Patents
Sitemap › H01 - Basic electric elements › H01F - Magnets; Inductances; Transformers; Selection of materials for their magnetic properties › H01F 38 - Adaptations of transformers or inductances for specific applications or functions
Patents for H01F 38 - Adaptations of transformers or inductances for specific applications or functions (13,550)
12/1999
12/15/1999EP0964413A2 Engine igniting coil device
12/15/1999EP0964409A1 Bushing for high- and middlevoltage station
12/15/1999CN1238638A Apparatus using double focusing type fly-back transformer
12/14/1999US6002246 Flyback transformer
12/08/1999EP0717872B1 Multi-channel rotating transformer
12/08/1999CN2353025Y Large current mutual inductor
12/08/1999CN1237710A Multiloop detector and divided current converter for said detector
12/07/1999US5999430 Inverter control unit
12/02/1999WO1999062308A1 Apparatus for coupling power into a body of gas
12/02/1999WO1999050858A8 Separation type transformer core
12/02/1999CA2332860A1 Apparatus for coupling power into a body of gas
12/01/1999EP0961124A2 Multicircuit type instrument and split type current transformer for measuring various electric power quantities
12/01/1999EP0960425A1 Current transformer
12/01/1999CN2351817Y Ballast of slender-tube fluorescent lamp
11/1999
11/30/1999US5994788 Device for the contactless transfer of signals between two vehicle parts
11/30/1999US5993164 Method and apparatus for an electromagnetic propulsion system
11/25/1999DE19822560A1 Zündspule für Zündanlagen Ignition coil for ignition systems
11/24/1999EP0959481A2 Ignition coil for ignition systems
11/24/1999EP0742950B1 Device for mounting a flexible cable in a cylindrical sleeve, and high-voltage transformer comprising same
11/23/1999US5991178 VHV transformer/rectifier for surface mounting
11/17/1999EP0956571A1 Transformer with voltage regulating means
11/17/1999EP0922288A4 Charging coil core insert for electric toothbrushes
11/17/1999CN1235359A Current transformer for metal-enclosed gas-insulated high-voltage installation
11/16/1999US5986532 Ignition coil for an internal combustion engine
11/10/1999EP0955660A1 Electric circuit breaker for apparatus having a current overload and undervoltage function and a current overload sensor therefore
11/10/1999EP0954840A1 Device for displaying alpha numeric symbols and/or graphic symbols
11/10/1999CN1046389C High tension scanning transformer for a television receiver
11/09/1999US5982265 Current-detection coil for a current transformer
11/09/1999US5982263 Higher frequency switch mode transformer
11/09/1999CA2183509C Flyback transformer driving apparatus for video display appliances
11/04/1999DE19819585A1 Stabspule für Zündanlagen Bar coil for ignition systems
11/03/1999EP0953995A1 Ignition coil with rod-shaped core
11/03/1999EP0953225A1 Arrangement for the contactless transmission of electric energy and/or electric signals
11/03/1999CN2347246Y Ignition coil group
11/02/1999US5977856 Ignition coil device for internal-combustion engine
10/1999
10/28/1999WO1999055125A1 Dimming ballast and drive method for lamps using a frequency controlled, loosely-coupled transformer
10/27/1999EP0952731A2 Deflection current/high voltage integration type power supply
10/26/1999US5973584 High-voltage transformer for a television receiver
10/26/1999US5973583 Core assembly for coil units and method for producing the same
10/21/1999WO1999053684A2 A high voltage transformer
10/20/1999EP0951028A2 Engine igniting coil device
10/20/1999EP0951027A2 Engine igniting coil device
10/20/1999EP0951026A2 Engine igniting coil device
10/20/1999CN2344854Y Special-purpose switch power source for VCD
10/19/1999US5967128 Ignition apparatus for an internal combustion engine
10/14/1999WO1999039359A3 Electric ballast
10/13/1999EP0808460B1 Current-detection coil for a current transformer
10/13/1999CN2343659Y High-precise high-voltage current transformer
10/12/1999US5966008 Radio-interrogated, surface-wave technology current transformer for high-voltage systems
10/07/1999WO1999050861A1 Current transformer for supplying auxiliary power to an electronic overcurrent release
10/07/1999WO1999050858A1 Separation type transformer core
10/07/1999WO1999050780A1 Device for generating a rotating magnetic field in space for powering contactless electronic labels
10/06/1999EP0897542B1 Current sensor, in particular for low currents
10/06/1999EP0792511B1 Ignition coil arrangement for a multi-cylinder internal combustion engine
10/06/1999CN2342453Y Fixer structure without regulating gap
10/06/1999CN1231084A Wireless energy and data transfer for modular peripheral system
10/05/1999US5963118 Electromagnetic coil and manufacturing apparatus for the same
09/1999
09/30/1999WO1999049212A1 Rod coil for ignition systems
09/30/1999DE19909211A1 Electrical rod ignition coil for internal combustion engine
09/30/1999DE19813109A1 Rod ignition coil for supplying ignition plug of internal combustion engine with high voltage
09/29/1999CN2341255Y Special zero current mutual-inductor for magnet-assisting ground detection
09/29/1999CN2341254Y Assembling structure for silicon sheet set of ballast
09/29/1999CN2341253Y Heat radiator of electric welder
09/29/1999CN1230091A Inductance electronic ballast
09/23/1999WO1999022565A8 Planar magnetic component with transverse winding pattern
09/23/1999DE19912503A1 Current transformer with gas insulation
09/22/1999EP0943149A1 Electric supply system, corresponding terminal and mounting base
09/22/1999CN2339994Y 220 KV active optic-fiber current transformer
09/22/1999CN1229532A Bushing-type current transformer for air-insulated metal encapsulated middle voltage switching station
09/21/1999US5956073 Noise-limiting transformer apparatus and method for making
09/15/1999EP0748024B1 Direct-acting non-contact feeder
09/15/1999CN2338862Y Structure for fixing transformer
09/14/1999US5953225 Power flow control and power recovery with rotary transformers
09/14/1999US5952816 Compensation for power transfer systems using variable rotary transformer
09/14/1999US5950956 Ignition coil bank-winding method
09/14/1999US5950302 Method of making a stator apparatus having improved grounding arrangement
09/14/1999CA2184731C An electrically controllable inductor
09/14/1999CA2065050C Fluorescent-lamp leadless ballast with improved connector
09/09/1999DE19805628A1 Manufacture of ignition coils
09/08/1999CN1227956A Current transformer for gas-insulated switchgear
09/07/1999US5949319 Bar coil for ignition systems
09/07/1999US5949155 Non-contact electric power transmission device
09/01/1999CN2336364Y Electromagnetic unit for capacitance type voltage transformer
09/01/1999CN1227458A Motion vector detecting device
08/1999
08/31/1999US5945744 Arrangement for the contactless transmission of signals between a fixed and a rotary vehicle component
08/24/1999US5943204 Electronic trip unit with dedicated override current sensor
08/18/1999CN2334089Y Antiresonant grounding voltage transformer
08/18/1999CN2333474Y DC arc-welding generator
08/17/1999US5938143 Ignition coil bank-winding method
08/12/1999WO1999022565A3 Planar magnetic component with transverse winding pattern
08/12/1999DE19806366A1 System for inductive current transfer of alternating current or current pulses between two mutually isolated electrical equipment or equipment parts
08/11/1999EP0935264A1 Current transformer for a gas-insulated switch installation
08/11/1999CN2333075Y Electronic ballast of fluorescent lamp
08/05/1999WO1999039359A2 Electric ballast
08/05/1999CA2285358A1 Electric ballast
08/04/1999EP0933975A2 Ignition transformer
08/04/1999EP0933639A2 Insulating device for rogowski current measuring apparatus
08/04/1999EP0932925A1 Device for contactless transmission of electric energy
08/04/1999CN2331470Y Three-phase symmetrical moving iron-core type silicon arc-welding rectifier
08/04/1999CN1224942A Non-contact power transmitting device
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