On 2023-Sep-28, at 3:55 AM, Tom Hunter wrote:
  Thank you very much Brent !!!
 Your explanation beautifully clarified how the H7441 works.
 I have asked the same question over at 
vcfed.org without an answer..
 I hope it is Ok to share to 
vcfed.org what you wrote as others are likely to struggle too
with the complexity of the H7441 in the future and 
vcfed.org is searchable.
 Thanks again for your time and effort to explain what I really struggled to understand.
 Tom 
Great.
With the basic form identified, if you're unfamiliar with buck converters, I'm
sure the AofE you mentioned (I've heard of the book but never seen it) must have some
discussion of their operation.