Andwin PCB Blog
Motor Drive PCB Layout Guidelines Motor drive ICs deliver large amounts of current and dissipate large amounts of electrical energy. Typically, energy is dissipated into the copper areas of the printed circuit board (PCB). To ensure adequate cooling of the PCB, special PCB design technology is required. In the first part of this article, you…
The close relationship between pcb and automobiles Three major technical characteristics of 77GHz automotive radar system PCB board Three major technical characteristics of 77GHz automotive radar system PCB board As electronic systems in cars and other vehicles change, many former military technologies are slowly being applied to ordinary cars. For example, more models on the…
Since long-term contact of copper with air will cause copper to oxidize, we need to do some processing on the PCB surface to ensure the solderability and electrical performance of the PCB board.Common processing techniques currently include: Hot Air Solder Leveling (HASL hot air leveling), OSP (anti-oxidation), full plate nickel gold plating, immersion gold, immersion…
The key tasks of my country’s copper clad laminate (CCL) industry in the future development strategy, specifically in terms of products, should be to make efforts on the five major categories of new PCB substrate materials, that is, through the development and technological breakthroughs of the five major categories of new substrate materials , which…
Electromagnetic Compatibility (EMC) is an emerging comprehensive discipline that mainly studies electromagnetic interference and anti-interference issues. Electromagnetic compatibility means that electronic equipment or systems do not reduce their performance indicators due to electromagnetic interference under specified electromagnetic environment levels. At the same time, the electromagnetic radiation they generate does not exceed the limited limit level…
What are the uses of pull-up resistors and pull-down resistors? 1. Basic concepts of PCBA PCBA does not refer to a single component or technology, but an integrated concept. It represents the fixation of electronic components (such as resistors, capacitors, chips, etc.) on a printed circuit board through welding and other methods to form a…
Many friends who don’t know much about PCB circuit boards asked me: Why is the PCB circuit board “pasted with gold”? Is it to look good? In fact, good-looking is also a reason, but it is not mainly for good-looking. Let me share with you why the PCB circuit board should be “pasted with gold”,…
The process requirements of circuit boards are a very important factor in the production. They directly determine the quality and positioning of a PCB board, such as tin spraying, gold plating, and immersion gold. Relatively speaking, immersion gold is for high-end boards. Since immersion gold The quality is good but the cost is relatively high,…
Etching process and process control of PCB processing The process from the printed circuit board to the exposed circuit pattern is a relatively complex physical and chemical reaction process. This article will analyze the last step – etching. At present, the typical process of printed circuit board (PCB) processing adopts “graphic plating method”. That is, a layer of lead-tin…
PCBs are either single-layer or double-layer. If the PCB size is too large and the printed lines are long, the impedance will increase. In order to enhance everyone’s understanding of PCB, this article will introduce PCB, PCB baking stacking methods, PCB baking precautions, and PCB baking suggestions. 1. PCB PCB (printed circuit board), also known…
With the rapid development of technological products, the PCB design of power supply products is facing greater challenges, including power conversion efficiency, thermal analysis, power plane integrity and EMI (electromagnetic interference), etc. As industry applications become more extensive and diversified, power supply products continue to develop in the direction of high frequency, high efficiency, high…
FPC (flexible circuit board), also known as “soft board”, is a type of PCB. FPC is made of flexible substrates such as polyimide or polyester film. It has the advantages of high wiring density, light weight, thin thickness, bendability, and high flexibility. It can withstand millions of dynamic bends without damaging the wires. , move…
With the rise of the Internet of Things and the increasing abundance of mobile Internet content, people have put forward higher requirements for the transmission rate and service quality of mobile communication networks. The fifth generation (5G) wireless mobile communication technology emerged and developed rapidly. At the same time, 5G will also penetrate into various…
What is PCB copper clad laminate? I often hear circuit board manufacturers mention PCB copper clad laminate. What exactly is PCB copper clad laminate? Don’t worry,I will help you understand PCB copper clad laminates. PCB copper clad laminate refers to coating a layer of copper foil on the surface of the base material of PCB…
What is the soldering layer of PCB. PCB solder mask is an indispensable component of modern electronic equipment. As a support platform for electronic components, it realizes the functions of electronic equipment by connecting circuits. In the PCBA processing process, welding is an important process. In order to improve welding quality and efficiency, PCB soldering…