ABB 3BHB007445P0001变频器原装正品

ABB 3BHB007445P0001变频器原装正品

ABB 3BHB007445P0001变频器的分类

1、按调制方式分

(1)PAM(脉幅调制)：在整流电路部分对输出电压幅值进行控制，而在逆变电路部分对输出频率进行控制的控制方式

(2)PWM(脉宽调制) ：保持整流得到的直流电压大小不变的条件下，在改变输出频率的同时，通过改变输出脉冲的宽度，来达到改变等效输出电压的一种方式。

Classification of ABB 3BHB007445P0001 inverter

1, according to the modulation method

(1)PAM(pulse amplitude modulation) : The control mode of controlling the output voltage amplitude in the rectifier circuit part and the output frequency in the inverter circuit part

(2)PWM(pulse width modulation) : A way to change the equivalent output voltage by changing the width of the output pulse while changing the output frequency under the condition that the size of the DC voltage obtained by rectification is unchanged.