Patent application number | Description | Published |
20100277000 | Efficiency Power Supply System Having A Redundant Supply That Remains Online While Sourcing No Current - Plural electric power supplies are connected in parallel to an output bus. The plural supplies include a primary power supply and a redundant switching power supply. The primary power supply is configured to provide output current to a load when the primary power supply is operating normally. The redundant supply is configured to remain online while not providing output current to the load when the primary power supply is operating normally, but to begin providing output current to the load when the primary power supply is not operating normally. | 11-04-2010 |
20100281281 | Server with Multiple Power Supplies - One exemplary embodiment is a server that includes multiple power supplies. When the server is in a standby state, one power supply is in a standby state and another power supply is in a deep sleep state. | 11-04-2010 |
20100327656 | MULTIPLE POWER SUPPLY CONTROL - Apparatus and methods are provided. A system includes two or more power supplies receiving electrical energy from respective independent sources. One of the power supplies detects an anomalous condition of the associated energy source and provides an alert signal. At least one of the other power supplies transitions from a standby mode to a normal output mode in response to the alert signal. The failing power supply provides operating level energy to an electrical load while the one or more other power supplies transition from standby to normal output level. | 12-30-2010 |
20110025129 | REDUNDANT POWER SUPPLY SYSTEMS AND METHODS - A redundant power supply method is provided. The method includes communicatively coupling a load to a first source via a plurality of first power supplies and to a second source via a plurality of second power supplies. The method further includes bi-directionally communicatively coupling a controller to the plurality of first power supplies and to the plurality of second power supplies. The method includes activating a first portion of the plurality of first power supplies to supply power to the load, wherein the controller determines the number (āNā) of first power supplies activated, and activating at least one of the plurality of second power supplies to supply power to the load. The method also includes monitoring for at least one fault condition in each of the active first power supplies and in each of the active second power supplies. | 02-03-2011 |
20110095607 | System and Method for Supplying Power to a Load Using Deep-Sleep-Mode Power Supplies - A system and method are provided for supplying power to a load using deep-sleep-mode power supplies. Each of plural switching power supplies includes an input converter, an output converter and a standby converter. Each is configured to have its output converter connected to the load, and each is configured to operate in at least an online mode in which the input, output and standby converters are enabled for switching, and a deep sleep mode in which the input, output and standby converters are disabled from switching. A system controller is configured to place a first set of the plural switching power supplies in the online mode and a second set of the plural switching power supplies in the deep sleep mode while the load is operating and the power supplies in the first set are supplying power to the load. | 04-28-2011 |
20110096522 | Power Conversion And Distribution Scheme For Electronic Equipment Racks - A system is provided for powering electronic system modules in an equipment rack. A circuit breaker is mounted to the rack and configured to receive a rack AC power feed. An AC-DC converter module is mounted to the rack and configured to receive the rack AC power feed from the circuit breaker and to convert it to a first DC voltage at an output. A set of switching DC-DC output converters is provided. Each is disposed physically proximate to or within one of the electronic system modules and is configured to convert the first DC voltage to a second DC voltage suitable for consumption by the proximate electronic system module. A bus is configured to distribute the first DC voltage from the output to each of the switching DC-DC output converters. | 04-28-2011 |
20110219243 | Supplying Power To A Computer System During A Holdup Time - A method for powering a computer system is disclosed. The method supplies power to a power distribution system in the computer using power components in the power supply when the power supply in the computer system is receiving AC power. When the AC power to the power supply is interrupted, at least one component in the computer system coupled to the power distribution system is powered down and power to the power distribution system is supplied using an energy storage device in the power supply for a holdup time H. | 09-08-2011 |
20110228471 | FAN CONTROL SYSTEM AND METHOD - One embodiment provides a system for controlling one or more pulse width modulated (PWM) fans. The system can include a control system configured to provide a voltage control signal corresponding to a DC output voltage for the one or more PWM fans. A variable DC voltage source is configured to supply the DC output voltage to the plurality of fans at one of at least two different DC voltages based on the voltage control signal. The DC output voltage from the variable DC voltage source is separate from a PWM control signal that is also supplied to the PWM fans. | 09-22-2011 |
20110254374 | SYSTEM AND METHOD FOR A REDUNDANT POWER SOLUTION - A redundant power solution system, including at least a first and second input module, each configured for receiving input power, an output converter, wherein a first output line from the first input module and a second output line from the second module both feed into the output converter, and a control mechanism associated with the first and second input modules, wherein the control mechanism monitors the input power received by the first and second input modules and dynamically selects at least one of the first and second input modules to feed power into the output converter. | 10-20-2011 |
20110310646 | CIRCULATING CURRENT DETECTION FOR REDUNDANT POWER SUPPLY - A system and method for detecting a circulating current in a redundant AC-DC power supply is disclosed. In one embodiment, a redundant AC-DC power supply system can include a first AC-DC power converter that is configured to generate a first DC output. A second AC-DC power converter is configured to generate a second DC output. An output circuit is configured to provide an output voltage based on at least one of the first and second DC outputs. A controller is configured to control the first and second AC-DC power converters for providing at least one of the first and second DC outputs to the output circuit, the controller being configured to detect a circulating current condition in at least one idle converter of first and second AC-DC power converters. | 12-22-2011 |
20110310647 | REDUNDANT PARALLEL NON-ISOLATED INPUT CONVERTERS - A redundant AC-DC power supply system and method is disclosed. A first AC-DC power converter is configured to generate a first output voltage and a first relay is configured to selectively couple and decouple the first AC-DC power converter to an output of an output circuit. A second AC-DC power converter is configured to generate a second output voltage. A second relay is configured to selectively couple and decouple the second AC-DC power converter to the output. A controller is configured to operate the first and second AC-DC power converters and the first and second relays to provide redundant sources of power for the output and to mitigate circulating current flow between the first and second AC-DC power converters. | 12-22-2011 |
20120007430 | REDUNDANT POWER SUPPLY SYSTEMS AND METHODS - A redundant power supply method is provided. The method includes communicatively coupling a load to a first source via a plurality of first power supplies and to a second source via a plurality of second power supplies. The method further includes bi-directionally communicatively coupling a controller to the plurality of first power supplies and to the plurality of second power supplies. The method includes activating a first portion of the plurality of first power supplies to supply power to the load, wherein the controller determines the number (āNā) of first power supplies activated, and activating at least one of the plurality of second power supplies to supply power to the load. The method also includes monitoring for at least one fault condition in each of the active first power supplies and in each of the active second power supplies. | 01-12-2012 |
20120026763 | Energy-Efficient Standby Mode In A Switching Power Supply - A switching power supply includes power factor correction circuitry and a standby output converter. One or more loads may be coupled to one or more outputs of the switching power supply. The switching power supply is configured to disable the power factor correction circuitry under some load conditions and to enable the power factor correction circuitry under other load conditions. As a consequence, power that would have been drawn by the power factor correction circuitry is conserved when the power factor correction circuitry is disabled. | 02-02-2012 |
20120109555 | ADAPTIVE RATING FOR BACKUP POWER SUPPLY - Systems and methods of an adaptive rating for a backup power supply are disclosed. An exemplary method includes measuring electrical output for a load. The method also includes determining an adaptive rating for at least one battery module of a backup power supply. The method also includes storing changing adaptive ratings for the at least one battery module over time based on the measured electrical output for the load. | 05-03-2012 |
20120249110 | POWER CONVERTER - A power converter ( | 10-04-2012 |
20120283892 | Managing Electric Energy Distribution To Multiple Loads Using Selective Capping - An electric energy distribution system may include plural loads configured to receive electric energy from a common feed or branch. Each of the loads may be configured to operate in at least first and second modes such that it may consume current, VA or power up to a first cap when running in its first mode and up to a second cap when running in its second mode. The first cap may be higher than the second cap. A sensor component may monitor a parameter that corresponds to an aggregate amount of electric energy being consumed by all of the plural loads from the common feed or branch. A manager component may be configured, when the parameter meets or exceeds the threshold, to select one of the loads currently running in its first mode and to cause the selected load to run in its second mode. | 11-08-2012 |
20120307528 | IMPEDANCE CONTROL FOR A POWER CONVERTER - A power supply system and method are disclosed. The system includes a power converter comprising a switching stage to conduct an output current in response to switching signals having a defined duty-cycle. The output current can be provided at an output of the power converter system. The system also includes a current monitor to sense a magnitude of the output current. The system further includes a gate drive controller to generate the switching signals and to control an output impedance of the switching stage based on the sensed magnitude of the output current to control the magnitude of the output current. | 12-06-2012 |
20130010511 | OUTPUT INDUCTOR VOLTAGE REGULATION - A power supply system and method are disclosed. The system includes a switching stage to provide an output current through an output inductor in response to a switching signal having a substantially fixed duty-cycle. The system also includes a load monitor to monitor a load of the power supply system. The system further includes a gate drive controller to generate the switching signal and to change operation of the switching stage from a normal operating mode to a light-load operating mode in response to the load being less than a predetermined threshold to substantially minimize a voltage across the output inductor in the light-load operating mode. | 01-10-2013 |
20130026832 | System And Method For Balancing Input Current With Parallel Power Supplies - A method for balancing input current with at least two parallel power supplies, including the steps of defining an input current difference tolerance, measuring input current from the at least two parallel power supplies, calculating an absolute value of the difference between the two measured input currents, and when the calculated value exceeds the tolerance, performing the subset of steps including employing an adjustment technique to calculate new operating parameters for the two power supplies, configuring the two power supplies with the new operating parameters, and repeating the steps above except for the defining step. | 01-31-2013 |
20130099756 | BACKUP POWER SUPPLY SYSTEMS AND METHODS - Backup power supply systems and methods are disclosed. An exemplary method includes providing at least one battery module having a first register with at least one battery parameter. The method also includes coupling an intelligent interface converter (IIC) between the at least one battery module and an electrical load, the IIC having a second register with at least one battery parameter. The method also includes communicating the at least one battery parameter to a user for reporting and management operations. | 04-25-2013 |
20130117592 | POWER CAPPING SYSTEM - A method for power capping is disclosed. The power supplied to a load from a power supply is compared to a power capping limit | 05-09-2013 |
20130128637 | POWER RAIL REGULATOR SYSTEM - A power regulators system and method is disclosed. In one embodiment, a power regulator system ( | 05-23-2013 |
20140006812 | DATA AND DIGITAL CONTROL COMMUNICATION OVER POWER | 01-02-2014 |