EP2089961A1 - Convertisseur cc/cc autohétérodyne et procédé à cet effet - Google Patents

Convertisseur cc/cc autohétérodyne et procédé à cet effet

Info

Publication number
EP2089961A1
EP2089961A1 EP06807792A EP06807792A EP2089961A1 EP 2089961 A1 EP2089961 A1 EP 2089961A1 EP 06807792 A EP06807792 A EP 06807792A EP 06807792 A EP06807792 A EP 06807792A EP 2089961 A1 EP2089961 A1 EP 2089961A1
Authority
EP
European Patent Office
Prior art keywords
bipolar transistor
electrode
coupled
winding
timer
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.)
Ceased
Application number
EP06807792A
Other languages
German (de)
English (en)
Inventor
Peter Niedermeier
Bernd Rudolph
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.)
Osram GmbH
Original Assignee
Osram 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 Osram GmbH filed Critical Osram GmbH
Publication of EP2089961A1 publication Critical patent/EP2089961A1/fr
Ceased 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
    • H02M3/338—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 a self-oscillating arrangement
    • 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
    • H02M3/338—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 a self-oscillating arrangement
    • H02M3/3382—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 a self-oscillating arrangement in a push-pull circuit arrangement

Definitions

  • the present invention relates to a self-oscillating DC-DC converter having a first and a second input terminal for applying a DC input voltage, a first and a second bipolar transistor, each bipolar transistor having a control electrode, a reference electrode and a working electrode, at least one coupling capacitor, wherein a first Switching path is formed by the distance working electrode - reference electrode of the first bipolar transistor, and a second switching path through the distance working electrode - reference electrode of the second bipolar transistor, wherein the first and the second switching path with respect to the DC input voltage connected in series, a rectifier whose output to a first and a second output terminal for providing a DC output voltage is coupled. It also relates to a method of providing a DC voltage to such a self-oscillating DC-DC converter.
  • the present invention is based on the finding that the variations of the switch-off delay, which occur in a barely controllable timing compared to MOSFET transistors in bipolar transistors, can be counteracted effectively by controlling the bipolar transistors via a special, pulse-shaping timer he follows.
  • the present invention in particular, overcomes the problem of variations in the current gain of various transistors within a type.
  • the reference electrode of the first bipolar transistor is coupled to a first reference potential and the reference electrode of the second bipolar transistor to a second reference potential, wherein parallel to the distance control electrode - reference potential of the first bipolar transistor, a first diode and parallel to the distance control electrode - reference potential of the second bipolar transistor a second diode is coupled, wherein the first and the second diode in conjunction with the respective bipolar transistors lent demagnetization of the transformer lent (freewheeling phase).
  • Fig. 2 shows the time course of some sizes using the example of the switch Ql of Fig. 1.
  • the time course of the corresponding variables at the switch Q2 corresponds to those shown in Fig. 2, it is only offset by half a period.
  • the rectangular shape of the collector-emitter voltage U CE of the transistor Ql is clearly visible.
  • the voltage U CE returns to almost zero.
  • the regions of negative amplitude of the collector current Ic are due to the inverse or freewheeling current
  • the negative amplitude of the base current I B at time tl results from the outflow of storage charge from the base terminal when the base-emitter forward voltage drops below Ü BE over R3 and is used to clear out charge carriers from the base of the switch Ql and thus a defined shutdown of the transistor Ql.

Landscapes

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

Abstract

La présente invention concerne un convertisseur CC/CC autohétérodyne muni de deux bornes d'entrée, d'un premier (Q1) et d'un deuxième transistor (Q2) bipolaire, selon l'invention, chaque transistor (Q1, Q2) bipolaire présentant une électrode de commande, une électrode de référence et un collecteur. Le convertisseur est également muni d'au moins un premier condensateur (C4, C5) de couplage, selon l'invention, une première ainsi qu'une deuxième section de commutation étant formées par la section collecteur - électrode de référence du premier ou du deuxième transistor (Q1, Q2) bipolaire. Toujours selon l'invention, les deux sections de commutation sont branchées en série. Le convertisseur est également muni d'un redresseur (GL1) dont la sortie est connectée à deux bornes de sortie. Selon l'invention, le convertisseur CC/CC comprend en plus : un transformateur (TRI) comprenant un enroulement (PW) primaire, un enroulement (SW) secondaire et au moins un enroulement (StW1; StW2) de commande. Selon l'invention, l'enroulement primaire est connecté entre une liaison des deux sections de commutation et le condensateur (C4; C5) de couplage, l'enroulement secondaire est connecté avec l'entrée du redresseur (GL1) et à chaque transistor (Q1, Q2) bipolaire est associé un enroulement de commande qui est connecté à l'électrode de commande du transistor bipolaire correspondant. Le convertisseur CC/CC comprend également au moins un élément (Z1, Z2) de temporisation qui est connecté entre l'enroulement de commande correspondant et l'électrode de commande. L'invention concerne en outre un procédé de fonctionnement du convertisseur CC/CC.
EP06807792A 2006-11-09 2006-11-09 Convertisseur cc/cc autohétérodyne et procédé à cet effet Ceased EP2089961A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2006/068276 WO2008055545A1 (fr) 2006-11-09 2006-11-09 Convertisseur cc/cc autohétérodyne et procédé à cet effet

Publications (1)

Publication Number Publication Date
EP2089961A1 true EP2089961A1 (fr) 2009-08-19

Family

ID=38178048

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06807792A Ceased EP2089961A1 (fr) 2006-11-09 2006-11-09 Convertisseur cc/cc autohétérodyne et procédé à cet effet

Country Status (5)

Country Link
US (1) US8369109B2 (fr)
EP (1) EP2089961A1 (fr)
KR (1) KR20090087048A (fr)
CN (1) CN101523711A (fr)
WO (1) WO2008055545A1 (fr)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8369109B2 (en) * 2006-11-09 2013-02-05 Osram Gesellschaft Mit Beschrankter Haftung Self-oscillating bipolar transistor DC/AC/DC converter using a pulse forming timer
ATE517461T1 (de) * 2008-01-18 2011-08-15 Osram Gmbh Buck-konverter zum bereitstellen eines stroms für mindestens eine led
US7990070B2 (en) * 2009-06-05 2011-08-02 Louis Robert Nerone LED power source and DC-DC converter
DE102009042433B4 (de) * 2009-09-22 2011-09-15 Osram Gesellschaft mit beschränkter Haftung Schaltungsanordnung zum Betreiben mindestens einer LED
US9178415B1 (en) 2009-10-15 2015-11-03 Cirrus Logic, Inc. Inductor over-current protection using a volt-second value representing an input voltage to a switching power converter
US8487591B1 (en) 2009-12-31 2013-07-16 Cirrus Logic, Inc. Power control system with power drop out immunity and uncompromised startup time
GB201013847D0 (en) * 2010-08-18 2010-09-29 Texas Instr Cork Ltd Power converter control arrangement
US9510401B1 (en) 2010-08-24 2016-11-29 Cirrus Logic, Inc. Reduced standby power in an electronic power control system
EP2715924A1 (fr) 2011-06-03 2014-04-09 Cirrus Logic, Inc. Détermination de données de commande à partir d'une détection côté primaire d'une tension côté secondaire dans un convertisseur de puissance de commutation
CN104145412B (zh) 2011-12-14 2016-12-21 塞瑞斯逻辑公司 用于与调光器对接的自适应电流控制定时和响应电流控制
US9118241B2 (en) 2012-06-13 2015-08-25 Intel Deutschland Gmbh Switched-mode power supply and a two-phase DC to DC converter having switches and a filter that deliver current from a node among converter stages
US9048730B2 (en) * 2012-06-13 2015-06-02 Intel Mobile Communications GmbH Switched mode power supply and a method for operating a switched mode power supply
US9035627B2 (en) 2012-06-13 2015-05-19 Intel Mobile Communications GmbH Switched mode power supply employing first and second feedback signals and a method of operating thereof
US9520794B2 (en) 2012-07-25 2016-12-13 Philips Lighting Holding B.V Acceleration of output energy provision for a load during start-up of a switching power converter
CN105247956A (zh) 2013-03-07 2016-01-13 皇家飞利浦有限公司 使用开关功率变换器的次级侧传导时间参数向负载提供能量
US9185767B2 (en) * 2013-04-19 2015-11-10 Cirrus Logic, Inc. Self-oscillating resonant converter-based light emitting diode (LED) driver
US9253833B2 (en) 2013-05-17 2016-02-02 Cirrus Logic, Inc. Single pin control of bipolar junction transistor (BJT)-based power stage
US9735671B2 (en) 2013-05-17 2017-08-15 Cirrus Logic, Inc. Charge pump-based drive circuitry for bipolar junction transistor (BJT)-based power supply
US9504106B2 (en) 2013-07-29 2016-11-22 Cirrus Logic, Inc. Compensating for a reverse recovery time period of a bipolar junction transistor (BJT) in switch-mode operation of a light-emitting diode (LED)-based bulb
WO2015017317A2 (fr) 2013-07-29 2015-02-05 Cirrus Logic, Inc. Deux bornes d'excitation de transistor à jonctions bipolaires (bjt) pour fonctionnement en mode commutation d'une ampoule électrique à base de diode électroluminescente (del)
EP3114900B1 (fr) 2014-03-05 2024-02-21 Signify Holding B.V. Circuit de démarrage de mode de commutation à commande numérique pour lampes à del
US9214862B2 (en) 2014-04-17 2015-12-15 Philips International, B.V. Systems and methods for valley switching in a switching power converter
US9326332B1 (en) 2014-10-08 2016-04-26 Koninklijke Philips N.V. Ripple reduction in light emitting diode (LED)-based light bulb through increased ripple on an energy storage capacitor
US9325236B1 (en) 2014-11-12 2016-04-26 Koninklijke Philips N.V. Controlling power factor in a switching power converter operating in discontinuous conduction mode
US9504118B2 (en) 2015-02-17 2016-11-22 Cirrus Logic, Inc. Resistance measurement of a resistor in a bipolar junction transistor (BJT)-based power stage
US9609701B2 (en) 2015-02-27 2017-03-28 Cirrus Logic, Inc. Switch-mode drive sensing of reverse recovery in bipolar junction transistor (BJT)-based power converters
US9603206B2 (en) 2015-02-27 2017-03-21 Cirrus Logic, Inc. Detection and control mechanism for tail current in a bipolar junction transistor (BJT)-based power stage

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EP1001520A2 (fr) * 1998-11-10 2000-05-17 Sony Corporation Circuit d'alimentation de puissance à découpage

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Title
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Also Published As

Publication number Publication date
KR20090087048A (ko) 2009-08-14
US8369109B2 (en) 2013-02-05
US20100073965A1 (en) 2010-03-25
CN101523711A (zh) 2009-09-02
WO2008055545A1 (fr) 2008-05-15

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