67. See that there are two types of 45-degree angles and arc when the PCB board is bent. What are the advantages and disadvantages, and how to choose? From the perspective of impedance matching, these two lines can be made into matching bends. But the rounded corners may be difficult to machine. 68. If […]
Category Archives: Technical Knowledge
34. In a circuit with both analog and digital circuits, how to avoid mutual interference when designing the PCB board? If the analog circuit is reasonably matched, the radiation is very small, and it generally interferes. Interference sources come from devices, power supplies, space, and PCB; digital circuits must be interference sources due to many […]
Although there is a lot of software that can realize automatic PCB layout and routing, as the signal frequency continues to increase, engineers need to understand the basic principles and techniques of PCB layout and routing in order to make their designs perfect. The following covers the relevant basic principles and design skills of PCB […]
Although the current level of semiconductor integration is getting higher and higher, many applications also have system-on-chips available at any time. Many powerful and out-of-the-box development boards are becoming more and more easily available, but the application of electronic products in many use cases still needs to use custom PCB. In one-time development, even an […]
Part 1 of this article sees: Impedance control guide – part 1 4.5.3 Common coplanar impedance calculation modes: 4.5.3.1 Surface coplanar waveguide ▌Scope of application: After the outer layer is etched, the single-line coplanar impedance, the reference layer, and the impedance line are on the same level, that is, the impedance line is surrounded […]
▌1.0 Purpose Determine the impedance control requirements, standardize the impedance calculation method, and formulate the impedance test COUPON design criteria to ensure that the product can meet the needs of production and customer requirements. ▌2.0 scope Design, manufacture, and review of all products that require impedance control. 2.1 Definition: The definition of impedance: at […]
1. The status of the PCB industry ▌1.1 PCB industry definition PCB (printed circuit board) is an important electronic component, mainly composed of two types of materials, insulating base material and conductor, which play a supporting and interconnecting role in electronic equipment. The main advantage of using circuit boards is to greatly reduce wiring and […]
1. Introduction to PCB and SMT PCB design The design of the printed circuit board is based on the circuit schematic diagram, combined with external connection layout, internal electronic component optimization layout, and other factors, to realize the design process of the functions required by the circuit designer. Simple layout design can be realized by […]
Rigid-Flex PCB combines the best characteristics of rigid PCB and flexible PCB, making it easier for manufacturers to install PCBs in small spaces. The increased flexibility allows manufacturers to accurately and easily manipulate the board during installation. Before using them, you must first understand all the basic knowledge of the rigid-flex boards. 1.What is a […]
In this report, we will discuss about the rigid-flex PCB market demand, growth and business prospects. The growth of the global rigid-flex PCB market from 2020 to 2025 On the basis of presenting the current situation of the industry, the report will mainly conduct in-depth research on the development environment, market size, development trend, operating […]
