IN2014DN03129A - - Google Patents

Info

Publication number
IN2014DN03129A
IN2014DN03129A IN3129DEN2014A IN2014DN03129A IN 2014DN03129 A IN2014DN03129 A IN 2014DN03129A IN 3129DEN2014 A IN3129DEN2014 A IN 3129DEN2014A IN 2014DN03129 A IN2014DN03129 A IN 2014DN03129A
Authority
IN
India
Prior art keywords
switching
control signals
boot
switching element
switching control
Prior art date
Application number
Inventor
Magnus Karlsson
Anders Kullman
Jonas Malmberg
Fredrik Wahledow
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
Publication of IN2014DN03129A publication Critical patent/IN2014DN03129A/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
    • H02M3/337—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 in push-pull configuration
    • H02M3/3376—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 in push-pull configuration with automatic control of output voltage or current
    • H02M3/3378—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 in push-pull configuration with automatic control of output voltage or current in a push-pull configuration of the parallel type
    • 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
    • H02M1/36—Means for starting or stopping converters
    • 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
    • H02M1/40—Means for preventing magnetic saturation
    • 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)
  • Power Conversion In General (AREA)

Abstract

An isolated switched mode power supply, SMPS, comprising: a switching controller (230) operable to generate startup switching control signals during start-up of the isolated SMPS (200), and operational switching control signals of period T during subsequent operation of the isolated SMPS (200); a transformer (110) having a primary winding (111); and a full-bridge drive circuit arranged to drive the primary winding (ill) of the transformer in response to the switching control signals. The full-bridge drive - circuit has: a first switching element (Q2); a boot-strap driving circuit (120) arranged to switch the first switching element (Q2) in response to the switching control signals, the boot-strap driving circuit having a boot-strap capacitor; and a second switching element (Q4) connected to the first switching element (Q2) and to the boot-strap driving circuit (120), and arranged to conduct a current to charge the boot-strap capacitor when switched ON in response to the switching control signals. The switching controller (230) is operable to start up the isolated SMPS by: determining a duty cycle D for the operational switching control signals based on a voltage (V t) at an output of the isolated SMPS; and generating the start-up switching control signals comprising a first voltage pulse of duration PI to temporarily switch ON the second switching element (Q4), and a subsequent second voltage pulse of duration P2 to temporarily switch ON the first switching element (Q2), wherein P1<P2 and P2<DT, where T is a switching period of the isolated SMPS, thereby allowing the boot-strap capacitor to be charged before the first switching element (Q2) is turned ON by the second voltage pulse.
IN3129DEN2014 2011-12-01 2011-12-01 IN2014DN03129A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2011/071488 WO2013079111A1 (en) 2011-12-01 2011-12-01 Start-up procedure for an isolated switched mode power supply

Publications (1)

Publication Number Publication Date
IN2014DN03129A true IN2014DN03129A (en) 2015-06-26

Family

ID=48484318

Family Applications (1)

Application Number Title Priority Date Filing Date
IN3129DEN2014 IN2014DN03129A (en) 2011-12-01 2011-12-01

Country Status (5)

Country Link
US (1) US8456867B1 (en)
EP (1) EP2786476B1 (en)
CN (1) CN103959626B (en)
IN (1) IN2014DN03129A (en)
WO (1) WO2013079111A1 (en)

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US8891268B2 (en) * 2010-02-19 2014-11-18 Texas Instruments Incorporated System and method for soft-starting an isolated power supply system
US8629631B1 (en) * 2011-07-21 2014-01-14 Cooper Technologies Company Method and system for improving start-up time of a light emitting diode (LED) driver at reduced input voltage
CN104205624B (en) * 2012-03-30 2018-05-15 英特尔公司 Low frequency converter with electrolytic capacitor
EP2722977A3 (en) * 2012-09-10 2018-01-03 OCT Circuit Technologies International Limited Method and apparatus for controlling a start-up sequence of a DC/DC Buck converter
WO2014131455A1 (en) * 2013-02-28 2014-09-04 Telefonaktiebolaget L M Ericsson (Publ) Forward-flyback topology switched mode power supply
US8975961B2 (en) * 2013-05-24 2015-03-10 Texas Instruments Incorporated Power amplifier control circuits
WO2015149887A1 (en) * 2014-03-31 2015-10-08 Telefonaktiebolaget L M Ericsson (Publ) Switched mode power supply output filter configuration
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FR3047855B1 (en) 2016-02-15 2018-03-16 Valeo Siemens Eautomotive France Sas DC / DC ISOLATED CONVERTER
WO2017168220A1 (en) 2016-03-28 2017-10-05 Telefonaktiebolaget Lm Ericsson (Publ) Controller for use with a power converter, and method of operating the same
US9812971B1 (en) 2016-08-12 2017-11-07 Infineon Technologies Austria Ag Transformer flux estimation and limiting in isolated DC-DC voltage converters
US10554138B2 (en) * 2016-10-25 2020-02-04 Infineon Technologies Austria Ag Flux limited fast transient response in isolated DC-DC converters
US10439500B2 (en) 2017-02-01 2019-10-08 Infineon Technologies Austria Ag Control of isolated power converters during transient load conditions
US10622908B2 (en) 2017-09-19 2020-04-14 Texas Instruments Incorporated Isolated DC-DC converter
US10432102B2 (en) 2017-09-22 2019-10-01 Texas Instruments Incorporated Isolated phase shifted DC to DC converter with secondary side regulation and sense coil to reconstruct primary phase
DE112019000870B4 (en) * 2018-04-02 2021-06-10 Rohm Co., Ltd. SWITCH CONTROL DEVICE
CN110868071B (en) 2018-08-28 2021-01-26 台达电子工业股份有限公司 Conversion device
US11687110B2 (en) * 2018-09-26 2023-06-27 Efficient Power Conversion Corporation Multi-channel pulse current generator with charging
CN111525803B (en) * 2019-02-01 2021-10-26 台达电子工业股份有限公司 Conversion device
CN111525802B (en) * 2019-02-01 2021-08-06 台达电子工业股份有限公司 Conversion device
CN110224580A (en) * 2019-05-09 2019-09-10 深圳欧陆通电子股份有限公司 A kind of starting-up method of digital power, boot-strap circuit and digital power
US11545905B2 (en) 2020-02-20 2023-01-03 Abl Ip Holding Llc Multi-stage driver system architecture
US11277005B2 (en) * 2020-02-20 2022-03-15 Abl Ip Holding Llc Programmable multi-stage driver system
US11575328B2 (en) 2020-02-20 2023-02-07 Abl Ip Holding Llc Programmable DC-DC driver system
WO2021217454A1 (en) * 2020-04-28 2021-11-04 武文静 Voltage bootstrap chip, low-light collection circuit and device, and control methods therefor
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CN116800090B (en) * 2023-08-21 2023-12-29 深圳市力生美半导体股份有限公司 Driving circuit of switching power supply and switching power supply

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Also Published As

Publication number Publication date
CN103959626A (en) 2014-07-30
EP2786476A1 (en) 2014-10-08
US8456867B1 (en) 2013-06-04
WO2013079111A1 (en) 2013-06-06
EP2786476B1 (en) 2019-11-06
US20130141945A1 (en) 2013-06-06
CN103959626B (en) 2017-12-01

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