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| Number | Title | Issue Date |
| 8164406 | Transformer A transformer is provided. The transformer includes a first electrical conductor, a second electrical conductor, a circuit board and a core set. The first electrical conductor has a through hole and the second electrical conductor is electromagnetically coupled with... | 04/24/2012 |
| 8077003 | Coil component, transformer and switching power supply unit A coil component includes a first coil winding wound around a first axis, a second coil winding wound around a second axis and juxtaposed to the first coil winding, a connecting member for electrically connecting second terminals that are one end of the first coil w... | 12/13/2011 |
| 7920039 | Thermally enhanced magnetic transformer A planar transformer comprises a laminate substrate having an opening with metal traces wound thereabout forming a primary and a secondary winding, a core configured to fit inside the opening to enclose the laminate substrate. At least one heat sink fin is integrall... | 04/05/2011 |
| 7907039 | Compact dry transformer An compact dry transformer (1A) comprising a magnetic material core (2) and a coil assembly (3) assembled onto the core. The core comprises heat dissipating covers (4) with cooling fins (5) snug fitted over the core. The coil assem... | 03/15/2011 |
| 7800257 | Heat dissipater A heat dissipater within a linear motor system comprising a core, the core having a base and a projecting portion projecting from the base; the heat dissipater in thermal contact with the core; and a coil wrapped around both the core and the heat dissipater. ... | 09/21/2010 |
| 7750783 | Electronic instrument including a coil unit A coil unit includes a planar coil, a magnetic member that is provided under the planar coil, a magnetic flux leakage prevention member that is provided under the magnetic member, and a heat sink that is provided under the magnetic flux leakage prevention member. Th... | 07/06/2010 |
| 7714686 | Frequency converter with fan cooling The invention relates to an air-cooled frequency converter, especially for construction site equipment, such as internal and external vibrators which are operated at a higher frequency than the existing electricity supply, said frequency converter comprising a housi... | 05/11/2010 |
| 7710228 | Electrical inductor assembly An electrical inductor assembly comprises an inductor core having a circular shape, a wire guide that surrounds the inductor core and includes a plurality of slots, at least one of the slots forming a path winding around the inductor core, and at least one wire plac... | 05/04/2010 |
| 7663460 | Planar transformer and switching power supply A planar transformer comprises a primary coil board including a primary coil, a secondary coil board including a secondary coil, a heat sink integrally having a spacer portion, and a magnetic core assembly mounted to the primary coil board and the secondary coil boa... | 02/16/2010 |
| 7429907 | Power inductor with heat dissipating structure The present invention relates to a power inductor having a heat dissipating structure formed on the surface thereof, which comprises: at least a conducting wire; and a cladding, made of a magnetic material for wrapping the conductive wire, having the heat dissipatin... | 09/30/2008 |
| 7369024 | Compact dry transformer Compact dry transformer (1A) consisting of a magnetic material core (2) provided with a first heat sink consisting of covers (10) having cooling fins (11) on the outer surface thereof. The transformer also consists of a coil assembly (... | 05/06/2008 |
| 7345561 | Frequency converter with fan cooling The invention relates to an air-cooled frequency converter, especially for construction site equipment, such as internal and external vibrators which are operated at a higher frequency than the existing electricity supply, said frequency converter comprising a housi... | 03/18/2008 |
| 7301427 | Transformer having auxiliary winding coil for sensing magnetic flux balance and driving circuit using the same A transformer having auxiliary winding coils for sensing magnetic flux balance is disclosed. The transformer comprises a first winding part having a first channel, a second winding part having a second channel a third winding part having a third channel, a primary w... | 11/27/2007 |
| 7299967 | Method for manufacturing plate stacks, particularly coolers or cooler elements made up of plate stacks The invention relates to an innovative method for manufacturing plate stacks, particularly for manufacturing coolers or cooler elements or heat sinks at least one plate stack, with at least two plate-shaped elements made of metal, for example copper, and provided wi... | 11/27/2007 |
| 7295448 | Interleaved power converter A power converter architecture interleaves full bridge converters to alleviate thermal management problems in high current applications, and may, for example, double the output power capability while reducing parts count and costs. For example, one phase of a three ... | 11/13/2007 |
| 7289329 | Integration of planar transformer and/or planar inductor with power switches in power converter A power converter integrates at least one planar transformer comprising a multi-layer transformer substrate and/or at least one planar inductor comprising a multi-layer inductor substrate with a number of power semiconductor switches physically and thermally coupled... | 10/30/2007 |
| 7271696 | Two part transformer core, transformer and method of manufacture A toroidal transformer core topology having improved thermal and electrical properties has a two part core, one part concentrically disposed within the other, with the windings wound between the two. Less expensive materials and less material can be used to construc... | 09/18/2007 |
| 7268658 | Transformer having leakage inductance control structure A transformer having a leakage inductance control structure includes a primary coil, a secondary coil formed at a selected coil ratio relative to the primary coil to transform voltage and output electric power, and a leakage inductance control coil which is wound on... | 09/11/2007 |
| 7233225 | Planar type ferrite core A planar type ferrite core having a rectangular shaped flat part, a pair of outside legs projecting out from two ends of the flat part in a direction substantially perpendicular to a plane of the flat part, and a center leg positioned between the pair of outside leg... | 06/19/2007 |
| 7227754 | Fluid cooling for iron core and winding packs A power choke or transformer has an iron core, windings, and a cooling apparatus having a heat exchanger with a heat absorber and a cooling fluid duct operationally connected to the heat absorber, wherein the iron core is operationally connected to the heat absorber... | 06/05/2007 |
| 7212406 | Cooling of electrical components with split-flow closed-end devices A cooling system (11) is provided for electrical components (10, 90) in which passageways (21) are inserted in non-magnetic cores of the electrical components, and in which the passageways (21) provide both inflow and outflow of a cooling... | 05/01/2007 |
| 7209023 | Ignition coil with separating wall An ignition coil for an internal combustion engine minimizes the propagation of cracks in the encapsulate material surrounding the components of the ignition coil and provides a supplemental dielectric barrier. In one embodiment, the ignition coil comprises a housin... | 04/24/2007 |
| 7205875 | Hybrid air/magnetic core inductor An inductor includes an elongate magnetic core, a coil wrapped around the core and a spacer that separates the coil from the core to provide a coolant passage between the coil and the core. The coolant passage may include an air passage that extends substantially pa... | 04/17/2007 |
| 7167074 | Integrated planar flyback transformer Method and apparatus are provided for fabricating a planar transformer assembly for use in an implantable medical device. The planar transformer assembly includes a board, a first core, and a second core. The board has a first side, a second side, and an embedded wi... | 01/23/2007 |
| 7158001 | Choke coil and electronic device using the same A choke coil according to the invention is configured to include: a coil incorporated with terminals and/or intermediate tap, the coil configured of a metal plate being punched and folded; a magnetic material buried with the coil therein; and a radiator of a materia... | 01/02/2007 |
| 7140420 | Thermal management apparatus and uses thereof In one aspect, the present invention is a cooling assembly for an electrical component. The assembly includes a non-magnetic, thermally conducting spreader substrate, and at least one serpentine cooling tube disposed on and in thermal contact with the thermally cond... | 11/28/2006 |
| 7142081 | Multiple three-phase inductor with a common core An electrical inductor assembly has a plurality of three-phase inductors on a common core. Each inductor includes three coils wound around separate legs of the core. Core bridges extend across the legs to provide an inter-leg path for the magnetic flux produced by e... | 11/28/2006 |
| 7142082 | Electromagnetic device and high-voltage generating device and method of producing electromagnetic device An electromagnetic device and a high-voltage generating device which are thin with improved characteristics includes a magnetic core of a cylindrical form of a ferrite material having a high intrinsic resistance. A winding is provided by winding a flat rectangular w... | 11/28/2006 |
| 7132921 | Power supply module and electronic apparatus using the same To reduce pattern resistance including a secondary winding in a power supply module having a pair of secondary windings transformer-coupled with a primary winding. The pair of secondary windings coupled with a primary winding through a transformer is drawn out in bo... | 11/07/2006 |
| 7130197 | Heat spreader A heat spreader is disclosed. The heat spreader includes a body member, a first fin connected to the body member, a second fin connected to the body member, a third fin connected to the body member, and a fourth fin connected to the body member. The first and second... | 10/31/2006 |
| 7113065 | Modular inductor for use in power electronic circuits A modular inductor arrangement is provided in which a footprint of an enclosure for single or multiple phase inductors provides enhanced thermal transfer. The inductor coil may be wound about an axis generally parallel to a mounting surface of the package, so as to ... | 09/26/2006 |
| 7088210 | Electromagnet having spacer for facilitating cooling and associated cooling method An electromagnet and associated apparatus and method are provided. The electromagnet includes a core and at least one winding disposed circumferentially about the core such that the winding extends at least one revolution around the core. The electromagnet further i... | 08/08/2006 |
| 7078994 | Constant power and temperature coil A coil apparatus is described that incorporates two or more conductors, wound in parallel, following the same path, in intimate physical contact throughout the path but electrically isolated. The current applied to each of the coils can be selected independently. Th... | 07/18/2006 |
| 7064647 | Fabricated air core reactor A method and apparatus for an air core reactor including a plurality of straight members and a plurality of offset members, the plurality of straight and offset members are interconnected to form an orthogonal spiral having an air core therethrough. ... | 06/20/2006 |
| 7019996 | Power converter employing a planar transformer A power converter may employ a planar transformer to minimize winding conduction loss, and the switching devices of the power converter may be aligned in lines parallel to an edge of the planar transformer to minimize the termination leakage inductance. The windings... | 03/28/2006 |
| 7015783 | Coil component and method of manufacturing the same A coil component includes a coil 2 having a through-hole 1, a magnetic core encapsulating the coil, and a terminal 4. The magnetic core includes a top portion 11 disposed at an upper part of the coil, a bottom portion 12 disposed a... | 03/21/2006 |
| 6998950 | Method of making an electric inductor and inductor made by same An inductor design is disclosed which balances thermal requirements with magnetic and other requirements. The package is designed based upon the desired magnetic volume and the dimensions of a primary heat dissipation surface, which is preferably designed for conduc... | 02/14/2006 |
| 6989518 | Method of sealing a foil cap to a container A method of sealing a foil cap to the opening of a container by induction heating is provided. A heat pipe is used to transfer heat from an induction sealing head assembly. ... | 01/24/2006 |
| 6980074 | Low noise full integrated multilayers magnetic for power converters A multilayer structure in which all the magnetic elements have the windings edged in the inner layers and the magnetic core which surrounds the winding has the legs penetrating through the multilayer structure. The interconnection between the magnetic elements and t... | 12/27/2005 |
| 6980450 | High power density inverter and components thereof A compact high-power pure-sinewave inverter amenable to mass manufacturing techniques. Methods for increasing the power rating, power density and/or power conversion efficiency of a sinewave-modulated pulse-width-modulated (PWM) inverter having a either half-bridge ... | 12/27/2005 |
