To download, please follow our public account and reply with the keyword: RK3399☆ END ☆ Highlights MLCC capacitors, aluminum electrolytic capacitors, inductors, and magnetic beads impedance curves Does your test power supply have issues? The effect of output capacitor’s ESR on DC-DC Experience in tuning loop compensation for DC-DC circuits LMR50410-Q1 EN pin voltage startup … Read more
If you don’t pay attention to me, you won’t know what you’ve missed! Everything starts with connection. The Internet of Things (IoT) is accelerating into our daily lives and various industries, with increasingly intelligent and convenient connections between people and things, and between things and things. Wireless communication has become an invisible bridge in IoT … Read more
3D Printing The working steps of a 3D printer are as follows: use CAD software to create an object. If you already have a model, such as an animal model, a character, or a miniature building, you can use that as well. Then, copy it to the 3D printer via an SD card or USB … Read more
This article will primarily introduce the commonly used 3D printing host software in 3D printing. This type of 3D software will provide significant assistance to users. By classifying these software, users can select the one that best suits their needs. No need to fear; we have answered all these questions, as well as details about … Read more
1. Problem Description A certain dashcam requires an external adapter for testing. During power-on testing, it was found to exceed standards, specifically at frequencies of 84MHz, 144MHz, and 168MHz. The cause of the excessive radiation needs to be analyzed, and corresponding countermeasures should be provided. The radiation test data is as follows:2. Analysis of Radiation … Read more
Previously, I wrote an article on my blog titled “Why Convert PCB Files to GERBER Files and Drill Data for PCB Manufacturers”. That article simply explained why this is necessary. In this article, I will discuss how to convert PCB design files into the corresponding Gerber files and some common pitfalls to avoid. Many engineers … 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
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
Abstract This article introduces the correct connection methods for RS-485 networks, including twisted pair wiring and recommendations for proper installation of termination resistors. It lists the receiver waveforms under correct and incorrect termination. This application note provides a basic guide for connecting RS-485 networks. The RS-485 specification (officially known as TIA/EIA-485-A) does not specifically dictate … Read more
With the increasing popularity of high-speed Digital Signal Processors (DSPs) and their peripherals, electronic system designers are facing increasingly severe issues related to electromagnetic interference (EMI). In earlier studies, such issues were often referred to as electromagnetic interference (EMI) or radio frequency interference (RFI), while modern engineering more accurately adopts the concept of “electromagnetic compatibility … Read more