In microcontroller chips, multiple groups of VDD designs are often seen. This design is intended to ensure power stability while reducing signal noise. This article will explore why multiple VDD groups are needed on microcontroller chips from the perspectives of internal circuit structure, power consumption, EMI/EMC, and how to design the VDD power system. 1. … Read more
Micro-power DC-DC power modules are widely used in circuit design due to their high integration, high reliability, and simplified design. Although their application circuits are simple and easy to operate, some common problems are often encountered during application. This article provides a detailed analysis of the common application problems of power modules and how to … Read more
The power module, due to its modular design and high reliability, has been widely used in industrial communication, medical, power, and other fields. During the application process, some failure issues may arise, which can lead to the system failing to start or even burning out the circuit. So how can we quickly locate and resolve … Read more
Power modules are favored by many engineers due to their high integration, reliability, and simplified design. However, even with the same power module, different usages can lead to vastly different system reliability. Improper usage not only fails to leverage the advantages of the module but may also reduce system reliability. Designers often focus on the … Read more
This article is original by the author, please indicate the source if reprinted. This question has troubled the author for more than 5 years, and one product lost millions due to this issue.Most MCU enthusiasts do not understand why a 22pF capacitor needs to be connected on both sides of the MCU crystal, as this … Read more
▼Click the card below to follow our public account ▼ Hello everyone, welcome back to the Electronic Engineering Learning Circle. Today we will continue discussing this book, the Hardware System Engineer’s Bible. In the last article, we analyzed the Boost circuit and theoretically calculated the critical inductance value that ensures the Boost circuit operates in … Read more
On the afternoon of January 8, 2019, the three-day Arduino Interactive Workshop led by Ziv Zeev Cohen at the Zhejiang University of Media and Communications’ School of Design officially commenced. The all-English teaching style of Ziv posed a challenge for the students, especially with the technical terms that were hard to understand. However, through Ziv’s … Read more
Do you want to play with circuits but don’t know how to design a PCB? You can! Before PCBs existed, components were connected directly (as imagined by Teacher Su). In fact, even when we have PCB design issues that require rework, we often use various jumper wires to make our circuits work. So, even if … Read more
Click the card above to follow and learn more What is Freeduino? It is an Arduino UNO board without any circuit board. It uses a technology called freeform to interconnect components using wires or copper instead of a circuit board. It looks minimalistic and beautiful! Why did I make this? I often find it hard … Read more