Chris Basso APEC seminar 2011.pdf (pagesperso-orange.fr)Can you tell me the page number and/or the drawing figure number? I have both editions of his book.
Q: how does the CTR of your PC817A compare to the required CTA of the feedback path? IIRC the CTR of the PC817A is less than impressive, especially as a function of frequency.
I do not think your circuit is an accurate representation of those slides. Close, but no cigar.Chris Basso APEC seminar 2011.pdf (pagesperso-orange.fr)
I know it could be slightly different by using different optocouplers but i can't see any voltage over X1(primary side of the transformer). So, I don't know if PWM-CM works as expected as it should.
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