The Power Management Unit (PMU) is a
microcontroller that governs
power functions of digital platforms. This
microchip has many similar components to the average
computer, including
firmware and
software,
memory, a
CPU, input/output functions, timers to measure intervals of time, and
analog to
digital converters to measure the voltages of the main battery or power source of the computer. The PMU is one of the few items to remain active even when the computer is completely shut down, powered by the backup battery.
For portable computers, the PMU is responsible for coordinating many functions, including:
The Power Management Unit (PMU) is a
microcontroller that governs
power functions of digital platforms. This
microchip has many similar components to the average
computer, including
firmware and
software,
memory, a
CPU, input/output functions, timers to measure intervals of time, and
analog to
digital converters to measure the voltages of the main battery or power source of the computer. The PMU is one of the few items to remain active even when the computer is completely shut down, powered by the backup battery.
For portable computers, the PMU is responsible for coordinating many functions, including: