Patents for H01F 27 - Details of transformers or inductances, in general (43,362)
05/2002
05/02/2002EP1202297A2 High Q spiral inductor
05/02/2002EP1202295A2 Magnetic core including bias magnet and inductor component using the same
05/02/2002EP1200809A1 Device for measuring the contact pressure of a winding press element in an output transformer
05/01/2002CN2489440Y Hollow current-limiting reactor
05/01/2002CN2489439Y Copper bank iron core reactor
05/01/2002CN2489438Y Power transformer
04/2002
04/30/2002US6380836 Coil device and switching power supply apparatus using the same
04/30/2002US6380834 Planar magnetic assembly
04/25/2002WO2002033808A1 Stacked sheet metal laminate
04/25/2002WO2002033711A1 Inductor arrangement
04/25/2002US20020048872 Multilayer LC composite component and method for adjusting frequency characteristics of the same
04/25/2002US20020048630 Constructed to prevent corners from peeling and raising off a substrate; has a spiral configuration and includes straight lines and corners connected to the straight lines.
04/25/2002US20020048159 Surface-mountable impedance device
04/25/2002US20020047616 Transformer device, high voltage generating apparatus having the same, and lighting system having them
04/25/2002US20020047441 Rotating electrical machine with high-voltage winding and cast compound supporting the winding and method for manufacturing the same
04/25/2002US20020047440 Rotating electrical machine comprising high-voltage stator winding and spring-device supporting the winding and method for manufacturing such machine
04/25/2002US20020047439 High voltage ac machine winding with grounded neutral circuit
04/25/2002US20020047438 Rotating electric machines with magnetic circuit for high voltage and method for manufacturing the same
04/25/2002US20020047413 High voltage plants with electric motors
04/25/2002US20020047268 Rotating electrical machine plants
04/25/2002US20020046867 Insulated conductor for high-voltage windings and a method of manufacturing the same
04/25/2002US20020046746 Ignition coil for internal combustion engine
04/25/2002DE19932475C2 Induktives Bauelement Inductive component
04/25/2002DE10052569A1 Foil winding for rotary transformer includes electrical ribbon conductor curled on itself, insulating coating covering conductor and connectors, each making electrical contact with the end of the conductor
04/25/2002DE10051499A1 Plate lamella packet for electrical machines, has stacked plate lamellas and heat conducting layer mounted flat on plate lamella of thermal conductivity greater than that of plate lamellas
04/25/2002DE10051157A1 Transformator für hohe Betriebsfrequenz und Leistung Transformer for high operating frequency and power
04/25/2002DE10049751A1 Voltage supply arrangement for domestic appliances, especially washing machines and ovens, includes circuit board module equipped main terminal for domestic appliance
04/24/2002EP1199795A1 Lc oscillator
04/24/2002EP1199730A2 Transformer for high operating frequency and power
04/24/2002CN2488154Y Plug-type outlet terminal resin insulated air immersed transformer
04/24/2002CN1346499A Device for preventing explosions in electrical transformers
04/24/2002CN1346137A Battery for hand curred device electricity recharge
04/24/2002CN1083684C 印刷电路板 A printed circuit board
04/24/2002CN1083356C Electric drive system for vehicles
04/23/2002US6377157 Continuous multi-turn coils
04/23/2002US6377153 Transformer apparatus for use in insulated switching power supply apparatus with reduction of switching noise
04/23/2002US6377152 Bead inductor and method of manufacturing same
04/23/2002US6377150 Apparatus and method for facilitating heat dissipation in an electrical device
04/23/2002US6376912 Common mode choke coil of the conductor/insulator stacked type that uses a high machinability substrate and benzocyclobutene as the insulator
04/23/2002US6376775 Conductor for high-voltage windings and a rotating electric machine comprising a winding including the conductor
04/23/2002US6376772 Busbar bushing device and bar lead-in
04/23/2002US6374480 Method and apparatus for making a transformer core from amorphous metal ribbons
04/18/2002US20020044035 Electromagnetic actuator with molded connector
04/18/2002US20020044022 Oscillator and an oscillator characteristic adjustment method
04/17/2002EP1197974A2 Housing for an electronic component
04/17/2002EP1196968A1 Coaxial laser pulser with solid dielectrics
04/17/2002EP1196930A1 Sound-insulating device for an induction machine
04/17/2002EP0868233B1 Electromagnetic joining or welding of metal objects
04/17/2002CN2487085Y Magnetic control type controllable reactor
04/17/2002CN2487084Y Rolling iron core of three phase transformer
04/17/2002CN2487083Y Iron core of gas discharge lamp ballast
04/17/2002CN2487082Y Circular iron core winding
04/17/2002CN1083140C Device for filtering liquid medium and power electronics unit incorporation device of this kind
04/17/2002CN1083139C Choke coil
04/16/2002US6373736 Isolated converter
04/16/2002US6373368 Inductor and manufacturing method thereof
04/16/2002US6373367 Flyback transformer with core grounded
04/16/2002US6373366 Common mode filter
04/16/2002US6373203 Diode-split high-voltage transformer
04/16/2002US6372994 Wrapped film sealing system for electrical equipment
04/11/2002US20020041176 Battery apparatus for charging portable device
04/11/2002US20020041004 Monolithically integrable inductor
04/11/2002US20020040806 Electrical bushings with resin casting
04/11/2002DE10147992A1 Batterievorrichtung zum Laden einer tragbaren Einrichtung The battery apparatus for charging a portable device
04/11/2002DE10147129A1 Hochspannungstransformatorwicklung und Verfahren zur Herstellung High voltage transformer winding and method for producing
04/10/2002EP1195781A1 Method of manufacturing chip inductor
04/10/2002EP1194936A1 Induction devices with distributed air gaps
04/10/2002EP0927479B1 Pulse transformer for line interfaces operating according to the echo compensation principle
04/10/2002CN2485811Y Energy saving flat wire clip with inner thread
04/10/2002CN1344063A Multilayer LC compound assembly and method for regulating such assembly frequency
04/10/2002CN1343996A Inductor and method of mfg. same
04/10/2002CN1343994A Inductance componnet having permanent-magnet for applicating magnetic deflection outside of exciting coil
04/10/2002CN1343993A Magnetic core having effective magnetic polarization and magnetic device using same
04/10/2002CN1343992A On load tapping switching transformer
04/10/2002CN1343991A Magnetic core for digital user line modulator-demodulator transformer and its compsns.
04/10/2002CN1343990A Powder pressed iron core
04/10/2002CN1082707C 电磁噪声吸收器 Electromagnetic noise absorber
04/09/2002US6369685 Multi-layer planar inductance coil and a method for producing the same
04/09/2002US6369683 Variable inductor
04/09/2002US6369681 Mini transformer
04/09/2002US6369680 Transformer
04/09/2002US6368530 Method of forming cooling ducts in cast resin coils
04/04/2002WO2001084564A3 Bulk stamped amorphous metal magnetic component
04/04/2002US20020039062 Airgapped magnetic component
04/03/2002EP0873567B1 Distributed gap electrical choke
04/03/2002CN2484655Y Surface-adhesive reel terminal
04/03/2002CN2484624Y Moisture-adsorption device for transformer
04/03/2002CN1082233C Choke and making method of same
04/02/2002US6366180 Mains filter
03/2002
03/28/2002WO2002026009A1 Sleeved case design for adjustably increasing creepage distance
03/28/2002WO2002025677A2 Planar inductive element
03/28/2002WO2002025673A2 Method and apparatus for forming a magnetic component on a printed circuit board
03/28/2002WO2001091143A3 Slot core transformers
03/28/2002US20020037804 Compacts; low temperature sintering; barium, titanium, rare earth oxides
03/28/2002US20020036561 High-voltage transformer winding and method of making
03/28/2002US20020036560 Detachable transformer
03/28/2002US20020035776 Sleeved case design for adjustably increasing creepage distance
03/28/2002DE10042756A1 High efficiency coil comprises stacked spiral windings of conductor spiraling first inwardly then outwardly, with intervening insulation
03/27/2002EP1190425A1 Cooling fin with reinforcing ripples
03/27/2002CN2483813Y Shock-proof structure in inteal transformer