Patents
Sitemap › H01 - Basic electric elements › H01F - Magnets; Inductances; Transformers; Selection of materials for their magnetic properties › H01F 27 - Details of transformers or inductances, in general
Patents for H01F 27 - Details of transformers or inductances, in general (43,362)
09/1998
09/02/1998CN2290109Y Distribution transformer capable of avoiding fraudulent use of electricity
09/02/1998CN2290108Y Insulation cover for ring-type transformer coil
09/01/1998US5801611 Inductive device
09/01/1998US5801521 Planar magnetic element
09/01/1998US5801334 Conductor (turn) insulation system for coils in high voltage machines
09/01/1998US5800636 Dust core, iron powder therefor and method of making
08/1998
08/27/1998WO1998036849A1 Insulated metallic strip and method for producing same
08/27/1998DE19707702A1 Electronic/electrical device with planar-type inductance e.g. for CPU or computer circuit board
08/26/1998EP0860839A1 Bell transformer with or without switch
08/26/1998EP0860835A1 Enamelled wire with high resistance to partial discharges
08/26/1998EP0805721A4 Adhesively bonded laminate for use in an electrical apparatus such as a transformer, generator, or motor
08/26/1998CN2289287Y Metal box type expander and oil conservator
08/26/1998CN2289246Y Low measuring device for avoiding or indicating fraudulent use for distribution transformer
08/26/1998CN1191376A Multilayer electronic part and method for producing the same
08/25/1998US5798682 Synchronous cable coupling device of flyback transformer
08/20/1998WO1998036432A1 Current transformer
08/20/1998WO1998036431A1 Transposed cable for making windings in electric machines, manufacturing process of the same, and method of making a winding by said transposed cable
08/20/1998DE19706127A1 Stromwandler Current transformer
08/19/1998EP0859384A1 Transformer assembly and its use
08/19/1998EP0859383A2 Stick-type ignition coil having improved structure against crack or dielectric discharge
08/19/1998EP0859382A2 Gas insulated transformer
08/19/1998EP0859381A1 Transposed cable for making windings in electric machines, manufacturing process of the same, and method of making a winding by said transposed cable
08/19/1998EP0858668A1 Vhv transfo-rectifier for surface mounting
08/19/1998EP0858667A1 Choke
08/18/1998US5796325 Charging coil core insert for electric toothbrushes
08/18/1998US5796324 Surface mount coil assembly
08/18/1998US5796279 DC application circuit with suppressed DC magnetization
08/13/1998WO1998035367A1 Monolithic inductor and method of manufacturing same
08/13/1998DE19653527C1 Bushing, particularly for HV transformer with manufacturing method
08/13/1998CA2280735A1 Monolithic inductor and method of manufacturing same
08/12/1998EP0782761B1 Differential current protective switch with special core material
08/12/1998CN1190486A 高压隔离变压器模件 High-voltage isolation transformer modules
08/12/1998CN1190243A Wound-core-type transformer and apparatus for manufacture thereof
08/12/1998CN1190242A Eddy current shielding apparatus and three phase transformer
08/11/1998US5793273 Choke coil for suppressing common-mode noise and normal-mode noise
08/11/1998US5793272 Integrated circuit toroidal inductor
08/06/1998WO1998034250A1 A winding in an electric machine with stationary parts
08/06/1998WO1998034249A1 Transformer with voltage regulating means
08/06/1998WO1998034248A1 A winding provided with spacers
08/06/1998WO1998034247A1 A cable for electrical windings, and such a winding
08/06/1998WO1998034246A1 Power transformer/inductor
08/06/1998WO1998034245A1 Power transformer/inductor
08/06/1998WO1998034244A1 Winding in transformer or inductor
08/06/1998WO1998034243A1 A mechanically supported winding
08/06/1998WO1998034242A1 A transformer/reactor and a method for manufacturing a transformer/reactor
08/06/1998WO1998034241A1 Method and device in manufacturing a transformer/reactor
08/06/1998WO1998034240A1 Combined axial air-cooling of a transformer
08/06/1998WO1998034239A1 Horizontal air-cooling in a transformer
08/06/1998WO1998034238A1 Axial air-cooling of transformers
08/06/1998WO1998034237A1 Through-hole interconnect device with isolated wire-leads and component barriers
08/06/1998DE19705048A1 Heavy current HF transformer structure
08/06/1998DE19704232A1 Medium frequency (MF) coil with magnetic core for electronic power devices
08/06/1998CA2278236A1 Winding in transformer or inductor
08/06/1998CA2276620A1 Axial air-cooling of transformers
08/06/1998CA2276441A1 A mechanically supported winding
08/06/1998CA2276402A1 Power transformer/inductor
08/06/1998CA2276399A1 Power transformer/inductor
08/06/1998CA2276397A1 Method and device in manufacturing a transformer/reactor
08/06/1998CA2276360A1 A transformer/reactor and a method for manufacturing a transformer/reactor
08/06/1998CA2276352A1 A winding in an electric machine with stationary parts
08/06/1998CA2276349A1 A winding provided with spacers
08/06/1998CA2276348A1 A cable for electrical windings, and such a winding
08/05/1998EP0856856A2 High-voltage generating transformer
08/05/1998EP0856855A2 Printed coil with magnetic layer
08/05/1998CN1039444C Ignition coil for internal combustion engine
08/04/1998US5790387 Process for fixing a winding to an electronic circuit and a packaged electronic component produced therefrom
08/04/1998US5789712 Toroid holder
08/04/1998US5789703 Device for coupling focus unit of fly back transformer
08/04/1998US5788854 Methods for fabrication of thin film inductors, inductor networks, inductor/capactor filters, and integration with other passive and active devices, and the resultant devices
08/04/1998US5787571 Method of producing coil devices
08/04/1998US5787569 Encapsulated package for power magnetic devices and method of manufacture therefor
07/1998
07/30/1998DE19735748A1 Powder mould coating insulated electric/magnetic sheet-steel segment e.g. for electric machine stator
07/30/1998DE19703161A1 Winding wire e.g. for oil transformers
07/29/1998EP0855851A2 Discharge lamp unit
07/29/1998EP0855723A2 Transformer with controlled interwinding coupling and controlled leakage inductances and circuit using such transformer
07/29/1998CN2286920Y Transformer with new-type iron-core structure
07/29/1998CN1188972A High-flux radiator of power transformer
07/29/1998CN1188971A Suppressor case with rocking ferrite
07/23/1998DE19701269A1 Isolation and matching transformer with liquid cooling
07/22/1998EP0711449B1 Coil former and electric coil wound thereon
07/22/1998CN1188317A Process for manufacturing magnetic core made of nanocrystalline soft magnetic material
07/21/1998US5783982 Transformer with cap over windings
07/21/1998US5783775 Transformer door with corrosion resistant bottom strip
07/16/1998WO1998031033A1 Improved thermal cut-off device
07/15/1998EP0852845A1 Device for the absorption of electrical noise
07/14/1998US5781093 Planar transformer
07/14/1998US5781077 Reducing transformer interwinding capacitance
07/14/1998US5781071 Transformers and amplifiers
07/14/1998US5778863 Ignition coil for an internal combustion engine
07/09/1998WO1998029929A1 Device and method relating to protection of an object against over-currents comprising over-current reduction and current limitation
07/09/1998WO1998029885A1 Wire-wound inductors
07/09/1998WO1998029884A1 Continuous method of manufacturing wire wound inductors and wire wound inductors thereby
07/09/1998WO1998029881A1 Device comprising an integrated coil
07/09/1998CA2275619A1 Device and method relating to protection of an object against over-currents comprising over-current reduction and current limitation
07/08/1998EP0852428A2 Multilayered balance-to-unbalance signal transformer
07/08/1998CN2285929Y Transformer oilway insulation structure
07/08/1998CN1187014A Wire wound electronic component and method for manfacturing the same
07/07/1998US5777539 Inductor using multilayered printed circuit board for windings
07/07/1998US5777537 Quiet magnetic structures such as power transformers and reactors
07/02/1998WO1998028453A1 Process for the treatment of grain oriented silicon steel
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