JP2013521700A - 電流センサを用いた平面オーディオ増幅器出力インダクタ - Google Patents
電流センサを用いた平面オーディオ増幅器出力インダクタ Download PDFInfo
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- JP2013521700A JP2013521700A JP2012556088A JP2012556088A JP2013521700A JP 2013521700 A JP2013521700 A JP 2013521700A JP 2012556088 A JP2012556088 A JP 2012556088A JP 2012556088 A JP2012556088 A JP 2012556088A JP 2013521700 A JP2013521700 A JP 2013521700A
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- 238000004804 winding Methods 0.000 claims abstract description 50
- 230000008878 coupling Effects 0.000 claims description 22
- 238000010168 coupling process Methods 0.000 claims description 22
- 238000005859 coupling reaction Methods 0.000 claims description 22
- 229910000859 α-Fe Inorganic materials 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 8
- 230000035699 permeability Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 239000003989 dielectric material Substances 0.000 claims description 2
- 239000003990 capacitor Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 7
- 230000003071 parasitic effect Effects 0.000 description 6
- 230000004044 response Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 230000001934 delay Effects 0.000 description 2
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- 125000006850 spacer group Chemical group 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
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- 230000000116 mitigating effect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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Images
Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F3/217—Class D power amplifiers; Switching amplifiers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F19/00—Fixed transformers or mutual inductances of the signal type
- H01F19/02—Audio-frequency transformers or mutual inductances, i.e. not suitable for handling frequencies considerably beyond the audio range
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/56—Modifications of input or output impedances, not otherwise provided for
- H03F1/565—Modifications of input or output impedances, not otherwise provided for using inductive elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/10—Composite arrangements of magnetic circuits
- H01F2003/106—Magnetic circuits using combinations of different magnetic materials
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Multimedia (AREA)
- Amplifiers (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
Description
11 電圧ループ加算部(voltage loop summer)
12 電圧源(Vhigh)
13 電圧ループ補償部(voltage loop compensator)
14 切替ノード
15 電流ループ加算部
16 スイッチ
17 電流ループ補償部
18 ノード
22 電圧源(Vlow)
24 スイッチ
26 ダイオード
28 ノード
30 出力インダクタ
30A’ 雑音インダクタ部
30B’ 無雑音インダクタ部
32 出力キャパシタ
34 出力端
36 負荷
38 変調部
40 キャパシタンス
42 電流センサ
50 センサ巻線
50’ 検知コイル
52 出力端
53 積分部
54 同調ネットワーク(tuned network)
56 インダクタ
58 キャパシタ
60 抵抗
62 キャパシタ
64 メインプリント回路基板(pcb)、ノード
68 フェライトコア(ferrite core)
70 スペーサー
72 第1部分
74 第2部分
80 相互接続パッド
82 相互接続パッド
Claims (11)
- 平面インダクタ構造を備え、
前記平面インダクタ構造は、
第1回路基板の層上に形成される第1複数巻線と、
第2回路基板の層上に形成される第2複数巻線を備えるオーディオ増幅器。 - 前記オーディオ増幅器は、出力ステージと、切替ステージとをさらに備え、
前記第1複数巻線は、前記出力ステージに隣接し、
前記第2複数巻線は、前記切替ステージに隣接する請求項1に記載のオーディオ増幅器。 - 前記第1複数巻線は、厚みを有するスペーシング構造によって、第2複数巻線から隔離され、誘電結合定数Kは、前記厚みに比例する請求項1に記載のオーディオ増幅器。
- 前記スペーシング構造は、誘電性材料の層を有する請求項3に記載のオーディオ増幅器。
- 前記スペーシング構造は、相互接続ピンを有する請求項3に記載のオーディオ増幅器。
- 前記第1複数巻線及び第2複数巻線は、結合定数Kによって特徴づけられ、結合定数Kは、前記スペーシング構造の厚みに比例する請求項3に記載のオーディオ増幅器。
- 前記平面出力インダクタは、前記第1複数巻線及び第2複数巻線を十分に取り囲むフェライトコア構造をさらに有し、
前記第1複数巻線及び第2複数巻線は、幅を有するギャップによって隔てられた2つの向かい合う面を有し、
前記出力インダクタのインダクタンスは、前記ギャップの幅に比例する請求項1に記載のオーディオ増幅器。 - 前記オーディオ増幅器は、フェライトからなる第1コア構造と、4〜200の範囲の透磁率μを持つ材料からなる第2コア構造とを備え、
前記第1構造及び第2構造は、空洞を有する結合構造を形成するように構成され、
前記空洞は、第1複数巻線及び第2複数巻線を収容し、
前記出力インダクタのインダクタンスは、μに比例する請求項1に記載のオーディオ増幅器。 - 前記オーディオ増幅器は、さらに検知コイルをさらに備え、
前記検知コイルは、前記インダクタ内の電流を検知し、前記第1回路基板の層上に形成され、第1複数巻線のうちの1つと隣り合う請求項1に記載のオーディオ増幅器。 - 第1回路基板の層上に形成された第1複数巻線を備えた平面インダクタ構造と、
前記第1複数巻線のうちの1つと隣り合い、前記第1複数巻線内の電流を検知する検知コイルとを有するオーディオ増幅器。 - 前記平面インダクタ構造は、第2回路基板の層上に形成された第2複数巻線をさらに備える請求項10に記載のオーディオ増幅器。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/717,208 US8243960B2 (en) | 2010-03-04 | 2010-03-04 | Planar audio amplifier output inductor with current sense |
US12/717,208 | 2010-03-04 | ||
PCT/US2011/024675 WO2011109158A1 (en) | 2010-03-04 | 2011-02-14 | Planar audio amplifier output inductor with current sense |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2013521700A true JP2013521700A (ja) | 2013-06-10 |
JP5517373B2 JP5517373B2 (ja) | 2014-06-11 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012556088A Active JP5517373B2 (ja) | 2010-03-04 | 2011-02-14 | 電流センサを用いた平面オーディオ増幅器出力インダクタ |
Country Status (5)
Country | Link |
---|---|
US (1) | US8243960B2 (ja) |
EP (1) | EP2543138B1 (ja) |
JP (1) | JP5517373B2 (ja) |
CN (1) | CN102792584B (ja) |
WO (1) | WO2011109158A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012137386A1 (ja) * | 2011-04-06 | 2012-10-11 | 株式会社村田製作所 | 積層型インダクタ素子およびその製造方法 |
US9054658B2 (en) | 2011-05-13 | 2015-06-09 | Bose Corporation | Power supply with rectifier protection |
US10541063B2 (en) * | 2015-08-11 | 2020-01-21 | Bel Fuse (Macao Commercial Offshore) Limited | Power inductor |
KR101952866B1 (ko) * | 2017-02-22 | 2019-02-27 | 삼성전기주식회사 | 파워 인덕터, 그 실장 기판, 및 파워 인덕터를 이용한 전류 측정 방법 |
KR20210142300A (ko) | 2020-05-18 | 2021-11-25 | 삼성전기주식회사 | 코일 부품 |
KR20210144031A (ko) * | 2020-05-21 | 2021-11-30 | 삼성전기주식회사 | 코일 부품 |
KR20210145383A (ko) | 2020-05-25 | 2021-12-02 | 삼성전기주식회사 | 코일 부품 |
DE102022118432A1 (de) | 2022-07-22 | 2024-01-25 | Robert Bosch Gmbh | Nachführender Verstärker für induktive Lasten |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04243104A (ja) * | 1991-01-17 | 1992-08-31 | Murata Mfg Co Ltd | 積層チップトランス |
JPH05343245A (ja) * | 1992-06-05 | 1993-12-24 | Masaki Esashi | 平面トランス |
JPH0613108U (ja) * | 1992-05-28 | 1994-02-18 | ファン・ピ−タ | 変圧器 |
US20070139151A1 (en) * | 2005-12-19 | 2007-06-21 | Nussbaum Michael B | Amplifier output filter having planar inductor |
Family Cites Families (86)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2841684A1 (de) * | 1978-09-25 | 1980-04-10 | Bucher Guyer Ag Masch | Presse, insbesondere steinpresse |
US4253079A (en) * | 1979-04-11 | 1981-02-24 | Amnon Brosh | Displacement transducers employing printed coil structures |
US4345116A (en) * | 1980-12-31 | 1982-08-17 | Bell Telephone Laboratories, Incorporated | Dynamic, non-hierarchical arrangement for routing traffic |
JPH04144212A (ja) | 1990-10-05 | 1992-05-18 | Cmk Corp | プリント配線板を使用した高周波用トランスおよびコイル |
US5319342A (en) * | 1992-12-29 | 1994-06-07 | Kami Electronics Ind. Co., Ltd. | Flat transformer |
US5672998A (en) * | 1995-08-09 | 1997-09-30 | Harris Corporation | Class D amplifier and method |
US5852717A (en) * | 1996-11-20 | 1998-12-22 | Shiva Corporation | Performance optimizations for computer networks utilizing HTTP |
DE29824187U1 (de) * | 1997-07-10 | 2000-10-19 | Melcher Ag Uster | Multilayer-Planarinduktivität |
JP3147826B2 (ja) * | 1997-08-20 | 2001-03-19 | エフ・ディ−・ケイ株式会社 | 高周波シート型トランス |
US6415329B1 (en) * | 1998-03-06 | 2002-07-02 | Massachusetts Institute Of Technology | Method and apparatus for improving efficiency of TCP/IP protocol over high delay-bandwidth network |
US6430618B1 (en) * | 1998-03-13 | 2002-08-06 | Massachusetts Institute Of Technology | Method and apparatus for distributing requests among a plurality of resources |
US6108703A (en) * | 1998-07-14 | 2000-08-22 | Massachusetts Institute Of Technology | Global hosting system |
US6275470B1 (en) * | 1999-06-18 | 2001-08-14 | Digital Island, Inc. | On-demand overlay routing for computer-based communication networks |
FI107421B (fi) * | 1999-06-28 | 2001-07-31 | Stonesoft Oy | Yhteyksien valintamenetelmä |
GB2351620A (en) | 1999-07-01 | 2001-01-03 | Semelab Plc | Triangle wave generator, current sensor, class D power amplifier, anti-hiss circuit and loudspeaker protection circuit |
US7346695B1 (en) * | 2002-10-28 | 2008-03-18 | F5 Networks, Inc. | System and method for performing application level persistence |
US6415323B1 (en) * | 1999-09-03 | 2002-07-02 | Fastforward Networks | Proximity-based redirection system for robust and scalable service-node location in an internetwork |
US6449658B1 (en) * | 1999-11-18 | 2002-09-10 | Quikcat.Com, Inc. | Method and apparatus for accelerating data through communication networks |
US6754699B2 (en) * | 2000-07-19 | 2004-06-22 | Speedera Networks, Inc. | Content delivery and global traffic management network system |
US6405252B1 (en) * | 1999-11-22 | 2002-06-11 | Speedera Networks, Inc. | Integrated point of presence server network |
US6754706B1 (en) * | 1999-12-16 | 2004-06-22 | Speedera Networks, Inc. | Scalable domain name system with persistence and load balancing |
US6665726B1 (en) * | 2000-01-06 | 2003-12-16 | Akamai Technologies, Inc. | Method and system for fault tolerant media streaming over the internet |
US6820133B1 (en) * | 2000-02-07 | 2004-11-16 | Netli, Inc. | System and method for high-performance delivery of web content using high-performance communications protocol between the first and second specialized intermediate nodes to optimize a measure of communications performance between the source and the destination |
US7340532B2 (en) * | 2000-03-10 | 2008-03-04 | Akamai Technologies, Inc. | Load balancing array packet routing system |
US7020719B1 (en) * | 2000-03-24 | 2006-03-28 | Netli, Inc. | System and method for high-performance delivery of Internet messages by selecting first and second specialized intermediate nodes to optimize a measure of communications performance between the source and the destination |
US6420953B1 (en) * | 2000-05-19 | 2002-07-16 | Pulse Engineering. Inc. | Multi-layer, multi-functioning printed circuit board |
US7251688B2 (en) * | 2000-05-26 | 2007-07-31 | Akamai Technologies, Inc. | Method for generating a network map |
CA2450394C (en) * | 2000-05-26 | 2011-07-19 | Akamai Technologies, Inc. | Global load balancing across mirrored data centers |
US7072979B1 (en) * | 2000-06-28 | 2006-07-04 | Cisco Technology, Inc. | Wide area load balancing of web traffic |
US7165116B2 (en) * | 2000-07-10 | 2007-01-16 | Netli, Inc. | Method for network discovery using name servers |
US7484002B2 (en) * | 2000-08-18 | 2009-01-27 | Akamai Technologies, Inc. | Content delivery and global traffic management network system |
US7346676B1 (en) * | 2000-07-19 | 2008-03-18 | Akamai Technologies, Inc. | Load balancing service |
US6795823B1 (en) * | 2000-08-31 | 2004-09-21 | Neoris Logistics, Inc. | Centralized system and method for optimally routing and tracking articles |
US7454500B1 (en) * | 2000-09-26 | 2008-11-18 | Foundry Networks, Inc. | Global server load balancing |
US6628531B2 (en) * | 2000-12-11 | 2003-09-30 | Pulse Engineering, Inc. | Multi-layer and user-configurable micro-printed circuit board |
WO2002069608A2 (en) * | 2001-01-16 | 2002-09-06 | Akamai Technologies, Inc. | Using virtual domain name service (dns) zones for enterprise content delivery |
JP2002223132A (ja) * | 2001-01-29 | 2002-08-09 | Niigata Seimitsu Kk | 音声再生装置および方法 |
US7155515B1 (en) * | 2001-02-06 | 2006-12-26 | Microsoft Corporation | Distributed load balancing for single entry-point systems |
US7003572B1 (en) * | 2001-02-28 | 2006-02-21 | Packeteer, Inc. | System and method for efficiently forwarding client requests from a proxy server in a TCP/IP computing environment |
EP1388073B1 (en) * | 2001-03-01 | 2018-01-10 | Akamai Technologies, Inc. | Optimal route selection in a content delivery network |
US6982954B2 (en) * | 2001-05-03 | 2006-01-03 | International Business Machines Corporation | Communications bus with redundant signal paths and method for compensating for signal path errors in a communications bus |
US7480705B2 (en) * | 2001-07-24 | 2009-01-20 | International Business Machines Corporation | Dynamic HTTP load balancing method and apparatus |
US6880002B2 (en) * | 2001-09-05 | 2005-04-12 | Surgient, Inc. | Virtualized logical server cloud providing non-deterministic allocation of logical attributes of logical servers to physical resources |
US7475157B1 (en) * | 2001-09-14 | 2009-01-06 | Swsoft Holding, Ltd. | Server load balancing system |
US7373644B2 (en) * | 2001-10-02 | 2008-05-13 | Level 3 Communications, Llc | Automated server replication |
CA2410172A1 (en) * | 2001-10-29 | 2003-04-29 | Jose Alejandro Rueda | Content routing architecture for enhanced internet services |
US6606685B2 (en) * | 2001-11-15 | 2003-08-12 | Bmc Software, Inc. | System and method for intercepting file system writes |
US7257584B2 (en) * | 2002-03-18 | 2007-08-14 | Surgient, Inc. | Server file management |
US7454458B2 (en) * | 2002-06-24 | 2008-11-18 | Ntt Docomo, Inc. | Method and system for application load balancing |
US6914508B2 (en) * | 2002-08-15 | 2005-07-05 | Galaxy Power, Inc. | Simplified transformer design for a switching power supply |
US7185067B1 (en) * | 2002-08-27 | 2007-02-27 | Cisco Technology, Inc. | Load balancing network access requests |
US7136922B2 (en) * | 2002-10-15 | 2006-11-14 | Akamai Technologies, Inc. | Method and system for providing on-demand content delivery for an origin server |
GB0227786D0 (en) * | 2002-11-29 | 2003-01-08 | Ibm | Improved remote copy synchronization in disaster recovery computer systems |
US7126955B2 (en) * | 2003-01-29 | 2006-10-24 | F5 Networks, Inc. | Architecture for efficient utilization and optimum performance of a network |
AU2004216040A1 (en) * | 2003-02-24 | 2004-09-10 | Bea Systems, Inc. | System and method for server load balancing and server affinity |
US7430568B1 (en) * | 2003-02-28 | 2008-09-30 | Sun Microsystems, Inc. | Systems and methods for providing snapshot capabilities in a storage virtualization environment |
US6927661B2 (en) * | 2003-03-05 | 2005-08-09 | Tdk Innoveta Inc. | Planar transformer and output inductor structure with single planar winding board and two magnetic cores |
US7308499B2 (en) * | 2003-04-30 | 2007-12-11 | Avaya Technology Corp. | Dynamic load balancing for enterprise IP traffic |
US7398422B2 (en) * | 2003-06-26 | 2008-07-08 | Hitachi, Ltd. | Method and apparatus for data recovery system using storage based journaling |
US7436775B2 (en) * | 2003-07-24 | 2008-10-14 | Alcatel Lucent | Software configurable cluster-based router using stock personal computers as cluster nodes |
US7286476B2 (en) * | 2003-08-01 | 2007-10-23 | F5 Networks, Inc. | Accelerating network performance by striping and parallelization of TCP connections |
US7203796B1 (en) * | 2003-10-24 | 2007-04-10 | Network Appliance, Inc. | Method and apparatus for synchronous data mirroring |
US7325109B1 (en) * | 2003-10-24 | 2008-01-29 | Network Appliance, Inc. | Method and apparatus to mirror data at two separate sites without comparing the data at the two sites |
US7389510B2 (en) * | 2003-11-06 | 2008-06-17 | International Business Machines Corporation | Load balancing of servers in a cluster |
US7380039B2 (en) * | 2003-12-30 | 2008-05-27 | 3Tera, Inc. | Apparatus, method and system for aggregrating computing resources |
US7426617B2 (en) * | 2004-02-04 | 2008-09-16 | Network Appliance, Inc. | Method and system for synchronizing volumes in a continuous data protection system |
US7266656B2 (en) * | 2004-04-28 | 2007-09-04 | International Business Machines Corporation | Minimizing system downtime through intelligent data caching in an appliance-based business continuance architecture |
US8521687B2 (en) * | 2004-08-03 | 2013-08-27 | International Business Machines Corporation | Apparatus, system, and method for selecting optimal replica sources in a grid computing environment |
US7840963B2 (en) * | 2004-10-15 | 2010-11-23 | Microsoft Corporation | Marking and utilizing portions of memory state information during a switch between virtual machines to minimize software service interruption |
US7779410B2 (en) * | 2004-12-17 | 2010-08-17 | Sap Ag | Control interfaces for distributed system applications |
US7710865B2 (en) * | 2005-02-25 | 2010-05-04 | Cisco Technology, Inc. | Disaster recovery for active-standby data center using route health and BGP |
US8949364B2 (en) * | 2005-09-15 | 2015-02-03 | Ca, Inc. | Apparatus, method and system for rapid delivery of distributed applications |
KR20070074059A (ko) * | 2006-01-06 | 2007-07-12 | 삼성전자주식회사 | 자기 코어 및 이를 포함하는 인덕터, 변압기 |
US7487383B2 (en) * | 2006-06-29 | 2009-02-03 | Dssdr, Llc | Data transfer and recovery process |
US7719997B2 (en) * | 2006-12-28 | 2010-05-18 | At&T Corp | System and method for global traffic optimization in a network |
US20080192960A1 (en) * | 2007-02-09 | 2008-08-14 | Nussbaum Michael B | Hybrid Filter for Audio Switching Amplifier |
US7332993B1 (en) * | 2007-04-10 | 2008-02-19 | Bose Corporation | Planar transformer having fractional windings |
US7987467B2 (en) * | 2007-04-13 | 2011-07-26 | International Business Machines Corporation | Scale across in a grid computing environment |
DE102007019110A1 (de) | 2007-04-23 | 2008-10-30 | Osram Gesellschaft mit beschränkter Haftung | Elektronisches Bauelement |
US9930099B2 (en) * | 2007-05-08 | 2018-03-27 | Riverbed Technology, Inc. | Hybrid segment-oriented file server and WAN accelerator |
US8310327B2 (en) * | 2007-06-11 | 2012-11-13 | Moog Limited | Low-profile transformer |
US20080320482A1 (en) * | 2007-06-20 | 2008-12-25 | Dawson Christopher J | Management of grid computing resources based on service level requirements |
US8073922B2 (en) * | 2007-07-27 | 2011-12-06 | Twinstrata, Inc | System and method for remote asynchronous data replication |
TW200908542A (en) * | 2007-08-10 | 2009-02-16 | Richtek Technology Corp | Driving device for electrostatic loudspeaker |
US7970903B2 (en) * | 2007-08-20 | 2011-06-28 | Hitachi, Ltd. | Storage and server provisioning for virtualized and geographically dispersed data centers |
US7889041B2 (en) * | 2007-11-05 | 2011-02-15 | Schweitzer Engineering Laboratories, Inc. | Systems and methods for forming an isolated transformer |
-
2010
- 2010-03-04 US US12/717,208 patent/US8243960B2/en active Active
-
2011
- 2011-02-14 WO PCT/US2011/024675 patent/WO2011109158A1/en active Application Filing
- 2011-02-14 EP EP11704166.5A patent/EP2543138B1/en active Active
- 2011-02-14 JP JP2012556088A patent/JP5517373B2/ja active Active
- 2011-02-14 CN CN201180012280.2A patent/CN102792584B/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04243104A (ja) * | 1991-01-17 | 1992-08-31 | Murata Mfg Co Ltd | 積層チップトランス |
JPH0613108U (ja) * | 1992-05-28 | 1994-02-18 | ファン・ピ−タ | 変圧器 |
JPH05343245A (ja) * | 1992-06-05 | 1993-12-24 | Masaki Esashi | 平面トランス |
US20070139151A1 (en) * | 2005-12-19 | 2007-06-21 | Nussbaum Michael B | Amplifier output filter having planar inductor |
Also Published As
Publication number | Publication date |
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US8243960B2 (en) | 2012-08-14 |
CN102792584B (zh) | 2016-08-17 |
CN102792584A (zh) | 2012-11-21 |
JP5517373B2 (ja) | 2014-06-11 |
EP2543138A1 (en) | 2013-01-09 |
US20110215893A1 (en) | 2011-09-08 |
WO2011109158A1 (en) | 2011-09-09 |
EP2543138B1 (en) | 2013-11-27 |
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