What is the purpose of grounding an oscilloscope? Grounding serves as the reference point for all voltage measurements, ensuring that there is a known 0V voltage point in the circuit. This is crucial for ensuring measurement accuracy, suppressing noise interference, and ensuring measurement safety. It can be observed that the power cord of a desktop … Read more
In the design and manufacturing process of electronic devices, if a design is encountered where the circuit board ground is directly connected to the chassis ground, will this design cause problems? This article will explore this issue, hoping to provide assistance to our readers. 1. Electrical Safety Issues The direct connection may lead to a … Read more
“Grounding is considered a solution to many EMI issues. However, when grounding is done improperly, the chosen grounding scheme can become part of the problem. This article illustrates the issue of grounding coupling interference through simple examples.” 01 — Common Impedance Coupling According to Ampere’s law (the theoretical cornerstone of EMC grounding concepts – Maxwell’s … Read more
In modern industrial production, the application of PLCs (Programmable Logic Controllers) is becoming increasingly widespread. However, with the increase in usage frequency, operators have higher demands for PLCs. Today, we have compiled some practical tips for daily PLC applications to help you work more efficiently. 1. Grounding Issues: Ensure Stable System Operation The grounding requirements … Read more
Circuit boards are one of the fundamental components of modern electronic devices. Various electronic components on the circuit board are connected by metal wires, forming complex circuits. Grounding is crucial in these circuits. This article will introduce the basic knowledge related to grounding in circuit boards to help readers better understand the design and manufacturing … Read more
The Engine Control Unit (ECU) is installed in the vehicle. To ensure the ECU operates reliably and normally, the installation and usage requirements for the ECU are as follows: 1. ECU Operating Environment Temperature Requirements Operating temperature range: -40℃ to +105℃; 1) If the temperature exceeds this range, cooling measures should be implemented. Ensure the … Read more
PCB grounding is a concern for PCB layout engineers, such as how to effectively plan a grounding system on the board, whether to wire analog, digital, and power grounds separately or together at a single point, and how to eliminate ground loops on the circuit board. Today, we will mainly discuss PCB grounding design, PCB … Read more
Electromagnetic compatibility refers to the ability of a device or system to function properly in its electromagnetic environment without causing unacceptable electromagnetic interference to anything in that environment. The purpose of electromagnetic compatibility design is to ensure that electronic devices can suppress various external interferences, allowing them to operate normally in specific electromagnetic environments, while … Read more
Search on WeChat Jicheng Training Practical tips for daily applications of PLCs, hoping to assist everyone in their daily use of PLCs. 1 Grounding Issues The grounding requirements for PLC systems are quite strict, and it is best to have an independent dedicated grounding system. Also, ensure that other devices related to the PLC are … Read more
In RS485 communication systems, the choice of grounding method is crucial, directly affecting the system’s stability and anti-interference capability. Therefore, engineers need to choose the grounding method reasonably based on project requirements. Below we will discuss which grounding is suitable for the RS485 bus. 1. Single Point Reliable Grounding There can only be one grounding … Read more