Patents
Sitemap › H01 - Basic electric elements › H01F - Magnets; Inductances; Transformers; Selection of materials for their magnetic properties › H01F 30 - Fixed transformers not covered by group
Patents for H01F 30 - Fixed transformers not covered by group (4,595)
07/2010
07/14/2010CN101103421B Magnetic core for transformer
07/13/2010US7752735 Coil bus transformer and a method of manufacturing the same
07/06/2010US7750782 Nine-phase autotransformer
07/01/2010DE102008054939A1 Stromkompensierte Drossel und Verfahren zur Herstellung einer Stromkompensierten Drossel Current-compensated choke and method for producing a current-compensated choke
06/2010
06/30/2010EP2201582A1 A dry-type transformer with a polymer shield case and a method of manufacturing the same
06/30/2010CN201518548U Voltage regulation type energy-saving street lamp power source
06/30/2010CN201518271U Separable transformer for non-contact type transmission of underwater electric energy on the basis of butterfly magnet core
06/30/2010CN201518270U Transformer structure
06/24/2010DE102009017399A1 High-power toroidal transformer is provided with high voltage segment and low-voltage segment arranged on ring core
06/23/2010CN201514848U Ring structure magnetic saturation voltage stabilizing transformer for power distribution equipment
06/23/2010CN201514847U Three-phase grounding voltage transformer
06/23/2010CN1979704B Transformer and its producing method
06/23/2010CN101752071A Ballast for multiple lamps and method of manufacturing the same
06/23/2010CN101752055A Magnetic element
06/22/2010US7741133 Resistance measurements of a helical coil
06/17/2010WO2010067515A1 Method for winding lead wire on multilayer coil electronic components
06/17/2010US20100148900 Symmetrical auto transformer wye topologies
06/17/2010US20100148899 Symmetrical auto transformer delta topologies
06/17/2010US20100148898 Zigzag autotransformer apparatus and methods
06/16/2010EP2197097A1 Electric compressor integrated with inverter and its coil component for inverter device
06/16/2010CN201508762U Buried dry-type transformer
06/16/2010CN1841582B Magnetic element and power supply
06/16/2010CN101740213A Panel transformer
06/10/2010US20100141234 Transformer with high voltage isolation
06/09/2010CN1937117B Transformer with wound single unit
06/09/2010CN1905095B Transformer
06/09/2010CN101728072A Mixed type flat surface transformer
06/09/2010CN101728071A Transformer
06/09/2010CN101728070A Pulse transformer with choking coil and manufacturing method thereof
06/09/2010CN101170010B Thin transformer and transformer component
06/02/2010EP2192679A1 Three-phase inverter for converting DC power from a generator into three-phase AC power
06/02/2010EP2191552A2 Multiphase inductive power supply system
06/02/2010CN201498348U Triphase-to-single-phase transformer
06/02/2010CN201498347U Patch transformer
06/02/2010CN201498346U 10 and 20 KV dual voltage distribution transformer
06/02/2010CN201498345U Improved structure of multi-output converter transformer
06/02/2010CN101720160A Driving circuit of cold cathode fluorescence lamp
06/02/2010CN101256891B Extra-high voltage single-phase autotransformer
05/2010
05/26/2010CN201491349U System for driving lamp tube
05/26/2010CN201490974U High-linearity short-waveband 20W power amplifier
05/26/2010CN201489984U Novel transformer
05/26/2010CN201489983U Electronic transformer
05/26/2010CN201489982U planar transformer
05/26/2010CN201489981U High-frequency inverter transformer for backlight source
05/26/2010CN201489966U Novel transformer
05/26/2010CN201489943U Magnetic component used for power supply
05/26/2010CN101055793B A three-phase transformer
05/26/2010CN101055792B A three-phase and four-pole transformer
05/19/2010CN201478094U Chip transformer for preventing wire friction
05/19/2010CN201478093U Multi-layer film aluminum foil transformer
05/19/2010CN201478092U Amorphous alloy 10 kV oil-immersed transformer for wind power generation
05/19/2010CN201478091U Amorphous alloy 10 kV dry-type transformer for wind power generation
05/19/2010CN201478090U Flat transformer
05/19/2010CN201478089U High-power planar transformer
05/19/2010CN201478088U Amorphous alloy 35kV oil immersed type transformer for solar power generation
05/19/2010CN201478075U Serial-parallel connection device of duplex-winding double-fission three-phase transformer
05/19/2010CN101711088A Linear type high-frequency transformation device of electron accelerator
05/19/2010CN101711087A Fluorescent lamp dimming drive device and dimming method therefor
05/14/2010WO2010051911A1 Arrangement of winding segments
05/12/2010EP2184749A1 Arrangement of coil segments
05/12/2010CN201465772U Structure of T-shaped wiring traction transformer
05/12/2010CN201465771U Epoxy resin casting autotransformer
05/12/2010CN201465770U Connection structure of converter transformer and gas relays
05/12/2010CN1841901B Micro electric power converter
05/11/2010US7714687 Transformer
05/06/2010WO2010049041A1 Transformer
05/06/2010CA2740908A1 Transformer
05/05/2010EP2182533A1 Transformator
05/05/2010EP2181452A1 Three-phase multi-winding device
05/05/2010CN201449880U Single-phase current transformer
05/05/2010CN201449867U Practical low-thickness multi-magnetic circuit LLC power transformer
05/05/2010CN201449866U 36-pulse-wave high-power frequency conversion rectifying transformer
05/05/2010CN201449865U New layout structure of high-voltage electrical elements in 35kv wind power combined-type transformer
05/05/2010CN201449852U Double-pulse wave combined transformer
05/05/2010CN1692456B Circuit using choke coil and choke coil
04/2010
04/29/2010WO2010047261A1 Multilayer insulated wire and transformer using same
04/29/2010US20100101936 Power supply apparatus for a capacitivie load
04/28/2010CN201444443U Transformer capable of controlling part of voltage
04/28/2010CN201444442U Resin casting dry type transformer with rectangular iron cores
04/28/2010CN1574127B Inductance part and electronic apparatus therewith
04/28/2010CN101699584A electronic transformer
04/22/2010WO2010045578A1 Modular jack with improved magnetics and method of manufacturing same
04/21/2010CN201440372U Transformer improved structure
04/21/2010CN201440366U Combined multifunctional voltage transforming device for laboratory use
04/21/2010CN201440358U High-efficiency high-stability high-power bipolar electromagnet power supply device
04/21/2010CN101697313A Novel magnetic ring transformer
04/21/2010CN101055791B A three-phase and five-pole transformer
04/15/2010US20100091522 Extended E Matrix Integrated Magnetics (MIM) Core
04/14/2010CN201438409U Planar transformer component device
04/14/2010CN1929053B Classified insulating extra-high voltage auto-transformer
04/14/2010CN1806301B High-frequency heating device
04/14/2010CN101211191B Directional regulation circuit
04/13/2010US7696852 Electronic transformer/inductor devices and methods for making same
04/08/2010US20100085139 High Current Amorphous Powder Core Inductor
04/07/2010CN101692396A Arrangement structure for transformer with split windings
04/06/2010US7692523 Multi-voltage power transformer for the high-voltage electricity transmission network
03/2010
03/31/2010CN201435709Y Drive transformer circuit simultaneously providing control power supply
03/31/2010CN101689421A Winding inductor and process for manufacturing the same
03/31/2010CN101685704A Transformer and structure thereof as well as power amplifier
03/25/2010WO2010032464A1 Laminated electronic component
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