Category Archives: Uncategorized

With the development of electronic technology, large-scale and high-precision PCB boards have been widely used, and the mounting density of components on PCB boards is getting higher and higher. Simple single-sided and double-sided wiring can no longer meet the requirements of high-performance circuits, so multilayer PCB boards are needed for wiring. High-frequency circuits tend to […]

As the most general analog device, operational amplifier is widely used in signal conversion and conditioning, ADC sampling front end, power supply circuit and other occasions. Although the peripheral circuit of the operational amplifier is simple, there are still many points needing attention in the use process. 1. Pay attention to whether the input voltage […]

In PCB design, whether to use SMD magnetic beads or SMD inductors mainly focuses on the application scenario. Design pcb The design of printed circuit board is based on the circuit schematic diagram to realize the functions required by circuit designers. The design of printed circuit board mainly refers to layout design, and the layout […]

The layout of PCB Layout design is described from three aspects: right-angle layout, differential layout and serpentine: I. Layout design right-angle routing (three aspects) The influence of right-angle routing on the signal is mainly reflected in three aspects: first, the corner can be equivalent to the capacitive load on the transmission line, slowing down the […]

1.layout design PCB wiring and layout isolation criteria: strong and weak current isolation, large and small voltage isolation, high and low frequency isolation, input and output isolation, and the demarcation standard is one order of magnitude difference. The isolation method includes: the space is far away and the ground wire is separated. 2. The crystal […]

In PCB layout design and wiring, it is required to avoid the situation of right angle wiring as far as possible, which has become one of the standards to measure the quality of wiring, so how much impact will the right angle wiring have on signal transmission? In principle, the right angle wiring designed by […]

1、 Circuit board layout design steps Generally speaking, the basic process of layout design can be divided into three steps. (1) Design of circuit schematic diagram The design of circuit schematic diagram is mainly based on PROTEL099′ s Advanced Schematic system to draw a circuit schematic diagram. In this process, we should make full use […]

As a PCB engineer, you must master how to quickly design a successful and excellent PCB with layout, which means that you are on the road to achieve a fast, reliable and professional PCB. This article will discuss some concise (and critical) skills and strategies that are applicable to both novice and veteran PCB designers. […]

After layout, wiring and copper plating, a PCBlayout design is basically completed. In order to ensure that there is no omission or violation of design rules in the process of layout design, the final design verification is needed. Here, the standard of verification and detection is the content of rule setting before PCB design, mainly […]

Myth # 1: Is a signal above GHz rate a high-speed signal? When layout mentions “high-speed signal”, it is necessary to define what “high-speed” is first. Is the signal at MHz rate high-speed or the signal at GHz rate high-speed? Traditional SI theory has a classic definition of “high-speed signal”. Si: signal integrity, that is, […]