Sharing of practical skills in high frequency PCB design

The goal of PCB design is smaller, faster and lower cost. Because the interconnection point is the weakest link in the circuit chain, in RF design, the electromagnetic property at the interconnection point is the main problem faced by engineering design. It is necessary to investigate each interconnection point and solve the existing problems. The […]

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Research on power integrity of PCB circuit

Concept of power integrity Power integrity (PI) is to provide a stable and reliable power distribution system (PDS) for board level system. In essence, it is to effectively control the power and ground noise when the system is working, provide sufficient energy for the chip in a wide frequency band, and fully suppress the voltage […]

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Notes on the design of heat dissipation system in PCB

In PCB design, circuit design is the most basic for engineers. However, many engineers tend to be careful in the complex and difficult PCB design, but ignore some points to pay attention to in the basic PCB design, resulting in errors. It may cause the perfect circuit diagram to have problems or be completely broken […]

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Experience summary of PCB ESD Design

Recently, we are doing ESD test of electronic products. From the test results of different products, we find that ESD is a very important test: if the circuit board is not well designed, the introduction of static electricity will cause product crash or even component damage. In the past, we only noticed that ESD would […]

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How to use BGA signal wiring technology in PCB design

Ball grid array (BGA) packaging is a standard packaging type for various highly advanced and complex semiconductor devices such as FPGA and microprocessor. BGA packaging technology for embedded design is progressing with the development of chip manufacturers. This kind of packaging is generally divided into standard and micro BGA. These two types of packages have […]

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High speed PCB design strategy sharing

At present, the design of high-speed PCB is widely used in communication, computer, graphics and image processing and other fields. In these areas, engineers use different high-speed PCB design strategies. In the field of telecommunications, the design is very complex. In the application of data, voice and image transmission, the transmission speed has been much […]

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Summary of empirical formula of PCB line width and current

There are many empirical formulas, relationship tables and software on the Internet about PCB line width and current. This paper sorts them out on the Internet to provide convenience for engineers when designing PCB. The following is a summary of eight current and linewidth relationship formulas, tables and calculation formulas. Although they are different (roughly […]

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Some experience and lessons of PCB design

When I saw the PCB of the computer motherboard, I thought how wonderful it was to be able to draw it by myself. Later, when I came into contact with Protel99SE, I stepped into the team of drawing boards, and then Altium, cadence and so on. With the accumulation of experience in drawing boards, I […]

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Analysis of high frequency circuit wiring skills in PCB design

1. Multilayer board wiring High frequency circuits often have high integration and high wiring density. The use of multilayer board is not only necessary for wiring, but also an effective means to reduce interference. In the PCB layout stage, the reasonable selection of a certain number of layers of PCB size can make full use […]

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