EP2271187B1 - Steuerung und Messung der Funktionen eines elektronischen Vorschaltgerät - Google Patents

Steuerung und Messung der Funktionen eines elektronischen Vorschaltgerät Download PDF

Info

Publication number
EP2271187B1
EP2271187B1 EP10163702.3A EP10163702A EP2271187B1 EP 2271187 B1 EP2271187 B1 EP 2271187B1 EP 10163702 A EP10163702 A EP 10163702A EP 2271187 B1 EP2271187 B1 EP 2271187B1
Authority
EP
European Patent Office
Prior art keywords
current
switching transistor
electronic ballast
switching
lamp
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.)
Active
Application number
EP10163702.3A
Other languages
English (en)
French (fr)
Other versions
EP2271187A2 (de
EP2271187A3 (de
Inventor
Hannu Vihinen
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.)
Helvar Oy AB
Original Assignee
Helvar Oy AB
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=40825442&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2271187(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Helvar Oy AB filed Critical Helvar Oy AB
Publication of EP2271187A2 publication Critical patent/EP2271187A2/de
Publication of EP2271187A3 publication Critical patent/EP2271187A3/de
Application granted granted Critical
Publication of EP2271187B1 publication Critical patent/EP2271187B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14Circuit arrangements
    • H05B41/26Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28Circuit 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
    • H05B41/282Circuit 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
    • H05B41/285Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2851Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14Circuit arrangements
    • H05B41/26Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28Circuit 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
    • H05B41/295Circuit 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 and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps
    • H05B41/298Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2981Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
    • H05B41/2986Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions against internal abnormal circuit conditions
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14Circuit arrangements
    • H05B41/26Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28Circuit 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
    • H05B41/282Circuit 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
    • H05B41/2825Circuit 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 by means of a bridge converter in the final stage
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14Circuit arrangements
    • H05B41/26Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28Circuit 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
    • H05B41/288Circuit 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 and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
    • H05B41/292Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2921Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14Circuit arrangements
    • H05B41/26Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28Circuit 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
    • H05B41/295Circuit 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 and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps
    • H05B41/298Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2981Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions

Definitions

  • Tubular fluorescent lamps and HID lamps High Intensity Discharge are connected by way of electronic ballasts with a supply of electric power, receiving therefrom the energy needed thereby for illumination while being switched to the ON state.
  • the fluorescent tube of fluorescent lamps and HID lamps is filled with a gas, such as for example argon or krypton.
  • a gas such as for example argon or krypton.
  • the generation of light further requires "a drop” of mercury which gasifies in response to an electrical discharge, producing ultraviolet radiation as electricity discharges through the fluorescent lamp tube.
  • the fluorescent lamp tube has its inner surface coated with a fluorescent material, converting the ultraviolet radiation, which has been generated by the electrical discharge taking place in mercury vapor, into visible light.
  • the fluorescent lamp and the HID lamp comprise either an electronic ballast or a magnetic inductor.
  • magnetic inductors have been almost completely displaced by electronic ballasts.
  • the current generated in electronic ballasts and flowing through a fluorescent lamp tube is generally 20-100 kHz in frequency, most typically 50-60 kHz.
  • Measuring the current of a switching transistor set against earth potential represents prior known technology on the basis of several examples. In fact, this particular method has been and is currently used in a multitude of electronic ballasts available in the marketplace.
  • Publication WO2005/083872A1 comprises measuring the current of a first switching transistor set against earth potential, as well as the voltage of a midpoint between two switching transistors. However, no information can be obtained from this particular voltage about the current of a second switching transistor which is not set against earth potential. Accordingly, the signal produced in the process of measuring the voltage of said midpoint cannot be used as a signal on the basis of which said second switching transistor would be switched off in the event that its current exceeds a predetermined limit value.
  • Fig 3 of document EP 2 046 099 included as Fig 1 in the present application, shows an electronic ballast 102 connectable to a fluorescent tube 100.
  • the electronic ballast 102 has a control circuit 104 integrated therein so as to enable a measurement for providing separate measuring signals representing the currents of both an upper switching transistor Q1 and a lower switching transistor Q2.
  • the embodiment shown in Fig 3 of document EP 2 046 099 features a diode couple Q3a and Q3b, which enables a measurement of the current for an ignition capacitor C1 and measurements of the currents for the switching transistors Q1 and Q2 with one resistor R3.
  • Drawbacks in this embodiment include slowness in the establishment of measuring signals and thereby also in the status transitions of switching transistors based on said measuring signals, and instability in the magnitude of an ignition voltage established for the lamp.
  • Another drawback in this embodiment is that, especially with large manufacturing volumes in mass production, the cost of diodes becomes high.
  • An objective of the invention is to provide an electronic ballast assembly, which enables establishing a lamp ignition voltage in a rapid and controlled fashion.
  • a lamp according to the invention for producing illuminating radiation comprising an electronic ballast for establishing an ignition voltage for the lamp in order to initiate the production of illuminating radiation, said electronic ballast comprising at least two switching transistors Q1, Q2 for supplying current to at least one coil, which develops the lamp ignition voltage, and said electronic ballast having a control circuit integrated therewith.
  • the electronic ballast comprises at least two resistors R8, R10 set in a series connection at least relative to each other for measuring and/or regulating the currents of said at least two switching transistors Q1, Q2, said resistor R8 being in connection with the switching transistor Q2, and the resistor R10 being in a series connection with the resistorR8 and with a voltage source, and said electronic ballast comprising the series connection of said resistors R8, R10 for operating said control circuit in order to detect whether the current passing through the switching transistor Q1 or Q2 is overly high with respect to a limit current value set for the control circuit, and by operating said control circuit, for immediately switching off the control of that switching transistor Q1 or Q2 which switching transistor Q1 or Q2 has been found to have an overly high passing current and for immediately switching on the current of the other switching transistor Q1 or Q2.
  • the invention is based on having the electronic ballast comprise at least two resistors R8, R10 set in a series connection relative to each other for measuring and/or regulating the currents of at least two switching transistors Q1, Q2 in such a way that the resistor R8 is in connection with the switching transistor Q2 and the resistor R10 is in a series connection with the resistor R8 and with a voltage source.
  • the electronic ballast comprise at least two resistors R8, R10 set in a series connection relative to each other for measuring and/or regulating the currents of at least two switching transistors Q1, Q2 in such a way that the resistor R8 is in connection with the switching transistor Q2 and the resistor R10 is in a series connection with the resistor R8 and with a voltage source.
  • An advantage of the invention is that the establishment of a lamp ignition voltage is expedited in a stable manner.
  • the invention provides economic benefit in terms of the manufacturing costs of ballasts.
  • Fig. 2 shows a lamp of the invention, which enables measuring a peak current for both switching transistors Q1, Q2 and controlling the current pulse by pulse in such a way that, during the establishment of an ignition voltage for the lamp, the current remains essentially constant.
  • the lamp according to the invention makes use of a series connection of the resistors R8 and R10 to establish connections, on the basis of which the prior art use of diodes is replaced by a configuration of improved performance.
  • the lamp according to the invention includes an electronic ballast 102 comprising the resistors R8, R10 set in a series connection relative to each other for measuring and/or regulating the currents of the switching transistors Q1, Q2.
  • the resistor R8 is in connection with the switching transistor Q2 and with a comparator connection 112 included in a control circuit 104.
  • the resistor R10 is in a series connection with the resistor R8 and with a voltage source Vbus.
  • the electronic ballast 102 comprises the series connection of said resistors R8, R10 for operating the control circuit 104 through the intermediary of the comparator connection 112 for detecting whether an overly high current is passing through the switching transistor Q1 or Q2 to the control circuit 104.
  • control circuit 104 is operated for immediately switching off the control of that switching transistor Q1 or Q2 which switching transistor Q1 or Q2 has been found to have an overly high passing current and for immediately switching on the current of the other switching transistor Q1 or Q2.
  • the switching transistor Q1 or Q2 is supplied for example with a current in pulse form.
  • a current path 107 represents the route of current in the process of establishing a lamp ignition voltage preceding the lamp ignition as the switching transistor Q2 is supplied with a current in pulse form.
  • Fig. 3 shows currents during a switched-on state of the switching transistors Q1, Q2 as the ignition voltage is developing in the prior art embodiment of fig. 1 .
  • Fig. 4 shows signals 11 during a switched-on state of the switching transistors Q1, Q2 over a current path 105 while Q1 is on, and I2 over a current path 107 while Q2 is on, in the embodiment of fig. 2 according to the invention as the ignition voltage is developing.
  • a pulse form current Ik in fig. 4 represents the output of a current measuring comparator A1, which rises up when the current of either switching transistor Q1 or Q2 rises over a limit value 120 set for the control circuit 104 and indicated by a dashed line.
  • the regulation setup according to the invention enables controlling the current even upon the saturation of a coil L1.
  • the coil L1 is depicted in a distributed fashion as coils L1a, L1b and L1c.
  • Fig. 4 illustrates said currents I1 and I2 of the switching transistors Q1 and Q2, which are proportional to the voltage of a CS pin marked in figs. 2 and 5 in the size ratio of the resistors R8 and R10.
  • Designated in fig. 4 is also a reference voltage Vcomp. of the current measuring comparator A1. When this reference voltage is crossed, there will be a change in the output state of the current measuring comparator A1.
  • Fig. 5 shows an implementation according to a preferred embodiment of the invention for establishing a pulse-by-pulse current restriction for the switching transistors Q 1 and Q 2 .
  • Fig. 6 shows oscillator signals relevant to the preferred embodiment of the invention shown in fig. 5 .
  • Fig. 7 shows control signals for the switching transistors Q1, Q2 and output signals for a distribution circuit 116, also relevant to fig. 5 .
  • an oscillator comparator A 2 functions as a monitor for the voltage between a capacitor C f and a resistor R f .
  • the comparator A 2 triggers an RS flip-flop 121.
  • the output of the flip-flop 121 rises up and the capacitor C f is charged by a transistor Q 4 back to a circuit operating voltage V cc .
  • the flip-flop output also controls the divider circuit 116, whose complemented outputs operate at a frequency which is half of that of an oscillator circuit 114.
  • the lamp ballast 102 has its circuitry maintained at a frequency level which is higher than it would be if defined solely by the resistor R f and the capacitor C f . This enables reaching a status in which the lamp ignition voltage maintains a constant level, even in the event that the coil L1 (L1A, L1B, L1C) of the lamp circuit becomes saturated.
  • fig. 6 illustrates the signals of the oscillator circuit 114 when operating within a current restriction range of the switching transistors Q1, Q2, preferably set for the control circuit 104. Relating also to fig. 5 , there is shown in fig.
  • the lamp comprises some of its circuit implementations in the form of an IC circuit (Integrated Circuits) and, in combination therewith, the rest of its circuit implementation in the form of at least one different circuit topology.
  • the IC circuit Integrated circuits
  • RC oscillator resistor-capacitor oscillator
  • IC circuits are generally prefabricated entities with other circuitry connected to the inputs and/or outputs thereof. Aspects of the invention can also be carried out with any type of circuit topology, such as for example discrete components, ASIC circuits (Application Specific Integrated Circuits) or IC circuits or various combinations thereof.
  • the lamp can be for example a fluorescent lamp or an HID lamp, i.e. a high intensity discharge lamp.

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Claims (1)

  1. Elektronisches Vorschaltgerät (102) zum Aufbauen einer Zündspannung für eine Lampe, um die Erzeugung von beleuchtender Strahlung zu initiieren, wobei das elektronische Vorschaltgerät (102) Folgendes umfasst:
    - mindestens zwei Schalttransistoren (Q1, Q2) zum Liefern von Strom an mindestens eine Spule (L1), die ausgelegt ist zum Entwickeln der Zündspannung, und
    - eine damit integrierte Steuerschaltung (104),
    dadurch gekennzeichnet, dass:
    - das elektronische Vorschaltgerät (102) mindestens zwei Widerstände (R8, R10) umfasst, die relativ zueinander in einer Reihenschaltung angeordnet sind, zum Messen und/oder Regeln der Ströme der mindestens zwei Schalttransistoren (Q1, Q2),
    - ein erster der Widerstände (R8) zwischen dem unteren Schalttransistor (Q2) und dem zweiten der Widerstände (R10) liegt, der wiederum zwischen dem ersten Widerstand (R8) und einem Pol einer Spannungsquelle liegt, wobei deren anderer Pol in Verbindung mit dem oberen Schalttransistor ist,
    - die Steuerschaltung (104) ausgelegt ist zum Vergleichen des elektrischen Potentials zwischen dem unteren Schalttransistor (Q2) und dem ersten Widerstand (R8) mit einer Referenz, um zu detektieren, ob ein Strom, der durch einen der Schalttransistoren (Q1, Q2) hindurchgeht, einen Grenzstromwert übersteigt, der für die Steuerschaltung eingestellt ist, und
    - die Steuerschaltung (104) ausgelegt ist zum sofortigen Ausschalten der Steuerung des Schalttransistors (Q1, Q2), der mit einem übermäßigen durchgehenden Strom gefunden wurde, und zum Einschalten des Stroms des anderen Schalttransistors (Q1, Q2).
EP10163702.3A 2009-06-30 2010-05-24 Steuerung und Messung der Funktionen eines elektronischen Vorschaltgerät Active EP2271187B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20095737A FI121561B (fi) 2009-06-30 2009-06-30 Elektronisen liitäntälaitteen toimintojen säätäminen ja mittaaminen

Publications (3)

Publication Number Publication Date
EP2271187A2 EP2271187A2 (de) 2011-01-05
EP2271187A3 EP2271187A3 (de) 2013-03-20
EP2271187B1 true EP2271187B1 (de) 2017-04-19

Family

ID=40825442

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10163702.3A Active EP2271187B1 (de) 2009-06-30 2010-05-24 Steuerung und Messung der Funktionen eines elektronischen Vorschaltgerät

Country Status (2)

Country Link
EP (1) EP2271187B1 (de)
FI (1) FI121561B (de)

Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61179096A (ja) 1985-01-24 1986-08-11 松下電工株式会社 放電灯点灯装置
US4873471A (en) 1986-03-28 1989-10-10 Thomas Industries Inc. High frequency ballast for gaseous discharge lamps
EP0461441B1 (de) 1990-06-06 1994-11-30 Zumtobel Aktiengesellschaft Verfahren und Schaltungsanordnung zur Regelung der Helligkeit (Dimmen) von Gasentladungslampen
EP1066739A1 (de) 1997-12-23 2001-01-10 Tridonic Bauelemente GmbH Verfahren und vorrichtung zum erfassen des in einer gasentladungslampe auftretenden gleichrichteffekts
WO2003098790A1 (en) 2002-05-15 2003-11-27 Philips Intellectual Property & Standards Gmbh Circuit arrangement for a resonant converter and method of operating said converter
WO2003103127A1 (de) 2002-05-29 2003-12-11 Siemens Aktiengesellschaft Messschaltung
US6759813B2 (en) 2002-02-13 2004-07-06 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Operating circuit for a discharge lamp with frequency-variable ignition
WO2004071136A1 (en) 2003-02-04 2004-08-19 Koninklijke Philips Electronics N.V. Circuit arrangement
US6891339B2 (en) 2002-09-19 2005-05-10 International Rectifier Corporation Adaptive CFL control circuit
WO2005083872A1 (de) 2004-03-01 2005-09-09 Tridonicatco Gmbh & Co. Kg Überstrom und mittenpunktspannungserfassung
WO2006003560A1 (en) 2004-06-28 2006-01-12 Koninklijke Philips Electronics N.V. Fluorescent tube lamp drive circuit
DE102004037389A1 (de) 2004-08-02 2006-03-16 Infineon Technologies Ag Verfahren zur Ansteuerung einer eine Leuchtstofflampe aufweisenden Last zur Optimierung des Zündvorganges
EP1333707B1 (de) 2002-02-01 2006-08-02 TridonicAtco GmbH & Co. KG Elektronisches Vorschaltgerät für Gasentladungslampe
US20060197470A1 (en) 2005-03-04 2006-09-07 Ribarich Thomas J Automotive high intensity discharge lamp ballast circuit
DE102005020178A1 (de) 2005-04-28 2006-11-09 HÜCO electronic GmbH Schaltungsvorrichtung und Verfahren zum Betreiben einer Lampe
EP1776000A2 (de) 2005-10-12 2007-04-18 International Rectifier Corporation 8-beinige integrierte Schaltung für ein Vorschaltgerät mit Leistungsfaktorkorrektur
WO2008119613A1 (en) 2007-03-30 2008-10-09 Osram Gesellschaft mit beschränkter Haftung Method of ignition regulation of discharge lamp and the corresponding electronic ballast circuit
FI20075702A (fi) 2007-10-04 2009-04-05 Helvar Oy Ab Elektroninen liitäntälaite

Patent Citations (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61179096A (ja) 1985-01-24 1986-08-11 松下電工株式会社 放電灯点灯装置
US4873471A (en) 1986-03-28 1989-10-10 Thomas Industries Inc. High frequency ballast for gaseous discharge lamps
EP0461441B1 (de) 1990-06-06 1994-11-30 Zumtobel Aktiengesellschaft Verfahren und Schaltungsanordnung zur Regelung der Helligkeit (Dimmen) von Gasentladungslampen
EP1066739A1 (de) 1997-12-23 2001-01-10 Tridonic Bauelemente GmbH Verfahren und vorrichtung zum erfassen des in einer gasentladungslampe auftretenden gleichrichteffekts
EP1333707B1 (de) 2002-02-01 2006-08-02 TridonicAtco GmbH & Co. KG Elektronisches Vorschaltgerät für Gasentladungslampe
US6759813B2 (en) 2002-02-13 2004-07-06 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Operating circuit for a discharge lamp with frequency-variable ignition
WO2003098790A1 (en) 2002-05-15 2003-11-27 Philips Intellectual Property & Standards Gmbh Circuit arrangement for a resonant converter and method of operating said converter
WO2003103127A1 (de) 2002-05-29 2003-12-11 Siemens Aktiengesellschaft Messschaltung
US6891339B2 (en) 2002-09-19 2005-05-10 International Rectifier Corporation Adaptive CFL control circuit
WO2004071136A1 (en) 2003-02-04 2004-08-19 Koninklijke Philips Electronics N.V. Circuit arrangement
EP1593290B1 (de) 2003-02-04 2007-07-04 Koninklijke Philips Electronics N.V. Schaltungsanordnung
WO2005083872A1 (de) 2004-03-01 2005-09-09 Tridonicatco Gmbh & Co. Kg Überstrom und mittenpunktspannungserfassung
WO2006003560A1 (en) 2004-06-28 2006-01-12 Koninklijke Philips Electronics N.V. Fluorescent tube lamp drive circuit
DE102004037389A1 (de) 2004-08-02 2006-03-16 Infineon Technologies Ag Verfahren zur Ansteuerung einer eine Leuchtstofflampe aufweisenden Last zur Optimierung des Zündvorganges
US20060197470A1 (en) 2005-03-04 2006-09-07 Ribarich Thomas J Automotive high intensity discharge lamp ballast circuit
DE102005020178A1 (de) 2005-04-28 2006-11-09 HÜCO electronic GmbH Schaltungsvorrichtung und Verfahren zum Betreiben einer Lampe
EP1776000A2 (de) 2005-10-12 2007-04-18 International Rectifier Corporation 8-beinige integrierte Schaltung für ein Vorschaltgerät mit Leistungsfaktorkorrektur
WO2008119613A1 (en) 2007-03-30 2008-10-09 Osram Gesellschaft mit beschränkter Haftung Method of ignition regulation of discharge lamp and the corresponding electronic ballast circuit
FI20075702A (fi) 2007-10-04 2009-04-05 Helvar Oy Ab Elektroninen liitäntälaite
EP2046099A1 (de) 2007-10-04 2009-04-08 Helvar Oy Ab Vorrichtung für eine elektronische Verbindung für eine Lampe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DOSH M ET AL.: "Low Frequency Architecture for Multi-Lamp CCFL Systems with Capactive Ignition", JOURNAL OF DISPLAY TECHNOLOGY, vol. 5, no. 5, May 2009 (2009-05-01)

Also Published As

Publication number Publication date
EP2271187A2 (de) 2011-01-05
FI121561B (fi) 2010-12-31
FI20095737A0 (fi) 2009-06-30
EP2271187A3 (de) 2013-03-20

Similar Documents

Publication Publication Date Title
KR100899490B1 (ko) 직류-교류 변환 장치, 그 컨트롤러 ic 및 제어 장치
EP1729549B1 (de) Hochspannungs-entladungslampen-beleuchtungsvorrichtung und beleuchtungseinrichtung
JP5051862B1 (ja) 直管型発光ダイオード式照明灯
KR100983703B1 (ko) 직류-교류 변환 장치 및 교류 전력 공급 방법
US5396155A (en) Self-dimming electronic ballast
JP2010283998A (ja) ゼロ電流スイッチングおよび任意周波数のパルス幅変調を利用した共振インバータの駆動方法
JP2004134360A (ja) スリーウェイ調光コンパクト蛍光灯の安定器
JP4116092B2 (ja) 蛍光ランプの調光可能な動作のための回路装置
CN103260316A (zh) 一种双回路限流驱动电路和双回路限流驱动方法
JP4797511B2 (ja) 冷陰極管点灯装置、管電流制御方法、及び集積回路
JP4186801B2 (ja) 無電極放電灯点灯装置並びに無電極放電灯装置
WO2009107057A1 (en) Dimming circuit and electronic ballast for a lamp
CN101146393B (zh) 气体放电灯在可变环境状况下的点火
JP2006294328A (ja) 放電灯駆動装置
US20130181608A1 (en) Electronic ballast
EP2271187B1 (de) Steuerung und Messung der Funktionen eines elektronischen Vorschaltgerät
RU77126U1 (ru) Электронный трансформатор для газоразрядных ламп
Lin et al. Design and implementation of electronic ballast for electrodeless fluorescent lamp with primary-side control
KR200360276Y1 (ko) 전자식 안정기
EP1111765A1 (de) Spannungsumrichter mit einer selbstschwingenden Halbbrücke nstruktur
JP2013239389A (ja) 放電灯点灯装置及び照明装置
Lin et al. Design of a burst dimming controller with primary-side control for EFL electronic ballast
KR100860851B1 (ko) 고압방전등 램프 구동회로
KR200407446Y1 (ko) 초기점등 보조회로를 갖는 전자식 안정기
JP4966122B2 (ja) 放電灯点灯装置及び照明器具

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): AL 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: BA ME RS

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AL 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: BA ME RS

RIC1 Information provided on ipc code assigned before grant

Ipc: H05B 41/292 20060101ALI20130208BHEP

Ipc: H05B 41/285 20060101ALI20130208BHEP

Ipc: H05B 41/298 20060101ALI20130208BHEP

Ipc: H05B 41/282 20060101AFI20130208BHEP

17P Request for examination filed

Effective date: 20130912

RBV Designated contracting states (corrected)

Designated state(s): AL 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

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20161026

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

GRAR Information related to intention to grant a patent recorded

Free format text: ORIGINAL CODE: EPIDOSNIGR71

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

INTC Intention to grant announced (deleted)
RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: HELVAR OY AB

RIN1 Information on inventor provided before grant (corrected)

Inventor name: VIHINEN, HANNU

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL 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

INTG Intention to grant announced

Effective date: 20170313

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

RIN1 Information on inventor provided before grant (corrected)

Inventor name: VIHINEN, HANNU

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 887052

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170515

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602010041604

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20170419

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 887052

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170419

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170720

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170719

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170819

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170719

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DE

Ref legal event code: R026

Ref document number: 602010041604

Country of ref document: DE

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

26 Opposition filed

Opponent name: TRIDONIC GMBH & CO KG

Effective date: 20180118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170531

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170531

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20180131

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20170719

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170524

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20170531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170719

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170524

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170619

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170524

RDAF Communication despatched that patent is revoked

Free format text: ORIGINAL CODE: EPIDOSNREV1

PLCK Communication despatched that opposition was rejected

Free format text: ORIGINAL CODE: EPIDOSNREJ1

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20100524

REG Reference to a national code

Ref country code: DE

Ref legal event code: R100

Ref document number: 602010041604

Country of ref document: DE

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

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

Free format text: STATUS: OPPOSITION REJECTED

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170419

27O Opposition rejected

Effective date: 20190701

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170419

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20230530

Year of fee payment: 14