Three tips on how to reduce PCB design risks
In the PCB design process, if possible risks can be predicted in advance and avoided in advance, the success rate of PCB design will be greatly improved. When evaluating projects, many companies will have an indicator of the success rate of PCB design per board.
The key to improving the success rate of a board lies in the signal integrity design. There are many product solutions for current electronic system design, and chip manufacturers have already completed them, including what chips to use, how to build peripheral circuits, and so on. In many cases, hardware engineers hardly need to consider the circuit principle, and only need to make the PCB by themselves.
But it is precisely in the PCB design process that many companies have encountered difficulties, either the PCB design is unstable or does not work. For large enterprises, many chip manufacturers will provide technical support and guide PCB design. However, it is difficult for some SMEs to get support in this regard. Therefore, you must find a way to complete it yourself, so many problems arise, which may require several versions and a long time to debug. In fact, if you understand the design method of the system, these can be completely avoided. Next, we will talk about three techniques to reduce the risk of PCB design.
1. It is best to consider the signal integrity in the system planning stage. The whole system is built like this, can the signal be received correctly from one PCB to another? This needs to be evaluated in the early stage, and it is not difficult to evaluate this problem. A little knowledge of signal integrity can be done with a little simple software operation.
Second, in the PCB design process, use simulation software to evaluate the specific wiring and observe whether the signal quality can meet the requirements. The simulation process itself is very simple. The key is to understand the principle of signal integrity and use it for guidance.
Third, in the process of making PCB, risk control must be carried out. There are many problems that the simulation software has not yet solved, and the designer must control it. The key to this step is to understand where there are risks and how to avoid them. What is needed is signal integrity knowledge.
If these three points can be grasped well in the PCB design process, then the PCB design risk will be greatly reduced, the probability of error after the board is printed will be much smaller, and the debugging will be relatively easy.
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