JP2003234221A5 - - Google Patents
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- Publication number
- JP2003234221A5 JP2003234221A5 JP2002372991A JP2002372991A JP2003234221A5 JP 2003234221 A5 JP2003234221 A5 JP 2003234221A5 JP 2002372991 A JP2002372991 A JP 2002372991A JP 2002372991 A JP2002372991 A JP 2002372991A JP 2003234221 A5 JP2003234221 A5 JP 2003234221A5
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- JP
- Japan
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US34267701P | 2001-12-21 | 2001-12-21 | |
| US60/342677 | 2001-12-21 | ||
| US10/324492 | 2002-12-19 | ||
| US10/324,492 US7119647B2 (en) | 2001-12-21 | 2002-12-19 | Method and apparatus for substantially reducing electrical earth displacement current flow generated by wound components without requiring additional windings |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2003234221A JP2003234221A (ja) | 2003-08-22 |
| JP2003234221A5 true JP2003234221A5 (enExample) | 2006-03-02 |
| JP4310770B2 JP4310770B2 (ja) | 2009-08-12 |
Family
ID=26984491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002372991A Expired - Fee Related JP4310770B2 (ja) | 2001-12-21 | 2002-12-24 | 巻線構成要素によって生成される電気接地変位電流を、追加巻線を必要とすることなく実質的に小さくするための方法および装置 |
Country Status (3)
| Country | Link |
|---|---|
| US (5) | US7119647B2 (enExample) |
| EP (1) | EP1329914A3 (enExample) |
| JP (1) | JP4310770B2 (enExample) |
Families Citing this family (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6995990B2 (en) * | 2001-03-08 | 2006-02-07 | Power Integrations, Inc. | Method and apparatus for substantially reducing electrical earth displacement current flow generated by wound components |
| US6549431B2 (en) * | 2001-03-08 | 2003-04-15 | Power Integrations, Inc. | Method and apparatus for substantially reducing electrical earth displacement current flow generated by wound components |
| US7119647B2 (en) * | 2001-12-21 | 2006-10-10 | Power Integrations, Inc. | Method and apparatus for substantially reducing electrical earth displacement current flow generated by wound components without requiring additional windings |
| WO2005015725A1 (ja) * | 2003-08-11 | 2005-02-17 | Sanken Electric Co., Ltd. | スイッチング電源装置 |
| US7373714B2 (en) * | 2004-11-16 | 2008-05-20 | Power Integrations, Inc. | Method and article of manufacture for designing a transformer |
| JP2006287115A (ja) * | 2005-04-04 | 2006-10-19 | Mitsubishi Electric Corp | Ｄｃ−ｄｃコンバータおよび放電灯点灯装置 |
| JP4675689B2 (ja) * | 2005-06-17 | 2011-04-27 | 富士通テレコムネットワークス株式会社 | スイッチング電源装置 |
| US7545656B2 (en) * | 2006-07-18 | 2009-06-09 | Comarco Wireless Technologies, Inc. | Common mode noise reduction circuit utilizing dual primary windings |
| US7979043B2 (en) * | 2007-11-28 | 2011-07-12 | Broadcom Corporation | Programmable antenna interface with adjustable transformer and methods for use therewith |
| US8154371B2 (en) | 2008-11-06 | 2012-04-10 | Power Integrations, Inc. | Method and apparatus for adjusting displacement current in an energy transfer element |
| CN101847495B (zh) * | 2010-05-20 | 2012-07-25 | 宜兴市创星电子有限公司 | 防漏电变压器 |
| FI20105926A0 (fi) * | 2010-09-03 | 2010-09-03 | Salcomp Oyj | Piirijärjestely ja menetelmä yhteismuotoisen kohinan vähentämiseksi hakkuriteholähteessä, ja hakkuriteholähde |
| CN102163492B (zh) * | 2010-12-31 | 2013-05-29 | 崧顺电子（深圳）有限公司 | 一种无y电容的变压器及其制备方法 |
| JP2013105796A (ja) * | 2011-11-11 | 2013-05-30 | Toko Inc | コイル装置 |
| CN103310956B (zh) * | 2012-03-06 | 2016-03-23 | 台达电子企业管理（上海）有限公司 | 一种可抑制共模电流的变压器及其功率变换器 |
| JP6085904B2 (ja) * | 2012-05-31 | 2017-03-01 | ブラザー工業株式会社 | ノイズ低減装置、電源装置、及びノイズ低減装置におけるコアの配置方法 |
| JP6028474B2 (ja) * | 2012-09-10 | 2016-11-16 | 株式会社村田製作所 | コンデンサ回路、ｄｃ−ｄｃコンバータ回路、及び直流電源装置 |
| US9576725B2 (en) * | 2012-12-28 | 2017-02-21 | General Electric Company | Method for reducing interwinding capacitance current in an isolation transformer |
| US9177714B2 (en) * | 2012-12-28 | 2015-11-03 | Power Integrations, Inc. | Transverse shield wire for energy transfer element |
| CN104183373A (zh) | 2013-05-24 | 2014-12-03 | 台达电子工业股份有限公司 | 变压器 |
| EP3035349B1 (en) * | 2014-12-17 | 2018-09-05 | Nxp B.V. | A transformer |
| JP6428742B2 (ja) * | 2016-10-12 | 2018-11-28 | オムロン株式会社 | 変圧器およびそれを備えた電力変換器 |
| WO2018080913A1 (en) * | 2016-10-27 | 2018-05-03 | University Of Florida Research Foundation, Incorporated | Loop noise balance technique for cm emi noise reduction of the full bridge llc resonant converter |
| US11164696B2 (en) * | 2016-11-08 | 2021-11-02 | Power Integrations, Inc. | Low common mode noise transformer structure with external float wire mount |
| US10978241B2 (en) * | 2016-12-09 | 2021-04-13 | Astec International Limited | Transformers having screen layers to reduce common mode noise |
| CN110301019B (zh) | 2017-05-05 | 2021-07-09 | 华为技术有限公司 | 一种变压器及开关电源 |
| WO2019141366A1 (en) * | 2018-01-18 | 2019-07-25 | Advantest Corporation | Transformer arrangement, circuit arrangement and method for operating a transformer arrangement |
| CN109166702B (zh) * | 2018-08-03 | 2021-08-27 | 湖州同立光电材料股份有限公司 | 分体绕线筒结构的开关电源变压器散热系统及散热方法 |
| WO2022103946A1 (en) * | 2020-11-11 | 2022-05-19 | Rompower Technology Holdings, Llc | Low noise multilayer transformer |
| US12322535B2 (en) | 2020-11-11 | 2025-06-03 | Rompower Technology Holdings, Llc | Planar multilayer transformer with minimum noise injection in between primary and secondary winding |
| CN119943545B (zh) * | 2025-01-23 | 2025-10-24 | 东莞市奥海科技股份有限公司 | 一种变压器的平衡绕组设计方法及变压器 |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2553324A (en) * | 1949-07-27 | 1951-05-15 | Gen Electric | Wide band audio and video transformer |
| US3299384A (en) * | 1964-07-01 | 1967-01-17 | Ibm | Wide-band transformer having neutralizing winding |
| US3810303A (en) | 1969-05-15 | 1974-05-14 | J Hoell | Method of making electrical transformer means |
| US3963975A (en) | 1975-03-05 | 1976-06-15 | General Electric Company | Electromagnetically shielded electrical power supply with reduced common mode electromagnetic interference output |
| GB1539757A (en) | 1975-06-11 | 1979-01-31 | Sony Corp | Transformers and converters including such transformers |
| US4518941A (en) * | 1983-11-16 | 1985-05-21 | Nihon Kohden Corporation | Pulse transformer for switching power supplies |
| JPS60226112A (ja) | 1984-04-25 | 1985-11-11 | Hitachi Ltd | トランスの巻線間シ−ルド構造 |
| US4707619A (en) | 1985-02-13 | 1987-11-17 | Maxwell Laboratories, Inc. | Saturable inductor switch and pulse compression power supply employing the switch |
| US5150046A (en) * | 1990-12-17 | 1992-09-22 | Goldstar Electric Machinery Co. | Noise-shielded transformer |
| JPH04282806A (ja) * | 1991-03-11 | 1992-10-07 | Omron Corp | 静電遮蔽トランス |
| JP3132251B2 (ja) | 1993-07-26 | 2001-02-05 | 株式会社明電舎 | パルス電源用磁気スイッチ |
| NO179348C (no) | 1994-02-07 | 1996-09-18 | Labyrint Dev As | Anordning for levering av en höyfrekvent, pulserende likespenning på sekundærsiden av en transformator |
| US5615091A (en) | 1995-10-11 | 1997-03-25 | Biochem International, Inc. | Isolation transformer for medical equipment |
| JPH1052036A (ja) | 1996-07-26 | 1998-02-20 | Toshiba Corp | スイッチング電源装置 |
| US6429762B1 (en) * | 1997-08-18 | 2002-08-06 | Compaq Information Technologies Group, L.P. | Data communication isolation transformer with improved common-mode attenuation |
| JP3161398B2 (ja) * | 1997-12-18 | 2001-04-25 | 松下電器産業株式会社 | コンバータトランス |
| US6420952B1 (en) * | 1998-09-30 | 2002-07-16 | Core Technology Inc. | Faraday shield and method |
| US6429763B1 (en) | 2000-02-01 | 2002-08-06 | Compaq Information Technologies Group, L.P. | Apparatus and method for PCB winding planar magnetic devices |
| US6366474B1 (en) | 2000-09-29 | 2002-04-02 | Jeff Gucyski | Switching power supplies incorporating power factor correction and/or switching at resonant transition |
| US6549431B2 (en) | 2001-03-08 | 2003-04-15 | Power Integrations, Inc. | Method and apparatus for substantially reducing electrical earth displacement current flow generated by wound components |
| US7119647B2 (en) * | 2001-12-21 | 2006-10-10 | Power Integrations, Inc. | Method and apparatus for substantially reducing electrical earth displacement current flow generated by wound components without requiring additional windings |
-
2002
- 2002-12-19 US US10/324,492 patent/US7119647B2/en not_active Expired - Lifetime
- 2002-12-20 EP EP02258898A patent/EP1329914A3/en not_active Withdrawn
- 2002-12-24 JP JP2002372991A patent/JP4310770B2/ja not_active Expired - Fee Related
-
2004
- 2004-06-14 US US10/866,938 patent/US7346979B2/en not_active Expired - Fee Related
- 2004-06-14 US US10/866,889 patent/US7109836B2/en not_active Expired - Lifetime
-
2008
- 2008-02-19 US US12/033,833 patent/US7567162B2/en not_active Expired - Fee Related
-
2009
- 2009-06-19 US US12/488,483 patent/US7768369B2/en not_active Expired - Fee Related