Japan, Feb. 24 -- MITSUBISHI ELECTRIC CORP has got intellectual property rights for 'POWER CONVERSION DEVICE.' Other related details are as follows:
Application Number: JP,2022-152664
Category (FI): H02M7/48@M,H02M1/08@A
Stage: PROBLEM TO BE SOLVED: To provide a power conversion device capable of suppressing a failure of a semiconductor switching element in a case where abnormality occurs in a cooler.SOLUTION: A power conversion device comprises: a semiconductor switching element 3a; a liquid cooling type cooler 8 which cools the semiconductor switching element 3a; a thermistor 4a which detects temperature of the semiconductor switching element 3a; and a control section 6 including a gate drive circuit 6a which drives the semiconductor switching element 3a at variable switching speed. The control section 6 determines the presence/absence of abnormality in the cooler 8 based on a detected temperature Tj_sens of the thermistor 4a and controls, based on a determination result, the switching speed in turning on the semiconductor switching element 3a.SELECTED DRAWING: Figure 1 (Grant)
Filing Date: Sept. 26, 2022
Publication Date: April 5, 2024
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
