WO2014202267A3 - Snubber circuit for a dc/dc voltage converter - Google Patents

Snubber circuit for a dc/dc voltage converter Download PDF

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Publication number
WO2014202267A3
WO2014202267A3 PCT/EP2014/058869 EP2014058869W WO2014202267A3 WO 2014202267 A3 WO2014202267 A3 WO 2014202267A3 EP 2014058869 W EP2014058869 W EP 2014058869W WO 2014202267 A3 WO2014202267 A3 WO 2014202267A3
Authority
WO
WIPO (PCT)
Prior art keywords
synchronous rectifier
voltage
side winding
capacitor
coupled
Prior art date
Application number
PCT/EP2014/058869
Other languages
German (de)
French (fr)
Other versions
WO2014202267A2 (en
Inventor
Martin Trunk
David Tastekin
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2014202267A2 publication Critical patent/WO2014202267A2/en
Publication of WO2014202267A3 publication Critical patent/WO2014202267A3/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
    • 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
    • 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H02M1/34—Snubber circuits
    • H02M1/346—Passive non-dissipative snubbers
    • 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 DC/DC voltage converter, comprising a transformer having a primary-side winding and a secondary-side winding having a center tap, an output inductor, which is connected to the center tap and a first output connection, a synchronous rectifier circuit having two synchronous rectifier switches, which are each connected to the end-side taps of the secondary-side winding and which are designed to produce a rectified output voltage at a second output connection, and a snubber circuit connected by means of the synchronous rectifier circuit. The snubber circuit has two diodes, which are each coupled to the end-side taps of the secondary-side winding, a capacitor, which is coupled to the two diodes and which is designed to store resonant oscillation energy in the synchronous rectifier circuit, and a component having a Zener characteristic, wherein the component having the Zener characteristic is coupled between the first output connection and the capacitor and has a breakdown voltage that is less than the difference between the maximum permissible voltage of the capacitor and the maximum value of the rectified output voltage.
PCT/EP2014/058869 2013-06-17 2014-04-30 Snubber circuit for a dc/dc voltage converter WO2014202267A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013211258.0 2013-06-17
DE102013211258.0A DE102013211258A1 (en) 2013-06-17 2013-06-17 Snubber circuit for DC-DC converter

Publications (2)

Publication Number Publication Date
WO2014202267A2 WO2014202267A2 (en) 2014-12-24
WO2014202267A3 true WO2014202267A3 (en) 2015-04-02

Family

ID=50628826

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/058869 WO2014202267A2 (en) 2013-06-17 2014-04-30 Snubber circuit for a dc/dc voltage converter

Country Status (2)

Country Link
DE (1) DE102013211258A1 (en)
WO (1) WO2014202267A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11646652B1 (en) * 2022-02-09 2023-05-09 L3Harris Technologies, Inc. Switching power supply rectifier with voltage clamps to clamp voltage transients on output coil of transformer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011076573A1 (en) * 2011-05-27 2012-11-29 Robert Bosch Gmbh Snubber circuit for DC-DC converter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5898581A (en) 1997-08-27 1999-04-27 Lucent Technologies Inc. Active snubber for buck-based converters and method of operation thereof
US6771521B1 (en) 2003-02-20 2004-08-03 Delta Electronics, Inc. Active snubber for synchronous rectifier

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011076573A1 (en) * 2011-05-27 2012-11-29 Robert Bosch Gmbh Snubber circuit for DC-DC converter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GARCIA F: "SAVE ENERGY IN SNUBBER NETWORK", ELECTRONIC DESIGN, PENTON MEDIA, CLEVELAND, OH, US, vol. 43, no. 9, 1 May 1995 (1995-05-01), pages 118, XP000507687, ISSN: 0013-4872 *

Also Published As

Publication number Publication date
WO2014202267A2 (en) 2014-12-24
DE102013211258A1 (en) 2014-12-18

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