Microsoft Technology Licensing, LLC

Gary Alan Tornquist

Chee Kiong Fong

Suet Fong Tin

Edward Charles Giaimo, Iii

Rajagopal Venkatachalam

Jeffrey A Griffis

J David Egner

Sachin Ramesh Chandra

Geoffrey Jason Shew

Ceceli Ann Wilhelmi

Vinicio Manfrini

Richard F Johnson

Brett A Muzzey

Michael Hiett

Da Hai Hu

Mike Hiett

Brian D Hahn

Farrukh Kamal

Kenneth Budoff

Gung Moon Chan

Tim R Calland

Vinod Chakravarthy

Edward C Iii Giaimo

Examples are disclosed that relate to power supply devices and methods for managing DC power. In one example, a method comprises: providing DC power at a first voltage until determining that a standby time period has elapsed; determining that a load is connected to the power supply device; and based on determining that the standby time period has elapsed, entering a restricted power mode, wherein the restricted power mode comprises either: deactivating the DC power, or (1) providing the DC power at a second voltage until determining that a load detection time period has elapsed, (2) deactivating the DC power after determining that the load detection time period has elapsed, and (3) repeating (1) and (2) until determining that the load is no longer connected to the power supply device.

Managing DC power

A system for battery current monitoring includes a system power throttle stored in memory and executable by the one or more processors to place a battery of an electronic device into a state of expected zero-drain throughout a time interval while the electronic device remains active, and a battery leakage monitor stored in the memory and executable by the one or more processors to detect a battery charge leak based on a series of time-separated parameter measurements for the battery collected during the time interval.

Battery charge leakage monitor

An external AC power adapter defines a power conversion chamber that retains power conversion circuitry operable to convert an input power to an output power. The power adapter further include an intake chamber and an outlet chamber, both having an aperture that places the respective chamber in fluid communication with the power conversion chamber. Each chamber may have at least one vent to the ambient environment such that an air mover is operable to circulate ambient air through the power conversion chamber. Each chamber may include a guard that deters liquid that has entered the respective chamber from flowing into the associated aperture.

Splash resistant power adapter

Disclosed herein are dual-barrel, connector jack and plug assemblies. Particularly, plug assemblies having two single barrel connectors that are situated side-by-side. Each barrel may include two or more contacts for receiving and transmitting DC IN+ electrical signals. Further, each barrel may include two or more contacts for receiving and transmitting DC IN&#x2212; electrical signals. Inside each barrel connector may be disposed center pins. The barrel connectors may be cylindrically-shaped and configured to mate to a dual-barrel, connector jack assembly as described herein. A bridge component may be disposed between the barrel connectors for preventing the plug assembly from being inserted into the jack assembly in the wrong orientation. The bridge assembly may be shaped to prevent improper insertion into a corresponding aperture of the jack assembly.

Dual-barrel, connector jack and plug assemblies

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Sammamish, WA, United States of America

Gary Alan Tornquist