A Power Extraction Device is an electronic or electromechanical system designed to capture and convert electrical or mechanical energy from a source into usable power for devices, systems, or storage. It efficiently harvests energy from renewable sources like solar, wind, or vibration, as well as from electrical circuits, without disrupting normal operation. Featuring high conversion efficiency, stability, and compact design, power extraction devices are widely used in energy harvesting applications, portable electronics, industrial monitoring, IoT devices, and remote sensing systems. By providing a reliable and continuous power supply, they enable autonomous operation, energy savings, and enhanced system efficiency in modern electrical and industrial applications.