double impulse meaning in English

成对脉冲
双脉冲

In this paper , researching and producing on current waveform control system of inverter carbon dioxide welding machine is given . the overall plan , the design of hardware structure , the programming and debugging of software is described in detail . the bang - bang and alterable structure discrete pid synthetic control algorithm are used to modulate the width of pwm signal in real time , to acquire the fiat character by driving and controlling the opening and shutting time of igbt , the technology of " double impulse " is adopted to realize electric current waveform control
本文介绍了逆变波形控制co _ 2焊机控制系统的研制，详细阐述了总体方案的制定、硬件研制及软件的编写与调试，采用变结构、离散型pid + bang - bang复合控制算法、实时调节输出pwm信号的脉冲宽度，驱动控制用于逆变的大功率开关管igbt的开通与关断时间，获得逆变焊机平外特性。