Patent application number | Description | Published |
20090146622 | PHASE SHEDDING CONVERTER WITH RIPPLE MINIMIZATION - In an information handling system, a multi-phase electrical converter includes an electrical input, an electrical output, a plurality of converter phases coupled with the electrical input and the electrical output, and a controller to ramp operation of one or more of the converter phases as a load demand adjusts. In an embodiment the converter may be a multi-phase buck converter having a high side switch, a low side switch, and an inductor. In an embodiment, the controller may ramp operation of the converter phases by adjusting a duty cycle of the high side switch. In an embodiment, the controller may adjust a phase angle of one or more of the converter phases, wherein the adjustment may be relative to the ramping operation of the one or more of the converter phases. | 06-11-2009 |
20090271649 | VOLTAGE REGULATOR PHASE SHEDDING - A voltage regulator phase shedding system includes one or more subsystems to inventory memory power requirements of an IHS component, calculate a calculated memory power consumption, compare the calculated memory power consumption to a predetermined table of values to determine which phases of the voltage regulator to turn on, apply system power, assert desired phases of the voltage regulator after power is applied to the voltage regulator, and enable the voltage regulator to operate the desired phases of the voltage regulator. | 10-29-2009 |
20090322405 | Enhanced Transistor Gate Drive - An enhanced transistor gate drive is disclosed in which a pair of Kelvin sense leads measure the voltage potential across at the gate and source of the transistor. The difference in the voltage potential of the Kelvin sense lead from the gate and the Kelvin sense lead of the source is provided to a voltage controlled current source, which compares the output of the voltage differentiator to an oscillating voltage input. Changes to the voltage difference between the Kelvin sense connectors will result in more or less voltage being applied at the gate of the transistor, thereby parasitic inductance in the transistor from causing the device to switch on and off. | 12-31-2009 |
20110040987 | TIME AVERAGED DYNAMIC PHASE SHEDDING - A time averaged dynamic phase shedding system includes a system to generate a first phase electrical pulse using a phase 1 pulse generator and generate a second phase electrical pulse using a phase 2 pulse generator. The electrical current of the first phase electrical pulse and the electrical current of the second phase electrical pulse are sensed. The electrical pulses are combined into an output signal where a voltage level of the output signal is sensed. The time averaged dynamic phase shedding system turns off the phase 2 pulse generator in response to an average output current being below a current threshold and turns on the phase 2 pulse generator in response to the output signal having a change in output voltage with respect to the change in time (dv/dt) outside of a dv/dt threshold. | 02-17-2011 |
20110248689 | PHASE SHEDDING CONVERTER WITH RIPPLE MINIMIZATION - In an information handling system, a multi-phase electrical converter includes an electrical input, an electrical output, a plurality of converter phases coupled with the electrical input and the electrical output, and a controller to ramp operation of one or more of the converter phases as a load demand adjusts. In an embodiment the converter may be a multi-phase buck converter having a high side switch, a low side switch, and an inductor. In an embodiment, the controller may ramp operation of the converter phases by adjusting a duty cycle of the high side switch. In an embodiment, the controller may adjust a phase angle of one or more of the converter phases, wherein the adjustment may be relative to the ramping operation of the one or more of the converter phases. | 10-13-2011 |
20120324246 | SHARED NON-VOLATILE STORAGE FOR DIGITAL POWER CONTROL - Systems and methods may be implemented in a power device subsystem topology to provide an arbitration and communication scheme between a single consolidated non-volatile random access (NVRAM) memory device and multiple discrete digital power controller devices in a manner that provides data protection and the ability to update the full NVRAM content when needed. | 12-20-2012 |
20140067139 | DYNAMIC POWER BUDGET ALLOCATION - A dynamic power budget allocation system includes a plurality of powered subsystems. A power system controller is coupled to the plurality of powered subsystems. The power system controller is operable, for each of a plurality of time intervals, to retrieve power usage data from each of the plurality of subsystems during a current time interval. The power system controller is then operable to project power requirements for the plurality of subsystems for a subsequent time interval using the power usage data. The power system controller is then operable to determine at least one power setting for at least one of the plurality of subsystems using the power requirements, and program the at least one of the plurality of subsystems with the at least one power setting. Each powered subsystem may include a voltage regulator that provides the power usage data and is programmed with the at least one power setting. | 03-06-2014 |
20140095917 | DYNAMIC POWER SYSTEM ADJUSTMENT TO STORE ENERGY FOR POWER EXCURSIONS - A power system is coupled to a powered system and a system capacitance. The power system includes a power system output sensor, a power conversion device, and a power system output controller. The power system output controller includes a powered system threshold that is related to a power excursion capability of the powered system. The power system output controller is operable, in response to receiving a power system output signal from the power system output sensor that exceeds the powered system threshold, to control the power conversion device to increase the power system output from the power conversion device in order to increase the energy stored in the system capacitance for use by the powered system during a power excursion. The powered system may include processors that draw power from the system capacitance during power excursions so as to not exceed the limits of the power system. | 04-03-2014 |
20140101475 | POWER MANAGEMENT SYSTEM - A power management system includes a power system. A powered component is coupled to the power system. A power detect circuit is coupled to the power system. A power system controller is coupled to the power system, the powered component, and the power detect circuit. The power system controller is operable, for each of at least one workload run using the powered component, to program the power detect circuit with a first threshold for a first system operation setting and determine that the first threshold was not exceeded while the workload was running. The power system controller is then operable to program the power detect circuit with a second threshold for the first system operation setting, determine that the second threshold was exceeded while the workload was running and, in response, use the second threshold to allocate power from the power system. | 04-10-2014 |
20140108846 | SUPPLEMENTAL POWER SYSTEM FOR POWER EXCURSIONS - A supplemental power system for IHS power excursions includes a processor and a memory coupled to the processor. A power system is coupled to the processor and a plurality of power supply paths. A first power supply path is operable to supply power at a first voltage from the power system to the processor. A second power supply path is operable to store power from the power system at a second voltage that is greater than the first voltage, and the second power supply path is further operable to supply the power stored at the second voltage to the processor during power excursions by the processor. In some embodiments, the second power supply path may include a boost converter to increase power at the first voltage to the second voltage, or may receive power output at the second voltage from a supplemental power rail in the power system. | 04-17-2014 |
20140115353 | System and Method for One-Line Power Mapping of Information Handling Systems in a Datacenter - A method of one-line power mapping in a datacenter includes providing from a management system a pre-defined pattern to a rack system, in response to providing the pre-defined pattern, directing the rack system to enable a power supply unit of the rack system and to modulate a power usage of the rack system to encode the pre-defined pattern onto a power cable, wherein the power supply unit receives operating power from a power distribution unit via the power cable, receiving at the management system a power level signal from the power distribution unit, decoding at the management system the pre-defined pattern from the power level signal, and determining that the rack system is connected to the power distribution unit in response to decoding the pre-defined pattern. | 04-24-2014 |