The waveform square wave, sine wave, triangle wave and the sawtooth wave, etc.

其波形有方波、正弦波、三角波和锯齿波等。

The principle of square wave inverter using IGBT switch devices was introduced.

本文介绍了新型开关元件IGBT管作为逆变开关元件的交流矩形波逆变器的原理。

By STC12C5A60S2 new PCA modules can be adjusted to produce the duty cycle square wave.

说明：通过STC 12c5a 60s2新增的PC A模块来产生占空比可以调节的方波。

Syllable with a different frequency square wave, square wave of the frequency control timer.

音节有不同频率的方波产生，利用定时器控制方波的频率。

The inductance of energy storage reactor in square wave AC welding has been chosen and analyzed.

对方波交流焊接电源电抗器电感量的选择作了介绍。