准正弦波

基于坐标轴投影、PWM调频的三相准正弦波信号发生器

A Three-phase Quasi & sine Signal Generator Based on Coordinate projection and PWM Freguency Control

着重讨论了多重式结构的电流型脉冲变流器，它将能从电网获得cos≈1的准正弦波电流，其输出是可调的恒定电流。

The paper mainly discusses current source pulse converter with multiple connection which receives quasi-sine wave current with cos φ≈ from the AC line and sends out a controlled direct current .

本文揭示了一种新型的用软件实时生产PWM波的方法，它采用规则采样法获得脉宽值，采用准正弦波异步调制生成PWM波。

In the paper , the author discovers a novel method of generating the PWM wave in real time by microprocessor . The method gets the pulse width by regular sampling , and generates the PWM wave by using the asynchronous pulse width modulation of a quasi & sinusoidal wave .