what is pmu power
Stands for Power Management Unit.. The PMU is a microcontroller, or integrated circuit, that controls the power functions of Macintosh computers. Though it is not a large component, the PMU contains several parts, including memory, software, firmware, and its own CPU. Some responsibilities of the PMU include:
A phasor measurement unit (PMU) is a device which measures the electrical waves on an electricity grid using a common time source for synchronization. Time synchronization allows synchronized real-time measurements of multiple remote measurement points on the grid. The resulting measurement is known as a synchrophasor.