szjackcai02
Newbie level 1
Now i am using IR solution and design interver system,and the driver circuit is using by H full bridge driving.and use IR2106 for driving 4 IGBTs.and the control chip is PIC18F1320-I/P,and the software is use sine wave true table value,and the PWM period is 50US,and the sine wave frenqency is 59.9hz.but now my problem is the sine wave has distored.and especially for the zero time ,the sine wave more distored,how do i modify it ?Thank you,i am from China,can you provide me some detail advice for me ?Thank you!(ps my email:szjackcai02@gmail.com)