Microsoft Technology Licensing, LLC

Richard F Johnson

Chee Kiong Fong

Edward Charles Giaimo, Iii

Geoffrey Jason Shew

Sujuan Tang

Suet Fong Tin

Leonardo G Del Castillo

Kurt David Wrisley

Akash Atul Shah

Christopher Alan Schafer

Thomas K Mehrkens

Gary Alan Tornquist

Mohammed Nadir Haq

Tim R Calland

Leonardo Gilbert Del Castillo

Edward C Iii Giaimo

Examples are disclosed that relate to connector systems, magnetic plug assemblies and methods for mating a magnetic plug assembly with a plurality of receptacles. In one example, a magnetic plug assembly comprises a moveable member comprising an aperture and one or more magnets. A plug tip extends through the aperture, and one or more biasing elements urge the moveable member and the one or more magnets toward a distal end of the plug tip, with the moveable member being moveable relative to the plug tip.

Magnetic plug

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 power supply unit having improved resistance to overheating caused by electrically conductive environmental contamination of electrical contacts of a connector of the power supply unit is disclosed. In one example, the connector includes one or more electrical contacts configured to receive one or more signals that indicate the connector is connected to an electronic device. The power supply unit includes a protection circuit that is configured to electrically disconnect the power supply unit from the connector based on detecting that a voltage on at least one of the one or more electrical contacts is greater than an expected/reference voltage. The higher than expected voltage may indicate that electrically conductive contamination has created a short between different electrical contacts of the connector. The power supply unit may be disabled based on detection of the electrically conductive contamination in order to prevent overheating and/or degradation of the connector.

Power supply unit with connector protection circuit

Growing community of inventors

Redmond, WA, United States of America

Richard F Johnson