The recent development of pulse modulator is to use solid-state switches such as IGBT (Insulated Gate Bipolar Transistor ) and power MOSFET(Metal Oxide Semiconductor Field Effect Transistor)etc. as substitute for hydrogen thyratrons.

• 用IGBT(绝缘栅双极性晶体管)和功率MOSFET(金属氧化物半导体场效应管)等固态功率开关器件代替氘闸流管开关是脉冲调制器技术的最新发展方向。