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是excel格式的。
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Trace Width Calculator
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2 a, Q% @, d0 v& }4 LUser Inputs:% Q: J) m, Y; S6 j
; P. M; t* ~' m8 P& x/ k0 Z' HCurrent: I 1 [Amps]
( y- T" S6 j, v7 Z; @; p! I& dTemperature Rise: ▲T 10 [Degrees C]
- p& l( Y9 Q N' d" jConductor Thickness: t 1 [oz. per sq. ft.]
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/ s2 d! N1 f5 W7 {; n4 LResults:
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Internal Layer Results: 2 Z& d/ g$ p4 z- a% s1 o0 h; S* ^
Required Trace Width: Wi 39.86495008 [Mils]
( u" r- h6 }. C/ V! p( RCopper Area: 54.93390121 [Square Mils]
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External Layer Results:
; R2 `+ }2 } f! u9 \Required Trace Width: We 9.798650996 [Mils]
6 J1 }" V# f( p' v% n3 n1 n, l$ \. i3 lCopper Area: 13.50254107 [Square Mils]
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/ [; [0 r+ Y- j/ ]NOTE:: n5 u0 Y* a G# C' U& s& ^
These Formulas are approximations!, S/ ~2 I8 J/ f& w( M- z
They should not be used when a high degree of accuracy is required.
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发表于 2008-3-20 17:14
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支持！
反对！
发表于 2015-7-17 07:18
发表于 2015-8-30 14:04
