EP3267444A1 - Transformator und schaltnetzteilvorrichtung - Google Patents

Transformator und schaltnetzteilvorrichtung Download PDF

Info

Publication number
EP3267444A1
EP3267444A1 EP16178163.8A EP16178163A EP3267444A1 EP 3267444 A1 EP3267444 A1 EP 3267444A1 EP 16178163 A EP16178163 A EP 16178163A EP 3267444 A1 EP3267444 A1 EP 3267444A1
Authority
EP
European Patent Office
Prior art keywords
winding
transformer
secondary windings
windings
primary winding
Prior art date
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.)
Withdrawn
Application number
EP16178163.8A
Other languages
English (en)
French (fr)
Inventor
Hiroo Ogawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tamura Corp
Original Assignee
Tamura Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tamura Corp filed Critical Tamura Corp
Priority to EP16178163.8A priority Critical patent/EP3267444A1/de
Publication of EP3267444A1 publication Critical patent/EP3267444A1/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H01F27/306—Fastening or mounting coils or windings on core, casing or other support
    • 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
    • H01F3/14—Constrictions; Gaps, e.g. air-gaps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F30/00—Fixed transformers not covered by group H01F19/00
    • H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
    • H01F30/12—Two-phase, three-phase or polyphase transformers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
    • H01F27/38—Auxiliary core members; Auxiliary coils or windings

Definitions

  • the secondary windings 12, 13 are disposed at both sides of the primary winding 11 in a winding axis of the primary winding 11. In other words, both of the secondary windings 12 and 13 are disposed adjacent to the primary winding 11.
  • the secondary windings 12 and 13 are respectively spaced apart from the primary winding 11 at an equal distance in the winding axis of the primary winding 11.
  • the secondary windings 12, 13 are respectively spaced apart from the gap 15 at an equal distance in the winding axis of the primary winding 11.
  • the capacitors 25, 26 are connected to the secondary windings 12, 13.
  • the diodes 23, 24 are connected between the secondary windings 12, 13 and the capacitors 25, 26 to rectify the output voltage from the secondary windings 12 and 13. Furthermore, the capacitors 25, 26 smooth the rectified voltage and generate DC voltage.
  • the distortion in the output voltage waveform at the no-load side means corresponding or proportional variation (change) in the output voltage.
  • the voltage waveform of one of the secondary windings 12, 13 is normal and the distortion occurs in the voltage waveform of the other of the secondary windings 12, 13.
  • the voltage waveform of the auxiliary winding 14, 16 neighboring the secondary winding 12, 13 having the distorted voltage waveform also becomes distorted.
  • the voltage waveform of the auxiliary winding 14, 16 which neighbors the secondary winding 12, 13 having the normal voltage waveform is normal, and the two auxiliary windings 14, 16 are shorted to each other.
  • the voltage waveform of the auxiliary winding 14 16 which neighbors the secondary winding 12, 14 having the distorted voltage waveform is normalized.
  • FIG. 11 shows the voltage waveform (before rectification) in a case where the current of the secondary winding 12 is 0A and the current of the secondary winding 13 is 0.1A.
  • the projection (about 20V) in the voltage waveform of the secondary winding 12 ( FIG. 11 ) is further lowered in comparison to the projection (about 21V) in the voltage waveform of the secondary winding 12 as shown in FIG. 8A . Therefore, it can be seen that the distortion is alleviated.
  • the voltage waveforms of the secondary windings 12, 13 (before rectification) are improved such that they are equalized, the cross regulation can be reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Dc-Dc Converters (AREA)
EP16178163.8A 2016-07-06 2016-07-06 Transformator und schaltnetzteilvorrichtung Withdrawn EP3267444A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16178163.8A EP3267444A1 (de) 2016-07-06 2016-07-06 Transformator und schaltnetzteilvorrichtung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16178163.8A EP3267444A1 (de) 2016-07-06 2016-07-06 Transformator und schaltnetzteilvorrichtung

Publications (1)

Publication Number Publication Date
EP3267444A1 true EP3267444A1 (de) 2018-01-10

Family

ID=56851338

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16178163.8A Withdrawn EP3267444A1 (de) 2016-07-06 2016-07-06 Transformator und schaltnetzteilvorrichtung

Country Status (1)

Country Link
EP (1) EP3267444A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111383830A (zh) * 2018-12-29 2020-07-07 台达电子企业管理（上海）有限公司 磁性单元

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0216500A1 (de) * 1985-08-19 1987-04-01 Mitsubishi Denki Kabushiki Kaisha Elektromagnetischer Induktionsapparat
JPH0549257A (ja) 1991-08-08 1993-02-26 Matsushita Electric Ind Co Ltd スイツチング電源装置
US6556117B1 (en) * 1999-08-26 2003-04-29 Fdk Corporation Multi-channel uniform output type transformer
US20080212341A1 (en) * 2006-10-16 2008-09-04 Kabushiki Kaisha Toyota Jidoshokki Dc-dc converter and transformer
CN201859747U (zh) * 2010-07-22 2011-06-08 中国西电电气股份有限公司 带辅助绕组电力变压器的器身排列结构
US20120326829A1 (en) * 2010-03-25 2012-12-27 Panasonic Corporation Transformer
EP2639800A1 (de) * 2012-03-14 2013-09-18 Siemens Aktiengesellschaft Transformator für ein elektrisch angetriebenes Fahrzeug
EP2787516A1 (de) * 2011-11-29 2014-10-08 Mitsubishi Electric Corporation Transformator und transformationsvorrichtung damit
WO2016022966A1 (en) * 2014-08-07 2016-02-11 The Trustees Of Dartmouth College Magnetic devices including low ac resistance foil windings and gapped magnetic cores

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0216500A1 (de) * 1985-08-19 1987-04-01 Mitsubishi Denki Kabushiki Kaisha Elektromagnetischer Induktionsapparat
JPH0549257A (ja) 1991-08-08 1993-02-26 Matsushita Electric Ind Co Ltd スイツチング電源装置
US6556117B1 (en) * 1999-08-26 2003-04-29 Fdk Corporation Multi-channel uniform output type transformer
US20080212341A1 (en) * 2006-10-16 2008-09-04 Kabushiki Kaisha Toyota Jidoshokki Dc-dc converter and transformer
US20120326829A1 (en) * 2010-03-25 2012-12-27 Panasonic Corporation Transformer
CN201859747U (zh) * 2010-07-22 2011-06-08 中国西电电气股份有限公司 带辅助绕组电力变压器的器身排列结构
EP2787516A1 (de) * 2011-11-29 2014-10-08 Mitsubishi Electric Corporation Transformator und transformationsvorrichtung damit
EP2639800A1 (de) * 2012-03-14 2013-09-18 Siemens Aktiengesellschaft Transformator für ein elektrisch angetriebenes Fahrzeug
WO2016022966A1 (en) * 2014-08-07 2016-02-11 The Trustees Of Dartmouth College Magnetic devices including low ac resistance foil windings and gapped magnetic cores

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111383830A (zh) * 2018-12-29 2020-07-07 台达电子企业管理（上海）有限公司 磁性单元
US11437175B2 (en) 2018-12-29 2022-09-06 Delta Electronics (Shanghai) Co., Ltd Magnetic unit

Similar Documents

Publication Publication Date Title
US10050543B2 (en) Switching power supply device changing output voltage setting and integrated circuit for switching power supply device
US7522430B2 (en) Switching power supply apparatus
US9203318B2 (en) Primary side current regulation on LLC converters for LED driving
US20110069514A1 (en) Dc conversion apparatus
KR100966972B1 (ko) 가변 스위칭 주파수 방식 전원 공급 장치
US7679213B2 (en) AC to DC converter circuit
WO2015004989A1 (ja) 双方向ｄｃ／ｄｃコンバータ
EP2426810A2 (de) Stromversorgungsschaltung
US10491136B2 (en) Bridge-less type electric power conversion device having current detection circuit of current transformer type
US9160238B2 (en) Power converter with current feedback loop
US8536732B2 (en) Power supply system
JPWO2015016146A1 (ja) ゲート電源装置及びこれを用いた半導体遮断器
CN105846679B (zh) 变压器和开关电源装置
CN105846680B (zh) 变压器和开关电源装置
KR101925182B1 (ko) 변류기 기반의 유도형 전원공급 장치
KR102030721B1 (ko) 자기유도 전원 공급 장치
EP3267444A1 (de) Transformator und schaltnetzteilvorrichtung
US10381937B2 (en) Power converter having multiple switching legs
JP3356135B2 (ja) 移動体の非接触給電装置
US10262789B2 (en) Transformer and switched-mode power supply apparatus
US10249430B2 (en) Transformer and switched-mode power supply apparatus
EP3267445B1 (de) Transformator und schaltnetzteilvorrichtung
JP2012210028A (ja) スイッチング電源装置
US9112353B2 (en) Power supply device
JP5381169B2 (ja) Ｄｃ−ｄｃコンバータ

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20180416

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20180606

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20230822

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20240103