| Patents for H01F 30 - Fixed transformers not covered by group (4,595) |
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| 03/27/2007 | US7196609 Transformer winding structure |
| 03/21/2007 | CN2881912Y Energy-saving pouring transformer |
| 03/21/2007 | CN1933058A Method for producing tri-splitting drive rectifier transformer |
| 03/21/2007 | CN1933057A Transformer structure |
| 03/21/2007 | CN1933049A Flat plate transformer |
| 03/20/2007 | US7193496 Magnetic element and power supply |
| 03/15/2007 | US20070056159 Electronic transformer/inductor devices and methods for making same |
| 03/14/2007 | CN2879371Y Start using voltage-reducing autotransformer |
| 03/14/2007 | CN1930644A 变压器 Transformer |
| 03/14/2007 | CN1929053A Classified insulating extra-high voltage auto-transformer |
| 03/14/2007 | CN1929052A Common mode filter |
| 03/14/2007 | CN1928665A Backlight device and liquid crystal display device incorporating the same |
| 03/13/2007 | CA2337014C Switching power supply circuit |
| 03/07/2007 | EP1759397A1 40 · phase-shifting autotransformer |
| 03/07/2007 | CN2877004Y Low voltage sleeve connecting structure of high capacity three-phase combined transformer |
| 03/06/2007 | US7187263 Printed circuit transformer |
| 03/06/2007 | US7186956 Fuser-controlling apparatus for generating a power synchronization signal and detecting power voltage |
| 02/28/2007 | CN2874736Y Scott transformer for changing three phase into two phase |
| 02/28/2007 | CN2874735Y Combined traction transformer for AT power supply mode electric railway |
| 02/28/2007 | CN2874734Y High power switch power transformer |
| 02/28/2007 | CN2874733Y 干式变压器 Dry-type transformers |
| 02/28/2007 | CN1921037A 反相转换器 Inverting converter |
| 02/28/2007 | CN1302493C Method of lowering impact induction potential of large volume autotransformer |
| 02/28/2007 | CN1302491C 3-limb amorphous metal cores for three-phase transformers |
| 02/27/2007 | US7183889 High-voltage transformer |
| 02/22/2007 | WO2007019869A1 The electricity-generating circuit |
| 02/21/2007 | CN2872562Y Efficient transformer |
| 02/15/2007 | US20070035374 Transformer |
| 02/14/2007 | CN2870110Y Star-shape ladder-shape wiring three-phase to tow-phase balancing transformer |
| 02/14/2007 | CN2870104Y Novel iron-core-roll three-phase transformer |
| 02/14/2007 | CN1300811C Transformer, power supply switching device and manufacturing method of transformer |
| 02/13/2007 | US7176779 Inductor arrangement |
| 02/08/2007 | WO2007014480A1 Multilevel converter and method of converting a supply voltage |
| 02/07/2007 | EP1749690A1 Transformer arrangement and multilevel converter |
| 01/31/2007 | EP1747566A1 Current transformer core and method for producing a current transformer core |
| 01/31/2007 | CN2864947Y Low-voltage star-delta switching for mining flame-proof type dry-type transformer |
| 01/31/2007 | CN2864946Y Transformer |
| 01/31/2007 | CN1905095A 变压器 Transformer |
| 01/31/2007 | CN1905084A Transmission line |
| 01/31/2007 | CN1904349A Internal combustion engine ignition device |
| 01/31/2007 | CN1297995C Construction of medium voltage power line data couplers |
| 01/24/2007 | CN2862288Y Multiple output balancing electric inductance |
| 01/24/2007 | CN1296946C High efficiency low leakage intermediate-frequency power transformer and its manufacturing method |
| 01/18/2007 | US20070013358 Multiphase transformer for a multiphase DC-DC converter |
| 01/17/2007 | EP1744332A1 Automatically manufactured high frequency translator |
| 01/17/2007 | CN2859765Y High-frequency power transformer of plating power source |
| 01/17/2007 | CN1295720C Voltage transformer arrangement |
| 01/16/2007 | US7164340 Transformer for switching power supply |
| 01/10/2007 | CN2857175Y Neutral auto-transformer having constant third side voltage |
| 01/10/2007 | CN2857172Y Transformer |
| 01/10/2007 | CN1894755A 变压器 Transformer |
| 01/09/2007 | US7161456 Systems and methods for driving large capacity AC motors |
| 01/09/2007 | US7161446 Noise filter |
| 01/03/2007 | CN2854781Y Iron-core separation transformer |
| 01/02/2007 | US7158003 Construction of medium voltage power line data couplers |
| 12/27/2006 | EP1735802A1 An inductive coupler |
| 12/27/2006 | CN2852346Y Transformer and lamp tube circuit utilizing the same |
| 12/21/2006 | WO2006133663A1 Support device for a toroidal core inductance mounting for an inductive component and inductive component |
| 12/21/2006 | US20060284717 Flyback transformer wire attach method to printed circuit board |
| 12/20/2006 | CN2849924Y 单相变压器 Single-phase transformers |
| 12/20/2006 | CN2849923Y Transformer structure with single cavity hollow cover |
| 12/13/2006 | CN2847487Y Rectifier transformer earthing plate |
| 12/13/2006 | CN1877760A Transformer for multi-lamp system |
| 12/12/2006 | US7148781 Landscape lighting transformer having increased loading features |
| 12/07/2006 | WO2006130820A1 Power transformer |
| 12/07/2006 | WO2006128340A1 Electronic transformer used in low-voltage lamps |
| 12/07/2006 | US20060273872 Power transformer |
| 12/07/2006 | DE202006013528U1 Transformer to act as mains transformer with high efficiency includes a ring transformer in a casing consisting of two shells |
| 11/30/2006 | WO2006126868A1 Prism-type electrical converter for the generation, transmission, distribution and supply of electric current, and production method thereof |
| 11/30/2006 | CA2605349A1 Prism-type electrical converter for the generation, transmission, distribution and supply of electric current, and production method thereof |
| 11/28/2006 | US7142085 Insulation and integrated heat sink for high frequency, low output voltage toroidal inductors and transformers |
| 11/28/2006 | US7142082 Electromagnetic device and high-voltage generating device and method of producing electromagnetic device |
| 11/23/2006 | WO2006105024A3 A transformer having a stacked core with a cruciform leg and a method of making the same |
| 11/22/2006 | CN2840286Y Three-phase no-load output balance structure for isolating transformer |
| 11/22/2006 | CN2840285Y Balanced transformer with auxiliary winding and cold cathode lamp tube driving device |
| 11/22/2006 | CN1286132C High voltage transformer and microwave oven provided with the same |
| 11/16/2006 | WO2006121036A1 Multilayer inductor |
| 11/16/2006 | WO2006120997A1 Cylindrical coil and cylindrical micro-motor using the same |
| 11/16/2006 | WO2006120957A1 Current balancing transformer |
| 11/15/2006 | CN1864236A 三相变压器 Three-phase transformer |
| 11/15/2006 | CN1863425A Fluorescent tube power supply circuit and transformer thereof |
| 11/15/2006 | CN1862722A Transformer structure |
| 11/15/2006 | CN1862721A Transformer structure |
| 11/14/2006 | US7135952 Electronic transformer/inductor devices and methods for making same |
| 11/08/2006 | CN2836199Y 变压器 Transformer |
| 10/31/2006 | US7130204 Switching power source apparatus |
| 10/31/2006 | US7129813 Wound-rotor transformer and power source device using said wound-rotor transformer |
| 10/25/2006 | EP1715570A1 Switching power supply apparatus and electronic device using the same |
| 10/25/2006 | CN2831362Y Single integrating transformer for driving multiple loads |
| 10/25/2006 | CN2831358Y Three-phase transformer core with 3-D direct gap |
| 10/25/2006 | CN2831357Y Three-phase transformer core with plane direct gap |
| 10/25/2006 | CN1851837A Inverter transformer |
| 10/19/2006 | DE102006014603A1 Magnetisches Element und Energieversorgung The magnetic element and power supply |
| 10/18/2006 | CN1848315A Ignition apparatus for an internal combustion engine |
| 10/18/2006 | CN1280849C High voltage transformer and discharge driving device |
| 10/12/2006 | WO2006105693A1 Converter transformers with self-coupling compensation and harmonic shielding |
| 10/12/2006 | US20060227230 Charge pump power supply with noise control |
| 10/11/2006 | EP1709725A1 Transformer based voltage supply |
| 10/11/2006 | CN2826642Y Three-phase electrostatic dust collection transformer |
| 10/11/2006 | CN2826640Y Transformer with safe creepage distance |