Circuit design is a crucial stage in realizing electronic device functionality, optimizing performance, and controlling costs. It directly influences the reliability, miniaturization, and adaptability of products. In the rapidly evolving field of technology, sound circuit design is not only the cornerstone of product success but also a necessary condition for maintaining competitiveness and compliance with regulatory standards. Its comprehensive impact renders circuit design indispensable in modern electronics engineering.

Electronic enthusiasts are passionate about do-it-yourself (DIY) projects because it allows them to build, customize, and enhance electronic devices with their own hands, catering to individual preferences. DIY provides opportunities to practice skills and gain a deeper understanding of electronic principles, sparking creativity and problem-solving abilities. Through DIY, electronic enthusiasts can actively engage in technological innovation and enjoy a sense of accomplishment from conceptualization to implementation.

Electronic manufacturing is a cornerstone of modern technology and industry, covering a wide range from chips to devices. It drives innovation, automation, and the development of global supply chains, providing people with convenient, efficient, and advanced technological products. The significance of electronic manufacturing lies in its unprecedented opportunities for connectivity and development in the global economy and society.

Repairing electronic devices on one's own enables individuals to save on maintenance costs, extend the lifespan of their devices, and reduce environmental waste. Additionally, self-repair cultivates skills in understanding the fundamental causes of issues and their solutions, enhancing individuals' grasp and control over technology. Successful experiences during the repair process provide practical skills and a sense of accomplishment, encouraging more people to engage in electronic repairs.