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MOSFET (Si/SiC) Forum Discussions

petros
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for the rference code of CCM 3kw PFC;  about the PI coefficient calculation.
" current_PI_ctr.a1 = -((ZERO_LOC_3k_Q * current_PI_ctr.a0) >> ILOOP_COEFF_Q);  "
my qustion is:  where does the zero location came from?
Coz refer to a typical PI compensator dodel, the coefficients, a0 = kp + ki*Ts/2,  a1 = -kp + ki*Ts/2;
is there any app notes shows the the details ?

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Vinay
Moderator
Moderator 10 solutions authored 10 likes received 25 replies posted
Moderator

Hi @petros,

Good Day!

 

Please refer Current control loop design of PFC.

 

For a basic understanding of the compensator design of the buck converter, you can go through the application notes compensator design of Buck converter

 

For designing a digital controller for the PFC converter, please refer Digital controller for PFC

 

Best regards,

Vinay

Best Regards,
Vinay

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Vinay
Moderator
Moderator 10 solutions authored 10 likes received 25 replies posted
Moderator

Hi @petros,

 

Thanks for posting your question in Infineon Community.

 

Could you please share the details of the Evaluation testing board you are working on?

 

Best regards,

Vinay

Best Regards,
Vinay
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petros
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3300 W CCM bi-directional totem pole with 650 V CoolSiC™ and XMC™

 

thanks.

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Vinay
Moderator
Moderator 10 solutions authored 10 likes received 25 replies posted
Moderator

Hi @petros,

Good Day!

 

Please refer Current control loop design of PFC.

 

For a basic understanding of the compensator design of the buck converter, you can go through the application notes compensator design of Buck converter

 

For designing a digital controller for the PFC converter, please refer Digital controller for PFC

 

Best regards,

Vinay

Best Regards,
Vinay
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petros
Level 1
First reply posted First question asked Welcome!
Level 1

Thanks, its really helpful

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