Make a 220v to 3 7v Lithium Ion 18650 Battery Charger without Transistor Mosfet or IC

24 Volt 480W SMPS power supply repair course, in this course designed for beginners interested in understanding and repairing Switch Mode Power Supply (SMPS) units. This course teaches the fundamentals of SMPS technology, focusing on a 24V, 480W power supply, and covers essential skills for diagnosing and fixing common issues. You’ll learn how SMPS converts AC to DC using high-frequency switching, understand the role of key components like transformers, capacitors, and transistors, and gain insight into common failure points such as blown fuses, faulty capacitors, and overheating transistors. Step-by-step guidance on using essential tools like multimeters, soldering irons, and testing equipment is provided to help you safely locate and resolve issues. Practical sessions include component testing, replacing damaged parts, and ensuring stable output after repairs. With a focus on safety and troubleshooting, this course equips you to handle repairs confidently, whether for personal projects or as a stepping stone into electronics repair. By the end, you'll have the knowledge and skills to troubleshoot and repair 24V SMPS power supplies independently.