研究创新型功率器件，它是用两个外部可控的电流源控制晶闸管耐压区在导通时的电子电流与空穴电流，从而使其阳极与阴极之间在高电压下总电流呈现趋于饱和的特性。因此可避免个别区域的电流集中效应而提高晶闸管的可靠性。还研究两个"外部"可控的电流源在器件内部的实现方法以及加快由导通到关断过程及由关断到导通过程的方法。该种创新型功率器件比现有其它功率器件具有更高的阻断电压以及更低的导通损耗，以及更快的开关速度，且利用中国现有的常规工艺可以低成本实现量产。我们估计这将成为新一代功率器件，并为电力电子学开辟一个新的研究领域。在申请的前期工作已经证明此器件实现的可能性极大。本项目有一系列批准了的发明专利及正在申请中的发明专利支持，并将引出其它的发明专利及论文。

The novel high power devices are to be studied. Such devices employ two external controlled current sources to control the hole current and the electron current in the voltage-sustaining region in the on-state. Therefore, the total current between the anode and cathode tends to saturate, which can avoid the current crowding effect in local region and enhance the reliability of the device. A method to integrate the two external controlled current sources into the device and a method to realize the fast switching are also researched. The novel high power devices have higher blocking voltage, lower conduction loss and fast switching speed than other high power devices. Besides, the novel high power devices can be mass-produced by using the conventional technology. We forecast the novel high power device will become the next generation high power device and open up a new research field in power electronics. In the preparatory work, it has been verified that the the realization of this device is feasible. This program is supported by a series of granted and applied patents and will also encourage other patents and papers.