guo chunhua

distorted current wave

Discussion created by guo chunhua on Feb 21, 2017
Latest reply on Feb 23, 2017 by xiangjun.rong



Excuse me, in codewarrior 10.7, the MCU is 56f84789 ,I use VVVF algotithms to control a PMSM, the motor current measured by hall sensor is distorted near the rising edge,   the dead time is 3us, perhaps the distorted wave is influenced by dead time, how can I  configure the dead time rigister correctly? the attachment is my current wave and my deadtime compensation program, what is wrong with my deadtime compensation program? thanks a lot.




Guo Chunhua