EP2249627A2 - Dispositif de commutation et procédé de fonctionnement de lampes à décharge - Google Patents

Dispositif de commutation et procédé de fonctionnement de lampes à décharge Download PDF

Info

Publication number
EP2249627A2
EP2249627A2 EP10160600A EP10160600A EP2249627A2 EP 2249627 A2 EP2249627 A2 EP 2249627A2 EP 10160600 A EP10160600 A EP 10160600A EP 10160600 A EP10160600 A EP 10160600A EP 2249627 A2 EP2249627 A2 EP 2249627A2
Authority
EP
European Patent Office
Prior art keywords
switch
circuit arrangement
voltage
arrangement according
mains
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.)
Withdrawn
Application number
EP10160600A
Other languages
German (de)
English (en)
Inventor
Maximilian Schmidl
Walter Limmer
Alois Braun
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 EP2249627A2 publication Critical patent/EP2249627A2/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/282—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices
    • H05B41/285—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2851—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/38—Switched mode power supply [SMPS] using boost topology

Definitions

  • the invention relates to a circuit arrangement for operating discharge lamps having an input, to which a mains voltage from a supply network can be connected, and an output, to which at least one discharge lamp can be connected, wherein the circuit arrangement comprises an up-converter.
  • the invention relates to a circuit arrangement for operating discharge lamps according to the preamble of the main claim.
  • Many circuit arrangements for operating discharge lamps have a power factor correction circuit in order to convert the input voltage into a suitable often regulated DC voltage, which is referred to as intermediate circuit voltage and is then input to the inverter.
  • the power factor correction circuit which is usually an up-converter from the circuit topology, causes a sinusoidal current consumption of the entire arrangement and at the same time a regulated intermediate circuit voltage of suitable height.
  • These circuits are incorporated in low and high intensity discharge lamp control gear, and are generally powered by an AC line voltage.
  • the converter switch is disposed between the forward and return current paths of the circuit, that is, it is not directly in the main current path.
  • such circuit arrangements usually have a so-called intermediate circuit capacitor, which is connected between the two output terminals of the voltage converter or the power factor correction circuit respectively between the input terminals of the inverter, and also serves as a support capacitance of the voltage converter. If now the operating device is switched on, that is to say the entire circuit arrangement is connected to the mains, then the intermediate circuit capacitor, ie the boosting capacitance of the boost converter, is charged via the converter current path of the step-up converter via the converter choke and the boost diode in a very short time, resulting in a very high inrush current, especially when the power happens accidentally in the network peak.
  • the intermediate circuit capacitor ie the boosting capacitance of the boost converter
  • the capacitor is charged via just a mains wave or even just a half-wave.
  • the term "mains peak” here means the instant of the (positive or negative) peak value of the mains voltage.
  • the current path through which the backup capacitance charges is referred to below as the charging current path.
  • the level of the inrush current can be a multiple (measured up to 200x) of the nominal operating current.
  • a circuit arrangement proposed in the current path of the converter has a parallel circuit of a resistor and a thyristor.
  • the thyristor is not conducting and only the resistor in the current path is active. This resistor charges the DC link capacitor slowly and with less current. If the link capacitor charged to a predetermined voltage, the thyristor is conductive, and bridges the resistance, so that the losses are kept low during operation.
  • the circuit arrangement requires many additional components, and has the disadvantage of high power dissipation at the time of switch-on, since a power not to be underestimated falls on the current-limiting resistor.
  • the object is achieved according to the invention with a circuit arrangement for operating discharge lamps having an input to which a mains alternating voltage can be connected from a supply network, an output to which at least one discharge lamp can be connected, a support capacitance disposed between the input and the output and a switch residing in a charging current path of the backup capacitance, the circuitry timing the switch at its turn-on for periodically interrupting the charging current path of the backup capacitance for a predetermined time. By cycling the switch, a beneficial slow charge of the backup capacitance is achieved, which results in a significant reduction of the inrush current.
  • a slow charge of the support capacity of the boost converter is to be understood in the following charging over a longer period than a network half-wave.
  • a predetermined current is not exceeded, i. that the current absorbed by the circuit has an upper limit during the charging process.
  • This upper limit may e.g. be the rated current consumption of the circuit.
  • the switch provides an additional switch to the mandatory converter switch in the boost converter when the circuitry has an up-converter.
  • the switch is best turned on at a low instantaneous line voltage. In this case, it can be switched on in terms of time in each case in a zero crossing of the mains voltage, and be switched off again before a subsequent peak voltage of the mains voltage. However, it can also be switched on in terms of time in each case after a peak voltage of the mains voltage, and be switched off again in the subsequent zero crossing of the mains voltage. Finally, it can be switched on in terms of time in each case after a peak voltage of the mains voltage, and before a following Peak voltage ⁇ of the mains voltage are switched off again. It is important here that the switch is turned on at a time at which the instantaneous mains voltage is only a small amount greater than the voltage across the intermediate circuit capacitor U C1 . By this measure, the driving voltage is low and the resulting current is small.
  • the turn-on of the switch increases advantageously at the same switch-on (based on the mains phase) of a zero crossing of the mains voltage to the subsequent zero crossing of the mains voltage. This allows the capacitor to be charged in even increments up to the peak voltage ⁇ of the mains voltage.
  • the switch-off time of the switch preferably depends on a voltage increase ⁇ U of the voltage applied to the support capacitance. In order to increase the capacitor voltage U C1 by the same voltage ⁇ U every time it is charged, the off-time should become proportional to 1 ⁇ ⁇ arcsin ⁇ ⁇ U + U C ⁇ 1 U ⁇ be.
  • the switch is advantageously arranged in series with the backup capacitance, in the presence of an up-converter between the input terminals of the boost converter and the power factor correction circuit and the output terminals of the rectifier. This has the advantage that the switch is loaded only with the ripple current of the capacitor and the losses during operation are thus minimized.
  • the switch can also be arranged in the charging current path. As a result, the flexibility in the arrangement of the switch is increased.
  • the switch may be a transistor, e.g. a metal oxide field effect transistor (MOS-FET) or a bipolar transistor.
  • MOS-FET metal oxide field effect transistor
  • the switch can also be a thyristor.
  • Electronic switches have the advantage of great robustness and operational reliability at a low cost.
  • Fig. 1 shows a first embodiment of the circuit arrangement according to the invention in which the transistor Q2 is arranged in series for supporting capacity between the output terminals of the boost converter 10.
  • This arrangement has the advantage that the transistor Q2 is simple and inexpensive to drive, since it has direct reference to the circuit ground, that is the potential of the output A-2.
  • the transistor Q2 is not in the main current path of the boost converter 10.
  • the main current path of the boost converter 10 is the path between the inputs E-1, E-2 and the outputs A-1, A-2.
  • the majority of the current flows, ie from E-1 (E-2) to A-1 via D1 / D2, L1 and D5 and from E-2 (E-1) via D3 / D4 to A-2.
  • the transistor Q2 here is a MOS-FET which is driven by the control circuit (not shown) of the boost converter.
  • the other topology corresponds to a usual up-converter.
  • the output terminals of the boost converter 10 are connected to an inverter 20 whose output is in turn connected to a discharge lamp 5.
  • Fig. 2 shows in dashed lines the possible switch positions of the transistor Q2 in the up-converter 10. Only in one position must a transistor be present. Positions 1-6 offer greater flexibility over specific circuitry requirements, but the transistor must carry the entire transformer current, resulting in higher losses, respectively higher component costs are the result. In this regard, the positions 3-7 are particularly unfavorable, since here the transistor must carry the high-frequency peak or peak current of the converter and possible interference currents of the converter. The positions 1 and 2 are significantly better here, since the switch is protected by the capacitor C2, which intercepts higher-frequency voltage and current peaks. If the transistor is arranged at one of the positions 1, 2, 3 or 6, it can simultaneously serve with appropriate activation as protection for the converter transistor Q1 in the case of overvoltage pulses.
  • Fig. 3 shows an example of a network synchronous clocked operation of the transistor Q2 when switching the circuit arrangement according to the invention.
  • the signal U net is the mains voltage
  • S T1 is the switching signal for the transistor Q1.
  • I C1 is the charging current in the backup capacitor C1
  • U C1 is the voltage to which the capacitor is charged.
  • This U t1 corresponds to the ⁇ U, which defines the further charging of the capacitor C1 in the following passes as a fixed quantity.
  • the time interval t 2 is defined in this example so that the capacitor is always charged by a voltage ⁇ U.
  • ⁇ U is a fixed value, eg 20V.
  • the capacitor C1 is not further charged by a respective fixed voltage .DELTA.U, but the duty cycle of the transistor Q2 is increased by a fixed period of time.
  • the respective increase in the charging voltage of the capacitor is different, because the mains voltage follows a sine function.
  • the criterion for terminating the inrush current limiting operation may be similar to the first variant, the residual voltage .DELTA.U, by which the capacitor voltage U C1 differs from the mains peak voltage ist is then a predetermined fixed voltage, for example 25V.
  • the resulting current consumption is correspondingly lower. Due to the network synchronous clocking, which starts the charging of the capacitor in a zero crossing of the mains voltage, the voltage swing between mains voltage and capacitor voltage always moves in a predefined voltage range, and the resulting charging current is correspondingly small. With an appropriate configuration of the transistor turn-on times, the resulting current consumption can be adjusted so that it is not greater than the current consumption in rated operation of the circuit arrangement.
  • Fig. 4 shows a flowchart illustrating a variant of the executed by the circuit arrangement method.
  • the charging voltage U C1 of the capacitor may still something be lower than the mains peak voltage ⁇ , since with the final turn on of the transistor Q2 still a last charge cycle takes place.
  • the transistor is switched on permanently and the circuit arrangement changes into normal lamp operation.

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Inverter Devices (AREA)
EP10160600A 2009-05-04 2010-04-21 Dispositif de commutation et procédé de fonctionnement de lampes à décharge Withdrawn EP2249627A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009019904A DE102009019904A1 (de) 2009-05-04 2009-05-04 Schaltungsanordnung und Verfahren zum Betreiben von Entladungslampen

Publications (1)

Publication Number Publication Date
EP2249627A2 true EP2249627A2 (fr) 2010-11-10

Family

ID=42338177

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10160600A Withdrawn EP2249627A2 (fr) 2009-05-04 2010-04-21 Dispositif de commutation et procédé de fonctionnement de lampes à décharge

Country Status (5)

Country Link
US (1) US8618739B2 (fr)
EP (1) EP2249627A2 (fr)
KR (1) KR20100120090A (fr)
CN (1) CN101883465B (fr)
DE (1) DE102009019904A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3958420A1 (fr) * 2017-02-13 2022-02-23 Tridonic GmbH & Co. KG Circuit de limitation de courant transitoire dans un bloc d'alimentation

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130138215A (ko) * 2010-09-22 2013-12-18 오스람 게엠베하 고압 방전 램프를 시동시키기 위한 방법
CN102751881B (zh) * 2011-04-02 2014-12-10 英飞特电子（杭州）股份有限公司 一种两线调光器的辅助电源电路
WO2015140825A1 (fr) * 2014-03-17 2015-09-24 Meta System S.P.A. Étage d'alimentation électrique d'un appareil électrique, en particulier chargeur de batterie destiné à charger les batteries de véhicules électriques
DE202017100740U1 (de) * 2017-02-13 2018-05-15 Tridonic Gmbh & Co Kg Schaltung zur Einschaltstrombegrenzung bei einem Netzteil
AT17794U1 (de) * 2017-02-13 2023-03-15 Tridonic Gmbh & Co Kg Schaltung zur Einschaltstrombegrenzung bei einem Netzteil

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0671867A2 (fr) 1994-03-11 1995-09-13 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Circuit d'alimentation de lampes à décharge

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4434395A (en) * 1981-02-25 1984-02-28 Sharp Kabushiki Kaisha Solar cell power supply circuit
DE3625499A1 (de) 1986-03-19 1987-10-15 Wolfgang Dipl Ing Renner Zuendgeraet fuer netzunabhaengig versorgte hochdruck-entladungslampen
WO1989006834A1 (fr) * 1988-01-25 1989-07-27 Seiko Epson Corporation Montre electronique pourvue d'un generateur de courant
US5262931A (en) * 1991-07-19 1993-11-16 Powering, Inc. Power converter
US5719473A (en) * 1994-03-11 1998-02-17 Patent-Treuhand-Gelsellschaft F. Elektrische Gluehlampen Mbh High frequency operating circuit with in-rush current protection for operation of discharge lamps
KR100467875B1 (ko) * 1997-07-22 2005-01-24 파텐트-트로이한트-게젤샤프트 퓌어 엘렉트리쉐 글뤼람펜 엠베하 펄스 전압 시퀀스 발생 방법 및 그 회로 장치
WO2001067828A1 (fr) * 2000-03-09 2001-09-13 Mitsubishi Denki Kabushiki Kaisha Procede et circuit de separations de signaux y-c
US6304460B1 (en) * 2000-05-05 2001-10-16 Slobodan Cuk Switching DC-to-DC converter utilizing a soft switching technique
US7102251B2 (en) * 2003-08-22 2006-09-05 Distributed Power, Inc. Bi-directional multi-port inverter with high frequency link transformer
DE10348210A1 (de) * 2003-10-16 2005-05-12 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Hochsetzsteller mit Leistungsfaktorkorrektur
DE202005003632U1 (de) 2005-03-03 2006-07-13 Bag Electronics Gmbh Zündschaltungsanordnung mit erhöhter Ausfallsicherheit
WO2006120641A2 (fr) * 2005-05-10 2006-11-16 Koninklijke Philips Electronics N.V. Procede et systeme de gradation de tension universelle de secteur
US7511466B2 (en) * 2006-04-19 2009-03-31 System General Corp. Method and apparatus for predicting discharge time of magnetic device for power converter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0671867A2 (fr) 1994-03-11 1995-09-13 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Circuit d'alimentation de lampes à décharge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3958420A1 (fr) * 2017-02-13 2022-02-23 Tridonic GmbH & Co. KG Circuit de limitation de courant transitoire dans un bloc d'alimentation
EP3580824B1 (fr) * 2017-02-13 2023-06-07 Tridonic GmbH & Co KG Circuit de limitation du courant d'appel pour un bloc d'alimentation

Also Published As

Publication number Publication date
US20100277093A1 (en) 2010-11-04
CN101883465A (zh) 2010-11-10
CN101883465B (zh) 2015-03-25
KR20100120090A (ko) 2010-11-12
DE102009019904A1 (de) 2010-11-25
US8618739B2 (en) 2013-12-31

Similar Documents

Publication Publication Date Title
DE102009036861B4 (de) Verfahren zur Regelung eines Spannungswandlers, Spannungswandler sowie Betriebsgerät mit einem Spannungswandler
EP1603219B1 (fr) Procédé et dispositif pour la correction du facteur de puissance
DE19545154C2 (de) Stromversorgungseinrichtung
EP2249627A2 (fr) Dispositif de commutation et procédé de fonctionnement de lampes à décharge
EP1715582A1 (fr) Agencement de circuit destiné à piloter un commutateur de puissance électrique à haute tension
WO2007124518A1 (fr) Pontage d'un transformateur abaisseur dans un convertisseur de courant d'une installation solaire
DE102012007477A1 (de) Verfahren zum Betreiben eines LLC-Resonanzwandlers für ein Leuchtmittel, Wandler und LED-Konverter
DE10303246B3 (de) Ansteuerschaltung für einen Schalter in einem Schaltwandler und Verfahren zur Ansteuerung eines Schalters in einem Schaltwandler
DE112017007493T5 (de) Halbleiterbauelement ansteuerungsverfahren und treibervorrichtung und leistungswandlergerät
DE102016111503A1 (de) Schaltungsvorrichtung, Beleuchtungsvorrichtung und Verwendung derselben in einem Fahrzeug
EP2514271B1 (fr) Procédé et circuit pour faire fonctionner un 'éclairage électrique
DE102005045552B4 (de) Schaltungsanordnung
EP3174204B1 (fr) Procédé et dispositif de commande d'un élément de commande électrique ou électronique
EP1901592A1 (fr) Appareil électrique doté d'une commande à onduleur asymétrique
DE102015214631B3 (de) Dimmvorrichtung und Verfahren zur Leistungssteuerung einer Leuchteinrichtung
EP2784931A1 (fr) Procédé et circuit de commande destinés à la commande d'un moteur électrique sans brosse
EP0757420B1 (fr) Ballast électronique avec limitation du courant d'appel et protection contre les surtensions
DE102015200249A1 (de) Versorgungsschaltung zur Versorgung eines Schweißgerätes
DE19722124A1 (de) Schaltungsanordnung zum Betreiben elektrischer Glühlampen
LU501001B1 (de) Verfahren zum Bereitstellen von sinusförmigen Phasenströmen mit Ansteuerung und Ladung
DE102018220247A1 (de) Leistungsschalteranordnung
DE3925654A1 (de) Steuergeraet fuer wenigstens eine entladungslampe
DE102022112757B4 (de) Intelligenter halbleiterschalter mit integrierter strommessfunktion
AT18274U1 (de) Synchronkonverter mit Frequenzstabiler Regelung
DE102009043611A1 (de) Elektronisches Vorschaltgerät und Verfahren zum Betreiben mindestens einer Entladungslampe

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

AX Request for extension of the european patent

Extension state: AL BA ME RS

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: OSRAM AG

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: OSRAM GMBH

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: OSRAM GMBH

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20161101