METHOD FOR DETECTING TEMPERATURE OF SEMICONDUCTOR ELEMENT AND SEMICONDUCTOR POWER CONVERTER

摘要

PROBLEM TO BE SOLVED: To provide a temperature detecting method for a small-sized and low-priced semiconductor element and a power converter. SOLUTION: Temperature detection for thermal protection of a power semiconductor is performed by a temperature detecting element 22 nearby a component 8 in which the power semiconductor element is packaged, and nearby one of an emitter terminal and a collector terminal of the power semiconductor element. The temperature detecting element 22 can be fitted to a circuit board 13, so it is not necessary to electrically insulate the temperature detecting element 22 from cooling fins 15 where the temperature detecting element is arranged and neither a lead wire nor a man-hour for wiring the lead wire is required, so the power semiconductor element in the power converter can be protected at low cost. Further, the power converter can be made small-sized and its assembly time can be shortened. COPYRIGHT: (C)2005,JPO&NCIPI