Abstract: Aspects of the present disclosure are directed to a power distribution device. The power distribution device includes an input to receive power, a plurality of outputs, each output of the plurality of outputs being configured to provide output power, and being coupled to the input, a plurality of switching devices, each switching device of the plurality of switching devices being coupled to a respective output of the plurality of outputs, and a controller coupled to each of the plurality of switching devices. The controller is configured to receive power information indicative of the output power provided by each output of the plurality of outputs, determine, based on the power information, that an overcurrent condition exists, select, based on the power information and based on the determination that the overcurrent condition exists, at least one of the plurality of switching devices to disable, and disable the at least one switching device.

Abstract: Systems, methods, and computer-readable mediums are provided for improving the efficiency of a filter-type oil separator in a cooling system including a compressor that pumps a mixture of lubricating oil and refrigerant through the filter-type oil separator. The filter type oil separator is configured to receive a first portion of the mixture from the compressor, and a bypass line is configured to bypass a second portion of the mixture around the filter-type oil separator. The bypass line ensures a sufficient amount of oil is present in the compressor.

Abstract: Examples of the disclosure include a UPS comprising an output to be coupled to a load, a first converter leg to provide a first voltage to the output and including at least one of a first relay or fuse, a second converter leg in parallel with the first converter leg including at least one of a second relay or fuse and configured to provide a second voltage to the output out of phase with the first converter leg providing the first voltage signal, current sensors coupled to the first and second converter legs, respectively, and configured to provide a first signal indicative of a current in the first converter leg and a second signal indicative of a current in the second converter leg, respectively, and at least one controller to receive the signals, determine a current difference between the converter legs based on the signals, and decrease the current difference.

Abstract: An Uninterruptible Power Supply (UPS) including an input configured to receive input AC power having an input AC voltage, a backup power input configured to be coupled to a backup power source and to provide DC power to the backup power source for charging, a positive DC bus and a negative DC bus, the positive and negative DC busses being galvanically coupled to the backup power input, and a converter coupled to the input, the backup power input, and the positive and negative DC busses, the converter including a first inductor, a second inductor, a first converter switch configured to couple the first inductor to a neutral connection, a second converter switch configured to couple the second inductor to the positive DC bus, and a third converter switch configured to couple the second inductor to the negative DC bus, wherein the UPS is voltage-frequency independent.

Abstract: Power systems and methods are provided that receive input power and provide output power to a load. Under a first state of operation, power conversion circuitry may receive the input power and provide the output power. A bypass switch includes a controller that detects a failure condition by detecting a link down state on a communications interface. In response to detecting the link down state, the switch controller operates the bypass switch to convey the input power to the output in a second state of operation. The second state of operation is a bypass state of operation whereby the power conversion circuitry is bypassed.

Abstract: A power supply including an input configured to receive input power, an output configured to provide output power to a load, at least one relay, a crowbar circuit configured to selectively divert the input power away from the load, and a controller configured to detect a high-voltage condition at the input, activate, in response to detecting the high-voltage condition at the input, the crowbar circuit to divert the input power away from the load, output, in response to detecting the high-voltage condition at the input, a signal to operate the at least one relay to transition from a first state to a second state, and deactivate the crowbar circuit in response to a determination that the at least one relay has transitioned to the second state.

Abstract: Aspects of the disclosure include a non-transitory computer-readable medium storing computer-executable instructions for controlling at least one uninterruptible power supply (UPS) configured to provide power to at least one server executing one or more services, the instructions instructing at least one processor to receive an indication of the services initiating a shutdown procedure, determine that a predicted shutdown time (PST) of the shutdown procedure exceeds a baseline shutdown time (BST) to perform the shutdown procedure, the BST being less than an available runtime of the UPS, control the UPS to continue providing power to the server responsive to determining that the PST is less than the available runtime and that the PST exceeds the BST, receive an indication that the shutdown procedure is successfully executed over an actual shutdown time (AST), and update the BST responsive to determining that the AST is different than the BST.

Abstract: According to an example, an uninterruptible power supply is provided comprising a first input, a backup input, an output to provide output power, an inverter coupled to the first input, the backup input, and the output, a first sensor to detect a voltage at an inverter output, a second sensor to detect a voltage at the first input, a switch coupled between the first input and the output, and a controller coupled to the switch and the first and second sensors, and configured to determine a first voltage difference across the bypass switch using at least one of the first sensor or the second sensor, filter the first voltage difference, determine whether a value derived from the first filtered voltage difference exceeds a threshold, and output an indication of a failure of the bypass switch based on the value derived from the first filtered voltage difference exceeding the threshold.

Abstract: According to at least one aspect of the present disclosure, an information-technology-design system is provided comprising at least one processor coupled to at least one memory, wherein the at least one processor is configured to receive information-technology-device information indicative of a plurality of information-technology devices in a space, the information-technology-device information including information-technology-device-location information, temperature information, and capture-index information, determine, based on the information-technology-device information, a containment type of the plurality of information-technology devices, select, based on the containment type, at least a portion of the capture-index information, determine, based on the information-technology-device-location information, the temperature information, and the at least the portion of the capture-index information, a respective cooling-performance assessment for each information-technology device of the plurality of informa

Abstract: According to certain aspects of the disclosure, an uninterruptible power supply is provided comprising an input, a backup power supply, an output configured to provide output power from the input and/or the backup power supply, a sensor, a relay, and a controller coupled to the sensor and the relay and being configured to determine, based on stored relay specifications, a manufacturer total estimated relay lifetime, receive operational information indicative of operational parameters of operation of the relay from the sensor, the operational information including a current conducted by the relay, determine, based on the operational information, an effective number of relay cycles consumed by the operation of the relay, determine a modified number of remaining relay cycles based on a difference between the manufacturer total estimated lifetime and the effective number of relay cycles consumed, and output remaining relay lifetime information indicative of the modified number of remaining relay cycles.

Abstract: An Uninterruptible Power Supply (UPS) including a charger configured to convert input AC power into DC power having a first voltage level, a DC-DC converter configured to convert the DC power having the first voltage level into DC power having a DC bus voltage level, a DC bus coupled to the DC-DC converter, an inverter coupled to the output via an output switch and configured to convert the DC power having the DC bus voltage level into output AC power, a bypass line including a bypass switch coupled between the input and the output switch, a rectifier coupled between the bypass line and the DC bus, and a controller configured to operate the UPS in a first mode of operation to provide DC power to the DC bus via the DC-DC converter and in a second mode of operation to provide DC power to the DC bus via the rectifier.

Abstract: Aspects of the disclosure include a power device having a first input configured to be coupled to a main power source, a second input configured to be coupled to a back-up power source, an output configured to be coupled to a load, the load being configured to perform a procedure, and at least one controller configured to determine a required energy for the load to perform the procedure, estimate an amount of available energy predicted to be available to the power device during the procedure, the available energy being derived from at least the back-up power source, determine whether the amount of available energy predicted to be available is equal to or greater than the required energy, and prevent power from being provided at the output responsive to determining that the amount of available energy predicted to be available is less than the required energy.

Abstract: According to one example, an electrical device is provided comprising electrical-device components, a first memory configured to store data temporarily, a second memory, the second memory being non-volatile memory, and a control device configured to acquire data indicative of at least one parameter of at least one electrical-device component of the electrical-device components responsive to a sample condition being met, store the acquired data in the first memory, determine that a fault condition exists based on the acquired data, the fault condition being indicative of a fault of one or more of the electrical-device components, and store the acquired data in the second memory responsive to determining that the fault condition exists.

Abstract: An Uninterruptible Power Supply (UPS) including an input configured to receive input AC power having an input AC voltage, a backup power input configured to be coupled to a backup power source and to provide DC power to the backup power source for charging, a positive DC bus and a negative DC bus, the positive and negative DC busses being galvanically coupled to the backup power input, and a converter coupled to the input, the backup power input, and the positive and negative DC busses, the converter including a first inductor, a second inductor, a first converter switch configured to couple the first inductor to a neutral connection, a second converter switch configured to couple the second inductor to the positive DC bus, and a third converter switch configured to couple the second inductor to the negative DC bus, wherein the UPS is voltage-frequency independent.

Abstract: A bi-directional AC/DC converter is provided including a DC-power connection configured to be coupled to a DC-power source, an AC-power connection configured to be coupled to at least one of an AC-power source or a load, a multiplexer having a plurality of multiplexer switches, at least one interleaved bridge circuit having a plurality of bridge switches coupled to the multiplexer, and a positive DC node and a negative DC node coupled to the plurality of multiplexer switches, wherein the plurality of bridge switches includes at least two bridge switches coupled between the AC-power connection and at least one of the positive DC node or the negative DC node.

Abstract: A power converter system including an input configured to receive input AC power from an input power source, the input power source having a peak voltage limit, at least one output configured to provide output power to at least one load, a charger coupled to the input and configured to convert the input AC power into first DC power, a DC bus configured to receive the first DC power, at least one power converter configured to convert DC power from the DC bus into the output power, and an auxiliary power source coupled to the DC bus and configured to provide second DC power to the DC bus to supplement the first DC power provided by the charger in response to a voltage demand of the at least one load exceeding the peak voltage limit of the input power source.

Abstract: According to at least one aspect of the present invention, a system for automatically generating a data-center network mapping for automated alarm consolidation is provided comprising a plurality of devices, and at least one computing device communicatively coupled to each of the devices, the at least one computing device being configured to receive operational data from each of the devices, the operational data being indicative of at least one of a power path, cooling or temperature zones, or communications paths, determine, based on the operational data, device relationships between each of the devices, receive, from each of the devices, a respective alarm of a plurality of alarms, determine alarm relationships between at least two of the plurality of alarms, consolidate, based on the determined device relationships and based on the determined alarm relationships, the plurality of alarms into a consolidated alert, and provide the consolidated alert to a user.

Abstract: According to an aspect of the present disclosure, an uninterruptible power supply (UPS) system is provided. The UPS system includes a first input configured to be coupled to an input power source, a second input configured to be coupled to an energy storage device, an output configured to provide output power, a power conversion circuit (PCC) configured to convert power received from at least one of the input power source or the energy storage device, an output circuit coupled to the PCC and the output, and a controller. The PCC includes a first inductor and a second inductor magnetically coupled to the first inductor. The controller is configured to control the PCC to provide, via the first inductor, DC power derived from the input power source to the output circuit, and provide, via the first and second inductors, DC power derived from the energy storage device to the output circuit.

Abstract: A level sensing module for use with a liquid immersion cooling system having a device chassis housing an electronic device, the level sensing module comprising a fluid level sensor, and a controller coupled to the fluid level sensor and configured to receive a signal from the fluid level sensor indicative of a height of dielectric fluid in the device chassis, receive a signal from a pump controller indicative of a volume of dielectric fluid provided to the device chassis, and generate a map of dielectric fluid volume within the device chassis based on the signal from the fluid level sensor and the signal from the pump controller.