| 摘要 |
A semiconductor valve including a plurality of series-connected semiconductor devices and a plurality of capacitors. Each of the capacitors is connected in parallel to one of the semiconductor devices, respectively. Each of the semiconductor devices is a switching valve device having a pair of main electrodes and at least one control electrode. The semiconductor devices are such that a first variation in quantities with respect to tail charges on turn-off of the semiconductor devices is within a first prescribed value.
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