Patents for H01F 27 - Details of transformers or inductances, in general (43,362)
10/2002
10/30/2002EP1253389A1 Process for drying an active part, and apparatus for carrying out this process
10/30/2002EP0901709B1 Stator winding of a rotating electric machine and such a machine
10/30/2002CN2519393Y Improvement of electron element base seat
10/30/2002CN2519392Y Power transformer
10/30/2002CN1377049A Gas insulating dry reactor without core
10/30/2002CN1377048A Gas insulating reactor with T-shaped core
10/30/2002CN1377047A Gas insulating dry transformer
10/30/2002CN1093682C Magnetic core with continuously adjustable air gap
10/29/2002US6472970 Apparatus for attaching an electric coil to a printed circuit board
10/29/2002US6472969 Wire-wound common-mode choke coil
10/29/2002US6471787 Process for the production of oriented-grain electrical steel sheet with high magnetic characteristics
10/24/2002WO2002084679A1 Low output noise switched mode power supply with shieldless transformer
10/24/2002WO2002084678A2 Foil wound low profile l-t power processor
10/24/2002WO2002084677A1 Component with a winding support for assembly on a circuit support
10/24/2002US20020153987 An electronic part and a complex electronic device
10/24/2002US20020153986 Transformer for ignitor
10/24/2002US20020153985 Coil and terminal
10/24/2002US20020153872 Switching power-supply module
10/24/2002US20020153800 Device in the stator of a rotating electric machine and such a machine
10/24/2002DE10153887A1 Magnetkernbefestigungssystem Magnetic core mounting system
10/24/2002DE10119939A1 Magnet coil arrangement e.g. for hydraulic valve, has sealing element between connector and tubular metal part
10/24/2002DE10119106A1 Transformer for switch-mode power supply, has three cores formed as separate components and with air gaps between
10/24/2002DE10114182A1 Induktives Bauelement mit Drahtführungsschlitzen Inductive component with wire guide slots
10/23/2002CN2518200Y Special energy saving transformer of walking beam type pumping unit
10/23/2002CN2518198Y Combined transformer
10/23/2002CN2518197Y 组合式变压器 Combined Transformer
10/23/2002CN2518196Y Multi-stage compensating oil storage cabinet
10/23/2002CN2518195Y 组合式变压器 Combined Transformer
10/23/2002CN1376302A Earth cooled distribution transformer system and method
10/23/2002CN1376007A Electronic circuit unit
10/23/2002CN1093314C Choke coil
10/23/2002CN1093313C Choke coil
10/23/2002CN1093312C Choke coil
10/22/2002US6469608 Stress releasing member separated from insulating resin to allow the positioning member to move with the central core, thereby minimizing cracks which will occur in the insulating resin
10/22/2002US6469607 Stationary induction apparatus
10/22/2002US6469606 Coil component
10/22/2002US6469589 Noise filter with an outer wire fixing portion on the core case
10/22/2002US6469486 Flux equalized transformer circuit
10/17/2002WO2002082478A1 Transformer with a forced liquid cooling system
10/17/2002WO2002082200A1 Systems and methods for providing voltage regulation externally to a power transformer
10/17/2002WO2002059915A3 Wire core inductive devices having a biassing magnet and methods of making the same
10/17/2002US20020151114 Method of manufacturing chip inductor
10/17/2002US20020149461 Apparatus and method for PCB winding planar magnetic devices
10/17/2002US20020149460 Pin set of transformer coil and method for manufacturing the same
10/17/2002US20020149459 Foil wound low profile L-T power processor
10/17/2002US20020149453 Superconducting magnetic coil
10/17/2002US20020148995 Oxide magnetic material and coil part using the same
10/16/2002EP1249025A1 Coil and coil system to be integrated in a microelectronic circuit, and a microelectronic circuit
10/16/2002EP0970491B1 A controllable inductor
10/16/2002CN2517089Y Improved structure of iron core of energy-storage coil
10/16/2002CN2517088Y Transformer iron core
10/16/2002CN2517087Y Cooling device for transformer
10/16/2002CN2517086Y Gas insulation dry-type iron-core reactor
10/16/2002CN2517085Y Gas insulation dry-type transformer
10/16/2002CN2517084Y Gas insulation dry-type air reactor
10/16/2002CN2517083Y 变压器 Transformer
10/16/2002CN2517082Y Electronic ballast casing
10/16/2002CN1374755A Laminated dielectric resonator and laminated dielectric filter
10/15/2002US6466454 Component transformer
10/15/2002US6466120 Laminated inductor and method of producing the same
10/15/2002US6465097 Insulated wire
10/10/2002WO2002080204A1 Inductance element and case
10/10/2002WO2002065488A3 Method of manufacturing a stacked core for a magnetic induction device
10/10/2002WO2002049048A3 Multi-layer and user-configurable micro-printed circuit board
10/10/2002WO2001078091A9 Miniaturized ac/dc power supply and battery charger
10/10/2002US20020145500 Electrical conductor winding and a method of manufacturing an electrical conductor winding
10/10/2002US20020145499 Multi-terminal foil windings
10/10/2002US20020145498 Wire-winding structure and method for a transformer
10/10/2002US20020145497 Transformer with improved insulation
10/10/2002US20020145175 Inductance element and semiconductor device
10/09/2002EP1248297A2 Inductance element and semiconductor device
10/09/2002CN2515778Y Amorphous alloy underground distributing transformer
10/09/2002CN2515777Y Winding iron core for amorphous alloy transformer
10/09/2002CN2515776Y Iron core of triangular three-phase transformer
10/09/2002CN2515775Y Transformer cooler controlling device
10/09/2002CN1373482A Electromagnetic coil
10/08/2002US6462975 Foldable transformer
10/08/2002US6462638 Complex electronic component
10/08/2002US6462396 Inductance structure on semiconductor substrate
10/08/2002US6460244 Method for making a high current, low profile inductor
10/03/2002WO2002078022A1 High frequency power inductance element
10/03/2002WO2002078016A1 Inductive component with wire-guiding slots
10/03/2002US20020140539 Laminated impedance device
10/03/2002US20020140538 Method of winding coil and transformer and inverter liquid crystal display having coil wound using the same
10/03/2002US20020140537 Electrical steel sheet for low-noise transformer and low-noise transformer
10/03/2002US20020140536 Method and apparatus for detecting partial discharge in a voltage transformer
10/03/2002US20020140052 High frequency semiconductor device
10/02/2002EP1245032A1 Bulk amorphous metal magnetic component
10/02/2002EP0993008B1 A combination apparatus of distribution transformer and switch
10/02/2002CN2514473Y Improved structure of winding for low-voltage wire reel of transformer
10/02/2002CN2514471Y Cake-type winding structure
10/02/2002CN2514470Y Inductive ballast chip
10/02/2002CN2514469Y Composite structure magnetic core of functional material
10/02/2002CN1372279A Pouring cast winding without outlet fault and formation technology thereof
10/02/2002CN1372278A High-frequency power transformer with primary and secondary winding all cross structure and its making method
10/02/2002CN1372277A Surface installation type inductive element
10/02/2002CN1372276A Coil element and making method thereof
10/02/2002CN1372275A Chip inductive resistor
10/02/2002CN1372273A Multi-layer impedance
10/02/2002CN1372272A Coil closed moulded powder core and method for making same