Patents
Patents for H01F 19 - Fixed transformers or mutual inductances of the signal type (1,296)
09/2011
09/15/2011WO2008130796A3 Balun signal transformer
09/14/2011CN201975199U 接口型脉冲变压器 Interface type pulse transformer
09/14/2011CN201975198U 车载导航仪脉冲变压器 Car navigator pulse transformer
09/08/2011US20110215793 Method and device for diagnosing signal status in measurement, drive, or control, and transformer used in the device
09/07/2011CN201966022U 一种水冷式高频变压器 One kind of water-cooled high-frequency transformer
09/07/2011CN201966021U 一种高频变压器 A high-frequency transformer
08/2011
08/31/2011EP2362417A2 A semiconductor device having a suspended isolating interconnect
08/31/2011CN201957018U 一种用于旋转体的信号传送装置 Signal transmission apparatus for a rotating body
08/31/2011CN201956157U 高频电感器 High-frequency inductors
08/24/2011EP1388988B1 Chip-scale coils and isolators based thereon
07/2011
07/28/2011WO2011039582A3 Low cost charger transformer
07/21/2011US20110175642 Signal isolators using micro-transformers
07/06/2011CN201893218U Noise-reducing pulse transformer
07/06/2011CN201893217U Ultrathin pulse transformer
07/06/2011CN201893216U Pulse transformer
05/2011
05/30/2011CA2721544A1 Coax-balun module
05/25/2011CN201845650U Balanced-unbalanced transformer
05/18/2011CN201838440U Multi-channel transformer applying pancake coil
05/18/2011CN101047059B Metal-isolator-metal transformer and its manufacturing method
05/12/2011US20110109417 Power transformer for radiofrequency signals
04/2011
04/21/2011WO2011045312A1 Integrated transformer with multiple transformation ratios
04/20/2011CN201804659U Pulse transformer driving IGBT
04/14/2011DE102010029470A9 Galvanischer Isolator Galvanic isolator
04/13/2011CN201796714U Coupled high-frequency transformer device
04/13/2011CN201796675U Broadband square-wave transformer for measurement and protection
04/07/2011WO2011039582A2 Low cost charger transformer
04/06/2011CN201788783U Energy-saving high-frequency transformer
04/06/2011CN201788782U High-frequency transformer
04/05/2011US7920010 Signal isolators using micro-transformers
04/05/2011CA2474817C High frequency network multiplexed communications over various lines using multiple modulated carrier frequencies
03/2011
03/30/2011EP2302850A1 Signal isolators using micro-transformers
03/30/2011CN101996738A Pulse transformer
03/24/2011WO2011032764A1 Integrated circuit for transferring information
03/24/2011US20110068887 On-die micro-transformer structures with magnetic materials
03/09/2011CN201758064U Wideband square-wave current transformer used for measurement and protection
03/03/2011WO2011025423A1 An improved transformer
03/03/2011US20110050379 Planar transformer
03/03/2011US20110050292 Coreless printed-circuit-board (pcb) transformers and operating techniques therefor
02/2011
02/22/2011CA2414724C Induction sensor using printed circuit
02/10/2011DE102009036396A1 Stromkompensierte Drossel und Verfahren zur Herstellung einer stromkompensierten Drossel Current-compensated choke and method for producing a current-compensated choke
02/09/2011CN201741522U Radar pulse transformer
01/2011
01/20/2011WO2011008866A1 1:9 broadband transmission line transformer
01/19/2011EP2274753A1 Power transformer for radiofrequency signals
01/12/2011CN201708001U Low magnetic leakage high frequency transformer
01/05/2011CN101937754A Audio transformer and audio circuit
01/04/2011US7864014 Mode-switching transformer
12/2010
12/30/2010US20100328011 Mode-switching transformer
12/29/2010CN201689768U High frequency electric transformer
12/23/2010US20100323507 Substrate processing apparatus and producing method of device
12/22/2010CN101924489A Non-thermal plasma pulse power supply
12/22/2010CN101922750A Smoke exhaust ventilator provided with plasma for purification
12/14/2010US7852185 On-die micro-transformer structures with magnetic materials
12/09/2010WO2010139607A1 Ferrite core assembly
12/09/2010DE102010029470A1 Galvanic isolator for high voltage isolation communication device, has receiver circuit connected to receiving coil that generates signal similar to input signal based on pulses corresponding to rising and falling edges of input signal
12/08/2010CN201667269U Pulse transformer for triggering a thyristor
12/01/2010EP2256752A2 Millimetric wave transformer with high transformation ratio and low insertion losses
12/01/2010CN101901670A High frequency mutual inductor and multiplexed output constant flow source with same
11/2010
11/30/2010US7844841 Electronic device
11/24/2010CN201655506U Novel multi-groove safety frame for flyback high-frequency transformer
11/17/2010CN201638633U Low-voltage high-current high frequency water-cooled transformer
11/17/2010CN101887795A High frequency dust removing dry type transformer
11/11/2010US20100283571 Electromagnetic apparatus using shared flux in a multi-load parallel magnetic circuit and method of operation
11/10/2010CN201629196U Insulation pulse type transformer
11/04/2010WO2010085094A3 Electrical coil
11/03/2010CN201622903U Novel multi-groove flyback high frequency transformer
10/2010
10/27/2010CN201616315U 高频变压器 High-frequency transformer
10/14/2010WO2010118297A1 Magnetic film enhanced transformer
10/14/2010US20100258530 Substrate processing apparatus and producing method of device
10/14/2010DE19851596B4 Spulenanordnung und Verfahren zum Aufbau einer Spulenanordnung Coil assembly and method for constructing a coil arrangement
10/13/2010CN101859629A Coupling coil and arc welding machine with the same
10/07/2010DE102006020808B4 Induktiver Drehübertrager mit Polymermaterial und Verfahren zur Herstellung eines solchen Inductive rotating transformer with polymeric material and methods for producing such
09/2010
09/23/2010DE102010002430A1 Minimierung elektromagnetischer Interferenz in Spulentransducern Minimize electromagnetic interference in Spulentransducern
09/23/2010DE102009013983A1 Transducer for negative frequency signals, has multiple interlaced windings on high-permeable cores, where silver wire with small diameter is used as material for windings
08/2010
08/19/2010DE102010001888A1 Coil transducer for data signal and power transformer has first and second electrically conductive coils which are arranged in state power and data signal is transmitted from first coil to second coil across core layer having no vias
08/11/2010CN101800115A High-frequency pulse crude oil dehydration transformer
08/03/2010US7768371 Coreless printed-circuit-board (PCB) transformers and operating techniques therefor
07/2010
07/29/2010WO2010085094A2 Electrical coil
07/28/2010CN101291052B Manufacturing method of control device for low-voltage isolation technique
07/21/2010CN101785073A Power transmitting apparatus, power transmitter and power receiver for power transmitting apparatus and method for operating power transmitting apparatus
07/13/2010CA2366582C Rf transformer with compensation transmission line
07/07/2010CN201523324U Insulating RS485 power supply circuit for electric energy meter and pulse transformer thereof
06/2010
06/23/2010CN1979704B Transformer and its producing method
06/23/2010CN101752064A Winding structure for secondary and primary coil of high-power medium-frequency transformer
06/23/2010CN101752061A High-frequency transformer for high-power switch power supply
06/16/2010CN101740197A Wide-frequency square-wave transformer for measurement and protection and manufacturing method thereof
06/09/2010CN101728955A Isolation RS485 power supply circuit for electric energy meter and pulse transformer thereof
06/03/2010US20100134139 Signal isolators using micro-transformers
05/2010
05/26/2010CN201489944U High-frequency transformer
05/19/2010CN201478076U high-frequency and high-voltage transformer
05/06/2010DE102007009724B4 Signalübertragungsvorrichtung Signal transmission device
05/05/2010CN201449835U Chip-type anti-electromagnetic interference high frequency inductance element
05/05/2010CN1747080B Laminated balun transformer
04/2010
04/06/2010US7692444 Signal isolators using micro-transformers
04/01/2010US20100078761 Semiconductor transformers
03/2010
03/23/2010US7683654 Signal isolators using micro-transformers
03/17/2010CN101675488A planar transformer with boards
03/11/2010DE102005020615B4 Signalübertragungsanordnung mit einem Transformator und einer Empfängerschaltung Signal transmission arrangement with a transformer and a receiver circuit
03/02/2010US7671714 Planar inductive component and a planar transformer
02/2010
02/17/2010CN101651009A Chip anti-electromagnetic interference high frequency inductance element
02/10/2010EP2150964A1 Planar transformer with boards
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