GB2301494A - Forward converter - Google Patents

Forward converter

Info

Publication number
GB2301494A
GB2301494A GB9617646A GB9617646A GB2301494A GB 2301494 A GB2301494 A GB 2301494A GB 9617646 A GB9617646 A GB 9617646A GB 9617646 A GB9617646 A GB 9617646A GB 2301494 A GB2301494 A GB 2301494A
Authority
GB
United Kingdom
Prior art keywords
switching means
converter
control signal
controlling
conducting
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.)
Granted
Application number
GB9617646A
Other versions
GB9617646D0 (en
GB2301494B (en
Inventor
Matti Havukainen
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.)
Nokia Oyj
Original Assignee
Nokia Telecommunications Oy
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 Nokia Telecommunications Oy filed Critical Nokia Telecommunications Oy
Publication of GB9617646D0 publication Critical patent/GB9617646D0/en
Publication of GB2301494A publication Critical patent/GB2301494A/en
Application granted granted Critical
Publication of GB2301494B publication Critical patent/GB2301494B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
    • H02M3/33576—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
    • H02M3/33592—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer having a synchronous rectifier circuit or a synchronous freewheeling circuit at the secondary side of an isolation transformer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

The invention relates to a forward converter comprising: a transformer (1) through which power is transferred from the primary circuit of the converter to the secondary circuit thereof, a control circuit (IC) for generating a first control signal and controlling the output voltage of the converter, a first switching means (S1) for interrupting the primary winding of the transformer (1) in response to the first control signal, an element (L) for storing energy, a second switching means (S2) synchronized with the first switching means (S1) in such a manner that the switches (S1, S2) are simultaneously in a conducting and, correspondingly, in a non-conducting state, a third switching means (S3) synchronized with the first switching means (S1) in such a manner that the switches (S1, S3) are alternately in a conducting and, correspondingly, in a non-conducting state. To provide simple control, the converter comprises converter means (2, 3, 4) for controlling the second (S2) and the third (S3) switching means responsive to the first control signal generated by the control circuit (IC), whereby the power required for controlling the switching means (S2, S3) is derived from the first control signal generated by the control circuit (IC).
GB9617646A 1994-02-25 1995-02-22 Forward converter Expired - Fee Related GB2301494B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI940925A FI940925A (en) 1994-02-25 1994-02-25 Forward type switch mode power supply
PCT/FI1995/000093 WO1995023451A1 (en) 1994-02-25 1995-02-22 Forward converter

Publications (3)

Publication Number Publication Date
GB9617646D0 GB9617646D0 (en) 1996-10-02
GB2301494A true GB2301494A (en) 1996-12-04
GB2301494B GB2301494B (en) 1997-09-24

Family

ID=8540201

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9617646A Expired - Fee Related GB2301494B (en) 1994-02-25 1995-02-22 Forward converter

Country Status (6)

Country Link
AU (1) AU1710395A (en)
DE (1) DE19581532T1 (en)
FI (1) FI940925A (en)
GB (1) GB2301494B (en)
SE (1) SE511081C2 (en)
WO (1) WO1995023451A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004098037A1 (en) * 2003-04-25 2004-11-11 Alexander Jurevich Goncharov Continuos current converter
RU2541519C1 (en) * 2014-02-24 2015-02-20 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" Stabilised dc voltage converter
RU2700291C1 (en) * 2018-12-06 2019-09-16 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") Secondary pulse power supply of fiber-optic gyroscope

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7269034B2 (en) 1997-01-24 2007-09-11 Synqor, Inc. High efficiency power converter
DE102004061341A1 (en) 2004-12-20 2006-07-06 Puls Gmbh Current supply e.g. adapter, switch actuator or switching network part, with high adjuster, resonance converter and control unit, in which high adjuster is coupled to resonance converter
US7787265B2 (en) * 2007-02-27 2010-08-31 Speedy-Tech Electronics Ltd. Self-coupled driver used in dual-switch forward power converter
US10199950B1 (en) 2013-07-02 2019-02-05 Vlt, Inc. Power distribution architecture with series-connected bus converter

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4870555A (en) * 1988-10-14 1989-09-26 Compaq Computer Corporation High-efficiency DC-to-DC power supply with synchronous rectification
US5128603A (en) * 1989-05-05 1992-07-07 Alcatel N.V. Forward converter using an inverter including a transistor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4870555A (en) * 1988-10-14 1989-09-26 Compaq Computer Corporation High-efficiency DC-to-DC power supply with synchronous rectification
US5128603A (en) * 1989-05-05 1992-07-07 Alcatel N.V. Forward converter using an inverter including a transistor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004098037A1 (en) * 2003-04-25 2004-11-11 Alexander Jurevich Goncharov Continuos current converter
RU2541519C1 (en) * 2014-02-24 2015-02-20 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" Stabilised dc voltage converter
RU2700291C1 (en) * 2018-12-06 2019-09-16 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") Secondary pulse power supply of fiber-optic gyroscope

Also Published As

Publication number Publication date
GB9617646D0 (en) 1996-10-02
WO1995023451A1 (en) 1995-08-31
GB2301494B (en) 1997-09-24
SE511081C3 (en) 1999-08-02
SE511081C2 (en) 1999-08-02
AU1710395A (en) 1995-09-11
SE9603018L (en) 1996-08-20
FI940925A0 (en) 1994-02-25
SE9603018D0 (en) 1996-08-20
FI940925A (en) 1995-08-26
DE19581532T1 (en) 1997-01-16

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20060222