Power management is the process of controlling and optimizing the power consumption of electronic devices and systems. This includes controlling voltage levels, managing power usage during different states of operation (e.g. active, idle, sleep), and implementing strategies to reduce overall power consumption while maintaining performance. Power management is essential in many applications, including mobile devices, IoT devices, and data centers, where energy efficiency and battery life are critical considerations. Research in power management focuses on developing new algorithms, techniques, and hardware designs to improve energy efficiency and extend battery life in electronic systems. Some key areas of research in power management include dynamic voltage and frequency scaling, power gating, clock gating, and energy-aware scheduling algorithms.