additive pcb

Differential signal pairs that are routed very close to each other will also be tightly coupled to each other. This mutual coupling will reduce EMI emissions. The main disadvantage of differential signal lines is that they increase the area of ​​the PCB. This article introduces the routing strategies of using differential signal lines in PCB…

How to reduce the mutual interference between digital signals and analog signals? Before designing, we must understand the two basic principles of electromagnetic compatibility (EMC): the first principle is to reduce the area of ​​the current loop as much as possible; the second principle is that the system uses only one reference plane. On the…

The arrangement of components on PCB should follow certain rules. (1) Components should be installed in the best position for natural heat dissipation to make the heat transfer path as short as possible. Components on the same PCB should be arranged according to their heat generation and heat dissipation degree as much as possible. Components…

Electronic enthusiasts often make circuit boards by themselves. It is difficult to make high-quality circuit boards using traditional copper-clad boards. This article introduces an optical printed circuit board. The plate making process is time-saving and labor-saving, the process is simple, double-sided wiring can be done, and the quality of the produced circuit boards is very…

With the application of new hardware technologies such as microvias and monolithic high-density integrated systems, new software such as free-angle routing, automatic layout and 3D layout and routing will become one of the essential design tools for circuit board designers. In early circuit board design tools, there was a special layout software for layout and…

With the rapid development of electronic information technology, current semiconductor devices are increasingly miniaturized, high-density and multifunctional. In particular, applications such as fashionable consumer electronics and portable products that have strict requirements on the motherboard area are easily affected by electrostatic discharge (ESD). The selection of circuit protection components is determined by the wiring conditions…