Click the blue text to follow us Introduction There are various types of wireless Bluetooth headsets on the market, which offer excellent sound quality and convenient control features. Wireless Bluetooth headsets not only free our hands but also allow us to enjoy calls and music more freely. The sales of wired headsets are gradually declining, … Read more
WeChat Official Account:Electromagnetic Compatibility Home Issue 2778 1.Problem Description An industrial display screen experienced blue screen issues and system crashes during ESD (Electrostatic Discharge) testing, with ±6kV contact discharge applied to the network port, USB, and serial port. The system could recover after a power cycle, but the tests failed. This issue has persisted for … Read more
1. Concept of PCB PCB (Printed Circuit Board), known in Chinese as 印制电路板, is an important electronic component that serves as a support for electronic components and provides electrical connections between them. It is called a “printed” circuit board because it is made using electronic printing technology. 2. Role and Function of PCB in Various … Read more
SMT stands for Surface Mount Technology, which is currently the most popular technology and process in the electronic assembly industry. It is a circuit assembly technology that mounts surface-mounted components (referred to as SMC/SMD, known in Chinese as chip components) on the surface of printed circuit boards (PCBs) or other substrates, using methods such as … Read more
In the field of electronic manufacturing, printed circuit boards (PCBs) are indispensable components, and their quality directly affects the performance and reliability of the entire electronic product. To ensure compliance with industry standards and best practices, engineers need to be well-informed about international PCB standards. Below are some commonly used standards, which we hope will … Read more
**Introduction** In many industrial and automotive applications, protecting interface transceivers from various electrical overstress events is a major concern. Transient Voltage Suppressor (TVS) diodes are commonly used for this purpose as they clamp voltage spikes by creating a low impedance current path. The electrical characteristics of TVS diodes are determined by several process factors. These … Read more
Today, I would like to share with you the 8 common PCB markings. From left to right: Stamp hole – Via type – Solder mask pad – Reference mark From left to right: Stamp hole – Mounting hole – Solder mask pad – Reference mark From left to right: PCB slot, PCB button, spark gap, … Read more
The RK3588 core board is a widely used 8K flagship SoC chip from Rockchip, and it is one of the domestic chips frequently used by many electronic engineers. When using the RK3588, EMC issues often arise. So, how can we reduce these EMC problems? 1. Mold Isolation Design Connectors should be recessed as much as … Read more
Gastric cancer can be classified based on anatomical locations into: cardia cancer (gastric cardiacancer, GCC), fundic cancer, body cancer, antral cancer, and mixed type (two or more sites) cancer. The composition ratio of gastric cancer at different sites is undergoing significant changes, with a trend towards proximal development. In recent decades, the incidence of cardia … Read more
We believe that everyone finds wiring to be an essential part of PCB design, and the rationality of the wiring determines the aesthetics and production costs of the PCB. It also reflects the performance of the circuit and heat dissipation, as well as whether the performance of the components can be optimized. This article will … Read more