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US20120146753 INTEGRATED MULTI-PHASE PLANAR TRANSFORMER  
An n-phase transformer includes a core structure having a polygonal top plate and a polygonal bottom plate and n winding posts disposed symmetrically between the top and bottom plate. The primary...
US20130147588 TRANSFORMER HAVING A STACKED CORE  
A transformer is provided having a stacked core with a pair of outer legs extending between a pair of yokes. The core is arranged in a plurality of layers. Each of the layers includes a pair of...
US20140266086 Coupled Inductors With Non-Uniform Winding Terminal Distributions  
A coupled inductor includes a ladder magnetic core including two opposing rails extending in a lengthwise direction and joined by a plurality of rungs. The coupled inductor further includes a...
US20120126923 SUBMERSIBLE DRY DISTRIBUTION TRANSFORMER  
It is described a single-phase or three-phase distribution electric transformer, of solid insulation, for use in aerial installation, in poles, in platforms or pedestals, or installation in...
US20120212311 Two-Phase Coupled Inductors Which Promote Improved Printed Circuit Board Layout  
Two-phase coupled inductors including a magnetic core, at least a first winding, and at least three solder tabs. Power supplies including a printed circuit board, a two-phase coupled inductor...
US20140253271 Bi-Toroidal Topology Transformer  
The present invention relates to electrical transformers and, in particular, to improvements to efficiency in energy conversion in electrical transformers. The improved transformer has a...
US20150235752 Compact Triangular Core Transformer  
A three-phase stacked triangular transformer core is provided. The transformer has three legs and six yoke parts therebetween, wherein the legs include stacked laminations. In a cross-sectional...
US20130200967 NON-ENCAPSULATED-WINDING STEREO WOUND-CORE DRY-TYPE AMORPHOUS ALLOY TRANSFORMER  
A non-encapsulated-winding stereo wound-core dry-type amorphous alloy transformer. The core of the transformer has a stereo structure. Three lower yokes are placed on a base of a lower clamp, and...
US20130021126 TRANSFORMER  
A transformer comprising columns, wherein each of the columns comprises a magnetic material, a length axis, an upper end, and a lower end, an upper yoke in contact with the upper end and a lower...
US20130009737 Transformer  
A polyphase transformer (1) comprising at least a first leg (2, 51) and a second leg (3, 52) of a magnetic material is described. The transformer comprises a single core with legs (2-4, 51-53) and...
US20140049246 POWER SUPPLY ARRANGEMENT WITH A TRANSFORMER HAVING A TRANSFORMER CORE WITH LEGS ARRANGED IN A POLYGON  
Power supply arrangement with first transformer (T1), having transformer core (K) with legs (K1) and yokes (K2) connecting these legs. Legs (K1) and yokes (K2) are arranged in geometric shape of a...
US20150179330 Reactor Device  
Provided is a device that reduces loss by means of a large-capacity, three-phase reactor device that eliminates high-frequency components arising in a power controller system used in solar power...
US20110248808 OUTDOOR DRY-TYPE TRANSFORMER  
A three-phase dry distribution transformer adapted for mounting outdoors on a pad or to a utility pole. The distribution transformer includes one or more winding assemblies mounted to a...
US20150162127 TRANSFORMER USED FOR STORING AND FILTERING  
A multi-phase stray field transformer used for storing energy and filtering currents with a number of 2*n+1 phases, wherein “n” represents a natural number, comprising a core (11, 12, 13, 14) with...
US20130049912 THREE-PHASE LINE REACTOR WITH SKEW YOKE CORE DESIGN  
A line reactor is presented having a skewed core structure with three horizontally non-coplanar vertical legs and top and bottom laminated, interleaved yoke structures with corresponding...
US20090257560 3D POLY-PHASE TRANSFORMER  
A three dimensional (3D) poly-phase transformer includes a plurality of transformer ribs mechanically and magnetically coupled such that each transformer rib forms a leg of a polygon. A plurality...
US20120139678 Non-Linear Transformer with Improved Construction and Method of Manufacturing the Same  
A three-phase non-linear transformer and a method of constructing the same. The non-linear transformer includes a non-linear ferromagnetic core having a plurality of frames, each of which has a...
US20120242261 MODULAR RECONFIGURABLE POLYPHASE POWER TRANSFORMER  
An AC transformer having a cylindrical core configurable for single or polyphase power input and/or output transformer applications. The transformer core structure is capable of being configured...
US20080197952 Three-phase Transformer  
The present invention relates to a transformer, and more especially to provides a three-phase transformer. The three-phase transformer includes three single-phase transformers; each single-phase...
US20130141199 Split-Winding Integrated Magnetic Structure  
In one embodiment the invention describes an integrated magnetic structure, for use in a transformer coupled buck and/or boost converter, comprising a core having at least one leg portion and at...
US20130328652 THREE-STEP CORE FOR A NON-LINEAR TRANSFORMER  
A three step non-linear transformer core is formed from three sections of laminations each having different widths and cross-sectional areas. A first section of laminations is formed by...
US20130207761 ELECTRICAL REACTOR WITH MAGNETIZATION  
The invention relates to electrical engineering and is particularly suitable for use with magnetic-bias-controlled reactors installed, e.g., in an electric network to compensate for reactive...
US20140015629 THREE-PHASE 48-PULSE RECTIFIER TRANSFORMER  
A three-phase 48-pulse rectifier transformer consists of two 24-pulse rectifier transformers phase-shifted through valve-side output windings. Each 24-pulse rectifier transformer comprises two...
US20140226387 TRANSMISSION OF ELECTRIC POWER  
A means is provided for the transmission of electric power that makes use of a coaxial cable and a special transformer for converting three-phase alternating current to single-phase current. The...
US20130219700 Amorphous Metal Continuous Flux Path Transformer and Method of Manufacture  
In a three phase transformer core, amorphous metal strips are wound into rings that are combined into frames and assembled to define cores with leg cross sections that have more than 4 sides to...
US20080094159 Filtering choke arrangement for a frequency converter  
Three-phase AC or two-phase DC choke arrangement of a frequency converter, in which is a magnetic core, in which are the phase-specific pillars of the AC choke arrangement or the branch-specific...
US20140118099 GAS-INSULATED DELTA TRANSFORMER  
An encapsulated delta transformer for medium to high voltages includes a hermetically sealed housing that encloses a volume, a delta shaped transformer arranged in the housing, and a passageway...
US20150263636 DISTRIBUTION TRANSFORMER  
Among other things, a distribution transformer and a technique for regulating voltage are provided for herein. The distribution transformer comprises at least three windings and at least two...
US20150102881 THREE-PHASE CHOKE  
The invention concerns a magnetic core of a three-phase choke comprising a first, second and third magnetic leg for receiving a first, second and third electric winding respectively of a first,...
US20060001516 Symmetrical phase shifting fork transformer  
A fork autotransformer has a symmetrically arranged annular array of legs manifesting each phase of a three phase transformer. Each leg has a core about which three layers of windings are wound....
US20130121043 HARMONIC CANCELLING INTERPHASE MAGNETIC DEVICE  
A harmonic cancelling interphase magnetic device (1) comprising a magnetic core of rectangular shape with three wound legs (14) and two non-wound legs (12), wherein the cross-section of said...
US20150262749 Inherently Balanced Zero-Sequence Blocking Inductor (ZSBI)  
A device and method of use for a zero-sequence blocking inductor (ZSBI) is disclosed which has inherently balanced resistive characteristics. This is achieved by a physical construction that...
US20120068800 POWER TRANSFORMER WITH AMORPHOUS CORE  
A transformer of dry design is disclosed having a core composed of amorphous material, which is sensitive to mechanical loads, having at least one winding former which surrounds the core and is in...
US20150170828 THREE-PHASE REACTOR  
The present application discloses a three-phase reactor, including: an upper yoke and a lower yoke, the upper yoke and the lower yoke containing a first material; and at least three first core...
US20130121050 INTEGRATED MAGNETIC DEVICE FOR LOW HARMONICS THREE-PHASE FRONT-END  
An integrated magnetic for a low harmonics three-phase bidirectional front-end and also for AC/DC and DC/AC power converters. Its use enables reduction of the harmonics of the currents absorbed or...
US20080007378 Toroidal Core Transformer  
A polyphase transformer (101) having a number of toroidap cores (102) arranged adjacent to one another in an axial direction is provided. The toroidal cores (102) support phase windings of...
US20090058584 THREE-PHASE MULTI-WINDING DEVICE  
A three-phase, multi-winding includes a core, the core including a hub and an outer shell around a perimeter of the hub. wherein the hub and the outer shell are in a fixed position with respect to...
US20130207762 CURRENT-COMPENSATED INDUCTOR WITH INCREASED LEAKAGE INDUCTANCE  
Current compensated inductors have a substantially closed core, which deviates from the toroidal core design such that increased leakage flux is achieved and, at the same time, the further...
US20130278368 RECTIFIER TRANSFORMER  
A rectifier transformer including at least one secondary with windings, one pair of magnetic transductors per winding, one of the transductors having one or more first busbars and the other having...
US20090140829 FILTERING CHOKE ARRANGEMENT  
A polyphase filtering choke arrangement of a power electronics appliance, more particularly of a frequency converter. which arrangement comprises two separate magnetic cores, around both of which...
US20090021336 INDUCTOR FOR THE EXCITATION OF POLYHARMONIC ROTATING MAGNETIC FIELDS  
An inductor for the excitation of polyharmonic rotating magnetic fields (RMF) for controlling the crystalline structure of continuous ingots and castings in metallurgy and other foundry...
US20140354386 THREE-PHASE MAGNETIC CORES FOR MAGNETIC INDUCTION DEVICES AND METHODS FOR MANUFACTURING THEM  
Three-phase magnetic cores for magnetic induction devices (e.g., transformers, coils, chokes), and methods for manufacturing them, are disclosed. The magnetic cores are generally constructed from...
US20070075811 Method of controlling effective impedance in a superconducting cable  
A method of controlling the effective impedance of a low-impedance high-temperature superconducting cable (“HTS cable”). Passive or active control circuitry is used to create a current in the...
US20130141200 INTEGRATED MAGNETIC DEVICE FOR LOW HARMONICS THREE-PHASE FRONT-END  
An integrated magnetic device for low harmonics three-phase front-end (1) comprising three magnetic sub-assemblies (30), wherein each magnetic sub-assembly (30) comprises a magnetic core without...
US20130176092 COOLED TRANSFORMER HAVING AT LEAST ONE STRIP WINDING  
A strip winding for a transformer includes a plurality of winding modules each having a strip conductor wound around a winding axis. A winding segment is formed by at least two radially adjacent...
US20100085139 High Current Amorphous Powder Core Inductor  
A magnetic component and a method of manufacturing the same. The method comprises the steps of providing at least one shaped-core fabricated from an amorphous powder material, coupling at least a...
US20150200052 INTEGRATED CIRCUIT CHIP INDUCTOR CONFIGURATION  
An integrated circuit chip including a first inductor; a second inductor having n1 turns and located a distance r1 from the first inductor; and a third inductor having n2 turns and located a...
US20140292455 Reactor, Transformer, and Power Conversion Apparatus Using Same  
Either a reactor or a transformer includes two facing yoke cores, and a plurality of magnetic leg cores around which coils are wound and gap adjustment means are disposed. The two facing yoke...
US20140268896 Reactor Apparatus and Power Converter Using Same  
A reactor apparatus 10 includes two yoke iron cores 11a, 11b disposed opposite each other, a plurality of magnetic leg iron cores 31 each of which has a coil 21 wound therearound and provided with...
US20130113587 MULTI-PHASE TRANSFORMER AND TRANSFORMATION SYSTEM  
Provided are a multi-phase transformer having an easier-producible structure, and a transformation system wherein a plurality of such transformers are serially connected. Disclosed is a...

Matches 1 - 50 out of 83 1 2 >