Hello,

I'm trying to design SMPS with PFC function using Boost Converter in PSpice. I have a problem with pwm signal. Depending on the value of voltage of triangular signal (Vref_PWM1), the results changes. I need help to choose right value of this signal and PI controller values. Are there other simple ways to generate a PWM signal?

 

hi K4211,
Welcome to AAC.
Please post your LTS asc file.
E

 

hi K4211,
Welcome to AAC.
Please post your LTS asc file.
E

That's simulation in PSpice not LTSpice.
I've attached a .sch file.

 

hi K,
I don't use Spice, but many other members do, by posting your simulation file it should help with replies.
I use LTSpice.
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Maybe, I didn't understand you correctly or I'm doing something wrong, but I've attached .sch simulation file. I don't use LTSpice.

 

Hi K,
No problem, all I am saying by posting your .sch file to the Forum it will enable members who use Spice, to give you help with the Spice circuit.
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