Shear wave velocity data measured by these two methods appeared to be good consistency and no obvious frequency dispersion was found from a few hertzs to tens of kilohertzs.
In these applications, tens kV voltage level, single device can't be used in these occasions, Therefore, the research of IGBT series technology has great significance.
In these applications, tens kV voltage level, single device can't be used in these occasions, Therefore, the research of IGBT series technology has great significance.