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setupkicad6trackwidth [2022/04/15 16:39]
gongyu 		setupkicad6trackwidth [2022/04/17 20:29] (当前版本)
gongyusu
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-## 第23节：控制走线宽度+## 第22节：控制走线宽度
 [[kicad]] [[kicad]]
 +### 为何要控制布线的宽度?​
  
-When you start a new project in Pcbnew, the only trace width available is 0.25 mm (9.84 mils). If you need to create a trace with a different width, you will need to create a custom track width for that value.+### 如何控制布线的宽度?​ 
 +当你刚开始使用PCB编辑器进行一个新的项目设计的时候，系统只有一种默认的线宽 - 0.25mm(9.84mils)， 如果你想改变走线的宽度，你需要创建一个定制化的线宽。例如我们要让一个电源走线能够在30mm的长度传输1A的电流，最高温升不超过10摄氏度，使用KiCad自带的计算器计算得到走向的线宽为大约0.3mm，我们可手工设定这个电源网络对应的走线宽度。 ​
  
-For example, in the Trace Width Calculator recipe, I calculated that the minimum width for a power trace that can convey 1 A over 30 mm with a maximum of 10 degrees Celsius temperature rise is 0.30 mm. In Pcbnew, there is drop-down menu from where you can manually select the desired ​width of a track, titled “Track”.+The Track drop-down menu; there is only one width available by default.
  
-Figure 26.1: The Track drop-down menu; there is only one width available by default. 
 By default, this drop-down offer a single track width option: 0.250 mm. In this recipe, you will learn how to add '0.30 mm' as a track width option in the top toolbar drop-down menu.  By default, this drop-down offer a single track width option: 0.250 mm. In this recipe, you will learn how to add '0.30 mm' as a track width option in the top toolbar drop-down menu. 
 You can also use the exact same way to add custom Via sizes. You can also use the exact same way to add custom Via sizes.
  
-In Pcbnew, start by bringing up the Board Setup window. You can do this in three ways: +我们也可以用这种方式来添加定制化的过孔尺寸。 
-1. Click on File —> ​Board Setup +在PCB编辑器中，启动电路板设置按钮，我们可以使用下面的三种形式之一: 
-2. Click on the Track drop-down, and then “Edit pre-defined sizes...”. +  ​- ​1. 点击"​文件" ​—> ​电路板设置 
-3. Click on the Via drop-down, and then “Edit pre-defined sizes...”. +  ​- ​2. 点击走线下拉菜单 ​-> "​编辑预设尺寸...." 
-In any case, you will see the same result (Figure 26.2) .+  ​- ​3. 点击过孔下拉菜单 ​-> "​编辑预设尺寸....” 
 +无论任何方式，都会得到下面的结果:​
  
 +电路板设置窗口，选中的走线和过孔
  
- ​Figure 26.2: The Board Setup window with the Tracks & Vias pane selected. 
 Select the Tracks & Vias pane, under Design Rules. There, you will see three columns: Tracks, Via and Differential Pairs. There’s a “+” button at the bottom of each column. Select the Tracks & Vias pane, under Design Rules. There, you will see three columns: Tracks, Via and Differential Pairs. There’s a “+” button at the bottom of each column.
-Let’s add a few custom widths and Vias. To add each one, click on the “+” button and type in the numbers in the relevant row. 
  
-In Figure ..., you can see my custom tracks and vias.+来添加几个定制的宽度和过孔尺寸。每增添一个，点击"​+"​按钮，在相应的框里输入你要的数值， ​
  
-Figure 26.3: The Board Setup window with the Tracks & Vias pane selected; I have added several new custom track widths and vias.+在这个图中你可以看到我定制的走线和过孔
  
-Click '​Ok'​ to commit the changes, and confirm that the Track and Via drop-down menus show the new values (Figure 26.4).+图: 电路板设置窗口， 选中的走线和过孔以及增加的定制化线宽和过孔
  
- ​Figure 26.4: The Track Width drop-down contains a custom value.+点击"​OK"​确认改变，线宽和过孔的下拉菜单变成下面的新值 
 + 
 +图: 线宽下拉菜单包含了定制的值
  
 Let’s test that you can create a trace with the custom with. First, select the '0.30 mm' option from the track width drop-down menu. Then, use the '​X'​ shortcut or click on the Route Tracks button from the right toolbar to enter the track drawing mode. Draw a new track in the Page. Type '​Esc'​ to end the drawing, and choose the '0.25 mm' option from the track width menu. Draw another trace and compare its width to the first. I have also added a third trace, with 0.40 mm width. Notice that the traces have a different width? Let’s test that you can create a trace with the custom with. First, select the '0.30 mm' option from the track width drop-down menu. Then, use the '​X'​ shortcut or click on the Route Tracks button from the right toolbar to enter the track drawing mode. Draw a new track in the Page. Type '​Esc'​ to end the drawing, and choose the '0.25 mm' option from the track width menu. Draw another trace and compare its width to the first. I have also added a third trace, with 0.40 mm width. Notice that the traces have a different width?
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 <WRAP half column> <WRAP half column>
-上一节：[[addpart2kicadpcb|第22节：添加一个电容到已经layout好的PCB板上]]+上一节：[[addpart2kicadpcb|第21节：添加一个电容到已经layout好的PCB板上]]
 </​WRAP>​ </​WRAP>​
  
 <WRAP half column> <WRAP half column>
-下一节：[[cackicadtrackwidth|第24节：如何计算合适的走线宽度？]]+下一节：[[cackicadtrackwidth|第23节：如何计算合适的走线宽度？]]
 </​WRAP>​ </​WRAP>​
 </​WRAP>​ </​WRAP>​