LM5171-Q1: LM5171-Q1

Hi Rayees,

You are right, the voltage loop of buck and boost are independent. But the compensation structure is the same. The difference lies in the power stage transfer function.

You may also use the design calculator for compensation.

Best Regards,

Feng

Hi Feng,

Thank you for your reply. I have used the calculator, but i want to know what the difference in the equations for calculating the voltage loop compensation components for Boost compared to Buck,

The individual parameter like fcv, Kdc_Bk, Wz_vl, Wz_il and Kiset i have considered for Boost differently as per the TI datasheet, can i use the same above equations to calculate the Boost voltage compensation components by considering the parameter change wrt to Boost. TI calculator not providing any equations for calculation, i need to verify my calculations.

Regards

Rayees K.E

Hi Feng,

Thank you for your details. I have tried to download from the above link, but not able to download. Can you share me the Pdf copy of this.

Regards

Rayees K.E

Hi Rayees,

You can find it by searching "Switch-mode power converter compensation made easy".

Best Regards,

Feng