1·This paper introduces the basic theory of space-vector PWM (SVPWM), and designs the ac photovoltaic water pump system on the basics of this theory.
本文介绍了空间电压矢量脉宽调制(SVPWM)的基本原理，并应用此原理进行了交流光伏水泵系统的设计。
2·The frequency of PWM wave can also adjusted by engineers through choosing the capacitance.
脉宽调制信号的频率可以由用户设置电容的大小来调整。
3·In this paper, using a new principle of PWM and the teehnique of storage system in a microcomputer are deseribed, and a 25Hz sinusidal bell current source has been developed.
本文介绍了采用新的脉宽调制原理和微电脑技术，研制出的25赫正弦波铃流源。
4·In addition, how to use this counter to realize Gray Display by PWM in Driving Circuit of Flat Panel Display has been discussed.
另外，还介绍了该计数器在一种平板显示器驱动电路中是如何通过脉宽调制实现灰度显示的。
5·The wire feeder timing system consists of MOSFET switch control circuit, PWM circuit and control circuit.
送丝调速系统由功率MOSFET开关控制电路、脉宽调制电路及控制电路构成。