Daniel teaches you how to solve EMC problems in PCB design

With the advent of the high-speed design era, PCB design has evolved from a simple pendulum device and cable to a multidisciplinary major based on electrical engineering, integrating electronics, heat, machinery, and chemicals. The quality of PCB design directly determines the quality and cycle of product development, and becomes a key link in the product design chain. Today, with the socialization division becoming more and more detailed, PCB design has gradually become an independent discipline. In Europe and America, professional design companies have vigorously promoted the development and application of new technologies and products.

In the past few years, professional PCB design companies have sprung up, and a number of professional PCB design companies with high design quality and level have emerged. As an emerging force, these companies have improved the domestic PCB design industry. Grade, from the previous PCB LAYOUT (pull, drawboard) to the full analysis of the simulation analysis, layout, routing, technical support PCB full process services.

As an emerging industry, the PCB design industry has its own unique characteristics:

1. The entry threshold is low. The entry is simple and the starting capital requirements are not high.

2. There are many softwares. Each has its own advantages and disadvantages, and it is important to choose the right tool.

3, high experience requirements, must have a deep professional accumulation and broad knowledge.

4, must have scale; software platform, database, SI, EMC, DFX must be responsible for each person, each technology point needs at least 2-3 people, optical platform technology must have at least 10 people, considering the special service for customers The needs of the design team, professional design companies must have a scale of more than 20 people to survive for a long-lasting and effective.

As the density of electronic components on the PCB is getting larger and larger, the traces are getting narrower, the trace density is getting higher and higher, and the frequency of the signals is getting higher and higher. EMC (electromagnetic compatibility) and EMI are inevitably introduced. (Electromagnetic interference), so the electromagnetic compatibility analysis and application of electronic products is very important. However, the current situation in domestic and international is that EMC analysis and simulation in the PCB design process is a weak link compared with IC design. At the same time, EMC simulation analysis is now taking an increasingly important role in PCB design.

Although the PCB company has formed a large scale, the solution to the EMC problem is relatively weak. For example, a project with EMC problems in the PCB design with considerable technical difficulty found a fast package platform. They are a very reputable big company. They are not willing to publish the outsourced content on our website because of the confidentiality of the company's projects. Instead, they directly find us and ask them to help them find the service provider as soon as possible.

There are many PCB design companies in China that claim to be able to design EMC, but there are very few PCB design companies that can really pay for customers to cooperate on EMC cooperation projects. Due to the confidentiality of employers, we have contacted many professional PCB design companies on the platform. But found that many professional EMC companies and PCB design companies are unable to complete this project.

Because their projects cover almost all IT and communication interfaces (such as AUDIO, VIDEO, network port, 232, 422, 485, VGA, S terminal, E1, etc.), there are up to 16 on-board crystal oscillators and crystals. There are many radiators and complicated functions, and they require that they must pass the CLASS B of EN55022, which is quite difficult.

Finally, after ten days of hard work, we finally selected one of our quality service providers after repeated communication between employers and service providers. This service provider has analyzed and digested itself, through the careful PCB design and circuit processing, combined with the necessary structure and cable design. After the first docking, the unpacking test passed CLASS A and passed the CLASS B as a whole, thus winning the employer. Trust. After seeing the employer’s satisfactory response, the staff responsible for the project smiled happily.

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Jinan Keya Electron Science And Technology Co., Ltd. , https://www.keyaservo.com

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