Class / Patent application number | Description | Number of patent applications / Date published |
336005000 | POLYPHASE | 60 |
20080197952 | 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 transformer has a plurality of magnetic circuits and windings; said winding is formed by conducting wires continuously crossing through said magnetic circuits of each single-phase transformer in turn on a direction perpendicular to said magnetic circuit. In accordance with the present invention, the three-phase transformer has a simple structure and reduced volume. In addition, the heat radiation is good and then decreases the wastage. Moreover, the craft is simplified and the cost is reduced. The three-phase transformer may input and output larger electric current. | 08-21-2008 |
20090021336 | 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 applications. The inductor design makes it possible to use standard sources of sinusoidal currents for generating polyharmonic RMF, and significantly increase cos φ of the inductor. | 01-22-2009 |
20090058584 | 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 each other. The core also includes multiple slots. In addition to the core, the multi-winding device includes a primary winding positioned in at least two of the slots; and multiple spatially distributed secondary windings, wherein at least one of the secondary windings is positioned proximate the primary winding in at least one of the two slots. | 03-05-2009 |
20090140829 | 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 a polyphase winding is arranged, particularly for filtering the harmonics of a network current and the common-mode noise currents, wherein both the magnetic cores ( | 06-04-2009 |
20110156851 | Three-Phase High Frequency Transformer - A three-phase high frequency transformer has: a ferrite core formed from three solid-cylindrical cores and a ceiling plate and a bottom plate; and three sets of coils having primary coils of a predetermined inner diameter that are formed by bending flat wires plural times in width directions of the flat wires, and secondary coils that are formed such that an inner diameter is the same as the inner diameter of the primary coils by bending flat wires, that have a width that is different than a width of the flat wires of the primary coils, in width directions of the flat wires, and the flat wires that structure the secondary coils are interposed within intervals of the flat wires that structure the primary coils, and the three sets of coils are structured such that inner peripheries of the primary coils and the secondary coils coincide, and are disposed such that the respective solid-cylindrical cores are inserted in respective inner portions, and the primary coils and the secondary coils are Δ-connected or Y-connected. | 06-30-2011 |
20110187484 | Power Input Device with Current Pulse Multiplier Transformer to Reduce Harmonic Currents in Converter/Inverter Circuits and Devices, and Method of Making the Same - A power supply device comprising an advanced harmonic current quashing (AHQ) and current pulse multiplier (CPM) (AHQ/CPM) three-phase transformer having: a primary winding placed around a magnetic core and having three primary winding input leads to connect a three phase power supply; and a plurality of secondary windings placed around the magnetic core in a predetermined winding turns configuration to generate a plurality of three phase outputs, where each three phase output of the plurality of three phase outputs has a different phase angle from all other three phase outputs, with each unique phase angle associated with a three phase output of a corresponding secondary winding being determined based on the winding turns configuration utilized for the corresponding secondary winding. A variable frequency drive (VFD) having 3N converters/inverters coupled to the secondary windings outputs exhibit substantially reduced harmonic currents and a current pulse number of greater than 6N. | 08-04-2011 |
20110248808 | 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 ferromagnetic core. Each winding assembly includes a low voltage winding and a high voltage winding. In each winding assembly, an encasement comprised of an insulating resin encapsulates the low voltage and high voltage windings. The encasement includes a body and a pair of high voltage bushings and a pair of low voltage bushing. | 10-13-2011 |
20120068800 | 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 each case formed from at least one primary winding and secondary winding, and having at least one holding apparatus. A method for transformer production is also disclosed, wherein the holding apparatus is used to fix the at least one primary winding and secondary winding in each case and for this purpose it acts on each of the end faces of the at least one winding former. | 03-22-2012 |
20120086532 | MULTI-PHASE TRANSFORMER - A transformer for converting 3 phase AC to 9 phase AC power is provided. The transformer includes first, second and third coils, each coil having a plurality of serial windings coupled together to form a polygon. The transformer further includes first, second and third input terminals each linked to a respective winding of the first, second and third coils. The input terminals are configured to receive a first, second and third phases of input AC power and at least one selected input terminal of the first, second and third input terminals is adjustable to alter a number of turns of the respective winding of the corresponding first, second or third coil on either side of the selected input terminal. The transformer further includes first through ninth output terminals linkable to first through ninth output power lines. | 04-12-2012 |
20120086533 | MULTI-PHASE TRANSFORMER - A transformer for converting 3 phase AC to 9 phase AC power is provided. The transformer comprising a laminated core, first, second and third coils constructed on the laminated core, each coil including several windings. Cooling ducts are provided in each coil, wherein at least one cooling duct is disposed between the laminated core and an adjacent winding of the respective coil. The transformer further includes first, second and third input terminals each linked to the first, second and third coils, and configured to receive a first, second and third phases of input AC power and first through ninth output terminals linkable to first through ninth output power lines. | 04-12-2012 |
20120126923 | 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 underground distribution network for operation in air environment, semi-submerged or submerged. Such transformer comprises at least one high voltage winding ( | 05-24-2012 |
20120139678 | 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 closed or substantially closed periphery. The frames are arranged to form at least three legs. A low voltage winding is formed around each leg and a high voltage winding is formed around each low voltage winding. Each high voltage winding includes a plurality of serially-connected disc windings. Each of the disc windings is formed of alternating concentric layers of a conductor strip and an insulation strip, wherein the conductor strip having a width to thickness ratio of greater than 10:1. A casing encapsulates each pair of high voltage and low voltage windings. The casing is formed using a mold at least partially formed by a winding device used to wind the high voltage and low voltage windings. | 06-07-2012 |
20120146753 | 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 and secondary winding loops are integrated into printed circuit boards which are then stacked over the posts in laminate fashion between the top and bottom plate. | 06-14-2012 |
20120212311 | 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 affixed to the printed circuit board, and first and second switching circuits affixed to the printed circuit board. Each of the first and second switching circuits are electrically coupled to a respective solder tab of the two-phase coupled inductor affixed to the printed circuit board. | 08-23-2012 |
20130021126 | 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 yoke in contact with the lower end, wherein at least yokes comprises two parallel sub-yokes and a yoke connector connecting the two parallel sub-yokes, at least one primary winding on at least one of the columns configured to produce alternating magnetic flux in a closed magnetic circuit defined by the columns and the yokes, at least one secondary winding on at least one of the columns, and at least one control winding on the yoke connector, wherein the at least one control winding is configured to produce direct magnetic flux in a closed magnetic circuit defined by the yokes and the respective yoke connector, wherein the respective yoke connector is in a magnetically symmetrical position. | 01-24-2013 |
20130106546 | INTEGRAL MOLD FOR A TRANSFORMER HAVING A NON-LINEAR CORE | 05-02-2013 |
20130113587 | 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 three-phase transformer (Tra) provided with three coils ( | 05-09-2013 |
20130141199 | 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 least one phase winding split into two sub-windings, said two sub-windings are wound around the core and adapted to function as a single phase of a transformer wherein the core is fabricated from two C and two T ferrite or magnetic sections and adapted to cooperate with each other to form a CCTT shaped integrated magnetic structure. | 06-06-2013 |
20130141200 | INTEGRATED MAGNETIC DEVICE FOR LOW HARMONICS THREE-PHASE FRONT-END - An integrated magnetic device for low harmonics three-phase front-end ( | 06-06-2013 |
20130147588 | 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 yoke plates and a pair of outer leg plates. In an inner-most layer, the width of each yoke plate is less than the width of each outer leg plate. In each of the layers, the inner points of the outer leg plates are substantially in contact with the yoke plates. The cross-section of the inner leg and the outer legs may be rectangular or cruciform. | 06-13-2013 |
20130176092 | 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 winding modules. At least one cooling channel extending in the axial direction is provided between at least two radially adjacent winding modules. At least two axially adjacent winding segments are provided, and the winding modules are connected electrically in series by connecting conductors. At least one connecting conductor is led at least in sections through the cooling channel along the axial extension of the cooling channel. | 07-11-2013 |
20130187737 | Method For Making Magnetic Components With M-Phase Coupling, And Related Inductor Structures - An M phase coupled inductor includes a magnetic core including a first end magnetic element, a second end magnetic element, and M legs disposed between and connecting the first and second end magnetic elements. M is an integer greater than one. The coupled inductor further includes M windings, where each winding has a substantially rectangular cross section. Each one of the M windings is at least partially wound about a respective leg. | 07-25-2013 |
20130200967 | 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 an upper clamp and the lower clamp are connected with each other by several press screws. Low-voltage windings include a foil-wound or wire-wound cylindrical structure, while its high-voltage windings are wound with oxygen-free copper wires wrapped in an insulate paper and processed through vacuum pressure impregnation. Upper and lower padding blocks support and compress the high-voltage and low-voltage windings, so that the product is formed in a rigid stereo frame structure. | 08-08-2013 |
20130207761 | 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 power, regulate voltage, provide for parallel operation with capacitor banks, increase throughput, etc. A three-phase magnetic-bias-controlled reactor includes a magnetic system composed of vertical cores, horizontal yokes and magnetic shunts, as well as windings suitably placed on each core and windings wound around two adjacent cores, and a regulated DC voltage source. The magnetic system is spatial and includes two three-phase magnetic circuits located in parallel planes and installed between said magnetic circuits are additional sections of said yokes in the form of ferromagnetic inserts interconnecting said magnetic circuits through said horizontal yokes. | 08-15-2013 |
20130207762 | 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 advantages of a conventional toroidal core geometry are maintained. In particular, the current-compensated inductors according to the invention can be produced efficiently by means of automation without subsequent process steps for fitting shunt elements being required. | 08-15-2013 |
20130222099 | Method For Making Magnetic Components With M-Phase Coupling, And Related Inductor Structures - An M phase coupled inductor includes a magnetic core including a first end magnetic element, a second end magnetic element, and M legs disposed between and connecting the first and second end magnetic elements. M is an integer greater than one. The coupled inductor further includes M windings, where each winding has a substantially rectangular cross section. Each one of the M windings is at least partially wound about a respective leg. | 08-29-2013 |
20130229249 | Method For Making Magnetic Components With M-Phase Coupling, And Related Inductor Structures - An M phase coupled inductor includes a magnetic core including a first end magnetic element, a second end magnetic element, and M legs disposed between and connecting the first and second end magnetic elements. M is an integer greater than one. The coupled inductor further includes M windings, where each winding has a substantially rectangular cross section. Each one of the M windings is at least partially wound about a respective leg. | 09-05-2013 |
20130278368 | 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 one or more second busbars. All of the busbars of the pair of transductors are connected to the same winding. The or each first or second, busbar is connected to a single positive or negative, terminal ( | 10-24-2013 |
20130328652 | 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 cross-slitting a generally rectangular sheet or strip of metal. A resulting generally triangular segment is then wound upon a mold to form a first section of a core frame having a trapezoidal cross section. A second section of laminations is wound upon the first section of laminations to form a segment of a core frame having a rhombic cross section. The third section of laminations is wound upon the second section of laminations to form a segment of a core frame having a trapezoidal cross section. Each of the first, second, and third sections of laminations are offset from one another by a predetermined angle of offset. | 12-12-2013 |
20140015629 | 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 sets of grid-side input windings and four sets of valve-side output windings. The two sets of grid-side input windings are connected in parallel and axially arranged in a split manner. Among the four sets of valve-side output windings, two sets of valve-side output windings are radially arranged in a split manner corresponding to one set of grid-side input windings, and the other two sets of valve-side output windings are also radially arranged in a split manner corresponding to the other set of grid-side input windings. The two sets of valve-side output windings that are radially split and the other two sets of valve-side output windings that are radially split are axially arranged in a split manner. The grid-side input windings of the two 24-pulse rectifier transformers are phase-shifted with respect to each other. In this way, a uniform difference of 7.5° is produced in voltages of the eight sets of valve-side output windings of the two 24-pulse rectifier transformers, and the eight sets of valve-side output windings of the two 24-pulse rectifier transformers are correspondingly connected to rectifiers to form a uniform 48-pulse rectifier transformer, which not only reduces the harmonic current generated by the rectifier, but also improves the load capacity of the rectifier. | 01-16-2014 |
20140118099 | 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 for a fluid. The passageway protruding through the housing and the volume enclosed by the passageway is in fluidal connection to an outside of the housing. | 05-01-2014 |
20140167896 | COUPLED INDUCTOR - A coupled inductor includes a magnetic core, a first and a second coil. The magnetic core has a top and a bottom surface. The first coil, located in the magnetic core, has a first coil input end and a first coil output end, and is wound around a first axis in a first winding direction from the first coil input end and extended to the first coil output end. The second coil, located in the magnetic core, has a second coil input end and a second coil output end, and is wound around a second axis in a second winding direction, opposite to the first winding direction, from the second coil input end and extended to the second coil output end. An orthographic projection of the first coil on the top surface is at least partially overlapped with that of the second coil on the top surface. | 06-19-2014 |
20140253271 | 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 bi-toroidal circuit topology in which the magnetic flux passing through the primary and secondary coils are different. The turns ratio displays an “effective magnification” like an impedance transformed by a feedback loop. The result is a transformer which displays virtually no primary input current increase from no-load to on-load and an on-load power factor of zero for a purely resistive load. | 09-11-2014 |
20140292455 | 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 cores are connected with the plurality of magnetic leg cores, and are provided with isotropic magnetic bodies on at least one of the connection parts. The isotropic magnetic bodies are formed from an isotropic magnetic material. A power conversion apparatus includes either the reactor or the transformer. | 10-02-2014 |
20140354386 | 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 three generally rectangular magnetic core frames having a stair-stepped configuration extending along side portions of the frames. The frames are arranged to form a triangular prism structure such that side portions of locally adjacent frames are uniformly engaged to form three core legs over which coils of a three-phase magnetic induction device may be placed. | 12-04-2014 |
20150102881 | 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, second and third electric phase respectively, wherein the first, second and third legs are arranged in a star or delta configuration. | 04-16-2015 |
20160055956 | MULTI-PHASE COMMON MODE CHOKE - A common mode choke includes at least two groups of multi-phase coils wound on a magnetic core for balancing differential mode inductance between the phases. The multi-phase coils in each group are series connected and concentrically wound on a respective portion of the magnetic core. Each group of multi-phase coils is non-overlapping with each other group of multi-phase coils. | 02-25-2016 |
20160125998 | FILTER ASSEMBLY AND METHOD - An electronic filter assembly includes a magnetically conductive annular body extending around a center axis, a set of magnetically conductive prongs radially extending from the center axis toward the annular body, and conductive windings extending around the prongs. The conductive windings can be disposed around the prongs instead of the annular body to assist in conduction of common mode magnetic flux, to reduce impedance of the filter assembly, and/or to more evenly distribute temperature in the filter assembly. A method for forming an electronic filter assembly includes forming an electronic filter assembly having a magnetically conductive annular body extending around a center axis and a set of magnetically conductive prongs radially extending from the center axis toward the annular body. The annular body and the prongs can be formed by coupling plural layers of magnetically conductive bodies together. | 05-05-2016 |
20160125999 | Apparatus for Reducing a Magnetic Unidirectional Flux Component in the Core of a Transformer - An apparatus for reducing a magnetic unidirectional flux component in the core of a transformer, i.e., a three-phase transformer, includes a plurality of compensation windings that are magnetically coupled to the core of the transformer, wherein a controllable current source for feeding current into the compensation windings is arranged electrically in series with the compensation windings, specifically with the neutral point thereof, which is forming by the inputs of the compensation windings, and a neutral earthing transformer is electrically connected to the outputs of the compensation windings, where the current source electrically interconnects the neutral point of the compensation windings and the neutral point of the neutral earthing transformer. | 05-05-2016 |
20160148746 | INTEGRATED REACTORS WITH HIGH FREQUENCY OPTIMIZED HYBRID CORE CONSTRUCTIONS AND METHODS OF MANUFACTURE AND USE THEREOF - In some embodiments, an exemplary inventive device of the instant invention is a reactor which includes at least the following: a core, including: at least one leg, including: a first lamination, where the first lamination is made from a high permeability material, where the high permeability material has a magnetic permeability that is at least 1000 times greater than the permeability of air; a second lamination, where second lamination is made from the high permeability material; a bracket, where the bracket is configured to secure the first lamination and the second lamination in a spatial arrangement to have a space between each other; and a plurality of blocks made from a low permeability material, where the low permeability material has the magnetic permeability that is less than 100 times the permeability of air. | 05-26-2016 |
20160196916 | WOUND TRANSFORMER CORE | 07-07-2016 |
336010000 | ADJUSTABLE INDUCTOR | 4 |
20130009737 | Transformer - A polyphase transformer ( | 01-10-2013 |
20150102882 | ADJUSTABLE INTEGRATED COMBINED COMMON MODE AND DIFFERENTIAL MODE THREE PHASE INDUCTORS AND METHODS OF MANUFACTURE AND USE THEREOF - In some embodiments, the instant invention can provide an electrical system that at least includes the following: a three-phase inductor, having: a core, having: at least one first core segment, having a first shape; at least one second core segment, having a second shape; at least one third core segment, having a third shape; where the at least one first core segment, the at least one second core segment, and the at least one third core segment are configured to be: separate from each other and adjustable relative to each other; and where the core is configured so that differential mode inductance flux paths during the operation of the three-phase inductor depend on the first shape of the at least one first core segment, the second shape of the at least one second core segment, and the third shape of the at least one third core segment. | 04-16-2015 |
20150137924 | MAGNETICALLY SHIELDED THREE-PHASE ROTARY TRANSFORMER - A three-phase transformer including a primary portion and a secondary portion, the primary portion including a first body made of ferromagnetic material and primary coils, the secondary portion including a second body made of ferromagnetic material and secondary coils, the first body defining a first annular slot of axis A and a second annular slot of axis A. The primary coils include a first toroidal coil of axis A in the first slot, a second toroidal coil of axis A in the first slot, a third toroidal coil of axis A in the second slot, and a fourth toroidal coil of axis A in the second slot, the second coil and the third coil being connected in series. | 05-21-2015 |
20150145626 | MAGNETICALLY SHIELDED THREE PHASE ROTARY TRANSFORMER HAVING THREE MAGNETIC CORES - A three-phase transformer including a primary portion and a secondary portion, the primary portion including a first body made of ferromagnetic material and primary coils, the secondary portion including a second body made of ferromagnetic material and secondary coils, the first body defining a first annular slot of axis A and a second annular slot of axis A, the primary coils including a first toroidal coil of axis A in the first slot, a second toroidal coil of axis A in the second slot, and one or more third toroidal coils connected in series, the third coils being wound around one of the legs, and passing via slots in the leg. | 05-28-2015 |
20130009737 | Transformer - A polyphase transformer ( | 01-10-2013 |
20150102882 | ADJUSTABLE INTEGRATED COMBINED COMMON MODE AND DIFFERENTIAL MODE THREE PHASE INDUCTORS AND METHODS OF MANUFACTURE AND USE THEREOF - In some embodiments, the instant invention can provide an electrical system that at least includes the following: a three-phase inductor, having: a core, having: at least one first core segment, having a first shape; at least one second core segment, having a second shape; at least one third core segment, having a third shape; where the at least one first core segment, the at least one second core segment, and the at least one third core segment are configured to be: separate from each other and adjustable relative to each other; and where the core is configured so that differential mode inductance flux paths during the operation of the three-phase inductor depend on the first shape of the at least one first core segment, the second shape of the at least one second core segment, and the third shape of the at least one third core segment. | 04-16-2015 |
20150137924 | MAGNETICALLY SHIELDED THREE-PHASE ROTARY TRANSFORMER - A three-phase transformer including a primary portion and a secondary portion, the primary portion including a first body made of ferromagnetic material and primary coils, the secondary portion including a second body made of ferromagnetic material and secondary coils, the first body defining a first annular slot of axis A and a second annular slot of axis A. The primary coils include a first toroidal coil of axis A in the first slot, a second toroidal coil of axis A in the first slot, a third toroidal coil of axis A in the second slot, and a fourth toroidal coil of axis A in the second slot, the second coil and the third coil being connected in series. | 05-21-2015 |
20150145626 | MAGNETICALLY SHIELDED THREE PHASE ROTARY TRANSFORMER HAVING THREE MAGNETIC CORES - A three-phase transformer including a primary portion and a secondary portion, the primary portion including a first body made of ferromagnetic material and primary coils, the secondary portion including a second body made of ferromagnetic material and secondary coils, the first body defining a first annular slot of axis A and a second annular slot of axis A, the primary coils including a first toroidal coil of axis A in the first slot, a second toroidal coil of axis A in the second slot, and one or more third toroidal coils connected in series, the third coils being wound around one of the legs, and passing via slots in the leg. | 05-28-2015 |
336012000 | Interconnected windings | 11 |
20100060397 | INDUCTOR ARRAY WITH SHARED FLUX RETURN PATH FOR A FUEL CELL BOOST CONVERTER - An inductor array that includes a plurality of inductors where adjacent inductors share a core piece and thus a flux path to reduce the size and weight of the array. In one embodiment, the shared core pieces are formed as back-to-back U-shaped members defining an indented region at the center of the core piece. In another embodiment, a plurality of small block-shaped center core pieces in each inductor defines a plurality of gaps therebetween. | 03-11-2010 |
20100148898 | ZIGZAG AUTOTRANSFORMER APPARATUS AND METHODS - A zigzag autotransformer includes a zigzag transformer including first, second and third magnetic cores and an auxiliary winding set including respective pairs of series-connected windings on respective pairs of the first, second and third magnetic cores, the pairs of series-connected windings having respective first terminals connected to respective AC input phase terminals of the zigzag autotransformer and respective second terminals configured to provide respective AC output phases. | 06-17-2010 |
20100148899 | SYMMETRICAL AUTO TRANSFORMER DELTA TOPOLOGIES - Various embodiments of multi-phase transformers are disclosed. Exemplary transformer includes primary windings, secondary windings and third windings. Primary windings, secondary windings and third windings may include sub windings coupled to form junctions. Primary windings are coupled at ends to form a delta configurations. Secondary windings are coupled to primary windings. Third windings are coupled to primary windings and secondary windings. Secondary windings and the third windings are magnetically coupled to primary windings. The outputs at second ends of third windings are greater than the outputs at the second ends of secondary windings. In some embodiments, the outputs at adjacent second ends of the third windings are substantially equal. In some embodiments, the phase angle difference of outputs at adjacent second ends of third windings are substantially equal. In some embodiments, the phase angle difference of outputs at adjacent second ends of secondary windings are substantially equal. | 06-17-2010 |
20100148900 | SYMMETRICAL AUTO TRANSFORMER WYE TOPOLOGIES - Various embodiments of multi-phase transformers are disclosed. For example, a transformer includes primary windings, secondary windings and third windings. Primary windings, secondary windings and third windings may include sub windings coupled to form junctions. Primary windings are coupled at ends to form a delta configuration. Secondary windings are coupled to primary windings. Third windings are coupled to primary windings and secondary windings. Secondary windings and the third windings may be magnetically coupled to primary windings. The outputs at second ends of third windings are greater than the outputs at the second ends of secondary windings. In some embodiments, the outputs at adjacent second ends of the third windings are substantially equal. In other embodiments, a phase angle difference of outputs at adjacent second ends of third windings is substantially equal. In some embodiments, the phase angle difference of outputs at adjacent second ends of secondary windings is substantially equal. | 06-17-2010 |
20100219923 | ZIGZAG AUTOTRANSFORMER APPARATUS AND METHODS - A transformer includes a zigzag transformer comprising first, second and third magnetic cores. The transformer further includes an auxiliary winding set comprising respective pairs of series-connected windings on respective pairs of the first, second and third magnetic cores, the pairs of series-connected windings having respective first terminals connected to respective AC phases of the zigzag autotransformer and respective second terminals configured to provide respective AC output phases. | 09-02-2010 |
20100315187 | METHOD FOR POWERING A MAGNETIC COUPLER AND DEVICE FOR POWERING AN ELECTRIC DIPOLE - A method for powering a magnetic coupler, in which: a) each winding of a first magnetic elementary cell is powered such as to produce a magnetizing flux in a bar of the first cell which is joined with a second cell, the fundamental component of which has an angular offset x | 12-16-2010 |
20110109412 | Three phasecontinuous flux path transformer core and method of manufacture - In a three phase wound transformer core three frames are connected in triangular fashion, each frame being made of multiple rings wound in off-set fashion on a common axis. | 05-12-2011 |
20110115590 | HYBRID TRANSFORMER WITH TRANSFORMATION AND IMPROVED HARMONICS FUNCTIONS, UNBALANCED CURRENT, AND A POWER SUPPLY SYSTEM THEREOF - The present invention provides a hybrid transformer. In a transformer comprising a primary core and a secondary coil, the hybrid transformer includes a core with a 1st leg, a 2nd leg, and a 3rd leg; and a secondary coil with a 1st winding, a 2nd winding and a 3rd winding, which are wound zigzag on said 1st leg, said 2nd leg, and said 3rd leg. Two types of windings selected from the group consisting of said 1st winding, said 2nd winding and said 3rd winding are wound alternatively on said 1st leg, said 2nd leg, and said 3rd leg, respectively. However, the two types of windings wound on said 1st leg, said 2nd leg, and said 3rd leg, respectively, are wound in an overlapping manner around said core in the winding order. | 05-19-2011 |
20110148556 | POWER QUALITY IMPROVEMENT DEVICE AND POWER SUPPLY SYSTEM - The present invention relates to a power quality improvement device. The power quality improvement device is provided in the form of an autotransformer which comprises an iron core having first, second and third legs, and first, second and third coils which are wound in a zigzag fashion around said first, second and third legs. At least two coils selected from the group that includes said first, second and third coils, alternatively wound around each of said first, second and third legs, are over-lappingly wound around the core in a winding sequence. | 06-23-2011 |
20140104025 | High Frequency Transformer - A high frequency transformer with high conversion efficiency is provided. The high frequency transformer includes a first coil assembly | 04-17-2014 |
20140333399 | PSEUDO MECHANICAL ENERGY GENERATOR - An electrical generator including a ring shaped coil and a plurality of magnets attached to the ring shaped coil. The magnets may be operatively connected to a power supply. A controller may be connected to the power supply to turn the magnets on and off. The magnets may be turned on and off sequentially around the ring shaped coil to generate electricity. | 11-13-2014 |
336010000 | Adjustable inductor | 4 |
20130009737 | Transformer - A polyphase transformer ( | 01-10-2013 |
20150102882 | ADJUSTABLE INTEGRATED COMBINED COMMON MODE AND DIFFERENTIAL MODE THREE PHASE INDUCTORS AND METHODS OF MANUFACTURE AND USE THEREOF - In some embodiments, the instant invention can provide an electrical system that at least includes the following: a three-phase inductor, having: a core, having: at least one first core segment, having a first shape; at least one second core segment, having a second shape; at least one third core segment, having a third shape; where the at least one first core segment, the at least one second core segment, and the at least one third core segment are configured to be: separate from each other and adjustable relative to each other; and where the core is configured so that differential mode inductance flux paths during the operation of the three-phase inductor depend on the first shape of the at least one first core segment, the second shape of the at least one second core segment, and the third shape of the at least one third core segment. | 04-16-2015 |
20150137924 | MAGNETICALLY SHIELDED THREE-PHASE ROTARY TRANSFORMER - A three-phase transformer including a primary portion and a secondary portion, the primary portion including a first body made of ferromagnetic material and primary coils, the secondary portion including a second body made of ferromagnetic material and secondary coils, the first body defining a first annular slot of axis A and a second annular slot of axis A. The primary coils include a first toroidal coil of axis A in the first slot, a second toroidal coil of axis A in the first slot, a third toroidal coil of axis A in the second slot, and a fourth toroidal coil of axis A in the second slot, the second coil and the third coil being connected in series. | 05-21-2015 |
20150145626 | MAGNETICALLY SHIELDED THREE PHASE ROTARY TRANSFORMER HAVING THREE MAGNETIC CORES - A three-phase transformer including a primary portion and a secondary portion, the primary portion including a first body made of ferromagnetic material and primary coils, the secondary portion including a second body made of ferromagnetic material and secondary coils, the first body defining a first annular slot of axis A and a second annular slot of axis A, the primary coils including a first toroidal coil of axis A in the first slot, a second toroidal coil of axis A in the second slot, and one or more third toroidal coils connected in series, the third coils being wound around one of the legs, and passing via slots in the leg. | 05-28-2015 |
20130009737 | Transformer - A polyphase transformer ( | 01-10-2013 |
20150102882 | ADJUSTABLE INTEGRATED COMBINED COMMON MODE AND DIFFERENTIAL MODE THREE PHASE INDUCTORS AND METHODS OF MANUFACTURE AND USE THEREOF - In some embodiments, the instant invention can provide an electrical system that at least includes the following: a three-phase inductor, having: a core, having: at least one first core segment, having a first shape; at least one second core segment, having a second shape; at least one third core segment, having a third shape; where the at least one first core segment, the at least one second core segment, and the at least one third core segment are configured to be: separate from each other and adjustable relative to each other; and where the core is configured so that differential mode inductance flux paths during the operation of the three-phase inductor depend on the first shape of the at least one first core segment, the second shape of the at least one second core segment, and the third shape of the at least one third core segment. | 04-16-2015 |
20150137924 | MAGNETICALLY SHIELDED THREE-PHASE ROTARY TRANSFORMER - A three-phase transformer including a primary portion and a secondary portion, the primary portion including a first body made of ferromagnetic material and primary coils, the secondary portion including a second body made of ferromagnetic material and secondary coils, the first body defining a first annular slot of axis A and a second annular slot of axis A. The primary coils include a first toroidal coil of axis A in the first slot, a second toroidal coil of axis A in the first slot, a third toroidal coil of axis A in the second slot, and a fourth toroidal coil of axis A in the second slot, the second coil and the third coil being connected in series. | 05-21-2015 |
20150145626 | MAGNETICALLY SHIELDED THREE PHASE ROTARY TRANSFORMER HAVING THREE MAGNETIC CORES - A three-phase transformer including a primary portion and a secondary portion, the primary portion including a first body made of ferromagnetic material and primary coils, the secondary portion including a second body made of ferromagnetic material and secondary coils, the first body defining a first annular slot of axis A and a second annular slot of axis A, the primary coils including a first toroidal coil of axis A in the first slot, a second toroidal coil of axis A in the second slot, and one or more third toroidal coils connected in series, the third coils being wound around one of the legs, and passing via slots in the leg. | 05-28-2015 |