PCB Design Software for Small Businesses and Personal Projects: KiCad, Autodesk Fusion, and More
Designing a PCB is no longer limited to large engineering companies with expensive EDA software. Today, individual engineers, students, makers, startups, and small engineering companies can design professional PCBs using a variety of tools. The important question is: Which PCB design software is appropriate for a small company or an individual engineering project? There is […]
CR2032 Battery Design: Battery Life, Voltage Stability, and Flash Programming Errors
A CR2032 coin-cell battery is widely used in compact and handheld electronic devices because of its small size, low cost, and relatively long operating life. However, designing a device around a CR2032 battery requires more than simply calculating how long the battery will last. Two important design considerations are: A device may continue to operate […]
RS-485 Termination and Bias Resistor: Practical Calculation and Troubleshooting
RS-485 is widely used in industrial automation systems to connect PLCs, robots, PCs, remote I/O, sensors, and controllers. Although RS-485 is designed for reliable differential communication, incorrect termination, biasing, wiring, or grounding can cause intermittent communication problems. This article explains how to calculate the termination and bias resistors in a practical RS-485 network. 1. Basic […]
Industrial Communication Problems: Cable Connection, Impedance Matching, and Termination Resistors
In modern manufacturing environments, many machines and control devices must communicate with each other. A typical manufacturing system may include: PLCs Industrial robots PCs HMIs Servo drives Sensors Vision systems Motion controllers Remote I/O Industrial network switches These devices exchange data continuously through communication networks. When communication problems occur, engineers often focus first on software, […]
Why Digital Signals Become Unstable When Power Is Not Stable
Introduction A digital signal is normally expected to remain in a stable state between HIGH and LOW. Digital circuits use these two defined voltage levels to process and transmit information reliably. However, a digital signal can sometimes enter an undefined or unstable state, especially when the power supply is not stable. This problem can occur […]
심한 날씨 속에서 전자제품을 정전과 전력 불안으로부터 보호하는 방법
심한 날씨는 전자 장비에 심각한 문제를 일으킬 수 있습니다. 폭풍우, 번개, 강한 바람, 전기 공급 중단, 불안정한 전력 상태는 정전, 전압 저하, 전력 정지 등을 유발할 수 있습니다. 이러한 전력 문제들은 컴퓨터, 네트워크 장비, 산업 제어 장치, 제조 시스템, 측정 장치 및 기타 민감한 전자 장치에 영향을 미칠 수 있습니다. 장비를 개선하는 실용적인 방법 […]