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support@nextpcb.comHere you'll find insights into PCB design, tech trends, assembly issues, and trending topics
in the general news media as they relate to printed circuit board technology.
As experts in the manufacture and assembly of printed circuit boards, we work to make our blog a helpful resource on PCB topics and the industries that we work with, including automotive, consumer electronics, aerospace and many more.
PCB layout design to analyze the circuit board unit, based on the function of the layout design, layout of all the components of the circuit, to comply with the following principles.
In the low-power RF PCB design, the standard FR4 material is used (good insulation properties, uniform material, dielectric constant ε = 4, 10%).
This is a big problem. We set aside other factors, just the PCB design aspects, share the following experience for reference exchange:
When I saw the PCB of a computer motherboard, I thought I was able to draw a great thing myself. Later when touched protel99se and entered the drawing board team, followed by Altium, Cadence, and so on. As the experience of the drawing board accumulated, more and more issues were noticed. A good PCB board is not only connected to the line.
51-100 POINTS
1-50 POINTS
Radiated EMI interference can come from an undirected source and an unintentional antenna. Conductive EMI interference can also come from a source of radiated EMI interference or caused by some board components. Once your board receives conductive interference, it resides in the PCB trace of the application circuit. Some common sources of radiated EMI interference include the components discussed in previous articles, as well as on-board switching power supplies, cables and switches, or clock networks.
There are many ways to solve EMI problems. Modern EMI suppression methods include using EMI suppression coatings, selecting appropriate EMI suppression parts, and EMI simulation design. This article starts with the most basic PCB layout and discusses the role of PCB layered stacks in controlling EMI radiation and design techniques.
Basic grounding method: There are three basic grounding methods in electronic equipment: single-point grounding, multi-point grounding, and floating ground.
With the increase in PCB routing courier, EMC design has to be considered by our electronic engineers. In the face of Electromagnetic Compatibility (EMC) design, there are five important attributes to consider when conducting EMC analysis of a product and design:
To popularize LED lamps, it is necessary not only to significantly reduce costs but also to solve technical problems. How to solve the problems of energy efficiency and reliability, Doug Bailey, vice president of marketing for Power Integrations, shared the experience of efficient and reliable LED driver design.
At present, electronic equipment is used in various electronic devices and systems, and printed circuit boards are still the main assembly method. Practice has proved that even if the schematic design of the circuit is correct and the printed circuit board is not properly designed, it will adversely affect the reliability of the electronic device. For example, if the two thin parallel lines of the printed board are in close proximity, a delay in the signal waveform is formed, and reflected noise is formed at the end of the transmission line. Therefore, when designing a printed circuit board, care should be taken to use the correct method.
Starting from the improvement of system electromagnetic compatibility, combined with the characteristics of hybrid integrated circuit technology, the problems that should be paid attention to and the specific measures taken in the design of hybrid integrated circuits are proposed.
In the circuit design, often only pay attention to improve the wiring density, or pursue uniform layout, ignoring the influence of the line layout on preventing interference, causing a large number of signals to radiate into the space to form interference, which may lead to more electromagnetic compatibility problems. Therefore, good wiring is the key to success in design.
Electromagnetic compatibility refers to the ability of an electronic device to work in a coordinated and efficient manner in various electromagnetic environments. The purpose of the electromagnetic compatibility design is to enable the electronic device to suppress various external interferences, enable the electronic device to work normally in a specific electromagnetic environment, and at the same time reduce the electromagnetic interference of the electronic device itself to other electronic devices.
There are two main roles.
1: This board's PCB design requirements are not high, use finer lines, automatically cloth it.
Via is one of the important components of a multilayer PCB, and drilling costs typically account for 30% to 40% of PCB board costs.
Total 7 things.
75. -48V to -48V signal is only the return flow, there is no convergence to other places? If you can not, please explain the reason in the remarks column.
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