Before reading this article, you can click on the blue text above“Power Forum”, and after “following”, you can star or pin the public account so that you can receive the highest quality articles and the latest materials in a timely manner. 01 Pay Attention to Power Supply Installation There are two types of power supplies … Read more
How to Connect the Chassis to the Circuit Board Ground?The chassis is made of metal, and there is a screw hole in the middle, which connects to the ground. Here, a 1M resistor is connected in parallel with a 0.1uF capacitor to connect to the circuit board ground. What are the benefits of this?1. If … Read more
Hello everyone, I am Lao Liu. After more than twenty years in automation, PLC programming is second nature to me; however, when it comes to wiring control cabinets, I must say there are quite a few pitfalls. Today, let’s have an honest discussion about the wiring of control cabinets, sharing the pitfalls I’ve encountered and … Read more
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