This paper introduces a new pulse modulator which USES VMOSFET as high voltage switch, describes its characteristics, operating principle and circuit design.
本文介绍一种以VMOSFET为高压开关的新型脉冲调制器，叙述其特点、工作原理及电路设计。
2
The design of the grid-driven circuit and the voltage balancing circuit for IGBT are also introduced, giving the output wave of the modulator.
文中还介绍了IGBT栅极驱动电路和IGBT电压均衡电路的设计方法，并给出调制器的输出波形。
3
The pulse width modulation character of voltage drive -type pulse width modulator TL494 is introduced. The applicable situation of TL494 in semi -bridge alternate switch power is also analyzed.