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admin 发表于 2019-9-11 16:42:00

PCB走线载流计算器

<div class="d">

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<table cellpadding="0" cellspacing="0" class="vwtb"><tbody><tr><td id="article_content"><script type="text/javascript">
//走线载流
function Trace_width_calc()
{
        var current=document.getElementById("input2_current").value
        var temp=document.getElementById("input2_temp").value
        var temp_unit=document.getElementById("input2_temp_unit").value;
        if (temp_unit=="F")
        {
                temp=temp*5/9;
        }
        var thickness=document.getElementById("input2_thickness").value*document.getElementById("input2_thickness_unit").value;
        var internal=Math.pow((current/(0.024*Math.pow(temp,0.44))),1/0.725)*2.54*2.54/1e6
        var internal_width=internal/thickness
        internal_width=internal_width/document.getElementById("input2_internal_width_unit").value
       
        var external = Math.pow((current/(0.048*Math.pow(temp,0.44))),1/0.725)*2.54*2.54/1e6
        var external_width = external/thickness
        external_width=external_width/document.getElementById("input2_external_width_unit").value
       
        document.getElementById("input2_internal_width").value=internal_width.toPrecision(4)
        document.getElementById("input2_external_width").value=external_width.toPrecision(4)
}
</script>
<table class="gridtable">
<tbody>
                  <tr>
<th colspan="4" class="apphot">PCB走线载流计算器</th>
</tr>
<tr>
<td>电流:</td>
<td>
    <input id="input2_current" onkeyup="Trace_width_calc()" value="1" name="input2_current" type="text">
</td>
<td>安培</td>
<td rowspan="5"><div align="center"><p><img src="/template/rtj1009_010/image/jisuan/pcbzxzl.png" data-bd-imgshare-binded="1"></p></div></td>
    </tr>
<tr>
<td>铜厚:</td>
<td>
    <input id="input2_thickness" onkeyup="Trace_width_calc()" value="1" name="input2_thickness" type="text">
</td>
<td>
    <select id="input2_thickness_unit" onchange="Trace_width_calc()" name="input2_thickness_unit">
      <option value="0.0035" selected="selected">oz/in.^2</option>
      <option value="2.54e-3">mil</option>
      <option value="0.1">mm</option>
      <option value="1e-4">um</option>
      </select>
</td>
</tr>
<tr>
<td>温升:</td>
<td>
    <input id="input2_temp" onkeyup="Trace_width_calc()" value="10" name="input2_temp" type="text">
</td>
<td>
    <select id="input2_temp_unit" onchange="Trace_width_calc()" name="input2_temp_unit2">
      <option value="C" selected="selected">C</option>
      <option value="F">F</option>
      </select>
</td>
</tr>
<tr>
<td>外层线宽:</td>
<td>
    <input name="input2_external_width" class="eda_input_res" id="input2_external_width" onkeyup="Trace_width_calc()" value="11.83" type="text">
</td>
<td>
    <select id="input2_external_width_unit" onchange="Trace_width_calc()" name="input2_external_width_unit">
      <option value="2.54e-3" selected="selected">mil</option>
      <option value="0.1">mm</option>
      </select>
</td>
</tr>
<tr>
<td>内层线宽:</td>
<td>
    <input name="input2_internal_width" class="eda_input_res" id="input2_internal_width" onkeyup="Trace_width_calc()" value="30.77" type="text">
</td>
<td>
    <select id="input2_internal_width_unit" onchange="Trace_width_calc()" name="input2_internal_width_unit">
      <option value="2.54e-3" selected="selected">mil</option>
      <option value="0.1">mm</option>
      </select>
</td>
</tr>
<tr>
<td colspan="4">说明:以上计算结果仅供参考</td>
</tr>
    </tbody></table></td></tr></tbody></table>

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万里星河 发表于 2020-7-22 14:41:15

66666666666赞赞赞

13680518923 发表于 2020-9-25 21:04:10

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tiandaochouqin 发表于 2020-10-24 07:38:37

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陈俊锦 发表于 2020-10-24 12:11:54

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coolboy 发表于 2020-10-29 08:20:23

脚本不错！！！！！！！！！！！！

初与久歌 发表于 2020-12-4 11:27:27

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Petrowell 发表于 2020-12-17 13:37:23

xiexiefenxiang

hylevil 发表于 2020-12-30 10:45:20

谢谢分享！！！！！！！

发表于 2021-1-15 10:59:46

脚本不错！！！

查看完整版本: PCB走线载流计算器