公开(公告)号：US12051978B2

公开(公告)日：2024-07-30

申请号：US17813366

申请日：2022-07-19

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Dushmantha Bandara Rajapaksha ,  Roland Sperlich ,  Anant Shankar Kamath ,  Vijayalakshmi Devarajan ,  Wesley Ray

IPC: H02M3/335 ,  H01F27/28 ,  H02M1/42 ,  H02M3/155 ,  H04L13/02 ,  H02M3/00

CPC classification number: H02M3/33523 ,  H01F27/288 ,  H02M1/4258 ,  H02M3/155 ,  H02M3/33569 ,  H02M3/33573 ,  H04L13/02 ,  H02M3/01

Abstract: A semiconductor package includes a transformer having a primary winding and a secondary winding. The primary winding has first and second terminals and a pair of taps. The secondary winding has first and second terminals and a pair of taps. The semiconductor package includes first and second data transfer circuits, a bridge, and a rectifier. The first data transfer circuit is coupled to the pair of taps of the primary winding. The second data transfer circuit is coupled to the pair of taps of the secondary winding. The bridge is coupled to the first and second terminals of the primary winding. The rectifier is coupled to the first and second terminals of the secondary winding.

公开(公告)号：US20240112849A1

公开(公告)日：2024-04-04

申请号：US18475559

申请日：2023-09-27

Applicant: ABB Schweiz AG

Inventor： Jedrzej Banaszczyk ,  Wojciech Piasecki ,  Michal Rzepecki ,  Filip Grecki ,  Uwe Drofenik

IPC: H01F27/28 ,  H01F27/32

CPC classification number: H01F27/2823 ,  H01F27/288 ,  H01F27/325

Abstract: A transformer coil comprises low and high voltage windings wound on a supporting construction and immersed in a main insulation material. The transformer coil has also a first barrier arranged proximate the low voltage winding and a second barrier arranged proximate the high voltage winding. Each of the first and second barriers is gas-tight and semiconductive so that gas bubbles potentially released during immersion in the main insulation material are unable to migrate to a high electric field region during the casting process or during apparatus operation.

公开(公告)号：US20230154674A1

公开(公告)日：2023-05-18

申请号：US17974434

申请日：2022-10-26

Applicant: Sehat Sutardja

Inventor： Sehat Sutardja

IPC: H01F27/36 ,  H03H7/38 ,  H01F27/28 ,  H01F17/00 ,  H01F19/04 ,  H01F27/32

CPC classification number: H01F27/363 ,  H03H7/38 ,  H01F27/2804 ,  H01F17/0013 ,  H01F19/04 ,  H01F27/32 ,  H01F27/36 ,  H01F27/288

Abstract: A transformer comprising a primary winding and a secondary winding. The primary winding has N2 number turns and having a first terminal and a second terminal. The secondary winding has having N1 fractional portions, which together form a full turn, are in close proximity to the primary winding to establish coupling between the primary winding and the N1 fractional coil portions, the transformer turn ratio from the primary winding to the secondary winding is N2:(N3/N1) where N2 is an integer equal to or greater than 1, N1 is an integer greater than or equal to 2, and N3 is an integer greater than or equal to 1. Also disclosed is a stacked integrated transformer having a primary winding and secondary winding of which one or both have a waterfall structure and a portion of which functions as a ground connected shield between the secondary winding and the primary winding.

公开(公告)号：US10074475B2

公开(公告)日：2018-09-11

申请号：US14654315

申请日：2013-12-18

Applicant: Robert Bosch GmbH

Inventor： Guenter Lohr ,  Dragan Krupezevic ,  Juergen Mack ,  Marcin Rejman

IPC: H01F27/36 ,  H01F38/12 ,  H01F27/28 ,  H02J50/70 ,  H02J50/10 ,  H01F38/14 ,  H02J7/02 ,  H01M10/44 ,  H02J5/00

CPC classification number: H01F27/288 ,  H01F27/2804 ,  H01F27/362 ,  H01F27/365 ,  H01F38/14 ,  H01M10/44 ,  H02J5/005 ,  H02J7/025 ,  H02J50/10 ,  H02J50/70

Abstract: An induction charging coil device is provided, in particular an induction charging coil device for a hand-held power tool, including at least one coil unit having at least one shielding unit, at least one core unit and at least one electronics unit and/or one cell unit to be shielded. It is provided that a projection area of the core unit, in the case of a projection in the direction of a winding axis of the coil unit, covers at least essentially the electronics unit and/or the cell unit to be shielded.

公开(公告)号：US20180241345A9

公开(公告)日：2018-08-23

申请号：US15653050

申请日：2017-07-18

Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.

Inventor： Lan-Chou Cho ,  Huan-Neng Chen ,  Chewn-Pu Jou ,  Feng Wei Kuo

IPC: H03B5/12 ,  H03L7/00 ,  H03B5/08 ,  H01F5/04 ,  H01F38/14 ,  H01F27/28 ,  H01F19/04

CPC classification number: H03B5/1243 ,  H01F5/04 ,  H01F19/04 ,  H01F27/2804 ,  H01F27/2871 ,  H01F27/288 ,  H01F38/14 ,  H03B5/08 ,  H03B5/1212 ,  H03B5/1228 ,  H03B5/1256 ,  H03B5/1296 ,  H03B2200/0074 ,  H03J2200/10 ,  H03K3/36 ,  H03K3/86 ,  H03L7/00 ,  H03L7/087 ,  H03L7/099 ,  H03L7/24

Abstract: A circuit includes a first digital controlled oscillator and a second digital controlled oscillator coupled to the first digital controlled oscillator. A skew detector is connected to determine a skew between outputs of the first digital controlled oscillator and the second digital controlled oscillator, and a decoder is utilized to output a control signal, based on the skew, to modify a frequency of the first digital controlled oscillator using a switched capacitor array to reduce or eliminate the skew. A differential pulse injection oscillator circuit and a pulse injection signal generator circuit are also provided,

公开(公告)号：US10002708B2

公开(公告)日：2018-06-19

申请号：US14661705

申请日：2015-03-18

Applicant: TDK CORPORATION

Inventor： Noritaka Chiyo ,  Tetsuya Nishiyama ,  Yasuhiro Terasaki ,  Mitsunari Suzuki

IPC: H01F27/42 ,  H01F38/14 ,  H02J50/70 ,  H02J50/40 ,  H02J50/10 ,  B60L11/18 ,  H02J5/00 ,  H02J7/02 ,  H01F27/28 ,  H01F27/34 ,  H01F27/36

CPC classification number: H01F38/14 ,  B60L53/12 ,  B60L53/30 ,  B60L2210/30 ,  B60L2210/40 ,  B60L2240/36 ,  H01F27/288 ,  H01F27/346 ,  H01F27/365 ,  H02J5/005 ,  H02J7/025 ,  H02J50/10 ,  H02J50/40 ,  H02J50/70 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T10/7241 ,  Y02T90/12 ,  Y02T90/121 ,  Y02T90/122 ,  Y02T90/127 ,  Y02T90/14

Abstract: A coil unit includes a non-magnetic conductive plate which is disposed in an arrangement direction of first and second coils have reverse winding direction to each other, and a magnetic body. The magnetic body includes a first portion which is positioned in an outer side than an outline of one side of the conductive plate in the arrangement direction of the first and second coils, and a second portion which is positioned in an outer side than an outline of the other side of the conductive plate in the arrangement direction of the first and second coils. When viewing from the arrangement direction of the first and second coils, the first and second portions are positioned on a side of the conductive plate where is opposite to a side which faces the first and second coils.

公开(公告)号：US09941047B2

公开(公告)日：2018-04-10

申请号：US15018099

申请日：2016-02-08

Applicant: Raytheon Company

Inventor： Joe A. Ortiz

IPC: H01F27/36 ,  H01F27/28 ,  H01F30/16 ,  H01F27/24

CPC classification number: H01F27/362 ,  H01F27/24 ,  H01F27/2847 ,  H01F27/288 ,  H01F30/16

Abstract: A shield for a toroidal transformer that includes a toroidal assembly that comprises a toroidal magnetic core and a first winding includes a sheet of flexible non-magnetic conductive material. The sheet of flexible non-magnetic conductive material comprises a trunk portion extending along a longest dimension of the sheet of flexible non-magnetic conductive material and configured to wrap along an outer dimension of the toroidal assembly, and a plurality of fingers extending outwardly from the trunk portion and configured to wrap around portions of the first winding along portions of sides of the toroidal assembly in a direction towards the center of the toroidal magnetic core and folding into an inner dimension of the toroidal assembly.

公开(公告)号：US20180090954A1

公开(公告)日：2018-03-29

申请号：US15699965

申请日：2017-09-08

Applicant: Apple Inc.

Inventor： Christopher S. Graham ,  Demetrios B. Karanikos ,  Darshan R. Kasar ,  Paul J. Thompson ,  Eric S. Jol ,  Grant S. Haug ,  Karl Ruben F. Larsson ,  Stefan A. Kowalski

IPC: H02J7/00 ,  H02J7/02 ,  H02J50/10 ,  H01F27/28

CPC classification number: H02J7/0042 ,  H01F27/288 ,  H01F27/325 ,  H02J5/005 ,  H02J7/025 ,  H02J50/10 ,  H02J50/40 ,  H02J50/60 ,  H02J50/70 ,  H04B5/0037 ,  H04B5/0075 ,  H04B5/0087 ,  H05K9/0007

Abstract: Embodiments describe a wireless charging device including a housing having a charging surface and first and second walls defining an interior cavity, and a transmitter coil arrangement disposed within the interior cavity and configured to generate a time-varying magnetic flux and an electric field during wireless power transfer, where each of the plurality of transmitter coils has a central axis positioned a lateral distance away from the central axes of all other transmitter coils of the plurality of transmitter coils. The wireless charging mat also includes an electromagnetic shield positioned between the transmitter coil arrangement and the first wall, an interconnection structure positioned within the interior cavity between the transmitter coil arrangement and the second wall, and a ferromagnetic shield positioned within the interior cavity between the transmitter coil arrangement and the interconnection structure, the ferromagnetic shield is configured to redirect the magnetic flux away from the interconnection structure.

公开(公告)号：US20170346444A1

公开(公告)日：2017-11-30

申请号：US15653050

申请日：2017-07-18

Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.

Inventor： Lan-Chou Cho ,  Huan-Neng Chen ,  Chewn-Pu Jou ,  Feng Wei Kuo

IPC: H03B5/12 ,  H03B5/08 ,  H01F19/04 ,  H01F38/14 ,  H01F27/28 ,  H03L7/00 ,  H01F5/04

CPC classification number: H03B5/1243 ,  H01F5/04 ,  H01F19/04 ,  H01F27/2804 ,  H01F27/2871 ,  H01F27/288 ,  H01F38/14 ,  H03B5/08 ,  H03B5/1212 ,  H03B5/1228 ,  H03B5/1256 ,  H03B5/1296 ,  H03B2200/0074 ,  H03J2200/10 ,  H03K3/36 ,  H03K3/86 ,  H03L7/00 ,  H03L7/087 ,  H03L7/099 ,  H03L7/24

Abstract: A circuit includes a first digital controlled oscillator and a second digital controlled oscillator coupled to the first digital controlled oscillator. A skew detector is connected to determine a skew between outputs of the first digital controlled oscillator and the second digital controlled oscillator, and a decoder is utilized to output a control signal, based on the skew, to modify a frequency of the first digital controlled oscillator using a switched capacitor array to reduce or eliminate the skew. A differential pulse injection oscillator circuit and a pulse injection signal generator circuit are also provided,

公开(公告)号：US20170104459A1

公开(公告)日：2017-04-13

申请号：US14880631

申请日：2015-10-12

Applicant: QUALCOMM Incorporated

Inventor： Victor Korol ,  Mina Iskander

IPC: H03F1/56 ,  H03F3/21 ,  H03F3/193 ,  H01F27/28 ,  H03H7/38

CPC classification number: H03F1/565 ,  H01F17/0013 ,  H01F27/288 ,  H01F27/32 ,  H01F27/36 ,  H01F2017/008 ,  H03F3/193 ,  H03F3/211 ,  H03F2200/451 ,  H03F2203/21106 ,  H03H7/38

Abstract: Exemplary embodiments of the present disclosure are related to inductor shielding. A device may include an inductor and a plurality of conductive strips extending across the inductor. At least a first conductive strip of the plurality of conductive strips is physically isolated from at least a second conductive strip of the plurality of conductive strips in a region of overlay of the first and second conductive strips.