Microsoft Technology Licensing, LLC

Banha Sok

John Joseph Siegler

Shaun L Harris

Rameez Kadar Kazi

Fredrick Anthony Constantino

Chadd Nathaniel Garton

Mark A Shaw

Brandon Devaul

An uninterruptible power supply (UPS) includes a rectifier configured to receive alternating current (AC) power. The UPS further includes a first output connected to the rectifier through an inverter. The first output is configured to output an AC power supply. The UPS also includes a second output connected to the rectifier through a battery backup and a stepdown converter. The second output is configured to output a direct current (DC) power supply in response to a detected power anomaly condition, thereby providing extra redundancy that allows for increased power availability and uptime.

Dual output uninterruptible power supply

A busbar connector includes an insulator body, a positive power delivery contact, a negative power delivery contact, and a side band contact. The insulator body has first prong and a second prong oriented in a longitudinal direction and proximate one another with a gap therebetween. The positive power delivery contact is on a first inner surface of the first prong adjacent the gap, and the negative power delivery contact is on a second inner surface of the second prong adjacent the gap. The side band contact is positioned on the insulator body and insulated from the positive power delivery contact and the negative power delivery contact by the insulator body.

Busbar connection with side band communications

A device for providing power to a server rack includes a first AC input port, a second AC input port, a first relay, a second relay, and an output port. The output port is electrically connected to both the first AC input port and second AC input port. The first relay is electrically between the first AC input port and the output port, and the second relay is electrically between the second AC input port and the output port. The first relay and second relay are configured to compare a first phase of a first voltage from the first AC input port to a second phase of a second voltage from the second AC input.

Systems and methods for combining power sources in datacenters

The present disclosure relates to systems, methods, and computer readable media for enabling a power shelf unit to communicate a power throttle signal to devices of a power rack (or other grouping of devices) via a busbar. In particular, systems disclosed herein involve detecting a trigger condition associated with throttling power on server devices of a server rack. In response to detecting the trigger condition, systems here cause a direct current (DC) power supply voltage to change from an operating voltage to a notification voltage for a period of time to alert or otherwise communicate to server devices coupled to the busbar of the trigger condition. Causing the DC power supply voltage to change to the notification voltage may cause processors on server devices to throttle power consumption in accordance with one or more power capping policies implanted thereon.

Power throttling based on input voltage monitoring

A system includes reception of a first portion of a firmware image, determination, based on the first portion of the firmware image, of whether to update the firmware based on the firmware image, transmission of an acknowledgement signal if it is determined to update the firmware based on the first portion of the firmware image, reception of a remaining portion of the firmware image, and updating of the firmware based on the firmware image.

Firmware update system

A power supply unit (PSU) dynamically limits total recovery current. The PSU includes at least a power input, a power output, a historic maximum power draw memory, an update logic, and a recovery current limiting logic. Some implementations include a latest power measurement register, an hourly max power register, and a rolling max register, and controlling firmware. The update logic monitors a power level. The update logic updates the historic maximum power draw memory to match the monitored level. After a power interruption, the recovery current permitted to flow into the PSU is limited based on the historic usage. The recovery current may be limited in a constant, stepped, or ramped manner. The PSU may also provide power distribution. Multiple PSUs may be treated as a group, allowing an individual PSU to exceed its historic usage while the group's recovery currents are limited to the sum of historic usage levels.

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Kirkland, WA, United States of America

Banha Sok