UCD3138PSFBEVM-027: Change peak current mode control to a single loop voltage mode control

Hi, Art,

It needs some code changes to get voltage mode control:

1). Change  filter output to drive DPWMs directly (Dpwmx( x =0,1,2,3) Regs.DPWMCTRL0.bit.CLA_EN     = 1)

2). Loop compensation is different between two controls..  You need change Kp, Ki, Kd, Kcomp, filter clamp high for loop stability.

if you know UCD registers, you can change them quickly, otherwise it may take some time to get them done

Regards,
Sean

Hello Sean,

Good day.

The customer is worried that by changing Kp, Ki, Kd, Kcomp he might  damage the converter for he have very little experience with the device and he have only one board. He was hoping if we already have a program with all the modification tested that he can load in the UCD?

Thanks and regards,

Art

Art,

Does customer have source code to work on? Without source code, the operation can't be changed from PCM to VCM. 

We do have code for VMC, but it is not on the web. I don't know how we can share it. You may tell me your email address.

Thanks,
Sean

Hi Sean,

I just sent you a friend request, If it's not possible to send there, just let me know and I will send you a separate email.

Thanks and regards,

Art

Hi, Art,

Can you send me a separate email?

Thanks
Sean

I just sent a separate email.

Thanks again Sean!

-Art

Art,

We use TI- driver to transfer file, do you think your customer can download the files from TI-driver?

Thanks,
Sean

Hello Sean,

I am not sure, but we can try, or you can share it with me and I will forward to the customer.

Best regards,

Art

Hi, Art,

Does  Ariel  is real name? I found it from address book.

Thanks,
Sean

Hi Sean,

Yes it is

-Art