Regarding Spikes in Phases in BLDC Controller

[Karthik DM]

Hello All, 

I'm developing 48Volt 700Watt BLDC Motor Controller Using STM32 Controller. 

I didn't use STM Motor Control Workbench Tool for this Project. I developed my own library and source code for this project. 

When motor is running initial spikes is coming and at the center of the graph another spikes also coming.

Can anyone please tell me why this problem is happening in controller.

Here I'm attaching the Phase U(Yellow) and Phase V (Blue) waveform.

Please check and let me know.

Thanks & Regards

Karthik DM

E-Mail : karthikdm1997@gmail.com

[cedric H]

Hello Karthik,

Debugging your own software solution is beyond my skills !

But, I can try to give you few hints anyway .

Could you do a screenshot with both, the Phase voltage and the current measured with a current probe of one phase ?

Regards

Cedric

[Laurent Ca...]

Hello @Karthik DM​ ,

Could you do and post a screenshot of the Phase voltage and of the current measured with a current probe of one phase ?

Best Regards

Laurent Ca...

[Laurent Ca...]

Dear @Karthik DM​ 

As you do not answer, I guess you don't have to solve this problem anymore, therefore I consider this thread closed.

If not, feel free to reopen it by posting a new answer.

Best regards

Laurent Ca...