haskal
/
kicad
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Fix not displayed html char (&sdot replaced by &middot) (perhaps Windows specific) 

Fixes #10152
https://gitlab.com/kicad/code/kicad/issues/10152
This commit is contained in:
jean-pierre charras 2021-12-28 21:04:37 +01:00
parent 3f711b8958
commit 96c3ce14e4
2 changed files with 16 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
pcb_calculator/tracks_width_versus_current_formula.h
View File

@ -7,12 +7,12 @@ _HKI( "If you specify the maximum current, then the trace widths will be calcula
"\n"
"The calculations are valid for currents up to 35 A (external) or 17.5 A (internal), temperature rises up to 100 °C, and widths of up to 400 mils (10 mm).\n"
"\n"
"The formula, from IPC 2221, is \n"
"<center>___I = K &sdot; &Delta;T<sup>0.44</sup> &sdot; (W &sdot; H)<sup>0.725</sup>___</center> \n"
"where: \n"
"___I___ is maximum current in A \n"
"___&Delta;T___ is temperature rise above ambient in &deg;C \n"
"___W___ is width in mils \n"
"___H___ is thickness (height) in mils \n"
"___K___ is 0.024 for internal traces or 0.048 for external traces \n"
"The formula, from IPC 2221, is\n"
"<center>___I = K &middot; &Delta;T<sup>0.44</sup> &middot; (W &middot; H)<sup>0.725</sup>___</center>\n"
"where:\n"
"___I___ is maximum current in A\n"
"___&Delta;T___ is temperature rise above ambient in &deg;C\n"
"___W___ is width in mils\n"
"___H___ is thickness (height) in mils\n"
"___K___ is 0.024 for internal traces or 0.048 for external traces\n"
"" );

16
pcb_calculator/tracks_width_versus_current_formula.md
View File

@ -6,11 +6,11 @@ The controlling value is shown in bold.
The calculations are valid for currents up to 35 A (external) or 17.5 A (internal), temperature rises up to 100 °C, and widths of up to 400 mils (10 mm).
The formula, from IPC 2221, is
<center>___I = K &sdot; &Delta;T<sup>0.44</sup> &sdot; (W &sdot; H)<sup>0.725</sup>___</center>
where:
___I___ is maximum current in A
___&Delta;T___ is temperature rise above ambient in &deg;C
___W___ is width in mils
___H___ is thickness (height) in mils
___K___ is 0.024 for internal traces or 0.048 for external traces
The formula, from IPC 2221, is
<center>___I = K &middot; &Delta;T<sup>0.44</sup> &middot; (W &middot; H)<sup>0.725</sup>___</center>
where:
___I___ is maximum current in A
___&Delta;T___ is temperature rise above ambient in &deg;C
___W___ is width in mils
___H___ is thickness (height) in mils
___K___ is 0.024 for internal traces or 0.048 for external traces