when the voltages detected by the voltage detection unit (26) rise and exceed a prede...