121 |
JPS6222525B2 - |
JP7667181 |
1981-05-22 |
JPS6222525B2 |
1987-05-19 |
TAKATANI MINORU |
|
122 |
Transformer |
JP7454085 |
1985-04-10 |
JPS60229317A |
1985-11-14 |
YOHANESU FUBERUTASU TOOBEN; YOHAN REONARUDO PARUMEN |
|
123 |
Laminated transformer |
JP10421183 |
1983-06-13 |
JPS59229808A |
1984-12-24 |
TAKATANI MINORU; KANAGAWA YOUICHI |
PURPOSE:To obtain a transformer having a low distributed capacitance and a high coupling coefficient by dividing the one coil forming conductor into two lap windings and providing other lap winding forming conductor between these two lap windings. CONSTITUTION:A primary conductor coil 2 and a secondary conductor coil 3 are buried within an integrated sintered material 1 of the ferrite having a high permeability. The secondary conductor coil 3 is divided into the portions 3', 3'' having almost equal number of truns, the diameter of windings 3', 3'' is almost equal and the winding of primary conductor coil 2 is inserted between these portions 3' and 3''. The portions 3', 3'' are mutually connected through the terminal T6 and the end portions of respective conductors are extended to the terminals T1-T5. As a method for manufacturing a laminated transformer, magnetic paste is manufactured using ferrite powder, conductor paste is manufactured using metal powder of Ag, Ag-Pd, Pd, etc. The magnetic layers 4-8 of the magnetic paste and lead conductors 9-12 for almost half-turn of conductor paste are sequentially lapped by printing method in this sequence in order to obtain a laminated transformer. |
124 |
Balanced-balanced type transformer |
JP13778981 |
1981-09-03 |
JPS5840808A |
1983-03-09 |
SATOU NORIO; YANAKA SADAO; FUTAMI MASAAKI |
PURPOSE:To eliminate an increase in parallel equivalent capacity and to make a transformer with a reasonal price as well by a method wherein a bobbin used for the transformer is placed in parallel with the axial core of an iron core to divide into two and half each of the primary winding having the reverse winding direction respectively and the similar secondary windings located on the respective primary windings are provided on the bobbin and respective windings are connected in series. CONSTITUTION:The bobbin for a transformer placed in parallel with the axial core of an iron core is divided into two and half each of the primary winding, Ia andIb having the reverse winding direction respectively is wound on the base section of the bobbin respectively. Half each of the secondary winding IIa and IIb having the reverse winding direction in the same way is respectively wound on the primary windings and the ends of the windings of the primary windingsIa andIb are connected in series and those of the secondary windings are also connected in series. In this way, the neutral points of the primary windings and the secondary windings become zero electrical potential. Then, insulators provided between these windings are not required and parallel equivalent capacity against these windings becomes small. |
125 |
Iron core for small transformer |
JP10439780 |
1980-07-31 |
JPS5730301A |
1982-02-18 |
KIJIMA SEIICHI |
PURPOSE:To miniaturize a transformer holding performance of operation by a method wherein the inside faces of outside legs of cores are curved as to along the outside circumferential face of a coil, the side faces of an inside leg facing to the outside legs are formed protruding nearly in parallel with the inside faces of outside legs, and the inside leg is formed as thinner than the breadth of core. CONSTITUTION:The inside faces of right and left legs 15a, 16a of the cores 15, 16 are formed as to curve in a polygonal shape along the outer circumferential face of the coil, center legs 15b, 16b are made flatly and as thinner than the breadth of the core, and the side faces thereof facing with the right and left legs 15a, 16a are formed protruding in a square shape as to along the inside circumferential face of the coil. Moreover to make provision for the quipping position of terminal pins as the transformer, notches 15c, 16c are provided at both the side yoke parts of the center legs 15b, 16b being placed between the right and left legs 15a, 16a. Accordingly because the part of the coil protruding from the core can be made extremely small, miniaturization of the transformer is enabled without damaging performance characteristic as compared with the traditional small transformer. |
126 |
Oscillation transformer for flasher |
JP10641079 |
1979-08-21 |
JPS5630715A |
1981-03-27 |
TAKEMATSU YOSHIYUKI |
PURPOSE:To miniaturize the whole size and to elevate the mass productivity and the ecomony of the oscillation transformer for flasher by a method wherein the height is made to be lower and the volume is made to be smaller, and the construction of core is simplified. CONSTITUTION:The primary winding 11c consisted of a conductor having the diameter of about 0.4mm. is wound about six times around a winding part 11b1 of a bobbin 11b of the oscillation transformer 11, and the secondary winding consisted of a conductor having the diameter of about 0.04mm. is wound around about 800 times at the inside of the winding 11c. A core 11a is consisted of an E-shaped core 11a, and a flat plate core 11a2. By this way, the whole height is formed to be about 7mm., the length of one side to be about 10mm. and the breadth of core to be about 4.8mm.. By turning a power switch 12 to ON side, a capacitor 16 is made to be changed with the charge from a source 13 through a resistor 14 and a feedback winding 11c, and an oscillation transistor Tr15 is made to be ON state by the application of voltage to the Tr to make a current to flow through the winding 11c. By this current, the voltage of 350V is induced in a winding 11f, and a current also flows in a winding 11e to continue the oscillation. |
127 |
Induction heating coil assembly |
JP6634180 |
1980-05-19 |
JPS55159591A |
1980-12-11 |
UIRUBAA KURARENSU PARUMAA; FURANKU REONAADO RASUBII |
|
128 |
COUPLED INDUCTOR IN A DC-DC CONVERTER |
US15971282 |
2018-05-04 |
US20180323709A1 |
2018-11-08 |
Jingquan Chen; Chuan Ni |
This disclosure is related to the technical field of magnets, and in particular to a method for applying a coupled inductor to a DC-DC converter providing a DC current output, and based on the number of phases of the DC-DC converter, the coupled inductor is designed to have a corresponding number of windings, the windings are reversely coupled to cancel out the magnetizing fields to avoid flux saturation of the magnet material under high current excitation, and the coupled inductor has air gaps, the leakage flux in the air gap induced by each winding is in the same direction, the leakage magnetic flux is used to achieve the filtering of the output current. |
129 |
Method for manufacturing magnetic substrate and common mode filter |
US14173699 |
2014-02-05 |
US09881726B2 |
2018-01-30 |
Sung Kwon Wi; Jeong Bok Kwak; Sang Moon Lee; Young Seuck Yoo; Yong Suk Kim |
A common mode filter is manufactured to include a coil part including an insulation layer and a conductor pattern formed in the insulation layer; and a magnetic substrate coupled to one surface or both surfaces of the coil part. The magnetic substrate includes: an electrostatic absorbing layer made of an electrostatic absorbing material; a magnetic layer provided on one surface or both surfaces of the electrostatic absorbing layer and made of a magnetic material; and an electrode provided between the magnetic layer and the electrostatic absorbing layer and made of a conductive material. Therefore, common mode filter may maintain high efficiency characteristics while preventing an electrostatic discharge phenomenon. |
130 |
High performance inductor/transformer and methods of making such inductor/transformer structures |
US14929869 |
2015-11-02 |
US09530553B1 |
2016-12-27 |
Sunil Singh; Jagar Singh; Pankaj Marria |
An inductor/transformer device is disclosed including a lower inductor/transformer structure including a first inner core material and a first outer cap layer, an upper inductor/transformer structure positioned above and vertically spaced apart from the lower inductor/transformer structure, the upper inductor/transformer structure including a second inner core material and a second outer cap layer, wherein the lower surface area of the upper inductor/transformer structure is different than the upper surface area of the lower inductor/transformer structure, and an insulating material positioned between the upper surface of the lower inductor/transformer structure and the lower surface of the upper inductor/transformer structure. |
131 |
Transformer including a contactless signal connection |
US14129852 |
2012-06-14 |
US09515535B2 |
2016-12-06 |
Carl-Gustaf Carlin |
An improved transformer (130) for use in a power tool (100) is disclosed, where the power tool (100) comprises a stationary body (110) and a shaft (120) being movable in relation to said body (110). The transformer (130) comprises a stator (210) being fixed in relation to said body (110) and including one or more stator windings (216). The transformer (130) also comprises a rotor (220) being movable with said shaft and including one or more rotor windings (226). A magnetic field B is shared by said one or more stator and rotor windings (216, 226) and is used for creating a contactless signal connection between said body and at least one sensor of said shaft. According to the present invention, the stator (210) and the rotor (220) are arranged for forming a mutual geometrical relationship such that said contactless signal connection is provided for different positions in both an axial direction A and a rotational direction R of said shaft.FIG. 2c. |
132 |
EMBEDDED SOLENOID TRANSFORMER FOR POWER CONVERSION |
US15103239 |
2014-12-22 |
US20160307690A1 |
2016-10-20 |
Mickey P. Madsen; Jakob Døllner Mønster |
A resonant power converter for operation in the radio frequency range, preferably in the VHF, comprises at least one PCB-embedded transformer. The transformer is configured for radio frequency operation and comprises a printed circuit board defining a horizontal plane, the printed circuit board comprising at least two horizontal conductive layers separated by an isolating layer, a first embedded solenoid forming a primary winding of the transformer and a second embedded solenoid being arranged parallel to the first solenoid and forming a secondary winding of the transformer, wherein the first and second embedded solenoids are formed in the conductive layers of the printed circuit board, wherein each full turn of an embedded solenoid has a horizontal top portion formed in an upper conductive layer, a horizontal bottom portion formed in a lower conductive layer, and two vertical side portions formed by vias extending between the upper and the lower conducting layers. |
133 |
TRANSFORMER WITH HIGHLY RESISTIVE CORE |
US14916307 |
2014-09-04 |
US20160217901A1 |
2016-07-28 |
Robert E. Klinkowstein |
An electrical transformer is provided. The transformer may include a first winding, a second winding, and a highly resistive magnetic core. The highly resistive magnetic core may provide galvanic isolation between the core material and both the first and second windings. |
134 |
Method for manufacturing magnetic substrate and common mode filter |
US13570735 |
2012-08-09 |
US08813356B2 |
2014-08-26 |
Sung Kwon Wi; Jeong Bok Kwak; Sang Moon Lee; Young Seuck Yoo; Yong Suk Kim |
A common mode filter is manufactured to include a coil part including an insulation layer and a conductor pattern formed in the insulation layer; and a magnetic substrate coupled to one surface or both surfaces of the coil part. The magnetic substrate includes: an electrostatic absorbing layer made of an electrostatic absorbing material; a magnetic layer provided on one surface or both surfaces of the electrostatic absorbing layer and made of a magnetic material; and an electrode provided between the magnetic layer and the electrostatic absorbing layer and made of a conductive material. Therefore, common mode filter may maintain high efficiency characteristics while preventing an electrostatic discharge phenomenon. |
135 |
METHOD FOR MANUFACTURING MAGNETIC SUBSTRATE AND COMMON MODE FILTER |
US14173699 |
2014-02-05 |
US20140153147A1 |
2014-06-05 |
Sung Kwon WI; Jeong Bok KWAK; Sang Moon LEE; Young Seuck YOO; Yong Suk KIM |
A common mode filter is manufactured to include a coil part including an insulation layer and a conductor pattern formed in the insulation layer; and a magnetic substrate coupled to one surface or both surfaces of the coil part. The magnetic substrate includes: an electrostatic absorbing layer made of an electrostatic absorbing material; a magnetic layer provided on one surface or both surfaces of the electrostatic absorbing layer and made of a magnetic material; and an electrode provided between the magnetic layer and the electrostatic absorbing layer and made of a conductive material. Therefore, common mode filter may maintain high efficiency characteristics while preventing an electrostatic discharge phenomenon. |
136 |
Transformer |
US13231429 |
2011-09-13 |
US08536969B2 |
2013-09-17 |
Joong Jin Nam; Chul Hwan Yoon; Ki Joong Kim; Ju Young Park; Jun Goo Won; Youn Suk Kim |
A transformer having a structure in which first and second substrates are vertically laminated, including: a plurality of input conductive lines disposed on the first substrate along a circumference thereof; a single output conductive line disposed co-planarly with the plurality of input conductive lines, and having one end connected to a ground; and an air bridge including a pair of conductive via holes formed in any one conductive line in an overlapped area in which the input and output conductive lines are intersected with each other to penetrate through the first substrate and a single piece of conductive line connecting the pair of conductive via holes to each other and disposed on the second substrate, thereby preventing a short-circuit between the input and output conductive lines. |
137 |
MAGNETIC SUBSTRATE, COMMON MODE FILTER, METHOD FOR MANUFACTURING MAGNETIC SUBSTRATE AND METHOD FOR MANUFACTURING COMMON MODE FILTER |
US13570735 |
2012-08-09 |
US20130057378A1 |
2013-03-07 |
Sung Kwon WI; Jeong Bok KWAK; Sang Moon LEE; Young Seuck YOO; Yong Suk KIM |
Disclosed herein are a magnetic substrate, a common mode filter, a method for manufacturing a magnetic substrate, and a method for manufacturing a common mode filter. The common mode filter includes: a coil part including an insulation layer and a conductor pattern formed in the insulation layer; and a magnetic substrate coupled to one surface or both surfaces of the coil part, wherein the magnetic substrate includes: an electrostatic absorbing layer made of an electrostatic absorbing material; a magnetic layer provided on one surface or both surfaces of the electrostatic absorbing layer and made of a magnetic material; and an electrode provided between the magnetic layer and the electrostatic absorbing layer and made of a conductive material. Therefore, common mode filter may maintain high efficiency characteristics while preventing an electrostatic discharge phenomenon. |
138 |
TRANSFORMER |
US13231429 |
2011-09-13 |
US20120068803A1 |
2012-03-22 |
Joong Jin Nam; Chul Hwan Yoon; Ki Joong Kim; Ju Young Park; Jun Goo Won; Youn Suk Kim |
A transformer having a structure in which first and second substrates are vertically laminated, including: a plurality of input conductive lines disposed on the first substrate along a circumference thereof; a single output conductive line disposed co-planarly with the plurality of input conductive lines, and having one end connected to a ground; and an air bridge including a pair of conductive via holes formed in any one conductive line in an overlapped area in which the input and output conductive lines are intersected with each other to penetrate through the first substrate and a single piece of conductive line connecting the pair of conductive via holes to each other and disposed on the second substrate, thereby preventing a short-circuit between the input and output conductive lines. |
139 |
Semiconductor transformers |
US12441777 |
2007-09-21 |
US08049301B2 |
2011-11-01 |
Shu Yuen Ron Hui |
A planar transformer structure, which can be constructed in an integrated semiconductor circuit without using traditional metallic windings. To avoid large thermal expansion of metallic spiral windings and associated mechanical stress on a metal-semiconductor interface, it is suggested that highly doped semiconductor materials with or without silicides and salicides can be used to form windings or conducting paths because their thermal expansion coefficients are similar to that of semiconductor material. The planar semiconductor transformer may find application for low-power and signal transfer that needs electrical isolation. |
140 |
Signal Transmission Arrangement |
US12646731 |
2009-12-23 |
US20110148549A1 |
2011-06-23 |
Peter Kanschat; Uwe Wahl; Marcus Nuebling; Jens-Peer Stengl |
A signal transmission arrangement includes input terminals for receiving an input signal and output terminals for providing an output signal. A first transformer has a primary winding and a secondary winding, the primary winding being coupled to the input terminals. A second transformer has a primary winding and a secondary winding, the primary winding being coupled to the secondary winding of the first transformer, and the secondary winding being coupled to the output terminals. |