Patents for H01F 27 - Details of transformers or inductances, in general (43,362)
04/2007
04/12/2007WO2007039939A1 Core having insulating sheet and electric device provided with such core
04/12/2007US20070080771 Method and apparatus for substantially reducing electrical earth displacement current flow generated by wound components
04/12/2007US20070080769 High current, multiple air gap, conduction cooled, stacked lamination inductor
04/12/2007DE10224186B4 Durch eine Flüssigkeit zu isolierter und/oder gekühlter Stufenschalter zum Zuschalten und Abschalten von Wicklungen eines Transformators By a liquid to be insulated and / or cooled step switch for engaging and disengaging of windings of a transformer
04/12/2007DE102006042585A1 Spulenanschlussanordnung für ein magnetisches Schaltschütz Coil terminal assembly for a magnetic contactor
04/12/2007DE102006009668B3 Method of drying a moisture-absorbing material in an air treatment unit for oil-isolated transformers, coils or switches controls heating to when no air flows into their expansion units
04/11/2007EP1772877A1 MF transformer with improved heat dissipation
04/11/2007CN2888710Y Neutral point protector for 110KV or 220KV transformer
04/11/2007CN2888709Y A zero sequence current transformer and electricity leakage protector
04/11/2007CN2888619Y Structure of balancing transformer
04/11/2007CN2888617Y Power distribution transformer which can be connected to two kinds of grids
04/11/2007CN2888616Y A vertical mounted porcelain sleeve for oil-dipped current mutual inducer
04/11/2007CN2888615Y Fully continuous transformer coil
04/11/2007CN2888614Y Epoxy-resin filled dry transformer coil
04/11/2007CN2888613Y Tightening structure for transformer cable
04/11/2007CN2888612Y Supporting frame for lower yoke core in transformer
04/11/2007CN2888611Y Electric power transformer
04/11/2007CN1945834A 半导体器件 Semiconductor devices
04/11/2007CN1310258C Controlled induction device and method of manufacturing the same
04/11/2007CN1310256C Multi-layer insulated wire and transformer made by using same
04/10/2007US7202768 Tunable inductor
04/10/2007US7202767 Ignition apparatus for an internal combustion engine
04/10/2007US7202766 Magnetic element
04/05/2007WO2007038309A2 Magnetic components
04/05/2007WO2007037756A1 Oil filled transformer with spacers and spacers for separating and supporting stacked windings
04/05/2007WO2007037417A1 Multilayered electric insulated wire and transformer using the same
04/05/2007WO2007037342A1 Mica tape, rotary electric coil making use of the same, and rotary electric equipment including the rotary electric coil
04/05/2007WO2007036956A1 Yoke structure for the lamination core of a static electrical machine, composed of unwelded cut-to­ measure members
04/05/2007US20070077458 wafers comprising oxides of iron, nickel, zinc, copper, manganese and bismuth, having high surface insulation resistance, less surface degradation and high mechanical strength
04/05/2007US20070075820 Core structure and manufacturing method of inductor
04/05/2007US20070075818 Inductive coupler
04/05/2007US20070075814 Ignition coil for an internal combustion engine
04/05/2007US20070075813 Self-shielding inductor
04/05/2007US20070075812 Transformer
04/05/2007DE19852771B4 Elektrische Ausgangsleiterplatte und mit dieser Leiterplatte ausgestattetes Gerät zur elektrischen Energieversorgung eines Zauns Electrical output board and equipped with this circuit board device for electrical power supply of a fence
04/05/2007DE10237255B4 Transformatorspule Transformer coil
04/05/2007DE102006024174A1 Spulenkomponente und elektronische Einrichtung Coil component and electronic device
04/05/2007DE102005050112A1 Process to diagnose the dielectric ageing of an electrical component by comparison of used condition with original condition
04/05/2007CA2589474A1 Mica tape, electrical rotating machine coil, and electrical rotating machine comprising the electrical rotating machine coil
04/04/2007EP1770666A2 Improved distributed capacitance resonant tag
04/04/2007CN2886773Y Novel outdoor(indoor) dry type combination mutual inductor
04/04/2007CN2886770Y Transformer specifically for wind power electricity-generation
04/04/2007CN2886769Y Magnetically shielded coil
04/04/2007CN2886768Y Horizontal phase-shifting transformer
04/04/2007CN2886767Y Novel coiled iron core overhead single-phase transformer
04/04/2007CN2886766Y Fully-enclosed energy-saving transformer
04/04/2007CN2886765Y A casing structure of ballast
04/04/2007CN1942982A Method and device for detecting the degree of pollution in an operational converter
04/04/2007CN1941230A Terminal fixing structure of transformer coil unit
04/04/2007CN1941229A Transformer
04/04/2007CN1941228A Inverting transformer
04/04/2007CN1941227A Surface installation inductor
04/04/2007CN1941226A Core for transformer
04/04/2007CN1941224A Manufacturing method for choke coil
04/04/2007CN1308973C Electric transformer dynamic combined voltage regulating on-load voltage regulating method and apparatus
04/03/2007US7199696 Transformer having a stacked core with a split leg and a method of making the same
04/03/2007US7199695 Multiphase voltage regulator having coupled inductors with reduced winding resistance
04/03/2007US7199694 Isolated dual-channel transformer
04/03/2007US7199693 Choke coil and electronic device using the same
04/03/2007US7199692 Noise suppressor
04/03/2007US7199443 Integration of filters using on-chip transformers for RF and wireless applications
04/03/2007CA2240769C Electromagnetic joining or welding of metal objects
03/2007
03/29/2007WO2007035155A1 A foil winding pulse transformer
03/29/2007WO2007033499A1 Mold-free resin-insulated coil windings
03/29/2007US20070069845 Ignition coil for a gasoline engine
03/29/2007US20070069844 Chip inductor and method for manufacturing the same
03/29/2007US20070069843 Thermal management apparatus and uses thereof
03/29/2007US20070069708 Differential mode inductor with a center tap
03/29/2007DE20221715U1 Bauelement mit einem Wicklungsträger zur Montage auf einem Schaltungsträger Component having a winding carrier for mounting on a circuit carrier
03/29/2007CA2622411A1 A foil winding pulse transformer
03/28/2007EP1766746A1 Method and equipment for the protection of power systems against geomagnetically induced currents
03/28/2007EP1206780B1 Method and device for insulating electro-technical components
03/28/2007CN2884467Y High frequency electronic transformer
03/28/2007CN2884466Y Unit structure of single-phase rail-way tractive transformer
03/28/2007CN2884465Y High power switch power-source transformer
03/28/2007CN2884464Y Active field magnetic shield dry type iron-core reactor
03/28/2007CN2884463Y Strut for insulating and propping low voltage coil of epoxy resin poured dry type transformer
03/28/2007CN2884462Y Iron yoke insulator for transformer
03/28/2007CN2884461Y Insulation structure between spirals of low voltage coil of high-temp. superconductor main transformer
03/28/2007CN2884460Y Frame of isolated transformer
03/28/2007CN2884459Y Positioner for fixing copper-row of low voltage foil coil of epoxy resin poured transformer
03/28/2007CN2884458Y Coil location and pressing device for dry-type transformer poured by epoxy resin
03/28/2007CN2884457Y Branch-off plate and branch-off protective sleeve for non-encapsulated dry-type transformer
03/28/2007CN2884456Y Winding structure used for rail-way high-voltage tractive transformer
03/28/2007CN2884455Y High voltage coil branch-off wire lead-out device for rectifier transformer
03/28/2007CN2884454Y High voltage coil electrostatic ring
03/28/2007CN2884453Y Non-crystalline alloy single-phase transformer
03/28/2007CN2884452Y Heat radiation plate of outside case of transformer
03/28/2007CN2884440Y Heavy current winding-wire
03/28/2007CN1938797A Low AC resistance foil winding for magnetic coils on gapped cores
03/28/2007CN1938794A Embedded toroidal transformers in ceramic substrates
03/28/2007CN1938793A Soft magnetic material and dust core
03/28/2007CN1937122A Production line system for making transformer iron-core piece
03/28/2007CN1937119A Digital voltage-regulation transformer and voltage-regulation method
03/28/2007CN1937118A Four-core-column three-phase transformer of realizing harmonic wave control
03/28/2007CN1937117A Transformer with wound single unit
03/28/2007CN1937116A On-line oil-filtering apparatus of loaded tap changer
03/28/2007CN1937115A 片式电感器 Chip Inductors
03/28/2007CN1307663C Transformer structure
03/28/2007CN1307662C Stack coil device and manufacturing method thereof