Patent application number | Description | Published |
20140076549 | Systems and Methods for In Situ Monitoring of Cement Slurry Locations and Setting Processes Thereof - Optical analysis systems may be useful in monitoring fluids relating to cementing operations in or near real-time, e.g., for location and/or the status of a cement setting process. For example, method may involve containing a cement slurry within a flow path, the cement slurry having a chemical reaction occurring therein; and optically interacting the cement slurry with an integrated computational element, thereby generating an output signal corresponding to a characteristic of the chemical reaction. | 03-20-2014 |
20140076550 | Systems and Methods for Detecting Microannulus Formation and Remediation - Optical analysis systems may be useful in detecting microannulus formation in a wellbore casing and remediating a microannulus. In some instances, a system may include a cement sheath disposed about and in contact with at least a portion of an exterior surface of a casing; and at least one optical computing device arranged coupled to the casing, the at least one optical computing device having at least one integrated computational element configured to optically interact with a material of interest and thereby generate optically interacted light, and at least one detector arranged to receive the optically interacted light and generate an output signal corresponding to a characteristic of the material of interest, the material of interest comprising at least one selected from the group consisting of the cement sheath, a displacement composition disposed between the cement sheath and the exterior surface of the casing, and any combination thereof. | 03-20-2014 |
20140076551 | Systems, Methods, and Apparatuses for In Situ Monitoring of Cement Fluid Compositions and Setting Processes Thereof - Optical analysis systems, methods, and apparatuses for analyzing fluids may be useful for in situ monitoring fluids that relate to cementing operations. For example, a method may include containing a cement fluid composition in a flow path comprising a wellbore; and optically interacting the cement fluid composition with an integrated computational element, thereby generating an output signal corresponding to a characteristic of the cement fluid composition, the integrated computational element being coupled to a tool. | 03-20-2014 |
20140110115 | Gelling Agents and Methods of Using the Same - Additives are used in treatment fluids in subterranean operations to prevent fluid loss within a subterranean formation. A method includes providing a treatment fluid that includes a viscosifying polymer and a solid-liquid phase transition temperature modifier and placing the treatment fluid in a subterranean formation penetrated by a wellbore, wherein the solid-liquid phase temperature modifier is added in an amount to modulate the gelling temperature of the viscosifying polymer to a target temperature. | 04-24-2014 |
20140338916 | Methods and Compositions of Improving Wellbore Cleanout Treatments - Methods of performing a cleanout treatment including providing a wellbore in a subterranean formation having unconsolidated particulates therein; providing a treatment fluid comprising an aqueous base fluid and a hydrophobically modified flocculating water-soluble polymer; introducing the treatment fluid into the wellbore in the subterranean formation; flocculating at least a portion of the unconsolidated particulates by exposure to the hydrophobically modified flocculating water-soluble polymer; removing the treatment fluid comprising the flocculated unconsolidated particulates from the wellbore in the subterranean formation. | 11-20-2014 |
20150075789 | Boronated Biopolymer Crosslinking Agents and Methods Relating Thereto - Boronated biopolymer crosslinking agents useful in producing viscosified treatment fluids that include an aqueous fluid, a base polymer, and the boronated biopolymer crosslinking agent, wherein the boronated biopolymer crosslinking agent comprises a biopolymer derivatized with a boronic acid, a boronate ester, or both. Such viscosified treatment fluids may be useful in fracturing operations, gravel packing operations, drilling operations, and the like. | 03-19-2015 |
Patent application number | Description | Published |
20120264885 | Hydrophobically and Cationically Modified Relative Permeability Modifiers and Associated Methods - Methods comprising providing a relative permeability modifier that comprises a hydrophilic polymer backbone with a hydrophobic modification and incorporating at least one cationic compound onto the hydrophilic polymer backbone. The hydrophilic polymer is one or more of: a polyacrylamide; a polyvinylamine; a poly(vinylamine/vinyl alcohol); an alkyl acrylate polymer; cellulose; chitosan; a polyamide; a polyetheramine; a polyhydroxyetheramine; a polylysine; a polysulfone; a gum; or a starch. The hydrophobic modification is achieved either by reacting the hydrophilic polymer with a hydrophobic compound or by a polymerization reaction product of a hydrophilic monomer and a hydrophobically modified hydrophilic monomer. The hydrophobic compound has an alkyl chain length from 4 to 22 carbons and is one or more of: an alkyl acrylate; an alkyl methacrylate; an alkyl acrylamide; an alkyl methacrylamide; or an alkyl dimethylammoniumethyl methacrylate halide. | 10-18-2012 |
20130277054 | Gellable Treatment Fluids Having Adjustable Gel Times and Methods Associated Therewith - Gellable treatment fluids may have their gel times modified by using a polymer mixture therein that contains two or more polymers having disparate average molecular weights. Methods for treating a subterranean formation using such gellable treatment fluids can comprise providing a gellable treatment fluid comprising a polymer mixture and a crosslinking agent, introducing the gellable treatment fluid into a subterranean formation, and allowing the gellable treatment fluid to form a gel in the subterranean formation. The polymer mixture comprises a base polymer and an addend polymer, where the base polymer and the addend polymer each comprise an acrylamide monomer unit or a derivative thereof and have different average molecular weights, such that a molecular weight distribution of the polymer mixture contains at least two local maxima. | 10-24-2013 |
20130319672 | Methods of Using Wellbore Servicing Compositions - A method of servicing a wellbore comprising preparing a composition comprising a non-aqueous carrier fluid, an oil-wetting surfactant, a water-imbibition enhancing surfactant, and a cementitious material; placing the composition within a detrimentally permeable zone; and contacting the composition with water. A method of servicing a wellbore comprising placing a composition comprising a non-aqueous carrier fluid, an oil-wetting surfactant, a water-imbibition enhancing surfactant, and a cementitious material into the wellbore wherein the wellbore comprises hydrocarbon-producing zones and water-producing zones and wherein the composition enters the water-producing zone and forms a solid mass that obstructs the flow of water in the water-producing zone. A method of servicing wellbore comprising placing a composition comprising a non-aqueous carrier fluid, an oil-wetting surfactant, a water-imbibition enhancing surfactant, and a cementitious material into a lost circulation zone within the wellbore; and contacting the composition in situ with a water source. | 12-05-2013 |
20140024561 | Absorbent Polymers, and Related Methods of Making and Using the Same - Compositions used in subterranean operations include absorbent polymers useful in controlling fluids within a subterranean formation; a method includes the steps of providing a treatment fluid having an absorbent polymer, the absorbent polymer including an aminoalcohol or polyamine-modified water-soluble polymer which includes a carboxylic acid derivative group, the method further includes placing the treatment fluid in at least a portion of a subterranean formation. | 01-23-2014 |
20140048260 | Hydration Acceleration Surfactants in Conjunction with High Molecular Weight Polymers, and Methods and Compositions Relating Thereto - A hydration acceleration surfactant may be utilized in conjunction with high molecular weight polymers in forming high viscosity, aqueous based treatment fluids. Forming such fluids may involve mixing an aqueous base fluid, a hydration acceleration surfactant, a crosslinker polymer, and a base polymer, thereby yielding a treatment fluid, wherein the base polymer is provided in the form of a first polymeric emulsion before mixing and/or the crosslinker polymer is provided in the form of a second polymeric emulsion before mixing. Further, such fluids may be useful in subterranean operations to perform for at least one function within the wellbore and/or the subterranean formation including bridge a fracture, provide fluid loss control, seal a rock surface, enable fluid diversion, plug a void, reduce formation permeability, control water production, and any combination thereof. | 02-20-2014 |
20140069644 | Wellbore Servicing Compositions and Methods of Making and Using Same - A method of servicing a wellbore in a subterranean formation comprising preparing a wellbore servicing fluid comprising a snake-in-cage composition; and placing the wellbore servicing fluid into a wellbore wherein the snake dissociates from the cage and enters one or more permeable zones within the wellbore. A wellbore treatment composition comprising a snake disposed within a cage wherein the cage comprises a crosslinked polymer. | 03-13-2014 |
20140076561 | MAGNESIUM CHLORIDE IN ALCOHOLIC SOLVENT FOR SOREL CEMENT - A non-hydraulic cement composition including: (i) a non-aqueous liquid phase comprising one or more organic compounds characterized by: (a) having at least one hydroxyl group on a carbon atom, (b) being a liquid when pure under Standard Laboratory Conditions, and (c) being at least soluble in water; (ii) one or more magnesium chloride compounds selected from the group consisting of: magnesium chloride, a magnesium chloride hydrate, and any combination thereof; and (iii) magnesium oxide; wherein the one or more organic compounds comprise at least 40% by weight of the non-aqueous liquid phase excluding the weight of any dissolved solids. A method of treating a well including the steps of: (A) forming the non-hydraulic cement composition; and (B) introducing the non-hydraulic cement composition into the well. | 03-20-2014 |
20140090842 | Cement Compositions Comprising Deagglomerated Inorganic Nanotubes and Associated Methods - A variety of methods and compositions are disclosed, including, in one embodiment, a method of cementing comprising: providing an aqueous dispersion comprising deagglomerated inorganic nanotubes and water; preparing a cement composition using the aqueous dispersion; introducing the cement composition into a subterranean formation; and allowing the cement composition to set. Another method comprises a method of cementing comprising: providing an ultrasonicated aqueous dispersion comprising deagglomerated nanoparticles, a dispersing agent, and water; preparing a cement composition using the aqueous dispersion; introducing the cement composition into is subterranean formation; and allowing the cement composition to set. | 04-03-2014 |
20140116703 | Wellbore Servicing Methods and Compositions Comprising Degradable Polymers - A method of servicing a wellbore comprising providing a degradable polymer within a portion of a wellbore, a subterranean formation or both; preparing a wellbore servicing fluid comprising a degradation accelerator wherein the degradation accelerator comprises an alkanolamine, an oligomer of aziridine, a polymer of azridine, a diamine, or combinations thereof; and placing the wellbore servicing fluid comprising a degradation accelerator into the wellbore, the subterranean formation or both wherein the degradation accelerator contacts the degradable polymer. | 05-01-2014 |
20140116704 | Wellbore Servicing Methods and Compositions Comprising Degradable Polymers - A method of servicing a wellbore comprising providing a degradable polymer and a delayed action construct within a portion of a wellbore, a subterranean formation or both; wherein the delayed action construct comprises (i) a degradation accelerator comprising an alkanolamine, an oligomer of aziridine, a polymer of azridine, a diamine, or combinations thereof, (ii) a solid support, and (iii) an encapsulating material; and placing the wellbore servicing fluid comprising the degradable polymer and delayed action construct into the wellbore, the subterranean formation or both. | 05-01-2014 |
20140144639 | METHODS FOR HINDERING THE SETTLING OF PARTICULATES IN A SUBTERRANEAN FORMATION - Embodiments herein include a method comprising proving a treatment fluid comprising an activator and providing gas-forming particulates comprising coating particulates with a binding agent, wherein the binding agent holds a gas-generating chemical onto the particulates. The gas-forming particulates are suspended in the treatment fluid and the treatment fluid comprising the gas-forming particulates is introduced into a subterranean formation. The gas-generating chemical and the activator then react to generate gas-formed particulates. | 05-29-2014 |
20140174736 | Wellbore Servicing Materials and Methods of Making and Using Same - A method of servicing a wellbore in a subterranean formation comprising placing a composition comprising a carrier fluid and a degradable polymer into the subterranean formation wherein the degradable polymer comprises polyimide, allowing the degradable polymer to form a diverter plug at a first location in the wellbore or subterranean formation, diverting the flow of a wellbore servicing fluid to a second location in the wellbore or subterranean formation that is different than the first location; and removing all or a portion of the diverter plug by contacting the diverter plug with a degradation accelerator wherein the degradation accelerator comprises an amino alcohol, an amino alcohol precursor, an organic amine, an organic amine precursor or combinations thereof. A wellbore servicing fluid comprising polysuccinimide wherein the wellbores servicing fluid has a pH of less than about 7. | 06-26-2014 |
20140174737 | Wellbore Servicing Materials and Methods of Making and Using Same - A method of servicing a wellbore in a subterranean formation comprising placing a first wellbore servicing fluid comprising a diverter material into a wellbore, allowing the diverter material to form a diverter plug at a first location in the wellbore or subterranean formation, diverting the flow of a second wellbore servicing fluid to a second location in the wellbore or subterranean formation, and contacting the diverter plug with a third wellbore servicing fluid comprising a degradation accelerator and a phase transfer catalyst under conditions sufficient to form one or more degradation products. A method comprising contacting a diverter material with a phase transfer catalyst under conditions suitable to produce a composite material placing downhole a first wellbore servicing fluid comprising the composite material, and placing downhole a second wellbore servicing fluid comprising a degradation accelerator. | 06-26-2014 |
20140208983 | Wellbore Servicing Compositions and Methods of Using Same - A method of servicing a wellbore in contact with a subterranean formation, comprising placing into a wellbore a composition comprising a calcium aluminate cement and a polyvalent cation-containing compound, and allowing the composition to set. A method of increasing the thickening time of a calcium aluminate cement comprising contacting the calcium aluminate cement with a polyvalent cation-containing compound. A method of adjusting the thickening time of a calcium aluminate cement comprising contacting the calcium aluminate cement with a polyvalent cation-containing compound and at least one other set modifier. | 07-31-2014 |
20140287968 | Wellbore Servicing Compositions and Methods of Making and Using Same - A method of servicing a wellbore in a subterranean formation comprising preparing a wellbore servicing fluid comprising an amino polyether multicarboxylic acid chelating agent and/or an amino polyether multicarboxylic acid chelating agent precursor, and an aqueous base fluid, and contacting the wellbore servicing fluid with scale deposits on a surface in the wellbore and/or subterranean formation. A method of servicing a wellbore in a subterranean formation comprising preparing a wellbore servicing fluid comprising an amino polyether multicarboxylic chelating agent precursor and an aqueous base fluid, and contacting the wellbore servicing fluid with scale deposits on a surface in the wellbore and/or subterranean formation. A scale-removing wellbore servicing fluid comprising an amino polyether multicarboxylic acid chelating agent and/or an amino polyether multicarboxylic acid chelating agent precursor, and an aqueous base fluid. | 09-25-2014 |
20140303046 | Wellbore Servicing Materials and Methods of Making and Using Same - A method of servicing a wellbore in a subterranean formation comprising placing a wellbore servicing fluid in the wellbore and/or subterranean formation, wherein the wellbore servicing fluid comprises a viscosifying polymeric material, a breaking agent comprising an inorganic peroxide of a divalent metal M(II) characterized by the general formula MO | 10-09-2014 |
20140318785 | Wellbore Servicing Compositions and Methods of Making and Using Same - A method of servicing a wellbore in a subterranean formation comprising placing a liquid additive composition comprising (i) a liquid non-aqueous continuous phase; (ii) a discontinuous phase comprising a water-soluble polymeric additive; (iii) emulsion-stabilizing and water-wetting surfactants and (iv) a discontinuous phase release control agent. A method of servicing a wellbore comprising placing a wellbore servicing fluid comprising (i) a cementitious material and (ii) a liquid additive composition comprising a fluid loss additive and a discontinuous phase release control agent into the wellbore and/or subterranean formation; and allowing the cement to set. A wellbore servicing composition comprising a cement slurry and a liquid additive composition comprising (i) an acid gelling polymer (ii) an invert emulsion; (iii) a water-wetting surfactant; (iv) an emulsion-stabilizing surfactant; and (v) a discontinuous phase control release agent wherein the acid-gelling polymer is disposed within the invert emulsion. | 10-30-2014 |
20140338907 | Wellbore Servicing Materials and Methods of Making and Using Same - A method of servicing a wellbore in a subterranean formation comprising placing a wellbore servicing fluid in the wellbore and/or subterranean formation, wherein the wellbore servicing fluid comprises a hydrophobically modified relative permeability modifier, an oxygenated alkylating agent, and an aqueous base fluid, and allowing the wellbore servicing fluid to modify the permeability of at least a portion of the wellbore and/or subterranean formation. | 11-20-2014 |
20150284622 | GELLABLE TREATMENT FLUIDS COMPRISING AMINO GROUP GEL-TIME MODIFIERS - Gellable treatment fluids comprising: an aqueous base fluid; a base polymer comprising an acrylamide monomer unit; an organic crosslinking agent comprising a crosslinkable polymer; and a gel-time modifier. The organic crosslinking agent comprising a crosslinkable selected from the group consisting of polyethyleneimine, polyvinylamine, any derivative thereof, any salt thereof, and any combination thereof. The gel-time modifier comprising at least one amino group, any salt thereof, any derivative thereof, or any combination thereof. | 10-08-2015 |
20150300140 | ACID DIVERSION TREATMENTS IN INJECTION WELLS USING PERMEABILITY MODIFIERS - Some embodiments herein comprise providing a treatment fluid comprising an aqueous base fluid, an acid, a permeability modifier, and a permeability modifier deactivator; providing an injection well having a first treatment zone comprising a first aqueous formation permeability, wherein the first treatment zone comprises formation damage; introducing the treatment fluid into the injection well, so as to contact the acid, the permeability modifier, and the permeability modifier deactivator with the first treatment zone; reacting the acid with the first treatment zone so as to repair a portion of the formation damage; reacting the permeability modifier with the first treatment zone so as to cause the first aqueous formation permeability to adopt a second, lesser aqueous formation permeability; and contacting the permeability modifier deactivator with the permeability modifier so as to deactivate the permeability modifier and restore the first treatment zone to about the first aqueous formation permeability. | 10-22-2015 |
20150322328 | COLLOIDAL HIGH ASPECT RATIO NANOSILICA ADDITIVES IN SEALANTS AND METHODS RELATING THERETO - Colloidal high aspect ratio nanosilica additives that comprise colloidal high aspect ratio nanosilica particles having an average diameter of about 100 nm or less and an average aspect ratio of about 1.5 or greater may be useful in forming sealants in a wellbore, a subterranean formation, or both. For example, a method may include introducing a wellbore fluid into a wellbore penetrating a subterranean formation, the wellbore fluid comprising an aqueous base fluid, an activator, and a colloidal high aspect ratio nanosilica additive; placing the wellbore fluid into a portion of the wellbore, a portion of the subterranean formation, or both; and forming a sealant that comprises the colloidal high aspect ratio nanosilica additive therein. | 11-12-2015 |
20150337656 | System and Method for Collecting a Representative Formation Fluid During Downhole Testing Operations - A method for collecting a formation fluid for testing includes introducing a formation sample tool having a first port and a second port into a wellbore. A first fluid is injected through the first port into the formation to clear a sample passage and allow access to uncontaminated formation fluid. A second fluid is injected through the second port into the formation to provide a barrier adjacent to or around the sample passage. A sample of the uncontaminated formation fluid is removed from the formation through the first port. | 11-26-2015 |
20150361321 | GELLABLE TREATMENT FLUIDS COMPRISING QUATERNARY AMMONIUM SALT GEL-TIME MODIFIERS AND METHODS FOR USE THEREOF - Methods for reducing the amount of water produced from a subterranean formation can include the use of a gellable treatment fluid that comprises a quaternary ammonium salt as a gel-time modifier. The gellable treatment fluids can comprise an aqueous base fluid, a base polymer comprising an acrylamide monomer unit, an organic crosslinking agent, and a gel-time modifier comprising a quaternary ammonium salt. | 12-17-2015 |
20160053166 | GELLABLE TREATMENT FLUIDS HAVING ADJUSTABLE GEL TIMES AND METHODS ASSOCIATED THEREWITH - Gellable treatment fluids may have their gel times modified by using a polymer mixture therein that contains two or more polymers having disparate average molecular weights. Methods for treating a subterranean formation using such gellable treatment fluids can comprise providing a gellable treatment fluid comprising a polymer mixture and a crosslinking agent, introducing the gellable treatment fluid into a subterranean formation, and allowing the gellable treatment fluid to form a gel in the subterranean formation. The polymer mixture comprises a base polymer and an addend polymer, where the base polymer and the addend polymer each comprise an acrylamide monomer unit or a derivative thereof and have different average molecular weights, such that a molecular weight distribution of the polymer mixture contains at least two local maxima. | 02-25-2016 |
20160084068 | SYSTEMS, METHODS, AND APPARATUSES FOR IN SITU MONITORING OF CEMENT FLUID COMPOSITIONS AND SETTING PROCESSES THEREOF - Optical analysis systems, methods, and apparatuses for analyzing fluids may be useful for in situ monitoring fluids that relate to cementing operations. For example, a method may include containing a cement fluid composition in a flow path comprising a wellbore; and optically interacting the cement fluid composition with an integrated computational element, thereby generating an output signal corresponding to a characteristic of the cement fluid composition, the integrated computational element being coupled to a tool. | 03-24-2016 |
20160102238 | Wellbore Servicing Compositions and Methods of Making and Using Same - A method of servicing a wellbore in a subterranean formation comprising preparing a wellbore servicing fluid comprising cement, an aqueous fluid, and a cyclodextrin, a cyclodextrin derivative, or combination thereof; placing the wellbore servicing fluid in the wellbore and allowing the fluid to set. A wellbore servicing fluid comprising cement, aqueous fluid, and a cyclodextrin, cyclodextrin derivative, or combination thereof. | 04-14-2016 |
Patent application number | Description | Published |
20100058091 | System and Method for Managing Information Handling System Power Supply Capacity Utilization - An information handling system having plural processing modules, such as an information handling system blade chassis having plural information handling system blades, allocates power by determining an actual load sharing power loss associated with plural power supplies and applying the actual load sharing power loss to determine how much power to allocate to the information handling system modules. A chassis manager determines actual load sharing power loss by retrieving power information from plural power supplies. The actual load sharing power loss replaces a worst-case load sharing power loss assumed value to increase the amount power available for allocation to the information handling system modules. | 03-04-2010 |
20100211804 | System And Method For Dynamic Modular Information Handling System Power Distribution - Infrastructure power resources of a chassis information handling system are made available to run chassis information handling system modules when infrastructure devices are not using the power resources. For example, cooling fans that cool information handling system modules supported by an information handling system chassis run at variable speeds having variable power consumption. A power reserve maintained to run the cooling fans at full speed if needed is made available to information handling system modules when under power management by a chassis manager. | 08-19-2010 |
20100332873 | Power Supply Engagement and Method Therefor - An information handling system includes a plurality of power supply units (PSUs) to supply power to one or more system components. For each PSU of the plurality of PSUs, a power conversion efficiency profile for the PSU is determined using a power management control module of the information handling system. The power conversion efficiency profile represents a power conversion efficiency of the PSU for each of one or more power outputs capable of being supplied by the PSU. The power management control module determines a total amount of power to be supplied to a load of the information handling system, and engages a select number of PSUs to provide the total amount of power based on the total amount of power and the power conversion efficiency profiles of the PSUs. | 12-30-2010 |
20110029798 | Power Consumption Monitor and Method Therefor - A power supply unit of an information handling system determines that a power consumption module of the information handling system is available. If the power consumption module is available, the power supply unit measures input power of the power supply unit and provides a representation of the input power to the power consumption module in response to receiving a power measurement request from the power consumption module. If the power supply unit determines that the power consumption module is not available, the power supply unit measures input power of the power supply unit and stores a representation of the input power at the power supply unit independent of a power measurement request from the power consumption module. | 02-03-2011 |
20120137149 | System And Method For Managing Information Handling System Power Supply Capacity Utilization Based On Load Sharing Power Loss - An information handling system having plural processing modules, such as an information handling system blade chassis having plural information handling system blades, allocates power by determining an actual load sharing power loss associated with plural power supplies and applying the actual load sharing power loss to determine how much power to allocate to the information handling system modules. A chassis manager determines actual load sharing power loss by retrieving power information from plural power supplies. The actual load sharing power loss replaces a worst-case load sharing power loss assumed value to increase the amount power available for allocation to the information handling system modules. | 05-31-2012 |
20130262906 | Power Consumption Monitor and Method Therefor - A power supply unit of an information handling system determines that a power consumption module of the information handling system is available. If the power consumption module is available, the power supply unit measures input power of the power supply unit and provides a representation of the input power to the power consumption module in response to receiving a power measurement request from the power consumption module. If the power supply unit determines that the power consumption module is not available, the power supply unit measures input power of the power supply unit and stores a representation of the input power at the power supply unit independent of a power measurement request from the power consumption module. | 10-03-2013 |
20150100806 | Power Supply Engagement and Method Therefor Data - A system includes power supply units (PSUs) to supply power to components. For each PSU, a power conversion efficiency profile is determined. A maximum amount of power consumed during operation of the components is determined. A minimum number of PSUs capable of providing the maximum amount of power is determined. A first amount of power consumed at inputs of the minimum number of PSUs is calculated based on the maximum amount of power and based on the determined power conversion efficiency profile of each of the PSUs. A first number of PSUs to engage is determined, the first number greater than the minimum number of PSUs, wherein a total amount of power consumed at inputs of the first number of PSUs during operation of the system is less than the first amount of power, the determining based on the power conversion efficiency profile of each PSU. | 04-09-2015 |
Patent application number | Description | Published |
20130299189 | DRILLING RIG EMPLOYING PIVOTING DRILLING TOWER - An apparatus including a base, and a drilling tower pivotally coupled to the base to pivot the drilling tower between first and second pivot positions. The drilling tower includes a first portion, and a second portion pivotally coupled to the first portion to pivot the second portion between third and fourth pivot positions when the drilling tower is in the first pivot position. According to another aspect, a method includes pivotally coupling a drilling tower to a base, which includes providing a first portion of the drilling tower, pivotally coupling a second portion of the drilling tower to the first portion of the drilling tower, and pivotally coupling the first portion of the drilling tower to the base. | 11-14-2013 |
20130299190 | DRILLING RIG CARRIAGE MOVABLE ALONG RACKS AND INCLUDING PINIONS DRIVEN BY ELECTRIC MOTORS - According to one aspect, a drilling rig carriage is adapted to move along a drilling mast, and includes a body structure, electric motors coupled to the body structure, and pinions operably coupled to the electric motors, respectively. The pinions are adapted to engage racks, respectively. According to another aspect, a drilling mast includes a longitudinally-extending frame having a first side portion and a second side portion spaced therefrom. Racks are coupled to the frame at the first side portion thereof. According to yet another aspect, an apparatus includes a drilling mast or tower extending longitudinally along an axis, the tower including racks spaced in a parallel relation. A top drive is movable along the axis and relative to the tower. Electric motors are coupled to the top drive and movable therewith. Pinions are operably coupled to the electric motors, respectively, and engage the racks, respectively, to move the top drive. | 11-14-2013 |
20130302114 | DRILLING RIG EMPLOYING TUBULAR HANDLING DEVICE - A tubular handling device includes a first arm movable along, and pivotable about, a first axis, and a first gripper to engage a first tubular member, the first gripper being coupled to the first arm and rotatable, relative to the first arm, about a second axis that is perpendicular to the first axis. According to another aspect, a method includes providing a first gripper; coupling a first arm to the first gripper, moving the first arm, pivoting the first arm, and rotating the first gripper, relative to the first arm. According to another aspect, an apparatus includes a drilling tower, and a tubular handling device to position one or more tubular members proximate the drilling tower, the tubular handling device including a first gripper to engage a first tubular member, and a first arm coupled to the first gripper. | 11-14-2013 |
20130327543 | Drilling Rig Carriage Movable Along Racks and Including Pinions Driven by Electric Motors - According to one aspect, a drilling rig carriage is adapted to move along a drilling mast, and includes a body structure, electric motors coupled to the body structure, and pinions operably coupled to the electric motors, respectively. The pinions are adapted to engage racks, respectively. According to another aspect, a drilling mast includes a longitudinally-extending frame having a first side portion and a second side portion spaced therefrom. Racks are coupled to the frame at the first side portion thereof. According to yet another aspect, an apparatus includes a drilling mast or tower extending longitudinally along an axis, the tower including racks spaced in a parallel relation. A top drive is movable along the axis and relative to the tower. Electric motors are coupled to the top drive and movable therewith. Pinions are operably coupled to the electric motors, respectively, and engage the racks, respectively, to move the top drive. | 12-12-2013 |
20140259985 | SELF-ELEVATING MAST EMPLOYING ACTUATORS - A method includes accommodating a first mast section of a mast on a mast cart below a floor of a platform, the mast comprising a plurality of mast sections, and elevating, using actuators located on the mast cart, the first mast section through an opening in the platform. The method also includes attaching the first mast section to the platform using a plurality of holding locks located on the platform, accommodating a second mast section on the mast cart below the floor of the platform, and elevating the second mast section to the first mast section using the actuators. The method also includes attaching the first mast section to the second mast section, detaching the first mast section from the platform, elevating the first mast section and the second mast section through the opening using the actuators, and attaching the second mast section to the platform using the holding locks. | 09-18-2014 |
20140262518 | SELF-ELEVATING PLATFORM EMPLOYING ACTUATORS - A method including arranging a plurality of actuators into an operating position, arranging a first upper frame and a second upper frame proximate the actuators, attaching a support to the first upper frame and the second upper frame, wherein the support is located above the actuators, and extending the actuators to engage the support. The method also includes extending the actuators to raise the support, the first upper frame, and the second upper frame to a first position, arranging a first middle frame below the first upper frame and a second middle frame below the second upper frame, retracting the actuators to lower the support, the first upper frame, and the second upper frame to a second position, and attaching the first upper frame to the first middle frame and attaching the second upper frame to the second middle frame. | 09-18-2014 |
20140262519 | SELF-ELEVATING MAST EMPLOYING DRIVE CARRIAGE - A method includes attaching a carriage support to a platform, the platform comprising a platform floor having an opening therein, with the carriage support located proximate the opening, attaching a drive carriage to the carriage support, and operably coupling to the drive carriage a first mast section of a mast comprising a plurality of mast sections, and wherein the first mast section is located above the opening. The method also includes arranging a second mast section below the first mast section, lowering, using the drive carriage, the first mast section through the opening, attaching the first mast section to the second mast section, and raising, using the drive carriage, the first mast section and the second mast section through the opening. | 09-18-2014 |
20140262520 | SELF-ELEVATING MAST EMPLOYING DRAW WORKS - A method comprising attaching a first mast section to a support structure using a first plurality of fasteners located on the support structure, wherein a lower portion of the support structure is connected to and located above an opening in the platform comprising a platform floor, and wherein the first mast section has a line, a hook, and a pulley, with the line operably coupled to the pulley and connected to a hoist attached to the platform. The method also comprises lowering the hook, using the hoist, in a downward direction away from the pulley and through the opening, attaching the hook to a second mast section located below the platform floor, raising the hook and the second mast section, using the hoist, in an upward direction towards the pulley and through the opening, and connecting the first mast section to the second mast section. Additionally, the method comprises securing the first mast section and the second mast section with an overhead support located above the first mast section and connected to the first mast section, detaching the first mast section from the support structure, raising the first mast section and the second mast section away from the platform floor, using the overhead support, and attaching the second mast section to the first plurality of fasteners. | 09-18-2014 |
20150013994 | Bell Nipple Assembly Apparatus and Methods - An apparatus including a bell nipple assembly defining a first internal passage that includes two sections forming first and second internal passages that may be aligned by a flexible connector disposed between first and second flanges in one of the sections to at least partially adjust for an offset amount caused by longitudinal axis misalignment of the other section. Methods of adjusting for longitudinal axis offset between two misaligned components, such as of a bell nipple zone, are also encompassed. | 01-15-2015 |
20150015009 | LIFT-EYE IN POCKET APPARATUS AND METHODS - An apparatus for shipping goods may include a strut, a first beam, a second beam, a lift-eye housing interfacing with the strut, the first beam, and the second beam, and having an opening facing in the direction of the upper wall, and a lift-eye disposed within the lift-eye housing and configured to support the weight of the apparatus and to pivot from a stowed position within the lift-eye housing to a deployed position where a distal portion of the lift-eye projects out of the lift-eye housing. | 01-15-2015 |
20150075813 | SELF-ELEVATING MAST EMPLOYING DRIVE CARRIAGE - A method includes attaching a carriage support to a platform, the platform comprising a platform floor having an opening therein, with the carriage support located proximate the opening, attaching a drive carriage to the carriage support, and operably coupling to the drive carriage a first mast section of a mast comprising a plurality of mast sections, and wherein the first mast section is located above the opening. The method also includes arranging a second mast section below the first mast section, lowering, using the drive carriage, the first mast section through the opening, attaching the first mast section to the second mast section, and raising, using the drive carriage, the first mast section and the second mast section through the opening. In an exemplary embodiment, the platform floor is a rig floor. | 03-19-2015 |
20150090463 | AUTOMATED PIPE SLIPS - An automated pipe slips includes a pipe slips body having a generally frustoconically tapered inner wall. A plurality of wedges is positioned to slide along the tapered inner wall and may be hydraulically driven. In some embodiments, the wedges alternate between long and short wedges, such that only long wedges are used to engage a tubular member having a small diameter, and both long and short wedges are used to engage a tubular member having a large diameter. In some embodiments, the automated pipe slips may include a centralizer assembly. In some embodiments, the automated pipe slips may include a wiper assembly. | 04-02-2015 |
20150101826 | AUTOMATED ROUGHNECK - An automated roughneck may include a backup tong and a makeup tong. The makeup tong and backup tong may be selectively movable relative to one another. The makeup tong and backup tong may include spinner and gripper assemblies respectively adapted to make up and break out threaded connections. The automated roughneck may be configurable to be removable from the drill string in a lateral direction. | 04-16-2015 |
20150107165 | SELF-ELEVATING MAST EMPLOYING DRAW WORKS - A system comprising a support structure having a plurality of vertically extending members arranged to define a mast channel, the support structure attached to a platform having a rig floor and the support structure positioned above an opening in the rig floor; a first mast section that is attached to the support structure; a second mast section that is attached to the support structure and the first mast section; and a third mast section; wherein the system has a first arrangement in which the third mast section is located below the rig floor in a vertical position and is vertically spaced from the second mast; and wherein the system has a second arrangement in which the third mast section is attached to the second mast section and at least a portion of the third mast extends within the opening of the rig floor. | 04-23-2015 |
20150176338 | SELF-ELEVATING PLATFORM EMPLOYING ACTUATORS - An apparatus including a support; a first upper frame and a second upper frame each attached to the support; and removable actuators extending vertically from a base and located below the support and between the first and second upper frames, wherein the actuators are vertically extendable and retractable; wherein the actuators are adapted to engage the support and raise or lower the support upon the extension or retraction of each actuator; wherein the actuators are adapted to extend to a first height at which a first middle frame may be arranged below the first upper frame and a second middle frame may be arranged below the second upper frame; and wherein the actuators are adapted to retract to a second height at which the first middle frame may be attached to the first upper frame and the second middle frame may be attached to the second upper frame. | 06-25-2015 |
Patent application number | Description | Published |
20080225863 | DATA PROCESSING SYSTEM, METHOD AND INTERCONNECT FABRIC SUPPORTING MULTIPLE PLANES OF PROCESSING NODES - A data processing system includes a first plane including a first plurality of processing nodes, each including multiple processing units, and a second plane including a second plurality of processing nodes, each including multiple processing units. The data processing system also includes a plurality of point-to-point first tier links. Each of the first plurality and second plurality of processing nodes includes one or more first tier links among the plurality of first tier links, where the first tier link(s) within each processing node connect a pair of processing units in the same processing node for communication. The data processing system further includes a plurality of point-to-point second tier links. At least a first of the plurality of second tier links connects processing units in different ones of the first plurality of processing nodes, at least a second of the plurality of second tier links connects processing units in different ones of the second plurality of processing nodes, and at least a third of the plurality of second tier links connects a processing unit in the first plane to a processing unit in the second plane. | 09-18-2008 |
20080256391 | Apparatus to Use Fabric Initialization to Test Functionality of all Inter-Chip Paths Between Processors in System - A method, apparatus, and program for systematically testing the functionality of all connections in a multi-tiered bus system that connects a large number of processors. Each bus controller is instructed to send a test version of a snoop request to all of the other processors and to wait for the replies. If a connection is bad, the port associated with that connection will time out. Detection of a time-out will cause the initialization process to be halted until the problem can be isolated and resolved. | 10-16-2008 |
20080307137 | DATA PROCESSING SYSTEM, METHOD AND INTERCONNECT FABRIC FOR SYNCHRONIZED COMMUNICATION IN A DATA PROCESSING SYSTEM - A data processing system includes a plurality of processing units, including at least a local master and a local hub, which are coupled for communication via a communication link. The local master includes a master capable of initiating an operation, a snooper capable of receiving an operation, and interconnect logic coupled to a communication link coupling the local master to the local hub. The interconnect logic includes request logic that synchronizes internal transmission of a request of the master to the snooper with transmission, via the communication link, of the request to the local hub. | 12-11-2008 |
20090132791 | System and Method for Recovering From A Hang Condition In A Data Processing System - A data processing system, method, and computer-usable medium for recovering from a hang condition in a data processing system. The data processing system includes a collection of coupled processing units. The processing units include a collection of processing unit components such as, two or more processing cores, and a cache array, a processor core master, a cache snooper, and a local hang manager. The local hang manager determines whether at least one component out of the collection of processing unit components has entered into a hang condition. If the local hang manager determines at least one component has entered into a hang condition, a throttling manager throttles the performance of the processing unit in an attempt to break the at least one component out of the hang condition. | 05-21-2009 |
20090138640 | Data Processing System, Method and Interconnect Fabric Supporting Concurrent Operations of Varying Broadcast Scope - A data processing system includes a first processing node and a second processing node coupled by an interconnect fabric. The first processing node includes a plurality of first processing units coupled to each other for communication, and the second processing node includes a plurality of second processing units coupled to each other for communication. A first processing unit in the first processing node includes interconnect logic that processes a plurality of concurrently pending broadcast operations of differing broadcast scope. At least a first of the plurality of concurrently pending broadcast operations has a first scope limited to the first processing node, and at least a second of the plurality of concurrently pending broadcast operations has a second scope including the first processing node and the second processing node. | 05-28-2009 |
20090248940 | Information Handling System Including A Plurality Of Multiple Compute Element SMP Processors With Primary And Secondary Interconnect Trunks - An integrated circuit (IC) processor chip apparatus includes multiple processor chips on a substrate. At least one of the multiple processor chips includes a die with a primary interconnect trunk for communication of information between multiple compute elements situated along the primary interconnect trunk. That multiple processor chip includes a secondary interconnected trunk that may be oriented perpendicular with respect to the primary interconnect trunk. The secondary interconnect trunk communicates information off-chip via a number of I/O interfaces at the perimeter of that multiple processor chip. The I/O interfaces may be distributed uniformly along portions of the perimeter of that multiple processor chip. | 10-01-2009 |
20090248946 | Information Handling System Including Multiple Compute Element Processor With Primary And Secondary Interconnect Trunks - A symmetric multi-processing (SMP) processor includes a primary interconnect trunk for communication of information between multiple compute elements situated along the primary interconnect trunk. The processor also includes a secondary interconnected trunk that may be oriented perpendicular with respect to the primary interconnect trunk. The secondary interconnect trunk communicates information off-chip via a number of I/O interfaces at the perimeter of the processor chip. The I/O interfaces may be distributed uniformly along portions of the perimeter. | 10-01-2009 |
20150178208 | FREQUENCY DETERMINATION ACROSS AN INTERFACE OF A DATA PROCESSING SYSTEM - One or more systems, devices, methods, and/or processes described can determine a maximum cache command rate of a processor unit. For example, an interface of the processor unit configured to be coupled to an interconnect of a multiprocessor system and configured such that a first portion of the interface provides a signal to a second portion of the interface, where the first portion of the interface operates utilizing a known frequency and the second portion of the interface operates utilizing a cache frequency of the processor unit; the second portion of the interface circulates the signal; the first portion of the interface receives the signal from the second portion of the interface; the first portion of the interface determines a cache command rate based on the known frequency, the frequency of the cache, and the signal; and the interface provides information indicating the cache command rate to the interconnect. | 06-25-2015 |
20150178209 | FREQUENCY DETERMINATION ACROSS AN INTERFACE OF A DATA PROCESSING SYSTEM - One or more systems, devices, methods, and/or processes described can determine a maximum cache command rate of a processor unit. For example, an interface of the processor unit is configured to be coupled to an interconnect of a multiprocessor system and is configured such that a first portion of the interface provides a signal to a second portion of the interface, where the first portion of the interface operates utilizing a known frequency and the second portion of the interface operates utilizing a cache frequency of the processor unit; the second portion of the interface circulates the signal; the first portion of the interface receives the signal from the second portion of the interface; the first portion of the interface determines a cache command rate based on the known frequency, the frequency of the cache, and the signal; and the interface provides information indicating the cache command rate to the interconnect. | 06-25-2015 |
20150178230 | DETERMINING COMMAND RATE BASED ON DROPPED COMMANDS - In one or more embodiments, one or more systems, devices, methods, and/or processes described can send, via an interconnect, a rate master command to at least one of multiple processing nodes; determine that a message indicating a dropped command, associated with the rate master command, is received; determine that a count, associated with dropped commands, satisfies a threshold; and provide, to the processing nodes via the interconnect, a signal indicating a command rate, in response to determining that the count satisfies the threshold. Moreover, the count can be incremented in response to determining that the message is received. The at least one of multiple processing nodes can receive, via the interconnect, the signal indicating the command rate and can utilize the command rate in issuing speculative commands, via the interconnect. | 06-25-2015 |
20150178231 | DETERMINING COMMAND RATE BASED ON DROPPED COMMANDS - In one or more embodiments, one or more systems, devices, methods, and/or processes described can send, via an interconnect, a rate master command to at least one of multiple processing nodes; determine that a message indicating a dropped command, associated with the rate master command, is received; determine that a count, associated with dropped commands, satisfies a threshold; and provide, to the processing nodes via the interconnect, a signal indicating a command rate, in response to determining that the count satisfies the threshold. Moreover, the count can be incremented in response to determining that the message is received. The at least one of multiple processing nodes can receive, via the interconnect, the signal indicating the command rate and can utilize the command rate in issuing speculative commands, via the interconnect. | 06-25-2015 |
20150178238 | COMMAND RATE CONFIGURATION IN DATA PROCESSING SYSTEM - In one or more embodiments, one or more systems, devices, methods, and/or processes described can continually increase a command rate of an interconnect if one or more requests to lower the command rate are not received within one or more periods of time. In one example, the command rate can be set to a fastest level. In another example, the command rate can be incrementally increased over periods of time. If a request to lower the command rate is received, the command rate can be set to a reference level or can be decremented to one slower rate level. In one or more embodiments, the one or more requests to lower the command rate can be based on at least one of an issue rate of speculative commands and a number of overcommit failures, among others. | 06-25-2015 |
20150178239 | COMMAND RATE CONFIGURATION IN DATA PROCESSING SYSTEM - In one or more embodiments, one or more systems, devices, methods, and/or processes described can continually increase a command rate of an interconnect if one or more requests to lower the command rate are not received within one or more periods of time. In one example, the command rate can be set to a fastest level. In another example, the command rate can be incrementally increased over periods of time. If a request to lower the command rate is received, the command rate can be set to a reference level or can be decremented to one slower rate level. In one or more embodiments, the one or more requests to lower the command rate can be based on at least one of an issue rate of speculative commands and a number of overcommit failures, among others. | 06-25-2015 |
Patent application number | Description | Published |
20110022947 | SYSTEM AND METHOD FOR DYNAMIC REGENERATION OF PAGE FRAGMENTS - Disclosed herein are embodiments of a system and method for the provisioning of dynamically generated content. One embodiment can interface a content delivery system and a content management system at the fragment level. Depending upon how a page is organized, a fragment may refer to a block within the page, a portion of the page, or a content item presented on the page. When a content item is updated and published onto the content management system, one embodiment of the invention can operate to track dependencies of managed pages and invalidate/validate fragment(s) affected by the change(s) accordingly. The updated fragment(s) may then be dynamically assembled on-the-fly or on-demand. The updated fragment(s) may or may not be cached. In this way, changes made to a piece of content can be reflected in all pages which utilize this content almost simultaneously with the changes to the content itself. | 01-27-2011 |
20120303765 | SYSTEM USING CONTENT GENERATOR FOR DYNAMICALLY REGENERATING ONE OR MORE FRAGMENTS OF WEB PAGE BASED ON NOTIFICATION OF CONTENT CHANGE - Disclosed herein are embodiments of a system and method for the provisioning of dynamically generated content. One embodiment can interface a content delivery system and a content management system at the fragment level. Depending upon how a page is organized, a fragment may refer to a block within the page, a portion of the page, or a content item presented on the page. When a content item is updated and published onto the content management system, one embodiment of the invention can operate to track dependencies of managed pages and invalidate/validate fragment(s) affected by the change(s) accordingly. The updated fragment(s) may then be dynamically assembled on-the-fly or on-demand. The updated fragment(s) may or may not be cached. In this way, changes made to a piece of content can be reflected in all pages which utilize this content almost simultaneously with the changes to the content itself. | 11-29-2012 |
20130232227 | SYSTEM AND METHOD FOR FRAGMENT LEVEL DYNAMIC CONTENT REGENERATION - A system and method for provisioning dynamically generated content. One embodiment can interface a content delivery system and a content management system at the fragment level. Depending upon how a page is organized, a fragment may refer to a block within the page, a portion of the page, or a content item presented on the page. When a content item is updated and published onto the content management system, one embodiment can operate to track dependencies of managed pages and invalidate/validate fragment(s) affected by the change(s) accordingly. The updated fragment(s) may then be dynamically assembled on-the-fly or on-demand. The updated fragment(s) may or may not be cached. In this way, changes made to a piece of content can be reflected in all pages which utilize this content almost simultaneously with the changes to the content itself. | 09-05-2013 |
20140201615 | System and method for the dynamic provisioning of static content - Disclosed herein are embodiments of a system and method for the dynamic provisioning of static content. In one embodiment, information presented on a content delivery system can be refreshed based on information published on a content management system. One embodiment can interface the content delivery system and the content management system at the page level. More specifically, content dependencies across pages employing the same content or portion(s) thereof can be tracked in a timely, accurate manner. Upon receiving a notification of a change to the content or a portion thereof from the content management system, a content generation system may operate to determine, based on the dependencies, what pages are affected by the change and, based on the determination, dynamically regenerate any and all affected pages. The regenerated pages may then be stored and/or pushed to the web tier for delivery to end users. | 07-17-2014 |
20150095762 | SYSTEM AND METHOD FOR THE DYNAMIC PROVISIONING OF STATIC CONTENT - Disclosed herein are embodiments of a system and method for the dynamic provisioning of static content. In one embodiment, information presented on a content delivery system can be refreshed based on information published on a content management system. One embodiment can interface the content delivery system and the content management system at the page level. More specifically, content dependencies across pages employing the same content or portion(s) thereof can be tracked in a timely, accurate manner. Upon receiving a notification of a change to the content or a portion thereof from the content management system, a content generation system may operate to determine, based on the dependencies, what pages are affected by the change and, based on the determination, dynamically regenerate any and all affected pages. The regenerated pages may then be stored and/or pushed to the web tier for delivery to end users. | 04-02-2015 |
Patent application number | Description | Published |
20100094593 | APPARATUS TO PREDICT FAN WEAR-OUT AND IMPENDING FAILURE AND METHOD OF MANUFACTURING THE SAME - An apparatus for predicting fan wear-out and impending failure and a method of manufacturing the same. One embodiment provides for (1) a lookup table containing expected fan speeds at given duty cycles; and (2) a processor for comparing a measured fan speed at a given duty cycle with an expected fan speed at the given duty cycle, the processor generating a predicted fan wear-out and impending failure. | 04-15-2010 |
20100103710 | LLC CONVERTER SYNCHRONOUS FET CONTROLLER AND METHOD OF OPERATION THEREOF - A method for operating a power controller is provided. The method includes activating a rectifying FET upon a detection of an activation body diode conduction current occurring in the rectifying FET. The method generates an activation signal for a corresponding primary FET. The method further includes deactivating the corresponding rectifying FET upon a reception of a deactivation signal. The method further includes then deactivating the corresponding primary FET after delaying the deactivation signal, wherein the delay lessens a conduction time of a deactivation body current of the corresponding rectifying FET. The method further includes generating a deactivation signal and deactivating the corresponding rectifying FET upon a reception of the deactivation signal and deactivating the primary FET after delaying the deactivation signal. The delaying lessens a conduction time of a deactivation body current of the corresponding rectifying FET. | 04-29-2010 |
20100123450 | INTERLEAVED LLC POWER CONVERTERS AND METHOD OF MANUFACTURE THEREOF - A system is provided having a first LLC power converter and a second LLC power converter. The first LLC power converter comprises a first LLC voltage source. The second LLC power converter also comprises a second LLC voltage source. The first LLC power converter also comprises a first resonant inductor, a first magnetic inductor, and a first resonant capacitor coupled to the first voltage source of the first LLC power converter. The second LLC power converter comprises a second resonant inductor, a second magnetic inductor, and a second resonant capacitor coupled to the second voltage source of the second LLC power converter. The first LLC power converter and the second LLC power converter are both magnetically couplable to a common load. A resonance of the first LLC power converter substantially matches a resonance of the second LLC power converter. | 05-20-2010 |
20120127762 | LLC CONVERTER ACTIVE SNUBBER CIRCUIT AND METHOD OF OPERATION THEREOF - An active snubber circuit for a power converter, a method of operating the same and an inductor inductor capacitor converter incorporating the circuit or the method. In one embodiment, the circuit includes: (1) a series-coupled first capacitor and diode associated with a secondary-side switch in the power converter and coupled to an output thereof and (2) an active snubber circuit switch coupled in parallel with the diode and configured to receive a control signal that closes the active snubber circuit switch during at least a portion of a time during which the secondary-side switch is open. | 05-24-2012 |
20120153730 | INTERLEAVED LLC CONVERTER EMPLOYING ACTIVE BALANCING - An interleaved LLC converter, a method of operating an LLC converter and a power supply are disclosed herein. In one embodiment, the LLC converter includes: (1) a plurality of LLC power channels, with each of the plurality having an independent power input and (2) a compensation controller configured to actively adjust the independent power inputs to substantially match output voltage and current levels for a given load condition and a common operating frequency of the plurality of LLC power channels. | 06-21-2012 |
20120195081 | SYSTEM AND METHOD FOR INCREASING DC POWER SYSTEM EFFICIENCY WITHOUT REQUIRING A LARGE BATTERY RESERVE - A system for increasing parallel rectifier DC power system efficiency. In one embodiment, the system includes: (1) a controller configured to sense and classify a load magnitude change into groups including large load transients and moderate load transients and (2) at least one rectifier coupled to the controller and configured to transition from a stand-by mode to an active mode upon an occurrence of one of a large load transient and a moderate load transient. | 08-02-2012 |
20120294052 | MONOTONIC PRE-BIAS START-UP OF A DC-DC CONVERTER - The power conversion module includes a power converter coupled to provide a DC output voltage from an input voltage source. The power converter may have primary and secondary stages, and the power converter may also provide a DC output voltage that is electrically isolated from the input voltage source. Additionally, the power conversion module also includes a voltage controller configured to measure a pre-bias value of the output voltage prior to start-up of the power converter and provide a start-up control signal, wherein the start-up control signal corresponds to an initial output voltage that is greater than the pre-bias value of the output voltage. The initial output voltage includes a start-up voltage margin above the pre-bias value and is maintained for a margin hold time. A method of operating a power conversion module is also provided. | 11-22-2012 |
20130003430 | OPTIMIZATION OF A POWER CONVERTER EMPLOYING AN LLC CONVERTER - A power converter includes an input stage connected to receive an input signal and to provide an intermediate DC voltage, and an output stage having an LLC converter connected to receive the intermediate DC voltage and to provide a DC output voltage. Additionally, the power converter includes a control unit connected to the input and output stages to regulate the DC output voltage and set a target operating parameter of the LLC converter based on controlling the intermediate DC voltage. A method of operating a power converter is also provided. | 01-03-2013 |
20130003431 | MULTILEVEL POWER CONVERTER AND METHODS OF MANUFACTURING AND OPERATION THEREOF - A power converter includes an input stage connected to receive a three phase AC input voltage and to provide multiple DC voltage levels. The power converter also includes an output stage of a plurality of interleaved LLC converters having series-connected inputs coupled to the multiple DC voltage levels and parallel-connected outputs to provide a DC output voltage. Additionally, the power converter includes a balancing circuit interconnected to the input and output stages to provide substantially balanced output currents from the plurality of interleaved LLC converters for the DC output voltage. Methods of manufacturing and operating a power converter are also provided. | 01-03-2013 |
20130307339 | OPTIMIZED CONTROL OF A POWER CONVERTER IN RESPONSE TO LOAD CONDITIONS - A power converter and a method of operating the same is described, for use in a power conversion system that is capable of receiving power from various sources, including renewable sources, for delivering power to a load. Power type detection circuitry is provided for identifying the type of power source at the input of each power detector, based on attributes of the time-varying power received. The power converter is constructed of a boost stage followed by a galvanically isolated DC-DC converter stage. If a renewable input power source is detected, the boost stage is controlled to operate at a maximum power point, and the DC-DC converter stage is operated in an open loop manner when load exceeds available power at input. The load falls below available input power, the boost stage is controlled to regulate its output voltage and DC-DC converter stage is also placed under closed loop control. If the AC grid is detected as the input power source, the boost stage is controlled to attain maximum power factor, and the DC-DC converter stage is placed under feedback control of the output voltage. | 11-21-2013 |
20130307340 | POWER CONVERTER OPERABLE FROM VARIOUS POWER SOURCES - A power converter and method of operating the same for use in a power conversion system capable of receiving power from various sources, including renewable sources, for application to a load. Power type detection circuitry is provided for identifying the type of power source at the input of each power detector, based on attributes of the time-varying power received. The power converter is constructed of a boost stage followed by a galvanically isolated DC-DC converter stage. If a renewable input power source is detected, the boost stage is controlled to operate at a maximum power point, and the DC-DC converter stage is operated in an open loop manner. If the AC grid is detected as the input power source, the boost stage is controlled to attain maximum power factor, and the DC-DC converter stage is placed under feedback control of the output voltage. Operating modes are also switched in response to low load demand. | 11-21-2013 |
20130308356 | INPUT RELAY ARCHITECTURE FOR RECTIFYING POWER CONVERTERS AND SUITABLE FOR AC OR DC SOURCE POWER - Power converter circuitry for converting power from a power source of any one of a number of power source types, and in which arcing at relays in the event of a shutdown is avoided. A shunt circuit is provided in inrush and protection circuitry of the power converter, the circuit including a power field-effect transistor and optionally a series-connected relay. The shunt circuit is controlled to divert current from the main relay in the event of a rectifier fault, allowing the main relay to be opened under reduced or zero current. The field-effect transistor of the shunt circuit can then be safely opened, allowing its series relay to be opened under zero current conditions. | 11-21-2013 |
20140036545 | LLC CONVERTER WITH DYNAMIC GAIN TRANSFORMATION FOR WIDE INPUT AND OUTPUT RANGE - A resonant power converter system includes an output load and a rectifier stage that provides a DC output voltage to the output load from an AC intermediate voltage. The resonant power converter system also includes a resonant inverter stage that provides the AC intermediate voltage from a DC input voltage, wherein an inverter gain is controlled by switching between full-bridge and half-bridge topologies based on an external variable of the resonant power converter system. The resonant power converter system further includes a controller that controls the resonant power converter system. Additionally, a method of operating a power converter includes rectifying an AC intermediate voltage to provide a DC output voltage and providing the AC intermediate voltage by inverting a DC input voltage, wherein an inversion gain of the AC intermediate voltage is controlled by switching between full-bridge and half-bridge inversion topologies based on an external variable. | 02-06-2014 |
20140062396 | METHODS AND SYSTEMS FOR CHARGING AN ENERGY STORAGE DEVICE - A system for use in supplying power to a power storage device. The system includes a charging device that has a plurality of power converters, each of the power converters having an output terminal configured to output current at a predetermined voltage. The system includes a power conduit configured to couple each of the terminals in series to deliver current from the plurality of power converters to the power storage device. The system includes a controller programmed to receive a power storage device voltage signal, determine a charging voltage level based on the power storage device voltage signal, and enable at least one of the plurality of power converters to supply current at the charging voltage level to the power storage device. | 03-06-2014 |
20140247540 | POWER DISTRIBUTION RACK BUS BAR ASSEMBLY AND METHOD OF ASSEMBLING THE SAME - A power distribution rack includes a chassis that defines a first slot and a second slot adjacent the first slot. The power distribution rack also includes a plurality of electronics modules including a first module coupled within the first slot and a second module coupled within the second slot. A central bus bar assembly is coupled to the chassis and includes an outer bus bar including a first flange, a second flange, and a first bus plate extending therebetween. The first and second flanges and the first bus plate define a first channel. The bus bar assembly further includes an inner bus bar coupled within the first channel. The inner bus bar includes a third flange, a fourth flange, and a second bus plate extending therebetween. The first and third flanges are coupled to the first module and the second and fourth flanges are coupled to the second module. | 09-04-2014 |