SE9804454D0 - A synchronous flyback converter - Google Patents

A synchronous flyback converter

Info

Publication number
SE9804454D0
SE9804454D0 SE9804454A SE9804454A SE9804454D0 SE 9804454 D0 SE9804454 D0 SE 9804454D0 SE 9804454 A SE9804454 A SE 9804454A SE 9804454 A SE9804454 A SE 9804454A SE 9804454 D0 SE9804454 D0 SE 9804454D0
Authority
SE
Sweden
Prior art keywords
flyback converter
drive
switch
synchronous flyback
synchronous
Prior art date
Application number
SE9804454A
Other languages
Swedish (sv)
Other versions
SE517220C2 (en
SE9804454L (en
Inventor
Bo Hedenskog
Claes Svaerdsjoe
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE9804454A priority Critical patent/SE517220C2/en
Publication of SE9804454D0 publication Critical patent/SE9804454D0/en
Priority to TW088116943A priority patent/TW456096B/en
Priority to PCT/SE1999/002390 priority patent/WO2000038305A1/en
Priority to CA002356187A priority patent/CA2356187A1/en
Priority to CNB99814777XA priority patent/CN1135682C/en
Priority to KR1020017007808A priority patent/KR20010093856A/en
Priority to AU30920/00A priority patent/AU3092000A/en
Priority to JP2000590281A priority patent/JP2002534049A/en
Priority to EP99964889A priority patent/EP1145415A1/en
Publication of SE9804454L publication Critical patent/SE9804454L/en
Publication of SE517220C2 publication Critical patent/SE517220C2/en
Priority to HK02105160.1A priority patent/HK1043447B/en

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
    • 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

Abstract

In a continuous mode flyback converter having a synchronous switch (Q2) the drive pulse to the switch (Q2) on the secondary side is generated by an inverting buffer circuit being fed from the output voltage terminal. By using such an arrangement several advantages are obtained. Hence, the pulse generating circuit arrangement generates a drive signal to the synchronous switch which is independent of the input voltage and the drive losses can thereby be minimized.
SE9804454A 1998-12-21 1998-12-21 Synchronous flyback converter SE517220C2 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
SE9804454A SE517220C2 (en) 1998-12-21 1998-12-21 Synchronous flyback converter
TW088116943A TW456096B (en) 1998-12-21 1999-10-01 A synchronous flyback converter
EP99964889A EP1145415A1 (en) 1998-12-21 1999-12-16 A synchronous flyback converter
CNB99814777XA CN1135682C (en) 1998-12-21 1999-12-16 Synchronous flyback converter
CA002356187A CA2356187A1 (en) 1998-12-21 1999-12-16 A synchronous flyback converter
PCT/SE1999/002390 WO2000038305A1 (en) 1998-12-21 1999-12-16 A synchronous flyback converter
KR1020017007808A KR20010093856A (en) 1998-12-21 1999-12-16 A synchronous flyback converter
AU30920/00A AU3092000A (en) 1998-12-21 1999-12-16 A synchronous flyback converter
JP2000590281A JP2002534049A (en) 1998-12-21 1999-12-16 Synchronous flyback converter
HK02105160.1A HK1043447B (en) 1998-12-21 2002-07-11 A synchronous flyback converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9804454A SE517220C2 (en) 1998-12-21 1998-12-21 Synchronous flyback converter

Publications (3)

Publication Number Publication Date
SE9804454D0 true SE9804454D0 (en) 1998-12-21
SE9804454L SE9804454L (en) 2000-06-22
SE517220C2 SE517220C2 (en) 2002-05-07

Family

ID=20413780

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9804454A SE517220C2 (en) 1998-12-21 1998-12-21 Synchronous flyback converter

Country Status (10)

Country Link
EP (1) EP1145415A1 (en)
JP (1) JP2002534049A (en)
KR (1) KR20010093856A (en)
CN (1) CN1135682C (en)
AU (1) AU3092000A (en)
CA (1) CA2356187A1 (en)
HK (1) HK1043447B (en)
SE (1) SE517220C2 (en)
TW (1) TW456096B (en)
WO (1) WO2000038305A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100568319B1 (en) * 2004-10-22 2006-04-05 삼성전기주식회사 Flyback converter with synchronous rectifier
DE602007011834D1 (en) * 2007-05-30 2011-02-17 Power One Italy Spa SYNCHRONOUS TRANSFORMERS WITH MULTIPLE OUTPUTS
CN101359873B (en) * 2007-08-02 2010-09-08 洋鑫科技股份有限公司 Flyback voltage converter having self-driving synchronous rectifier
AT14080U1 (en) * 2013-08-12 2015-04-15 Tridonic Gmbh & Co Kg Control circuit for a control gear for bulbs

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3422777A1 (en) * 1984-06-20 1986-01-02 ANT Nachrichtentechnik GmbH, 7150 Backnang Controlled rectifier element, which is connected to an inductor, and its use
US4870555A (en) * 1988-10-14 1989-09-26 Compaq Computer Corporation High-efficiency DC-to-DC power supply with synchronous rectification
JP2845188B2 (en) * 1995-12-11 1999-01-13 サンケン電気株式会社 DC-DC converter
US5818704A (en) * 1997-04-17 1998-10-06 International Rectifier Corporation Synchronizing/driving circuit for a forward synchronous rectifier

Also Published As

Publication number Publication date
EP1145415A1 (en) 2001-10-17
WO2000038305A9 (en) 2000-12-07
AU3092000A (en) 2000-07-12
KR20010093856A (en) 2001-10-29
CN1331863A (en) 2002-01-16
CA2356187A1 (en) 2000-06-29
JP2002534049A (en) 2002-10-08
CN1135682C (en) 2004-01-21
SE517220C2 (en) 2002-05-07
HK1043447B (en) 2004-12-03
SE9804454L (en) 2000-06-22
HK1043447A1 (en) 2002-09-13
TW456096B (en) 2001-09-21
WO2000038305A1 (en) 2000-06-29

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Legal Events

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