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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:
"Desktop and Portable Systems: Second Edition" Edited by Owen W. Linzmayer ISBN0-321-33546-5
External linksedit
Resetting the PMU on Macbook and MacbookPro computers - contains general information on the PMU
April 14, 2024
power, management, unit, this, article, multiple, issues, please, help, improve, discuss, these, issues, talk, page, learn, when, remove, these, template, messages, this, article, relies, largely, entirely, single, source, relevant, discussion, found, talk, pa. This article has multiple issues Please help improve it or discuss these issues on the talk page Learn how and when to remove these template messages This article relies largely or entirely on a single source Relevant discussion may be found on the talk page Please help improve this article by introducing citations to additional sources Find sources Power Management Unit news newspapers books scholar JSTOR June 2010 This article needs additional citations for verification Please help improve this article by adding citations to reliable sources in this article Unsourced material may be challenged and removed Find sources Power Management Unit news newspapers books scholar JSTOR June 2010 Learn how and when to remove this template message The examples and perspective in this article may not represent a worldwide view of the subject You may improve this article discuss the issue on the talk page or create a new article as appropriate May 2023 Learn how and when to remove this template message Learn how and when to remove this template message 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 Monitoring power connections and battery charges Charging batteries when necessary Controlling power to other integrated circuits Shutting down unnecessary system components when they are left idle Controlling sleep and power functions On and Off Managing the interface for built in keypad and touchpads on portable computers Regulating the real time clock RTC See also editPower management integrated circuit PMIC System Management Unit SMU System Management Controller SMC References edit Desktop and Portable Systems Second Edition Edited by Owen W Linzmayer ISBN 0 321 33546 5External links editResetting the PMU on Macbook and MacbookPro computers contains general information on the PMU Retrieved from https en wikipedia org w index php title Power Management Unit amp oldid 1154776358, wikipedia, wiki, book, books, library,
