aluminum pcb
Best PCB Design Methods: Six Things to Consider When Selecting PCB Components Based on Component Packages. All examples in this article were developed using the Multisim design environment, but the same concepts apply even when using different EDA tools. 1.Consider Component Package Selection Throughout the schematic drawing phase, you should consider the component package and…
As an important part of PCB design, copper coating, whether it is domestic Qingyuefeng PCB design software or some foreign Protel and PowerPCB, all provide intelligent copper coating function. So how to coat copper well? The author of this article shares some of his ideas with you, hoping to benefit peers. The so-called copper coating…
Electronic circuit diagrams are used to represent the composition, structure, nominal value of components and other information of actual electronic circuits. Circuit diagrams can tell the actual situation of circuits. In this way, when we analyze circuits, we don’t have to turn the real thing over and over again, but just take a drawing. When…
According to statistics, in the United States: the direct losses caused by surges to various industries, such as shutdowns, time loss, equipment maintenance, and premature equipment replacement, are as high as 26 billion US dollars each year. In China, according to relevant statistics, 63% of electrical products that have problems during the warranty period are…
When testing PCB boards, we should pay attention to some details in order to better ensure product quality. When testing PCB boards, we should pay attention to the following 9 tips. 1.It is strictly forbidden to use grounded test equipment to contact TV, audio, video and other equipment with electrified bottom plate to test PCB…
This article analyzes the common problems in mobile phone electromagnetic compatibility testing, including electrostatic discharge immunity test, electrical fast transient pulse group immunity test, radiated interference and conducted interference performance test, and puts forward corresponding suggestions for improving the electromagnetic compatibility performance of mobile phones. 1.Electrostatic discharge immunity test 1.1 Common problems in electrostatic discharge…
There are many ways to solve EMI problems. Modern EMI suppression methods include: using EMI suppression coatings, selecting appropriate EMI suppression parts and components, and EMI simulation design. This article starts from the most basic PCB layout and discusses the role and design techniques of PCB layer stacking in controlling EMI radiation. Power bus Reasonably…
When a PCB board has completed layout and routing, and the connectivity and spacing are checked without error, is the PCB completed? The answer is of course no. Many beginners, including some experienced engineers, often rush through the work and ignore post-design inspection due to time constraints, impatience, or overconfidence. As a result, some very…
some people say that there are only two types of electronic engineers in the world:those who have experienced electromagnetic interference and those who have not .With the increase in the speed of pcb routing,electromagnetic compatibility design is an issue that the engineer have to consider .when facing a design, when conducting an EMC analysis of…
PCB board design is a compulsory course for electronic engineers, and it is not as easy as it seems to design a perfect PCB board. A perfect PCB board not only needs to have reasonable component selection and setting, but also needs to have good signal conduction performance. This article will introduce and share the…
Power bus Reasonably placing capacitors of appropriate capacity near the power pins of IC can make the jump of IC output voltage faster. However, the problem does not end there. Due to the limited frequency response characteristics of capacitors, capacitors cannot generate the harmonic power required to drive IC output cleanly over the full frequency…
Misunderstanding 1 It is believed that differential signals do not need a ground plane as a return path, or that differential traces provide return paths for each other. The reason for this misunderstanding is that people are confused by surface phenomena or do not have a deep enough understanding of the mechanism of high-speed signal…
The process of printed circuit board from light board to circuit pattern is a relatively complex physical and chemical reaction process. This article analyzes its last step – etching. At present, the typical process of printed circuit board (PCB) processing adopts “graphic electroplating method”. That is, first pre-plating a layer of lead-tin anti-corrosion layer on…
Embedded design is a huge project. Today, let’s talk about several precautions in hardware circuit design. First, let’s understand the embedded hardware architecture. We know that the CPU is the soul of this system, and all peripheral configurations are related to it. This also highlights a feature of embedded design: hardware can be tailored. When…
The last issue explained the common DRC and correction methods in PCB design. This issue introduces what aspects are included in the general Checklist inspection. 1 Netlist comparison Confirm the report output by the netlist comparison tool to ensure that the netlist is consistent with the PCB board.The final board imports the latest schematic to…
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