Once you see it, you can draw multilayered automobile circuit boards

Once you see it, you can draw multilayered automobile circuit boards

Circuit board manufacturing, circuit board design and PCBA processing manufacturers will explain it to you, so that you can draw multilayer automobile circuit boards without worry

In the face of electronic products with higher and higher integration of hardware platforms and more and more complex systems, PCB layout should have a modular thinking, requiring the use of modular and structured design methods in both hardware schematic design and PCB wiring.

As a hardware engineer, on the premise of understanding the overall architecture of the system, first of all, we should consciously integrate the modular design idea into the schematic diagram and PCB wiring design, and plan the basic idea of the layout of the automobile PCB in combination with the actual situation of the automobile PCB.

The placement of fixed components is similar to the placement of fixed holes, but also pays attention to a precise location. This is mainly placed according to the design structure. Center and overlap the silk screen of components and structures. After the fixed components on the board are placed, the signal flow direction of the whole board can be combed according to the principle of proximity of the flying line and the principle of signal priority.

In order to facilitate the search of components, it is necessary to map the schematic diagram and PCB so that they can map each other, referred to as interaction. By using interactive layout, components can be quickly located, thus reducing design time and improving work efficiency.

(1) In order to achieve the interaction between schematic and PCB, it is necessary to execute the menu command "Tools - Cross Selection Mode" in both schematic editing interface and PCB design interaction interface to activate cross selection mode.

(2) As shown in Figure 4, it can be seen that after a component is selected on the schematic diagram, the corresponding component on the PCB will be selected synchronously; On the contrary, after a component is selected on the automobile circuit board, the corresponding component on the schematic diagram will also be selected.

This paper introduces a function of component arrangement, that is, arranging in a rectangular area, which can be combined with component interaction at the initial stage of layout to easily separate a pile of messy components by module and place them in a certain area.

(1) Select all components of one module on the schematic diagram, and then all components corresponding to the schematic diagram on the PCB are selected.

(2) Execute the menu command "Tools - Component placement - Arrange in rectangular area".

(3) Select a range in a blank area on the automobile circuit board, and then the components of this function module will be arranged in the range selected in this box. With this function, all functional modules on the schematic diagram can be quickly partitioned.

Modular layout and interactive layout are inseparable. Using interactive layout, select all components of the module on the schematic diagram and arrange them on the PCB one by one. Next, you can further refine the IC, resistor and diode in the layout, which is called modular layout.

In modular layout, you can split the schematic editing interface and PCB design interactive interface through the "Vertical Split" command, so that we can view the view and quickly layout. Circuit board manufacturing, circuit board design and PCBA processing manufacturers will explain it to you, so that you can draw multilayer automobile circuit boards without worry.