Patents for H01F 30 - Fixed transformers not covered by group (4,595) |
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03/16/2011 | CN201765931U 220kV single-phase traction transformer for three-phase VX connection under AT power supply mode |
03/16/2011 | CN201765930U Combined power transformer |
03/16/2011 | CN201765929U Transformer of self-adaption light emitting diode (LED) drive power |
03/16/2011 | CN201765928U High isolation planar transformer |
03/10/2011 | WO2011026706A1 Electronic transformer |
03/09/2011 | CN101234450B Improved ring shaped high-efficiency direct current arc welding machine |
03/02/2011 | EP2289080A1 Optimized shielded transformer, in particular for carrying out dielectric tests |
03/02/2011 | CN201754367U 220 kV direct-reducing self-coupling shift rectifier transformer with saturation reactor therein |
03/02/2011 | CN201754366U Transformer structure |
03/02/2011 | CN101982861A Three-phase adapter |
03/02/2011 | CN101982860A Common box traction transformer with four low-voltage winding layers for AT power supply |
02/24/2011 | WO2011021156A1 Integrated multi-phase planar transformer |
02/24/2011 | CA2771426A1 Integrated multi-phase planar transformer |
02/23/2011 | EP2286423A1 Rotary power transformer for use in a high-voltage generator circuitry for inductively transmitting two or more independently controllable supply voltages to the power supply terminals of a load |
02/17/2011 | WO2011019712A1 Coupled inductor with improved leakage inductance control |
02/17/2011 | US20110037453 Detector device |
02/16/2011 | EP2284848A1 Transmitter |
02/16/2011 | EP2284847A1 Transformer, power converter using the transformer, lighting device, lamp for vehicle, and vehicle |
02/16/2011 | CN201749776U High-voltage isolation transformer |
02/16/2011 | CN201749775U Ultra-large capacitance splitting transformer |
02/16/2011 | CN201749774U Autotransformer starting reactor |
02/09/2011 | CN201742092U Three-phase equilibrium system synthesis power saver |
02/09/2011 | CN201741561U Power transformer with shell type structure |
02/09/2011 | CN201741560U Four-port gigabit network transformer |
02/09/2011 | CN201741559U Three-phase balancing autotransformer and intelligent power-saving system |
02/09/2011 | CN101640119B Underwater non-contact type separable transformer for electric energy transmission based on butterfly magnetic core |
02/09/2011 | CN101276683B Inductance component |
02/03/2011 | WO2011014344A1 Dry type pole-mounted transformer |
02/03/2011 | WO2011013394A1 Reactor |
02/03/2011 | CA2769458A1 Dry type pole-mounted transformer |
02/02/2011 | EP1399934B1 E-i or e-e transformer |
02/02/2011 | CN201732668U Ultrahigh voltage on-load voltage-regulating autotransformer |
02/02/2011 | CN101964248A Transformer |
02/02/2011 | CN101964247A Combining and traction transformer of two low-voltage winding layers for AT (Automatic Transmission) power supply |
02/02/2011 | CN101964246A Traction transformer series-connected in one box by two low voltage winding layers for AT (Auto-Transformer) power supply |
02/02/2011 | CN101964245A Underground totally-sealed combined transformer with lighting protection, overvoltage protection and overcurrent protection |
02/02/2011 | CN101599353B Integrated filter inductance transformer |
02/02/2011 | CN101572177B Network transformer as well as network module and electronic device using same |
02/01/2011 | US7880575 Coil bus for a transformer |
01/27/2011 | WO2011010491A1 Switching power supply module having built-in coil |
01/26/2011 | EP2277183A1 Modular ring-shaped core |
01/26/2011 | CN101960542A Electric transformer |
01/26/2011 | CN101958189A Multi-voltage dry type transformer in explosive gas environment |
01/26/2011 | CN101958178A Combined multi-function potential device for laboratories |
01/26/2011 | CN101471174B Isolation transformer |
01/20/2011 | WO2011007081A2 Device for high-voltage isolation of means for supplying power to electrical device connected to high-voltage potential |
01/20/2011 | CA2768087A1 Device for high-voltage isolation of means for supplying power to electrical device connected to high-voltage potential |
01/19/2011 | CN201717111U Transformer structure |
01/19/2011 | CN201717110U Intrinsically safe planar transformer |
01/19/2011 | CN201717109U Ultrathin transformer |
01/19/2011 | CN201717108U Self-coupling transformer for AT power supply of electrified railway |
01/12/2011 | EP2272073A1 Optimized transformer, in particular for carrying ou dielectric tests |
01/12/2011 | CN201708030U Novel dedicated small-capacity single-phase dry-type transformer for railways |
01/12/2011 | CN201708029U Special transformer for photovoltaic power generation |
01/12/2011 | CN101567635B Improved radio-frequency power supply for plasma discharge at atmospheric pressure |
01/05/2011 | CN201698248U Novel voltage stabilizer |
01/05/2011 | CN101939803A Transformer and transformer device |
01/05/2011 | CN101937763A Special self-coupling transformer for supplying power to wind power generation system |
01/05/2011 | CN101226821B High voltage transformer |
01/04/2011 | US7861403 Current transformer cores formed from magnetic iron-based alloy including final crystalline particles and method for producing same |
12/30/2010 | US20100328006 Power transfer device |
12/29/2010 | EP1269493B1 Transformer core |
12/29/2010 | CN101930836A Double-voltage oil immersed transformer |
12/28/2010 | US7859376 Zigzag autotransformer apparatus and methods |
12/22/2010 | EP2264882A1 Switching power supply unit |
12/22/2010 | CN201681711U Double-closed-loop core transformer |
12/22/2010 | CN101923953A Transformer for oil insulation test |
12/16/2010 | US20100315187 Method for powering a magnetic coupler and device for powering an electric dipole |
12/15/2010 | CN201673794U Toroidal transformer |
12/15/2010 | CN1797623B Transducing transformer in double loop, and monopolar fluorescent lamp of installing the transformer |
12/15/2010 | CN101170011B Single-phase or Vx connection traction transformer coiling structure for electric railway AT power supply mode |
12/08/2010 | EP2259275A2 High frequency transformer and multi-output constant current source with high frequency transformer |
12/08/2010 | CN201667281U Novel three-phase voltage transformation device |
12/08/2010 | CN201667036U Multifunctional voltage stabilizer |
12/08/2010 | CN1794554B Power source for plasma device |
12/08/2010 | CN101911223A Power transfer device |
12/08/2010 | CN101908826A Three-phase voltage changer |
12/08/2010 | CN101908411A Transformer structure |
12/07/2010 | US7847535 Method and device for supply to a magnetic coupler |
12/02/2010 | US20100301833 Load sensing high efficiency transformer assembly |
12/01/2010 | CN201663044U Resin casting dry type autotransformer used for reactive power compensation |
12/01/2010 | CN201663036U Magnetic element |
12/01/2010 | CN201663031U Magnetic element |
12/01/2010 | CN101902133A Transformer with high voltage isolation |
12/01/2010 | CN101901678A Unframed transformer and processing method thereof |
12/01/2010 | CN101901670A High frequency mutual inductor and multiplexed output constant flow source with same |
11/24/2010 | EP1782441B1 Planar high voltage transformer device |
11/24/2010 | CN201655520U Simulated voltage transformer |
11/24/2010 | CN201655519U Novel three-phase balancing transformer |
11/24/2010 | CN201655518U Single-phase amorphous alloy pole top transformer |
11/24/2010 | CN201655517U Combined transformer for voice separator |
11/24/2010 | CN101894660A Transformer structure |
11/17/2010 | EP2251878A1 Electric transformer |
11/17/2010 | CN201638662U Mixed type planar transformer |
11/17/2010 | CN201638661U Self-coupling pressure-reducing starting transformer |
11/17/2010 | CN201638634U Multi-stage coarse-and-fine continuous voltage-regulation rectifier transformer for tertiary winding |
11/17/2010 | CN101889319A Stacked inductor and power converter using the stacked inductor |
11/17/2010 | CN101202156B Transformer with safety creepage distance |
11/10/2010 | CN201629215U Complete-sealing corrugated expansion amorphous alloy transformer |
11/10/2010 | CN201629214U Full-sealed three-column amorphous alloy transformer |