pulse width modulation inverter

Pulse Width Modulation Control Based on Pulse Encode and Pulse Rotation for Cascade Neutral Point Clamped Inverter

脉冲编码和旋转的级联中点箝位逆变器脉宽调制控制

The paper focuses on component part of digital pulse MIG welding inverter power. Main circuit, control circuit, pulse width modulation ( PWM) circuit, drive circuit and wire feeding circuit are respectively analyzed.

论文还重点介绍了数字化脉冲MIG焊软开关逆变弧焊电源的组成结构，并分别就软开关逆变焊机的主电路、控制电路、保护电路、驱动电路以及送丝电路做了详细的分析。

Change the inverter output voltage or output current are two kinds of different ways, namely, PAM pulse amplitude modulation control and PWM control pulse width modulation.

改变变频器的输出电压或输出电流有二种不同的方法，即PAM脉冲幅值调制控制和PWM脉冲宽度调制控。

Control circuit is taking pulse wide modulation circuit as core. By comparison of given signal and feedback signal of overvoltage, get the width-adjustable pulse signal for regulating output of welding power source so as to realize the colsed-loop control to arc-welding inverter.

控制电路以脉宽调制电路为核心，通过电压给定信号和反馈信号的比较，获得宽度可调的脉冲信号，调节焊接电源的输出，并实现对弧焊逆变器的闭环控制。

The topology operating principle and Pulse Width Modulation strategy of bi-directional Z-source inverter were analyzed.

分析了 双向 功率流阻抗源逆变器系统工作原理、脉冲调制方式.