Smoothing Type (e.g., Direct Current Power Supply Filters Or Decoupling Filters) Patents (Class 333/181)
  • Patent number: 11373792
    Abstract: An inductor according to one embodiment of the present invention comprised: a magnetic core; and a coil wound around the magnetic core, wherein the magnetic core includes a plurality of stacked sub-magnetic cores, each sub-magnetic core includes a first magnetic body and a second magnetic body, the first magnetic body and the second magnetic core are different materials, the second magnetic body is arranged on a surface of the first magnetic body, each sub-magnetic core has a toroidal shape, and a permeability of the first magnetic body differs from a permeability of the second magnetic body.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: June 28, 2022
    Assignee: LG Innotek Co., Ltd.
    Inventors: Mi Jin Lee, Yu Seon Kim, Seok Bae, Ji Yeon Song, Sang Won Lee, Jong Wook Lim
  • Patent number: 11342896
    Abstract: The present invention includes a method for creating a system in a package with integrated lumped element devices is system-in-package (SiP) or in photo-definable glass, comprising: masking a design layout comprising one or more electrical components on or in a photosensitive glass substrate; activating the photosensitive glass substrate, heating and cooling to make the crystalline material to form a glass-crystalline substrate; etching the glass-crystalline substrate; and depositing, growing, or selectively etching a seed layer on a surface of the glass-crystalline substrate on the surface of the photodefinable glass, wherein the integrated lumped element devices reduces the parasitic noise and losses by at least 25% from a package lumped element device mount to a system-in-package (SiP) in or on photo-definable glass when compared to an equivalent surface mounted device.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: May 24, 2022
    Assignee: 3D Glass Solutions, Inc.
    Inventors: Jeb H. Flemming, Jeff A. Bullington, Kyle McWethy
  • Patent number: 11290079
    Abstract: A device for filtering at least one signal has a first magnet core and at least one first coil. The first coil has a first coil connection, a second coil connection, a first coil element, a second coil element and a connecting section. The first coil connection is electrically connected to the second coil connection via the first coil element, the connecting section and the second coil element. The first coil element has a first coil axis and the second coil element has a second coil axis. The first coil axis and second coil axis are arranged parallel to and at a distance from one another. The first magnet core extends both through the first coil element and also through the second coil element.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: March 29, 2022
    Inventors: Daniel Spesser, Tim Pfizenmaier, Florian Mayer
  • Patent number: 11271537
    Abstract: An interface circuit, comprising: a signal line having signal, auxiliary and connection nodes defined therealong, the connection node for connection to a transmission line; signal-handling circuitry connected to the signal line at the signal node; an auxiliary circuit connected to the signal line at the auxiliary node; a signal pair of inductors connected in series along the signal line adjacent to and either side of the signal node; and an auxiliary pair of inductors connected in series along the signal line adjacent to and either side of the auxiliary node, wherein: the signal pair of inductors are configured to have a mutual coupling defined by a coupling coefficient kS; the auxillary pair of inductors are configured to have a mutual coupling defined by a coupling coefficient kA; and kS has a positive value and kA has a negative value.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: March 8, 2022
    Assignee: SOCIONEXT INC.
    Inventors: Atheer Sami Barghouthi, Saul Darzy
  • Patent number: 11232898
    Abstract: A 0.5-displacement region in which a first wire and a second wire are displaced by 0.5 turns from each other, and a 1.5-displacement region in which the first wire and the second wire are displaced by 1.5 turns in an opposite direction to a 0.5-displacement region are distributed along an axis direction on a winding core portion. The sum of the number of turns of the second wire located in the 0.5-displacement region being twice or more and five times or less than the sum of the number of turns of the second wire located in the 1.5-displacement region.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: January 25, 2022
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Masashi Miyamoto, Shigeto Yamamoto, Kentaro Yamaguchi
  • Patent number: 11206006
    Abstract: A trifilar transformer comprising: a first winding; a second winding; and a third winding, wherein one winding is mutually coupled to each of the other two windings, and wherein said other two windings are substantially not coupled to each other. At least one of the first winding, the second winding and the third winding may comprise a figure-of-eight winding, e.g. a clockwise loop and an anti-clockwise loop. In some embodiments, the trifilar transformer may comprise: a first winding; a second winding concentric or interwound with the first winding; and a third winding formed from a first winding part in series with a second winding part, the first winding part having a shape corresponding to the first winding and the second winding part having a shape corresponding to the second winding.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: December 21, 2021
    Assignee: Novelda AS
    Inventor: Sumit Bagga
  • Patent number: 11184973
    Abstract: Disclosed is a printed circuit board comprising: an integrated circuit (IC) mounted on a board plane; a power supply provided on the board plane and connected to an external power source to supply necessary power to the IC; a power plane provided in the board plane and configured to provide a main path for supplying the power from the power supply to the IC; a ground plane provided in the board plane and configured to provide a ground path corresponding to the power plane; a body mounted on the board plane by surface mount technology (SMT) and formed of an insulating material; and a conductive member disposed on the body and having one end connected to the power supply and another end connected to the IC to provide an additional power supply path in parallel with the power plane.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: November 23, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Hoon Hwangbo
  • Patent number: 11177741
    Abstract: An AC-AC converter circuit converts an AC voltage into a further AC voltage. A rectifier circuit rectifies the AC voltage. An inverter circuit generates the further AC voltage. AZ source circuit is provided between the rectifier circuit and the inverter circuit.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: November 16, 2021
    Assignee: NABTESCO CORPORATION
    Inventors: Yasuo Ono, Kazuhito Nakamura, Michael Haider, Dominik Bortis, Johann W. Kolar
  • Patent number: 11128276
    Abstract: A noise filter includes a filter circuit including a noise reduction element that reduces a noise component, a conductive first circuit connection member to which a first connection portion of the noise reduction element is electrically connected, and a conductive second circuit connection member to which a second connection portion of the noise reduction element is electrically connected, a first electric connection structure that electrically connects an intermediate connection portion of a core wire of a first electric wire to the first circuit connection member, and a second electric connection structure that electrically connects an intermediate connection portion of a core wire of a second electric wire whose one end is grounded, to the second circuit connection member.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: September 21, 2021
    Assignee: YAZAKI CORPORATION
    Inventors: Masashi Tsukamoto, Kunihiko Yamada, Ryoma Toyoda, Keigo Tsubo
  • Patent number: 11121692
    Abstract: An input loop line (5) is disposed in a region inside or outside the loop of an output loop line (9) as viewed in the thickness direction of a dielectric layer (2).
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: September 14, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Satoshi Yoneda
  • Patent number: 11101064
    Abstract: A pulse transformer includes a drum core having a winding core, a first flange provided at one end of the winding core in a first direction, and a second flange provided at the other end of the winding core in the first direction. The pulse transformer also includes a plurality of the first electrodes provided in the first flange and arranged in a second direction substantially perpendicular to the first direction, a plurality of second electrodes provided in the second flange and arranged in the second direction, and a plurality of wires wound around the winding core. A length of the pulse transformer in the first and second directions are substantially equal, and a length of the pulse transformer in a third direction substantially perpendicular to the first and second directions is smaller than the length of the pulse transformer in the first and second directions.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: August 24, 2021
    Assignee: TDK CORPORATION
    Inventors: Nobuo Takagi, Setu Tsuchida, Tasuku Mikogami
  • Patent number: 11087918
    Abstract: A 0.5-displacement region in which a first wire and a second wire are displaced by 0.5 turns from each other, and a 1.5-displacement region in which the first wire and the second wire are displaced by 1.5 turns in an opposite direction to a 0.5-displacement region are distributed along an axis direction on a winding core portion. The sum of the number of turns of the second wire located in the 0.5-displacement region being twice or more and five times or less than the sum of the number of turns of the second wire located in the 1.5-displacement region.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: August 10, 2021
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Masashi Miyamoto, Shigeto Yamamoto, Kentaro Yamaguchi
  • Patent number: 11025219
    Abstract: A filtering circuit includes at least two common-mode filters that are electrically coupled in series and magnetically coupled. The first common-mode filter includes first and second spiral inductors that are positively magnetically coupled and electrically isolated from each other. The second common-mode filter includes third and fourth spiral inductors that are positively magnetically coupled and electrically isolated from each other. The first and third spiral inductors are electrically connected in series and negatively magnetically coupled. Likewise, the second and fourth spiral inductors are electrically connected in series and negatively magnetically coupled.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: June 1, 2021
    Assignee: STMicroelectronics (Tours) SAS
    Inventor: Joel Concord
  • Patent number: 10848119
    Abstract: An element body includes a first function portion including a first material, a second function portion including a second material different from the first material, and an intermediate portion placed between the first function portion and the second function portion. The intermediate portion includes a first component included in the first material, and a second component included in the second material. A side surface of the element body includes surfaces of the first function portion, the second function portion, and the intermediate portion. Each of terminal electrodes includes electrode portion formed on the side surface across the surfaces of the first function portion, the second function portion, and the intermediate portion. An insulating layer is formed on the side surface in such a manner as to be in contact with at least a region exposed from the electrode portions between the electrode portions in the surface of the intermediate portion.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: November 24, 2020
    Assignee: TDK CORPORATION
    Inventors: Akihiko Oide, Yoji Tozawa, Seiichi Nakagawa, Shinichi Kondo, Takashi Endo, Makoto Yoshino, Noriaki Hamachi
  • Patent number: 10838547
    Abstract: An input device comprises a plurality of sensor electrodes and a processing system coupled to the plurality of sensor electrodes. The processing system comprises a sensor driver. The sensor driver comprises clock synchronization circuitry, a blocking pulse generator, and a sensor module. The clock synchronization circuitry is configured to receive an external clock signal, and synchronize an internal clock signal with the external clock signal. The blocking pulse generator is configured to generate a first blocking pulse based on the internal clock signal. The sensor module comprises sensing circuitry and is configured to pause acquisition of a resulting signal from a sensor electrode based on the first blocking pulse.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: November 17, 2020
    Assignee: SYNAPTICS INCORPORATED
    Inventors: Guozhong Shen, Xiaodan Mei, Yongqian Tang, Ozan Ersan Erdogan, Joseph Kurth Reynolds
  • Patent number: 10784031
    Abstract: A filter component assembly kit includes a bobbin that is configured with first and second members and a core that is in a quadrangular frame shape. When the first member is assembled with the second member, a through hole is formed in the bobbin. The through hole extends in a first direction. The core is configured with first and second extension bars. The first and second extension bars extend in parallel in the first direction. When the first extension bar is disposed in the through hole of the bobbin, rotation of the core around the first extension bar is prevented. First allowance of the first extension bar in a second direction, which is perpendicular to the first direction, in the through hole is larger than second allowance of the first extension bar in a third direction, which is perpendicular to the first and second directions, in the through hole.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: September 22, 2020
    Assignee: SUMIDA CORPORATION
    Inventors: Naoki Sasaki, Jiayu Chen
  • Patent number: 10778177
    Abstract: A common mode noise filter includes a laminated body including first to fourth insulating layers stacked on one another, first to fourth coil conductors spirally extending and disposed on upper surfaces of the first to fourth insulating layers, respectively, a first via-electrode connecting the first coil conductor to the second coil conductor, a second via-electrode connecting the third coil conductor to the fourth coil conductor, first and second connection parts connecting the first via-electrode to first and second inner ends of the first and second coil conductors, respectively, and third and fourth connection parts connecting the second via-electrode to third and fourth inner ends of the third and fourth coil conductors, respectively. The first connection part overlaps the second connection part when viewed from above. The third connection part overlaps the fourth connection part when viewed from above. The common mode noise filter is operable in high frequencies.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: September 15, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yoshiharu Oomori, Kenichi Matsushima, Takeshi Ichihara
  • Patent number: 10665378
    Abstract: Embodiments described herein provide circuitry employing an inductor having enhanced circuit area usage. The circuitry includes an inductor having a first loop and a second loop adjoining the first loop to form a figure-eight configuration. The circuitry further includes a circuit component disposed at least partially inside an area defined by at least one of the first loop and the second loop. The inductor has an intersection portion between the first loop and the second loop. An input node is located proximate to the intersection portion, the input node having a first extension disposed inside the first loop. An output node is located proximate to the intersection portion. The output node has a second extension disposed inside the second loop. At least a first capacitor is coupled to the input node and the second extension, and at least a second capacitor coupled to the output node and the first extension.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: May 26, 2020
    Assignee: Marvell International Ltd.
    Inventors: Cao-Thong Tu, Konstantinos Manetakis, Xiang Gao
  • Patent number: 10644588
    Abstract: The invention which relates to an EMC filter for the suppression of interference signals addresses the problem of specifying a solution with which reworking expenditures of an inverter board are reduced and, additionally, installation space restriction as well as reduction of development and production costs are attained. This problem is resolved thereby that in an EMC filter module at least one core of a choke with a winding is disposed on a first mounting board, that at least one of the capacitors is disposed on the first mounting board, that the first mounting board comprises at least two contact means and that the first mounting board of the EMC filter module is disposed with its contact means on a main board of an inverter and is electrically connected thereto.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: May 5, 2020
    Assignee: HANON SYSTEMS
    Inventors: Stephan Werker, Holger Gerberich, Thomas Büth, Nikolaus Boschmann
  • Patent number: 10525690
    Abstract: A method of manufacturing an inductor core includes controlling a flow of magnetic material and a flow of binder material to a nozzle such that the flow magnetic material merges with the flow of binder material at a focal point of a preheater, preheating the magnetic material and the binder material by energizing the preheater, mixing the magnetic material and the binder material according to a ratio based on a magnetic permeability distribution of the inductor core, and depositing the magnetic material and the binder material on a surface to form the inductor core having three layers with recessed patterns defined between the layers for receiving a coil.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: January 7, 2020
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Ruxi Wang, Manoj Ramprasad Shah, Ramanujam Ramabhadran, Yanzhe Yang
  • Patent number: 10499229
    Abstract: Techniques are disclosed for increasing the reliability of transferring data via in-band signaling in a audio channel of a communication network. Techniques include causing an audio decoding process to modify the decoding of audio signals for the audio channel based on obtaining an indication of in-band signaling. The modified decoding may replace an adaptive de-jitter buffer by a static de-jitter buffer or increase the buffering time of an adaptive de jitter buffer. The decoded audio signals may be provided to an in-band message detector, an audio encoder or an audio playback device based on the indication of in-band signaling. The techniques may be employed by a user equipment, a media gateway control function or a media gateway to improve the reliability of in-band transfer of a minimum set of data (MSD) for a Next Generation eCall.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: December 3, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Stephen William Edge, Nikolai Leung
  • Patent number: 10491180
    Abstract: A board-type noise filter having higher noise removal performance than that of a conventional noise filter, and an electronic device including the board-type noise filter are provided. The board-type noise filter includes: a printed wiring board having a wiring pattern formed thereon; a choke coil including a core having a toroidal shape; a frame ground portion fixed to the printed wiring board at a position overlapping with a hollow portion of the choke coil when the toroidal shape of the choke coil is seen in plan view, the frame ground portion being capable of being grounded to a frame ground; and a capacitor having a first terminal connected to the frame ground portion through the wiring pattern.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: November 26, 2019
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kazuya Yamamoto, Takashi Kumagai
  • Patent number: 10432161
    Abstract: A band-pass filter includes a main body formed of a dielectric, a plurality of resonators, a shield, and a partition formed of a conductor. Each of the plurality of resonators includes a resonator conductor portion. The resonator conductor portion has a first end and a second end opposite to each other in the longitudinal direction. The first end is connected to a ground, and the second end is open. The partition extends to pass through between the respective resonator conductor portions of two resonators, and is electrically connected to the shield.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: October 1, 2019
    Assignee: TDK CORPORATION
    Inventors: Yuta Ashida, Naoki Sotoma, Shigemitsu Tomaki, Yasuyuki Hiwatashi
  • Patent number: 10404229
    Abstract: An EMI filtering, coaxial power connector may be formed as an inline component or a port of a device. The connector may have dimensions to accept F-type coaxial connectors. The connector includes a conductive outer shell with a first opening and a second opening. A dielectric member is disposed within the shell. A conductive pin is supported by the dielectric member. A feed-through capacitor has a central opening and a first lead formed within the central opening. The pin is electrically connected to the first lead. A second lead of the capacitor is formed at an outer perimeter of the capacitor and is electrically connected to the shell. A metal plate is mounted within the shell. The plate is disk-shaped with a central hole. An outer perimeter of the plate is in electrical contact with the shell. The pin passes through the central hole without making electrical contact with the plate, and the plate resides between the second opening of the shell and the capacitor.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: September 3, 2019
    Assignee: CommScope Technologies LLC
    Inventors: Shi Man Li, Chi Tsung Yang, Chien Chung Lee
  • Patent number: 10389328
    Abstract: Disclosed herein is a differential mode filter that includes first and second terminal electrodes provided on a first flange part of a core, and first and second wires wound around a winding core part of the core in an opposite direction to each other and connected respectively to the first and second terminal electrodes. The first and second wires cross each other on the winding core part to form a plurality of crossing portions that include first, second, and third crossing portions that are first, second, and third occurrences counting from the one end of the first and second wires, respectively. A first crossing angle between the first and second wires at the first crossing portion is larger than at least one of second and third crossing angles between the first and second wires at the second and third portions, respectively.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: August 20, 2019
    Assignee: TDK CORPORATION
    Inventors: Tsutomu Kobayashi, Toshio Tomonari, Emi Ito, Yuma Komaya
  • Patent number: 10366822
    Abstract: A method of manufacturing a winged coil structure is provided. The method includes preparing an upper flexible plate having a middle region and two side regions bordering the middle region; preparing a dielectric layer with a lateral size of the dielectric layer being the same as a lateral size of the middle region of the upper flexible plate; preparing a lower flexible plate having a middle region and two side regions bordering the middle region; preparing a bottom flexible plate attached to the lower surface of the lower flexible plate to form a stack body; and performing a process of thermal pressing to sequentially from bottom to top stack and combine the stack body, the dielectric layer, and the upper flexible plate as a multiple layered stack structure via a press mold.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: July 30, 2019
    Assignee: KINSUS INTERCONNECT TECHNOLOGY CORP.
    Inventors: Ting-Hao Lin, Chiao-Cheng Chang, Yi-Nong Lin
  • Patent number: 10305441
    Abstract: A common mode noise filter includes first to fourth insulator layers stacked in a stacking direction and first to third coils provided on the first to fourth insulator layers independently of one another. The first coil includes a first coil conductor provided on the first insulator layer and a second coil conductor provided on the fourth insulator layer and connected to the first coil conductor. The second coil is provided on the second insulator layer. The third coil is provided on the third insulator layer. The first coil conductor overlaps the second coil viewing from above. At least a part of the second coil overlaps at least a part of the third coil viewing from above. The second coil conductor overlaps the third coil viewing from above.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: May 28, 2019
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yoshiharu Omori, Kenichi Matsushima, Masakatsu Nawate, Ryohei Harada, Kenji Ueno
  • Patent number: 10256030
    Abstract: A winged coil structure and a method of manufacturing the same are disclosed. The winged coil structure includes an upper flexible plate, at least one upper magnetic induction coil, at least one upper connection pad, a lower flexible plate, at least one lower magnetic induction coil, at least one lower connection pad, at least one gold finger, a dielectric layer and at least one connection plug. The connection plug connects the upper connection pad and the lower connection pad through thermal pressing such that the gold finger, the upper magnetic induction coil, the upper connection pad, the lower connection pad, the connection plug, the lower connection pad and the lower magnetic induction coil are electrically connected. The upper flexible plate is provided with notched lines to be easily bent without damage to the upper and lower magnetic induction coils. Thus, a bendable feature for magnetic induction coils is provided.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: April 9, 2019
    Assignee: KINSUS INTERCONNECT TECHNOLOGY CORP.
    Inventors: Ting-Hao Lin, Chiao-Cheng Chang, Yi-Nong Lin
  • Patent number: 10229785
    Abstract: An improved capacitor utilizing stacked MLCC's is provided. The capacitor comprising at least one MLCC sandwiched between a first lead and a second lead. Each lead comprises at least one integral lead crimp.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: March 12, 2019
    Assignee: KEMET Electronics Corporation
    Inventors: John E. McConnell, Alan P. Webster, Lonnie G. Jones, Garry L. Renner, Jeffrey W. Bell
  • Patent number: 10230296
    Abstract: Systems and methods for reducing low frequency (e.g., 100 Hz, 120 Hz) output ripple of a power converter which receives input power from an AC power source (e.g., AC mains). An output ripple reduction circuit is provided which is electrically coupled between an output of a power converter and a load (e.g., one or more LEDs). The output ripple reduction circuit comprises a transformer having a first winding and a second winding each wrapped around a core. The first winding has a first terminal electrically coupled to an output of the power converter and a second terminal coupled to a capacitor to form a first LC circuit. The second winding has a first terminal electrically coupled to a load and a second terminal coupled to the capacitor to form a second LC circuit.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: March 12, 2019
    Assignee: EXPRESS IMAGING SYSTEMS, LLC
    Inventor: William G. Reed
  • Patent number: 10218259
    Abstract: In a power converter having a semiconductor switch, common-mode noise is effectively reduced by setting the common-mode inductance value of reactors which are inserted into both lines such that the resonance frequency of the combined capacity of a line-to-ground bypass capacitor and the reactors which are inserted into both lines becomes a predetermined value or more.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: February 26, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tetsuro Fujiwara, Keita Takahashi
  • Patent number: 10210986
    Abstract: An inductor includes a magnetic core lying in a core plane. The magnetic core includes a vertical laminated structure with respect to the core plane of alternating ferromagnetic vertical layers and insulator vertical layers. An easy axis of magnetization can be permanently or semi-permanently fixed in the ferromagnetic vertical layers along an axis orthogonal to the core plane. Methods of manufacturing same are also disclosed.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: February 19, 2019
    Assignee: Ferric, Inc.
    Inventors: Noah Sturcken, Ryan Davies, Hao Wu, Michael Lekas
  • Patent number: 10205429
    Abstract: An object is to provide an output-noise reduction device that can prevent noise from an electronic device accommodated in a metal casing from being transmitted due to electromagnetic coupling. An output voltage is extracted to the outside through a conducting bar. A magnetic body core includes a through hole through which the conducting bar is inserted. A chip capacitor is mounted on a mounting board and connects between the output terminal VO and ground potential. A section from the output terminal VO to at least part of the chip capacitor mounted on the mounting board is isolated from the electromagnetic coupling from the electronic device. Thus, noise is prevented from being transmitted to the output terminal VO.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: February 12, 2019
    Assignee: KITAGAWA INDUSTRIES CO., LTD.
    Inventors: Tomokazu Tanimizu, Kazushige Ueno, Katsuyuki Morita, Yoshinori Ohashi
  • Patent number: 10200005
    Abstract: An object is to provide an output-noise reduction device in which a component encapsulated through insert molding can be appropriately protected. In a noise filter module (output-noise reduction device), a conducting bar and a magnetic body core are protected with a molded member formed through insert molding. The molded member is formed of a resin material with a molding shrinkage rate of 0.5% or less. Thus, the amount of shrinkage after the molded member is molded and stress as a result of the shrinkage can be made small, whereby damage on the magnetic body core, deformation of a lead frame, and the like can be prevented from occurring.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: February 5, 2019
    Assignee: KITAGAWA INDUSTRIES CO., LTD.
    Inventors: Tomokazu Tanimizu, Kazushige Ueno, Katsuyuki Morita
  • Patent number: 10192676
    Abstract: A noise filter includes a plurality of inductor elements connected with one another in series. The inductor element includes a ring-shaped magnetic core, a winding wound around the magnetic core, and a ground terminal disposed between the magnetic core and the winding, the ground terminal being connected to a ground. The ground terminal includes a conductive part that surrounds at least a part of an outer periphery of the magnetic core.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: January 29, 2019
    Assignee: NEC TOKIN CORPORATION
    Inventor: Yusuke Ohdaira
  • Patent number: 10134529
    Abstract: A composite electronic component includes an electronic element mounted on a resistance element in a height direction. The electronic element includes an electronic element body, and first and second external electrodes separated from each other in a length direction. The resistance element includes a base portion, a resistor disposed on an upper surface of the base portion, and first and second upper surface conductors on the upper surface of the base portion. The first and second upper surface conductors are separated from each other in the length direction, and the resistor is located between the first and second upper surface conductors. A dimension in the height direction of the resistor is smaller than both a dimension in the height direction of the first external electrode of a portion located on a lower surface of the electronic element body, and a dimension in the height direction of the second external electrode of a portion located on a lower surface of the electronic element body.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: November 20, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Kazuo Hattori, Isamu Fujimoto, Shinichiro Kuroiwa
  • Patent number: 10115516
    Abstract: The present invention relates to a planar inductor for progressive case hardening, comprising a carrier and an induction coil, which is accommodated by the carrier and exposed on a first side of the carrier and which is in the form of a conductor loop. According to the invention, the inductor comprises two spacing elements, which are space apart from one another and inserted into the carrier and which protrude from the carrier and beyond the conductor loop on the first side. The invention further relates to a preferred method for producing the planar inductor.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: October 30, 2018
    Assignee: THYSSENKRUPP ROTHE ERDE GMBH
    Inventors: Marco Burtchen, Mathieu Raymond Karl Langels
  • Patent number: 10042133
    Abstract: A first conductive layer includes a first signal wiring including, at a position except for an end portion, a wide portion having a width wider than that of the other portion. A second conductive layer includes a signal electrode electrically continuous with the end portion of the first signal wiring, a first ground plane overlapping the wide portion, and a ground terminal. A third conductive layer includes a second signal wiring including an end portion overlapping and bonded to the signal electrode, and a ground electrode overlapping and bonded to the ground terminal. A fourth conductive layer includes a second ground plane. The second ground plane includes a through hole overlapping the end portion of the second signal wiring. A fifth conductive layer includes a third groundplane. The third groundplane overlaps the end portion of the second signal wiring inside the through hole.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: August 7, 2018
    Assignee: Oclaro Japan, Inc.
    Inventors: Daisuke Noguchi, Sachiko Mizuseki, Norimichi Shibuya, Hiroshi Yamamoto
  • Patent number: 9978508
    Abstract: A surface mount swing-type inductor component is configured to establish a non-uniform gap when assembled. The non-uniform gap produces swing-type inductor functionality in a compact package for higher current applications while being manufacturable at relatively low cost.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: May 22, 2018
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventors: Yipeng Yan, Robert James Bogert
  • Patent number: 9960700
    Abstract: In an electronic apparatus, a case houses an electronic apparatus main body and is electrically conductive. A terminal block is attached to a case wall of the case. In the terminal block, a main body portion is composed of an insulating material. An external terminal is inserted into a through-hole formed in the case wall, and is connected to the electronic apparatus main body. A capacitor is disposed inside the main body portion. An elastic member is disposed inside the main body portion, is composed of a conductive material, is interposed at least one of between the capacitor and the external terminal, and between the capacitor and the case wall, and fixes the capacitor inside the main body portion by pressing the capacitor. The capacitor and the elastic member configure a filter circuit that allows a noise current included in the external terminal to flow to the case wall.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: May 1, 2018
    Assignee: DENSO CORPORATION
    Inventor: Keiichi Ando
  • Patent number: 9948265
    Abstract: An inductor capacitor (LC) tank includes a first inductor and a first tunable capacitive array. The first inductor has a first terminal and a second terminal, and the first tunable capacitive array has a first terminal and a second terminal. The first tunable capacitive array is at a path branching from a first point between the first terminal and the second terminal of the first inductor, the first terminal of the first tunable capacitive array is coupled to the first point, and the second terminal of the first tunable capacitive array and the second terminal of the first inductor are coupled to a reference voltage.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: April 17, 2018
    Assignee: MEDIATEK INC.
    Inventors: Kun-Yin Wang, Wei-Hao Chiu, Ang-Sheng Lin
  • Patent number: 9935457
    Abstract: Various arrangements for mitigating voltage droop in a direct current circuit configured to power multiple capacitive loads are presented. A voltage source configured to output a direct current voltage to power the multiple capacitive loads may be present. First and second outputs electrically coupled with the voltage source such that the outputs, when electrically coupled with capacitive loads, provide a voltage to the capacitive load may be provided. A transformer module (which may include a transformer and an impedance) electrically coupled with the first output and the second output may also be provided. When the first capacitive load is electrically coupled with the first output, the transformer may be configured to mitigate droop of the first voltage to the first output upon the second capacitive load being connected to the second output and receiving inrush current.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: April 3, 2018
    Assignee: Echostar Technologies L.L.C.
    Inventor: John Nicholas Brooksbank
  • Patent number: 9906200
    Abstract: A power filter is provided, including a circuit board module, an insulating base, several connect terminals, and an inductor. The circuit board module includes a circuit board and several electronic components, wherein the circuit board forms several connect holes thereon and the electronic components are electrically connected to the circuit board. The connect terminals are fixed on the insulating base and each has a connecting part and a clamping part, wherein the connecting parts are joined with the connect holes of the circuit board. The inductor includes at least one wire with both terminals clamped by the clamping parts, and the wire is electrically connected to the circuit board module through the connecting parts.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: February 27, 2018
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Shin-Chih Hsieh, Po-Jen Tsai, Chia-Chi Hsieh
  • Patent number: 9882542
    Abstract: In a filter component with improved attenuation characteristics for common mode noise, an LC series resonance circuit disposed in each of a plurality of shunt circuits is connected at a first end to a first line and is grounded at a second end. The LC series resonance circuit disposed in each of the shunt circuits is grounded at a first end and is connected at a second end to a second line. With this configuration, the LC series resonance circuits resonate reliably so as to define attenuation poles. Accordingly, the resonant frequency of each of the LC series resonance circuits is set to be a frequency that effectively attenuates common mode noise.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: January 30, 2018
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Masahiro Teramoto
  • Patent number: 9847165
    Abstract: A winged coil structure and a method of manufacturing the same are disclosed. The winged coil structure includes an upper flexible plate, at least one upper magnetic induction coil, at least one upper connection pad, a lower flexible plate, at least one lower magnetic induction coil, at least one lower connection pad, at least one gold finger, a dielectric layer and at least one connection plug. The connection plug connects the upper connection pad and the lower connection pad through thermal pressing such that the gold finger, the upper magnetic induction coil, the upper connection pad, the lower connection pad, the connection plug, the lower connection pad and the lower magnetic induction coil are electrically connected. The upper flexible plate is provided with notched lines to be easily bent without damage to the upper and lower magnetic induction coils. Thus, a bendable feature for magnetic induction coils is provided.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: December 19, 2017
    Assignee: KINSUS INTERCONNECT TECHNOLOGY CORP.
    Inventors: Ting-Hao Lin, Chiao-Cheng Chang, Yi-Nong Lin
  • Patent number: 9793039
    Abstract: An inductor has a substrate and at least one coil of carbon nanotubes. A trench is formed in the substrate, and the carbon nanotubes are grown in the trench in order to form a coil for the inductor. In some embodiments, multiple coils may be formed in the trench as may be desired.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: October 17, 2017
    Assignee: The Board of Trustees of the University of Alabama
    Inventor: Jaber A. Abu Qahouq
  • Patent number: 9780754
    Abstract: The branch portion includes: a first circuit portion electrically connected to the main wire while extending to a leading end from a base end of the branch portion; a second circuit portion electrically connected to the main wire while extending to the leading end from the base end of the branch portion and electrically connected to the first circuit portion at the leading end of the branch portion; and a ground conductor that is disposed between the first circuit portion and the second circuit portion while extending to the leading end from the base end of the branch portion and has one end to be grounded and the other end to be opened.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: October 3, 2017
    Assignee: Yazaki Corporation
    Inventor: Kunihiko Yamada
  • Patent number: 9761369
    Abstract: A coil has multiple coil sections connected to each other and each coil section includes a body portion and at least one direct or protrusive connecting portion disposed at one end of the body portion. Coil sections form at least one spiral path around the central axis of the coil, and on the projection of the coil along the central axis. The protrusive connecting portions protrude out of the path location of the direct connecting portions. Two connected coil sections form only one overlapped surface at the coupled parts of the direct or protrusive connecting portions. Regarding to the body portions in the same spiral path, a first end of one body portion is indirectly connected and disposed adjacent to a second end of another body portion. The second end has one surface with a virtual extension reaching the first end.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: September 12, 2017
    Inventor: Ghing-Hsin Dien
  • Patent number: 9722417
    Abstract: A transmission circuit including four transmission component sets for Ethernet is provided. For each of the transmission component sets, a first capacitor and a first inductor are cascaded, the first inductor is coupled to the Ethernet connector via the first transmission line (TL), the first capacitor is coupled to the Ethernet chip via the second TL; a second capacitor and a second inductor are cascaded, the second inductor is coupled to the Ethernet connector via the third TL, the second capacitor is coupled to the Ethernet chip via the fourth TL; a first component set is coupled between a first contact and a second contact, the first contact is located between the first capacitor and the first inductor, and the second contact is located between the second capacitor and the second inductor; and a second component set is coupled between the second TL and the fourth TL.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: August 1, 2017
    Assignee: NLIGHTNING TECHNOLOGY LTD.
    Inventors: Kun Tsen Lin, Shih Peng Wu
  • Patent number: 9692385
    Abstract: Provided is a noise reduction device including: a conductive bar of conductive material; a metal tubular portion with a through hole having the conductive bar penetrating therethrough and accommodating a magnetic material core and a substrate therein; a capacitor mounted on the substrate and having a first terminal connected to the conductive bar and a second terminal connected to an inner wall of the through hole; and a blocking unit blocking an opening of the through hole so as to affix the conductive bar with respect to the metal housing and the tubular portion. The tubular portion includes an outer peripheral surface having a threaded engagement part threadedly engaged with the metal housing; and the conductive bar has an outer end that functions as an output terminal.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: June 27, 2017
    Assignee: KITAGAWA INDUSTRIES CO., LTD.
    Inventors: Yuya Okada, Kazushige Ueno