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The Purpose of Connecting a Resistor and Capacitor Between PCB GND and Chassis GND
ByGrace May 28, 2025May 26, 2025
Introduction In electronic circuit design, the connection between a printed circuit board’s (PCB) ground (GND) and the metal chassis ground (often called earth ground or safety ground) is a critical consideration for both electromagnetic compatibility (EMC) and operational safety. A common practice in many designs is to place a parallel combination of a resistor and…
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Key Considerations When Designing Microcontroller Peripheral Circuits
ByGrace May 28, 2025May 26, 2025
Introduction Designing peripheral circuits for microcontrollers (MCUs) is a critical aspect of embedded system development. The performance, reliability, and efficiency of an MCU-based system heavily depend on how well its peripheral circuits are designed. Peripheral circuits include power supply, clock generation, reset circuits, input/output (I/O) interfaces, communication modules (UART, SPI, I2C), analog-to-digital converters (ADCs), and…
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Understanding ADC Basic Parameters and Strategies to Improve ADC Performance
ByGrace May 28, 2025May 26, 2025
Introduction Analog-to-Digital Converters (ADCs) are critical components in modern electronic systems, converting continuous analog signals into discrete digital values for processing by digital systems. The performance of an ADC significantly impacts the accuracy and reliability of data acquisition systems, communication devices, medical instruments, and industrial control systems. To optimize ADC performance, engineers must understand key…
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What is EDA Technology? Key Applications and Uses
ByGrace May 27, 2025May 24, 2025
Introduction Electronic Design Automation (EDA) technology is a critical tool in the design and development of modern electronic systems. It encompasses a range of software tools that assist engineers in designing, simulating, and verifying complex integrated circuits (ICs), printed circuit boards (PCBs), and electronic systems. As electronic devices become more sophisticated, EDA plays an increasingly…
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Factors Contributing to Soldering Defects in Printed Circuit Boards (PCBs)
ByGrace May 27, 2025May 24, 2025
Introduction Soldering is a critical process in printed circuit board (PCB) assembly that creates permanent electrical connections between components and the board. Despite technological advancements, soldering defects remain a common challenge in electronics manufacturing, affecting product reliability and yield rates. This article examines the multifaceted factors that contribute to soldering defects in PCB assembly, covering…
Read More Factors Contributing to Soldering Defects in Printed Circuit Boards (PCBs)
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What to Use to Clean Circuit Boards and How to Clean Them Properly
ByGrace May 27, 2025May 24, 2025
Introduction Circuit boards are essential components in electronic devices, and keeping them clean is crucial for optimal performance and longevity. Dust, dirt, flux residues, and other contaminants can cause short circuits, corrosion, or even complete failure. Therefore, knowing the right cleaning methods and materials is vital for electronics maintenance, repair, and manufacturing. This article explores…
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Essential Laws of EMC: Understanding the Fundamental Principles
ByGrace May 27, 2025May 24, 2025
Introduction to Electromagnetic Compatibility Electromagnetic Compatibility (EMC) represents a critical field in electrical engineering that ensures electronic devices and systems can operate as intended in their shared electromagnetic environment without causing or experiencing unacceptable interference. As our world becomes increasingly saturated with electronic devices—from smartphones to industrial control systems—the importance of EMC has grown exponentially….
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How to Disassemble a Printed Circuit Board (PCB): A Step-by-Step Guide
ByGrace May 27, 2025May 24, 2025
Introduction Printed Circuit Boards (PCBs) are the backbone of modern electronics, found in everything from smartphones to industrial machinery. Whether you’re repairing, recycling, or reverse-engineering a device, knowing how to properly disassemble a PCB is essential. This guide provides a detailed, step-by-step approach to safely and effectively dismantling a PCB while minimizing damage to components…
Read More How to Disassemble a Printed Circuit Board (PCB): A Step-by-Step Guide
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Wave Soldering Process and Debugging Techniques
ByGrace May 27, 2025May 24, 2025
Introduction Wave soldering is a widely used soldering technique in the electronics manufacturing industry, primarily for through-hole components (THT) and some surface-mount devices (SMD). This process involves passing a printed circuit board (PCB) over a molten solder wave to form reliable electrical connections. Due to its efficiency and consistency, wave soldering remains a critical process…
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LED Packaging: A Comprehensive Overview
ByGrace May 27, 2025May 24, 2025
Introduction Light Emitting Diodes (LEDs) have revolutionized the lighting industry with their energy efficiency, long lifespan, and versatility in applications ranging from general illumination to specialized uses in displays, automotive lighting, and medical devices. The performance and reliability of LEDs are heavily dependent on their packaging structure and technology. LED packaging serves multiple critical functions:…
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How to Place Inductors on a Switch-Mode Power Supply Printed Circuit Board
ByGrace May 27, 2025May 24, 2025
Introduction Switch-mode power supplies (SMPS) have become ubiquitous in modern electronics due to their high efficiency and compact size. One of the most critical components in any SMPS design is the inductor, which stores energy during the switching cycle and releases it to the output. Proper placement of inductors on the printed circuit board (PCB)…
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Common Issues in Reflow Soldering Process: Causes and Solutions
ByGrace May 27, 2025May 26, 2025
Introduction Reflow soldering is a critical process in surface mount technology (SMT) assembly where solder paste is used to attach components to printed circuit boards (PCBs). While reflow soldering offers numerous advantages including high efficiency, consistency, and suitability for mass production, the process is susceptible to various issues that can affect product quality and reliability….
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The Application of Motion Controllers in PCB CNC Drilling Machines
ByGrace May 27, 2025May 24, 2025
Abstract Printed Circuit Board (PCB) manufacturing requires high precision and efficiency, especially in the drilling process, where accuracy directly impacts the quality of the final product. Modern PCB数控钻床 (CNC drilling machines) rely heavily on advanced motion control systems to achieve micron-level precision, high-speed operation, and multi-axis coordination. This paper explores the role of motion controllers…
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Key Considerations for Reflow Soldering: A Comprehensive Guide
ByGrace May 27, 2025May 24, 2025
Introduction to Reflow Soldering Reflow soldering has become the dominant assembly method in modern electronics manufacturing, offering numerous advantages over traditional hand soldering or wave soldering techniques. This process involves applying solder paste to printed circuit boards (PCBs), placing components, and then heating the entire assembly in a precisely controlled thermal environment to create permanent…
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Solving EMC/EMI Challenges in LED Power Supply Design
ByGrace May 27, 2025May 24, 2025
Introduction The rapid adoption of LED lighting across residential, commercial, and industrial applications has brought significant advancements in energy efficiency and longevity. However, one of the persistent challenges in LED power supply design is managing Electromagnetic Compatibility (EMC) and Electromagnetic Interference (EMI). These issues can lead to performance degradation, regulatory non-compliance, and even failure of…
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