1.1 Basic Recognition Mnemonics A circuit board can change in countless ways; the combination of components is key. Resistors and capacitors are the most common; understanding their symbols is essential. Resistance changes and capacitor leakage; remember the basic characteristics. Inductance and voltage changes can be checked; measure the PN junction of transistors. MOSFETs can be … Read more
Printed Circuit Board Advanced PCB Design Advanced design of Printed Circuit Boards (PCBs) requires a combination of engineering practice, signal integrity analysis, electromagnetic compatibility (EMC) design, and manufacturing processes. The following are the core points and practical tips for advanced design to help you enhance the professionalism and reliability of PCB design. 1.High-Speed Signal and … Read more
In the field of electronic device manufacturing, underfill materials play a crucial role in enhancing the reliability of electronic components. Today, we will delve into the knowledge regarding the selection and application of underfill materials as outlined in the IPC J-STD-030A standard. The Importance and Types of Underfill Materials As electronic products continue to evolve … Read more
Having navigated the stock market for many years, I have seen various companies, some fleeting like meteors, while others steadily progress through the river of time. Today, I want to discuss Yidun Electronics, a company that has been deeply rooted in the circuit board industry for many years. I will share my views in the … Read more
Currently, technology is advancing rapidly, with precision circuit boards carrying thousands of signal transmissions, acting as the central nervous system of the intelligent world, linking key instructions together. Jingwang Electronics Co., Ltd. (hereinafter referred to as “Jingwang Electronics”), established in 1993 and listed on the Shanghai Stock Exchange in 2017 (stock code: 603228), has been … Read more
Before diving into AI chips, let’s start with a small quiz to see how much you know about AI chips! AI Chip Quiz 1. The core difference between AI chips and traditional CPUs is: A) Higher clock speed B) Stronger parallel computing capability C) Larger storage capacity D) Lower power consumption 2. Which of the … Read more
Today, let’s talk about NPU. While most people are familiar with common computing units like CPU and GPU, they may not fully understand the working principles and specific functions of NPU. NPU stands for Neural Network Processing Unit, which is a neural network processor. As the name suggests, it is a computing unit specifically designed … Read more
1. Technical Challenges of LTE Wireless Communication Systems and the Positioning of SAM-U3750A With the rapid development of fields such as Industrial Internet of Things (IIoT), smart cities, and rail transit, the demand for high bandwidth, low latency, and strong reliability in LTE wireless communication systems is increasing. Traditional communication devices face severe challenges in … Read more
Hello everyone, I am the Mixed Bag Guy. Today, I would like to share some knowledge about performance metrics in embedded systems. Embedded software performance metrics are important criteria for measuring the performance of embedded systems. What are the commonly used embedded software performance metrics across various industries? Performance metrics for embedded software typically focus … Read more
Building an Embedded Linux Environment on Raspberry Pi 4B: A Complete Guide from Scratch Introduction The Raspberry Pi 4B, with its powerful performance and rich interface resources, has become an ideal platform for embedded Linux development and IoT applications. As a single-board computer supporting Linux on an ARM architecture, mastering the setup of its development … Read more