| 摘要 |
PROBLEM TO BE SOLVED: To provide a drive unit for switching element capable of avoiding constraint on occasions of deterioration diagnosis of a switching element S*#.SOLUTION: A drive IC 20 includes: a driving control section 22 that has a function for driving a switching element S*#, and a memory 24 that stores a threshold time Tth being a driving time of a switching element S*# assumed that the switching element S*# has been deteriorated. The driving control section 22, when a counter value corresponding to an input time of an on-driving signal is determined to be not less than the threshold value Tth stored in the memory 24, performs deterioration diagnosis for diagnosing whether or not the switching element S*# has been deteriorated. |
