| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a driving device for semiconductor device which can suppress an overvoltage generated in a transient period wherein a semiconductor device turns on and off with low loss and high precision and can be IC- implemented and a small-sized and low-loss power converting device which uses the driving device. <P>SOLUTION: The driving circuit for semiconductor device is provided with an element which limits a current flowing to a control terminal in voltage surge suppression, an element which limits a current flowing to a circuit discharging the voltage at the control terminal when a main semiconductor device is cut off, and an element which reduces loss generated in a driving circuit with the current. Further, the driving device suppresses the overvoltage with high precision and optimizes the dielectric strength of a driven main semiconductor device to reduce the loss of the power converting device. <P>COPYRIGHT: (C)2003,JPO |
