diff --git a/pcb_calculator/tracks_width_versus_current_formula.h b/pcb_calculator/tracks_width_versus_current_formula.h index 5253752dd9..a7ece28405 100644 --- a/pcb_calculator/tracks_width_versus_current_formula.h +++ b/pcb_calculator/tracks_width_versus_current_formula.h @@ -9,10 +9,10 @@ _HKI( "If you specify the maximum current, then the trace widths will be calcula "\n" "The formula, from IPC 2221, is\n" "
___I = K · ΔT0.44 · (W · H)0.725___
\n" -"where:\n" -"___I___ is maximum current in A\n" -"___ΔT___ is temperature rise above ambient in °C\n" -"___W___ is width in mils\n" -"___H___ is thickness (height) in mils\n" +"where:
\n" +"___I___ is maximum current in A
\n" +"___ΔT___ is temperature rise above ambient in °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" "" ); diff --git a/pcb_calculator/tracks_width_versus_current_formula.md b/pcb_calculator/tracks_width_versus_current_formula.md index 0171162793..69ca16a5e4 100644 --- a/pcb_calculator/tracks_width_versus_current_formula.md +++ b/pcb_calculator/tracks_width_versus_current_formula.md @@ -8,9 +8,9 @@ The calculations are valid for currents up to 35 A (external) or 17.5 A (interna The formula, from IPC 2221, is
___I = K · ΔT0.44 · (W · H)0.725___
-where: -___I___ is maximum current in A -___ΔT___ is temperature rise above ambient in °C -___W___ is width in mils -___H___ is thickness (height) in mils +where:
+___I___ is maximum current in A
+___ΔT___ is temperature rise above ambient in °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