Patents
Sitemap › H01 - Basic electric elements › H01F - Magnets; Inductances; Transformers; Selection of materials for their magnetic properties › H01F 21 - Variable inductances or transformers of the signal type
Patents for H01F 21 - Variable inductances or transformers of the signal type (1,432)
12/2012
12/27/2012US20120326824 Inductive sensor with datum adjustment
12/25/2012US8338990 Inductive power supply system with multiple coil primary
12/19/2012CN202615970U Dry-type transformer with auxiliary iron core for electric locomotive
12/19/2012CN102832011A Adaptive antenna tuning and trimming inductor of multi-band communication device
12/13/2012US20120313741 Data Transmission Apparatus Comprising a Helically Wound Conductor
12/12/2012CN202601367U Inductance device of bidirectional adjustable magnetic core
12/12/2012CN202601366U Adjustable inductor
12/12/2012CN102208247B High-voltage magnetic saturation single-phase controllable reactor
12/12/2012CN102208244B Orthogonal magnetized single-phase controllable reactor
12/05/2012CN202585000U High-voltage resistor of manual inductance-regulation frequency-conversion series-connected resonance device
12/05/2012CN202584999U High-voltage electric reactor for electric inductance regulation variable frequency series resonance device
12/05/2012CN102810383A Controllable reactor
11/2012
11/28/2012CN102800469A System and method of filling an air gap between a pair of core sections of a transformer
11/27/2012US8319593 Signal transforming circuit
11/27/2012US8319592 Variable inductor
11/21/2012CN102231316B Two-section-type double-iron-core differential transformer
11/15/2012DE10111975B9 Verfahren zur Fehlererfassung für eine Vorrichtung zur Positionserfassung mit elektromagnetischer Induktion Error-detection method for a position detecting apparatus using electromagnetic induction
11/08/2012US20120280777 Easily installed rotary transformer
11/06/2012US8305183 Transformer for multi-output power supplies
11/01/2012US20120273266 Inverter and electronic device using the inverter
10/2012
10/25/2012US20120268228 Tuning Circuit
10/24/2012CN102751073A Power transformer capable of smoothly adjusting output voltage
10/18/2012US20120262263 Input device
10/17/2012CN101539816B Electromagnetic pen, electromagnetic signal transmitting method, processing method, device and equipment
10/16/2012US8289118 Stacked inductor
10/16/2012US8289117 Ignition coil with energy storage and transformation
10/11/2012WO2012136378A1 Multisection rotary variable differential transformer, method for determining an angular position of a member that can rotate, and corresponding control device
10/10/2012CN202488396U Magnetic valve controllable reactor control system
10/10/2012CN202487311U Filter reactor
10/10/2012CN102723167A Audio-frequency transformer
10/09/2012US8284007 Magnetic package for a communication system
10/04/2012WO2012132179A1 Variable inductor and semiconductor device using same
10/04/2012US20120249278 System and method for operating a tap changer
10/03/2012CN202473485U Adjustable vertical inductor
10/03/2012CN202473484U Horizontal type adjustable inductor
09/2012
09/27/2012WO2012127875A1 Variable inductor
09/26/2012CN202454377U Pressure regulating coil of variable flux pressure regulating rectifier transformer
09/19/2012CN102682956A Vertical double excitation controllable electric reactor
09/19/2012CN102682955A Adjustable inductance
09/19/2012CN102306533B High-power adjustable inductor
09/18/2012US8269590 Rotary transformer
09/13/2012DE10111975B4 Verfahren zur Fehlererfassung für eine Vorrichtung zur Positionserfassung mit elektromagnetischer Induktion Error-detection method for a position detecting apparatus using electromagnetic induction
09/12/2012CN101345123B Inductor-adjustable apparatus
09/11/2012US8264315 Linear variable differential transformers
09/05/2012CN202422912U Stepless voltage-regulating transformer
09/05/2012CN101226815B Choke transformer without maintenance
08/2012
08/30/2012US20120218069 High frequency rotary transformer for synchronous electrical machines
08/22/2012CN102646499A Dry type transformer with secondary iron core for electric locomotive
08/21/2012US8248198 Variable inductor with non-magnetic core and method of manufacture therefor
08/15/2012CN101212238B Signal distribution inductor
08/08/2012CN202367327U End edge welding type quartz crucible smelting arc welding machine
07/2012
07/25/2012CN102611377A Magnetic valve type controllable electric reactor control system and control method
07/25/2012CN102610365A 可变电感器 Variable inductor
07/24/2012US8228155 Multi-point connection module for a transformer coil, and a transformer comprising such a connection module
07/11/2012CN202332478U 双电压变压器 Dual voltage transformer
07/11/2012CN102568755A Water-cooling reactor with online continuous adjustment function
07/11/2012CN102568754A Controllable rectification separated type reactor
07/11/2012CN102568753A Stepless voltage regulating transformer
07/10/2012US8217749 Coil component, transformer, switching power supply unit, and method for manufacturing coil component
07/10/2012US8217747 Planar inductor
07/04/2012CN202307459U 一种可设置多种电压输出的绕组及设有这种绕组的变压器 One kind of output voltage can be set to a variety of features such winding and winding transformer
07/04/2012CN102545171A Multi-winding adjustable reactor and single phase grounding fault clearing method thereof
07/04/2012CN102543361A Tunable inductor
07/04/2012CN101930826B Continuous transformer
07/03/2012US8212642 Transponder system
06/2012
06/19/2012US8203415 Bobbin structure and transformer having the same
06/13/2012CN202275707U 一体式升压升流器 One-step-up converter
06/13/2012CN102496441A Voltage-regulating coil of variable flux voltage-regulating rectifier transformer
06/12/2012US8198968 System and method for multiple band transmission
06/07/2012WO2012074460A1 Imbalance detection and reduction for wideband balun
06/06/2012CN102486958A Strip-shaped safe slide regulating transformer
05/2012
05/31/2012US20120133466 Method and Apparatus for Coil-less Magnetoelectric Magnetic Flux Switching for Permanent Magnets
05/30/2012CN202258653U Variometer
05/30/2012CN202258652U Three-phase adjustable reactor having linearity and nonlinearity characteristics
05/30/2012CN102483984A 可切换电感器网络 Switchable inductor network
05/23/2012CN202231443U Valve block
05/23/2012CN101819854B Tertiary winding multi-stage coarse and fine continuous voltage adjustment rectifier transformer
05/23/2012CN101799270B Transformer type angle sensing system
05/23/2012CN101640103B Adjusting system of electronic parameters and device
05/15/2012US8179223 Sheet type transformer and discharge lamp lighting apparatus
05/10/2012DE102010043560A1 Mikrophon unter Verwendung eines magnetoelastischen Effekts Microphone using a magnetoelastic effect
05/02/2012CN101434248B Series cab signal two-way receiver coil
05/02/2012CN101325115B Inductive element
05/01/2012US8169289 Reactor
05/01/2012US8166844 Rotating device and robot arm device
04/2012
04/25/2012CN101826388B 一种电感元件 An inductor element
04/12/2012WO2012047875A1 Fluidic constructs for electronic devices
04/11/2012CN202188855U 传感器调节机构 Sensor adjustment mechanism
04/10/2012US8154371 Method and apparatus for adjusting displacement current in an energy transfer element
04/10/2012US8154369 Method and device for controlling of a magnetic flux
04/05/2012US20120081200 Inductive Device
04/05/2012DE102010047261A1 Schaltvorrichtung Switching device
04/04/2012EP1567870B1 Mobile member speed sensor
03/2012
03/22/2012US20120072150 Operation input apparatus and operation input detection apparatus
03/22/2012US20120068801 Fluidic constructs for electronic devices
03/20/2012US8138875 Inductively powered apparatus
03/07/2012CN202159545U 一种可长时间工作的可调长间隙电抗器 An adjustable length can work for a long time gap Reactor
03/06/2012US8130066 Wire winding device for a high power level transformer
02/2012
02/28/2012US8126523 Use of superconductor components in thin layers as variable inductance and devices including said components and corresponding control method
02/28/2012US8125304 Power electronic module with an improved choke and methods of making same
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