H01F 30 - Fixed transformers not covered by group

Patents for H01F 30 - Fixed transformers not covered by group (4,595)
02/2008
02/06/2008	CN201017759Y Transformer device structure
02/06/2008	CN101118804A Magnetic force electric generating devcie
02/06/2008	CN101118802A dry-type traction rectifier transformer capable of easily net-side tapping
02/06/2008	CN100367645C Switching power supply
01/2008
01/31/2008	US20080024259 Extended E Matrix Integrated Magnetics (MIM) Core
01/30/2008	CN201015239Y Lighting tube power source supply circuit and its transformer
01/29/2008	CA2360317C High-voltage transformer
01/23/2008	CN101110293A Micro power converter and method of manufacturing same
01/23/2008	CN100364020C Insulating packaging structure for transformer and packaging method thereof
01/16/2008	CN101107684A Highly heat-resistant static device for electric power
01/16/2008	CN101106015A Dry-type transformer grounding screen production method
01/16/2008	CN101106013A Dry testing transformer
01/10/2008	US20080007378 Toroidal Core Transformer
01/09/2008	CN201004370Y Load current balance device
01/09/2008	CN101103421A Magnetic core for transformer
01/02/2008	CN101097806A High-voltage transformer
12/2007
12/27/2007	WO2007147844A2 Power supply for electrostatic precipitator
12/26/2007	EP1870995A1 Power supply for electrostatic precipitator
12/26/2007	EP1410489B1 Power converters
12/26/2007	CN200997487Y Improved illuminating transformer
12/20/2007	US20070290784 Planar High Voltage Transformer Device
12/20/2007	US20070290670 Device for Reducing Harmonics in Three-Phase Poly-Wire Power Lines
12/19/2007	EP1866938A2 A transformer having a stacked core with a cruciform leg and a method of making the same
12/19/2007	EP1866722A2 A method and device for transforming and regulating a voltage signal
12/13/2007	WO2007142099A1 Power transmitting apparatus, power transmitter and power receiver for power transmitting apparatus and method for operating power transmitting apparatus
12/12/2007	CN101086913A 变压器 Transformer
12/12/2007	CN101086907A A transmission line
12/11/2007	US7307361 Medium voltage power converter formed using low voltage drives
12/06/2007	US20070279019 Transformer Based Voltage Supply
12/06/2007	DE19829424B4 Gleichpoliges Filter DC-pole filter
12/05/2007	CN200986847Y Public lighting combination type dry transformer
12/05/2007	CN200986846Y Second-order transformer system
12/05/2007	CN200986845Y Transformer
12/05/2007	CN100353469C Stick ignition coil apparatus for ignition plug
11/2007
11/28/2007	CN200983312Y Ultra-high voltage parallel electrical resistor
11/28/2007	CN200983310Y Transformer driving multi-lamp tube and its backlight module
11/28/2007	CN200983302Y Three-channel high-voltage transformer structure
11/22/2007	WO2007132558A1 Coil and coil shaping method
11/21/2007	CN200979837Y A composite transformer with triangle wound core
11/21/2007	CN200979836Y 一种变压器 A transformer
11/21/2007	CN100350524C Low transformer mfg method and low transformer
11/20/2007	US7298631 Switching power source apparatus
11/15/2007	WO2007129588A1 High-voltage transformer
11/15/2007	US20070262840 Magnetic element for multi-phase and method of manufacturing the same
11/14/2007	CN200976306Y Hierarchical Insulation extra-high voltage autotransformer
11/14/2007	CN101071681A Transformer apparatus, inverter transformer, and drive circuit
11/14/2007	CN101071679A Thin film device
11/14/2007	CN101071678A Thin film magnetic device and method of manufacturing the same
11/14/2007	CN101071677A Thin film device
11/14/2007	CN101071676A Transformer
11/13/2007	US7295095 Electric component and method of producing the same
11/08/2007	US20070257762 Riaa correction of audio signal with use of transformer
11/07/2007	CN200972821Y Improved structure of high-voltage transformer of two high voltage output
11/07/2007	CN200972820Y Amorphous alloy single-phase oil immersed distribution transformer
11/07/2007	CN200972819Y Extra-high voltage self auto-transformer
11/07/2007	CN101067983A Symmetric three-phase transformer
11/07/2007	CN100347797C 变压器 Transformer
10/2007
10/31/2007	CN200969279Y Direct-buried amorphous alloy high ignition point oil transformer
10/31/2007	CN200969278Y Direct-buried amorphous alloy oil transformer
10/31/2007	CN200969277Y Structure improvement for transformer
10/31/2007	CN200969276Y Improved transformer
10/31/2007	CN101064213A Sleeve type transformer structure
10/24/2007	EP1848014A1 Multilayer coil component
10/24/2007	CN200965823Y A dry-type single-phase power supply transformer
10/24/2007	CN200965822Y An improved high current transformer
10/24/2007	CN100345227C High-voltage transformer
10/17/2007	EP1759397B1 40° phase-shifting autotransformer
10/17/2007	CN200962371Y Railway high-voltage traction transformer
10/17/2007	CN101055793A A three-phase transformer
10/17/2007	CN101055792A A three-phase and four-pole transformer
10/17/2007	CN101055791A A three-phase and five-pole transformer
10/17/2007	CN101055790A 一种平板变压器 A flat transformer
10/10/2007	CN101051561A Compression of three phase five pole type iron core side pole of flame-proof transformer
10/10/2007	CN101051560A High frequency high voltage step-up transformer
10/10/2007	CN101051559A Transformer with closed magnetic path
10/10/2007	CN101051555A Anti-high voltage transformer structure
10/10/2007	CN101051538A Transmission line
10/10/2007	CN101051537A Transmission line
10/09/2007	US7280027 Toroidal core and method for producing the same
10/09/2007	US7280026 Extended E matrix integrated magnetics (MIM) core
10/03/2007	EP1839320A2 Device and method for winding a closed toroidal core
10/03/2007	CN101048830A Magnetic device
10/02/2007	US7277553 Transmission coil system and remote control for a hearing aid
10/02/2007	US7277002 Electronic transformer/inductor devices and methods for making same
10/02/2007	US7277000 Inductor and transformer
09/2007
09/27/2007	US20070222548 Method and apparatus for substantially reducing electrical earth displacement current flow generated by wound components
09/26/2007	CN200953281Y Three-cracking driving rectifier transformer
09/26/2007	CN101042959A Transformer device and circuit apparatus transformer device used for controlling transformer
09/25/2007	US7274000 Power source for high current welding
09/20/2007	US20070217103 Method and equipment for the protection of power systems against geomagnetically induced currents
09/19/2007	CN200950389Y Square iron core/coil transformer
09/19/2007	CN200950380Y Three-phase transformer core
09/19/2007	CN100338699C Transformer and transformer unit with said transformer
09/18/2007	US7271572 Apparatus and methods for providing a voltage adjustment for single-phase voltage regulator operation in a three-phase power system
09/12/2007	EP1833063A1 Magnetic device
09/12/2007	CN200947381Y Single-phase amorphous iron-core transformer
09/12/2007	CN200947380Y Lamp holder type transformer
09/12/2007	CN101036204A Toroidal-core transformer
09/07/2007	WO2007099931A1 Amorphous transformer for electric power supply
09/07/2007	CA2644521A1 Amorphous transformer for electric power supply

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