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是excel格式的。
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8 a( ~. Z. \ ^$ L8 ETrace Width Calculator
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User Inputs:5 P {2 J5 k4 z- n; `: o$ h
- L% [% c7 X" N. DCurrent: I 1 [Amps]. }+ d! ^" L9 [# f6 N
Temperature Rise: ▲T 10 [Degrees C]0 W; T! D4 R D
Conductor Thickness: t 1 [oz. per sq. ft.]
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& g6 C# r2 s. ~3 B2 gResults:) ^& Q: \* R7 C% B; s
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Internal Layer Results: 8 k3 {! ?# j; m
Required Trace Width: Wi 39.86495008 [Mils]
. M# j2 m: S) ?% F0 V% NCopper Area: 54.93390121 [Square Mils]
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External Layer Results:
" g, F9 _; |5 e! w3 vRequired Trace Width: We 9.798650996 [Mils]
) a2 V$ P- `3 V$ O& L( q# gCopper Area: 13.50254107 [Square Mils]
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* l3 `- |! R! w: l eThese Formulas are approximations!
3 T3 {' [8 l+ G3 D- o2 |; N2 P% G$ h' wThey should not be used when a high degree of accuracy is required.; p% P: I+ H" m) c) y5 M8 S2 ^
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