MUMBAI, India, Sept. 12 -- Intellectual Property India has published a patent application (202517079936 A) filed by Mitsubishi Electric Corporation, Tokyo, on Aug. 22, for 'semiconductor element driving circuit and power conversion device.'
Inventor(s) include Mitsui, Yohei; and Morisaki, Shota.
The application for the patent was published on Sept. 12, under issue no. 37/2025.
According to the abstract released by the Intellectual Property India: "A driving circuit (100) comprises: a gate driving circuit (2) that individually drives one of two semiconductor elements (5a, 5b) connected in series; and a short circuit detection circuit (3) that detects an arm short circuit of the semiconductor elements (5a, 5b). The short circuit detection circuit (3) is provided with a voltage application circuit (34A) to which a main terminal voltage is applied, and a short circuit determination circuit (31) which determines whether or not there is an arm short circuit. The voltage application circuit (34A) is provided with a first resistor (50) that comprises a plurality of resistance elements, a first capacitor (51) that comprises a plurality of capacitance elements (55) which are respectively connected in parallel with the resistance elements of the first resistor (50), and a second capacitor (52) that comprises a plurality of capacitance elements (56) which are connected in series. The second capacitor (52) is disposed closer than the first capacitor (51) to a bus bar (7), which is a noise source."
The patent application was internationally filed on Mar. 10, 2023, under International application No.PCT/JP2023/009371.
Disclaimer: Curated by HT Syndication.
