Three skills sharing of PCB special routing

Before explaining the inspection after PCB wiring, let’s introduce three special wiring skills of PCB. The routing of PCB layout will be described from three aspects: right angle routing, differential routing and serpentine Routing: 1、 Right angle routing (three aspects) The influence of right angle routing on the signal is mainly reflected in three aspects: […]

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What is the 3W principle in PCB design

In PCB design, in order to reduce crosstalk between lines, ensure that the line spacing is large enough. When the line center spacing is not less than 3 times the line width, most electric fields can not interfere with each other, which is the 3W principle. Meeting the 3W principle can reduce the crosstalk between […]

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The four principles of PCB drawing review are introduced

1. Whether the system layout ensures the rationality or optimization of wiring, whether it can ensure the reliable operation of wiring and whether it can ensure the reliability of circuit operation. During layout, it is necessary to have an overall understanding and planning of signal direction and power supply and ground wire network. 2. Whether […]

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Detailed introduction of grounding technology in PCB circuit board

In electronic design, the most common technology is the grounding of circuit board. From the most common single analog circuit loop grounding, simple digital circuit loop grounding to the mixed grounding of analog and digital circuits, all these grounding methods show the development of electronic design. If the product you design has other requirements, for […]

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Notes to design of PCB power board layout

I have worked on the layout of the power board for several years and summarized some main points for attention, mainly from the following aspects: 1、 Power loop part The most important part of the power board is the power circuit. In the layout, you should first know the circuit properties of the distributed power […]

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Sharing of practical skills in PCB multi-layer board design

PCB multi-layer board design technology, it can be said that multi-layer board and double-layer board design are similar, and even wiring is easier. If you have double-layer board design experience, it is not difficult to design multiple layers. First, you should divide the layered structure. In order to facilitate the design, it is best to […]

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Analysis of five key points in PCB design

PCB circuit board is the basic electronic component of all electronic circuit design. As the main support, it carries all the devices that make up the circuit. The function of PCB is not only to combine scattered components, but also to ensure the regularity of circuit design and avoid the confusion and errors caused by […]

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Introduction of 20h principle in PCB design

Of course, the principle of reducing the power source distance to 20h in the formation is also the principle of restraining the relative radiation distance of the formation. Electromagnetic interference will be radiated outward at the edge of the plate. Shrink the power supply layer so that the electric field is conducted only within the […]

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