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kicad/pcb_calculator/attenuators/pi_formula.md

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Minor editorial changes in PCB calculator, part 1
2021-10-14 22:54:17 +00:00
### Pi Attenuator
Fix issues in translatable strings in .md files: - replace "&sdot;" not displayed on Windows (for some reason) by "&middot" - replace the double space at end of lines by the tag <br> A translatable string cannot ends by 2 spaces, because they are not really visible
2021-10-23 15:52:58 +00:00
___a___ is attenuation in dB<br>
___Z<sub>in</sub>___ is desired input impedance in &#x2126;<br>
___Z<sub>out</sub>___ is desired output impedance in &#x2126;<br>
convert last formula to markdown. Make them translatable.
2019-09-29 16:54:14 +00:00
Fix issues in translatable strings in .md files: - replace "&sdot;" not displayed on Windows (for some reason) by "&middot" - replace the double space at end of lines by the tag <br> A translatable string cannot ends by 2 spaces, because they are not really visible
2021-10-23 15:52:58 +00:00
___L = 10<sup>a/20</sup>___<br>
___A = (L+1) / (L&minus;1)___<br><br>
Minor editorial changes to PCB calculator, part 2 Don't use substripts in HTML if there is just a number in the subscript: "R1", not "R<sub>1</sub>", except for characteristic impedance. And of course still use "Z<sub>in</sub>", not "Zin". This is also consistent with the images.
2021-10-31 17:28:45 +00:00
___R2 = (L&minus;1) / 2&middot;&radic;(Z<sub>in</sub> &middot; Z<sub>out</sub> / L)___<br>
___R1 = 1 / (A/Z<sub>in</sub> &minus; 1/R2)___<br>
___R3 = 1 / (A/Z<sub>out</sub> &minus; 1/R2)___