Hello,
I am an EE student and have some problem with understanding canonical model (from Erickson book, picture attached). It contains averaged switching circuit ("DC transformer"), effective output filter (L and C), and sources that represents PWM response for output voltage error.
The problem is - how can I use it to compute output impedance or Gvd(s) and Gvg(s) transfer functions? Does j(s) source even matter (it's connected parallel to voltage and their are both "ideal"). Isn't output impedance just LC circuit output impedance? I guess I make some elementary mistake, and I'd really appreciate some step-by-step solution (no calculations of course, just what are essential parts of this analysis and what is related to another thing).
Feel free to ask me any questions, I'm looking forward to any answer.
I am an EE student and have some problem with understanding canonical model (from Erickson book, picture attached). It contains averaged switching circuit ("DC transformer"), effective output filter (L and C), and sources that represents PWM response for output voltage error.
The problem is - how can I use it to compute output impedance or Gvd(s) and Gvg(s) transfer functions? Does j(s) source even matter (it's connected parallel to voltage and their are both "ideal"). Isn't output impedance just LC circuit output impedance? I guess I make some elementary mistake, and I'd really appreciate some step-by-step solution (no calculations of course, just what are essential parts of this analysis and what is related to another thing).
Feel free to ask me any questions, I'm looking forward to any answer.
