| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a driving method of a switching element capable of dispersing loss and heat generation uniformly to switching elements connected in parallel.SOLUTION: First and second switching elements (5-1, 5-2) are driven so that the off-timing of the first switching element in the switching elements (5-1, 5-2) is shifted from the off-timing of the remaining second switching element. In this driving method, a state where the first switching element is turned off earlier than the second switching element, and a state where the second switching element is turned off earlier than the first switching element are obtained alternately at a predetermined period.</p> |
