| 摘要 |
PROBLEM TO BE SOLVED: To provide a power switching device that has higher antinoise performance in performing signal transmission using magnetically insulated elements.SOLUTION: A gate drive board 20 is arranged in parallel with an upper arm board 30 and a lower arm board 31, and is mounted with a plurality of magnetically insulated elements. In the gate drive board 20, a magnetically insulated element 21b positioned between output busbars 55, 56 is mounted such that an interval W1 to the output busbar 55 connected to an IGBT 51b to which a gate driving signal is output from the magnetically insulated element is wider than an interval W2 between the magnetically insulated element 21b and the other output busbar 56. |
