2015年3月22日星期日

Multilayer PCB design method (X)

11.4.2 The electrical Multilayer pcb segmentation method
(2) Click the Add button, the pop-up as shown in figure 11 to 15 electric layer segmentation in Settings dialog.

As shown in figure 11 to 15 in the dialog, Track Width used to set the drawing border line Width, but also in the electric network within the same region between the insulation of the spacing, so usually will Track Width is larger. Suggest that readers will input unit when the input value. If only enter the Numbers in the film, not the input unit, the system will default to the current PCB units in the editor.

Within segmentation of the specified Layer option is used to set electric Layer, here can choose electric power & GND inside Layer. In this case, there are many kinds of voltage grade, so you need to split the Power within the electrical layer to provide different levels of voltage components.

Connect to the.net option is used to specify the divided region is connected network. Usually in electric layer is used for power supply and network layout, but in the Connect to net the drop-down list as you can see, the inner layer of the whole network can be connected to the network signal, used in signal transmission, don't just general designer. Weak signals required by the voltage and current, small requirement to the wire, and power supply current is big, need a smaller equivalent internal resistance.So general signal in signal layer line, dedicated to the power supply and electrical layer network connections.

Ms Grace Zhang
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Oversea sales
Wonderful PCB
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