Which is the right tool to use

[Didier Lachieze]

You can use the spreadsheet application. See the attached simple example where U0 and Ufb are named cells, column C contains the R2 predefined values (you can put what you want here) and column D has the column-wide formula: "=C:C*((U0/Ufb)-1)"
Just enter the values of U0 and Ufb you want to design for and you’ll get in columns C and D the pairs of R2/R1 values.
You can customize this spreadsheet as you need.
   

  leprechaun.hpappdir.zip (Size: 945 bytes / Downloads: 8)