During PCB design,we often encounter various issues,such as impedance matching and EMI regulations.This article summarizes some high-speed PCB-related FAQ,hoping to be helpful. 1.How to Consider Impedance Matching When Designing High-speed PCB Schematics? Impedance matching is a key design factor in high-speed PCB circuit design.Impedance values are closely related to the routing method.such as whether the…
Introduction Switch Mode Power Supplies (SMPS) have become ubiquitous in modern electronics due to their high efficiency, compact size, and excellent power handling capabilities. However, the performance of an SMPS design heavily depends on the quality of its printed circuit board (PCB) layout. A poor PCB layout can lead to numerous issues including excessive electromagnetic…
Introduction Flexible printed circuit boards (flex PCBs) have become essential components in modern electronics, enabling innovative designs in industries ranging from consumer electronics to aerospace. As devices become smaller, lighter, and more complex, the demand for high-quality flex PCB manufacturers has surged. This article explores the key aspects of flex PCB manufacturing, including materials, processes,…
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The method of using transparent tape as a protective layer to make printed circuits is simple and practical, and the quality of the circuit boards produced is good. The specific steps are as follows: (1) Cut a piece of copper-clad board, use water-abrasive sandpaper to smooth the burrs around it, use decontamination powder to treat…
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…
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…
PCB Design Specifications for LED Switching Power Supply In any switching power supply design, the physical design of the PCB board is the last link. If the design method is not appropriate, the PCB may radiate too much electromagnetic interference, causing the power supply to work unstably. The following is an analysis of the matters…
The following content of this article introduces the ten most effective design rules that electronic design engineers should keep in mind and practice when using design software for PCB layout design and commercial manufacturing. Engineers do not need to implement these laws in chronological order or relative importance; simply following them all can dramatically change…
Electronic circuit diagrams are used to represent the composition, structure, nominal value of components and other information of actual electronic circuits. The actual circuit situation can be known through the circuit diagram. In this way, when we analyze the circuit, we don’t have to turn the physical object over and over again, but just take…
This article delves into the intricacies of 4PCB assembly processes, exploring techniques, tools, and best practices that enhance efficiency in manufacturing, ensuring high-quality results and optimal productivity for electronic production.
With the development of technology and the advancement of science and technology, electronic and electrical products are moving towards smaller size and lighter weight, and are also entering more markets, such as automation, automobiles, instrumentation, and medical. Electronic devices are facing challenges such as increasingly powerful functions and increasingly smaller PCB sizes. In order to…
Introduction: Challenges Engineers Face in an Era of Evoulution Tight schedules sometimes cause engineers to ignore key details beyond VIN, VOUT, and load requirements, leaving power supply design for PCB applications as an afterthought. Unfortunately ,these overlooked details can become hard to diagnose problems ,when pcb is produced.For example, after a lengthy debugging process, a…
PCB Layout for Switching Regulator Design Switch-mode power supplies are used to convert one voltage to another. The efficiency of this type of power supply is usually very high, so in many applications, it replaces linear regulators. Switching Frequency and Switching Transitions Switching-mode power supplies operate at a certain switching frequency. The switching frequency can…
All electronic engineers must know that PCB design plays a very important role in design. Taking the power supply as an example, PCB design will directly affect the EMC performance, output noise, anti-interference ability, and even basic functions of the power supply. The PCB wiring of the power supply part is slightly different from other…