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)
04/1999
04/14/1999CN2314454Y Insulating structure of iron core
04/14/1999CA2249827A1 Magnetic component assembly
04/08/1999WO1999017425A1 Insulation for a conductor
04/08/1999WO1999017318A1 Inductive component and method for making same
04/08/1999WO1999017317A1 Microelectronic component carrier and method of its manufacture
04/08/1999WO1999017316A2 Induction controlled voltage regulator
04/08/1999WO1999017315A2 A method and an arrangement for regulating a transformer/reactor, and a transformer/reactor
04/08/1999WO1999017314A2 A step-free induction controlled voltage regulator
04/08/1999WO1999017313A2 Magnetic tap changer
04/08/1999WO1999017312A2 Power transformer/reactor and a method of adapting a high voltage cable
04/08/1999WO1999017311A2 Transformer/reactor
04/08/1999WO1999017310A1 Electrical power devices cooling technique
04/08/1999WO1999017309A2 Transformer/reactor provided with spacing means
04/08/1999DE19844132A1 Magnetic core for a saturable reactor used in a multiple output computer switch regulator
04/08/1999DE19743860C1 System esp. charge part for accumulator for inductive transmission of electric power
04/08/1999CA2305426A1 Induction controlled voltage regulator
04/08/1999CA2305420A1 Magnetic tap changer
04/08/1999CA2305416A1 A method and an arrangement for regulating a transformer/reactor, and a transformer/reactor
04/08/1999CA2304537A1 Microelectronic component carrier and method of its manufacture
04/08/1999CA2304525A1 Insulation for a conductor
04/07/1999EP0907190A2 Inductive component and method of manufacturing same
04/07/1999EP0906651A2 Rotating electrical machine plants
04/07/1999CN2313275Y Low-pressure sealing connector for transformer
04/07/1999CN2313274Y Straight insulated lead device for transformer
04/07/1999CN2313273Y Oil-guide device for pressure-relief valve of transformer
04/07/1999CN1042867C Transformer coil and its manufacturing method
04/07/1999CN1042866C 线圈元件 Coil elements
04/06/1999US5892668 Noise-cut filter for power converter
04/01/1999WO1999016092A1 Method and device for producing bundles of sheet metal laminates for magnetic cores
04/01/1999WO1998056018A3 Planar inductive devices
03/1999
03/31/1999EP0905721A2 Lead-through device and lead-through assembly including it
03/31/1999EP0904628A1 Electric motor, in particular a motor-vehicle windscreen-wiper motor
03/31/1999CN2312512Y Direct air flow and dry type blower for cooling transformer
03/31/1999CN2312511Y Aluminium tube used for strong oil wind cooling apparatus for transformer
03/31/1999CN1212503A Noise-cut filter for power converter
03/30/1999US5889660 Isolated power supply for indicator light
03/30/1999US5889357 Piezoelectric oscillation device and surface acoustic wave device
03/30/1999US5889231 Transformer pad with molded sill and pedestal
03/25/1999WO1999014771A1 Transforming apparatus
03/24/1999EP0903011A1 Common mode filter and filter/connector combination
03/24/1999EP0903002A1 Rotating electrical machine comprising high-voltage winding and cast compound supporting the winding and method for manufacturing such machine
03/24/1999CN2311869Y Combination device for transformer switch
03/24/1999CN2311844Y Insulating sleeve for electric power equipment
03/24/1999CN2311843Y Winding iron core for toroidal transformer
03/24/1999CN2311842Y Outward magnetic toroidal source transformer
03/24/1999CN2311841Y Transformer with primary and secondary plug structure
03/24/1999CN1211856A Power amplifier
03/24/1999CN1211803A PC-card transformer creepage and clearance barrier
03/23/1999US5886610 Ultra flat magnetic device for electronic circuits
03/23/1999US5886507 Controlled ferroresonant transformer
03/23/1999US5886394 Device comprising an integrated coil
03/23/1999US5884990 Integrated circuit inductor
03/17/1999EP0902442A1 Coil with inductive and capacitive characteristics
03/17/1999EP0901711A1 A rotating asynchronous converter and a generator device
03/17/1999EP0901709A2 A device in the stator of a rotating electric machine and such a machine
03/17/1999EP0901706A2 A method and a device for reducing third harmonic phenomena in a rotating electric alternating current machine
03/17/1999EP0901705A1 Insulated conductor for high-voltage windings
03/17/1999EP0901704A1 High-voltage plants with electric motors
03/17/1999EP0901703A1 A turbo-generator plant
03/17/1999EP0901702A1 A hydro-generator plant
03/17/1999EP0901701A1 Synchronous compensator plant
03/17/1999EP0901700A2 Rotating electric machines with magnetic circuit for high voltage and method for manufacturing the same
03/17/1999CN2311064Y Outlet box for mine explosion-proof dry transformer
03/16/1999US5883558 Open superconductive magnet having shielding
03/16/1999CA2162977C Turn-to-turn grooved insulating tube and transformer including same
03/11/1999WO1999012174A1 Electrical component with a jacket and a connection area located in said jacket
03/11/1999DE19739560A1 Insulation arrangement for voltage-carrying conductors in vacuum
03/11/1999DE19738588A1 Elektrisches Bauelement mit einer Umhüllung und mit einem in der Umhüllung angeordneten Anschlußbereich Electrical component with a casing and with, disposed in the sheath terminal region
03/10/1999EP0901136A2 Inductance device with gap
03/10/1999CN2310374Y Lifting-lever type transformer terminal
03/10/1999CN2310373Y Silicon steel band combined wound single-phase transformer iron core
03/10/1999CN2310372Y High-flux radiator for electric power transformer
03/10/1999CN1210617A Converter transformer
03/10/1999CN1210346A Energy-saving transformer
03/10/1999CN1210345A Wire wound electronic component
03/09/1999US5880662 High self resonant frequency multilayer inductor and method for making same
03/03/1999EP0870353A4 Isolated electrical power supply
03/03/1999EP0824569B1 Flame resistant polyester resin composition
03/03/1999CN2309606Y Electronic transformer with meter
03/03/1999CN2309605Y OO shaped single-phase, three-phase and short-circuit preventing transformer core
03/03/1999CN1209687A Harmonic current attenuation device for electric motor
03/02/1999US5877669 Flyback transformer having a flexible coil winding structure and manufacturing process thereof
03/02/1999US5877668 Flyback transformer having a flexible coil winding structure and manufacturing process thereof
02/1999
02/25/1999WO1999009569A1 Controlled ferroresonant transformer
02/25/1999WO1999009568A1 High self resonant frequency multilayer inductor and method for making same
02/25/1999WO1999009567A1 Segmented transformer core
02/25/1999DE19835639A1 High frequency transformer with strip winding for television transmission
02/25/1999CA2300900A1 Segmented transformer core
02/24/1999EP0897338A2 Low profile magnetic component with planar winding structure having reduced conductor loss
02/24/1999CN1042273C Mutual-inductor current-conducting rod and method for making same
02/23/1999US5874882 Open and shielded superconductive magnet
02/23/1999US5874880 Shielded and open superconductive magnet
02/18/1999WO1999008295A1 Ferrite bead for cable installations
02/17/1999EP0896726A1 Magnetic core-coil assembly for spark ignition systems
02/17/1999CN2308151Y Cladding device for coil base
02/17/1999CN2308150Y High-voltage and low-voltage coil flowing device for back relaxation transformer
02/17/1999CN2308149Y All-constant power output energy-saving ore-smelting electric furnace transformer
02/17/1999CN2308148Y Spiral-plate forced oil water cooler for electric furnace transformer
02/17/1999CN1208497A Distributed gap electrical choke
02/17/1999CN1208322A Electronic device having electric wires and method of producing the same
1 ... 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 ... 434