EP1443808A2 - Circuit et méthode d'allumage et de commande du fonctionnement des lampes à décharge de gaz avec filaments de préchauffage - Google Patents

Circuit et méthode d'allumage et de commande du fonctionnement des lampes à décharge de gaz avec filaments de préchauffage Download PDF

Info

Publication number
EP1443808A2
EP1443808A2 EP03029437A EP03029437A EP1443808A2 EP 1443808 A2 EP1443808 A2 EP 1443808A2 EP 03029437 A EP03029437 A EP 03029437A EP 03029437 A EP03029437 A EP 03029437A EP 1443808 A2 EP1443808 A2 EP 1443808A2
Authority
EP
European Patent Office
Prior art keywords
inverter
frequency
preheating
circuit
discharge lamps
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.)
Granted
Application number
EP03029437A
Other languages
German (de)
English (en)
Other versions
EP1443808A3 (fr
EP1443808B1 (fr
Inventor
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
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP1443808A2 publication Critical patent/EP1443808A2/fr
Publication of EP1443808A3 publication Critical patent/EP1443808A3/fr
Application granted granted Critical
Publication of EP1443808B1 publication Critical patent/EP1443808B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H05B41/295—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 and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S315/00—Electric lamp and discharge devices: systems
    • Y10S315/05—Starting and operating circuit for fluorescent lamp
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S315/00—Electric lamp and discharge devices: systems
    • Y10S315/07—Starting and control circuits for gas discharge lamp using transistors

Definitions

  • the invention relates to a circuit arrangement according to the preamble of Claim 1. It is in particular a circuit arrangement that preheating electrode coils before igniting discharge lamps of discharge lamps.
  • Circuit arrangements for starting and operating discharge lamps come in electronic control gear for discharge lamps. Under the start The discharge lamps are subsequently preheated by electrode filaments of the discharge lamps during a preheating phase and the ignition of the discharge lamps understood during an ignition phase.
  • the start of discharge lamps with a preheating and an ignition phase is also used in English Program called start.
  • the ignition phase is followed by an operating phase in which the discharge lamp has an arc discharge.
  • An electronic control gear for discharge lamps with the Start program is required according to the prior art, a circuit arrangement which comprises a control unit, which controls the sequence and sequence of preheating, ignition and operating phases.
  • Circuit arrangements with an inverter which have a matching network Feeds energy into one end of the electrode filaments.
  • the each other ends are connected via a resonance capacitor.
  • the resonance capacitor and a lamp choke are part of a resonant circuit, the one Has resonance frequency, which is in the undamped case at a natural frequency.
  • the matching network is required to match the source resistance of the inverter to transform a source resistance of the operating device that is used to operate Discharge lamps is suitable.
  • the resonant circuit is generally a component of the matching network.
  • the inverter generates an inverter voltage at an inverter output with an inverter frequency that is in a preheating phase at a high Preheating frequency is greater than the natural frequency.
  • the value of the resonance capacitor and the preheating frequency are selected so that there is a heating current through the electrode filaments, which is sufficient for the respective lamp type Preheating causes.
  • the inverter frequency is reduced in an ignition phase, until it is so close to the natural frequency that it is connected to a Discharge lamp sets an ignition voltage that ignites the discharge lamp causes.
  • An operating phase follows the ignition of the discharge lamp.
  • controlled variables such as B. lamp power or lamp current supplied to a controller.
  • the controller acts on the inverter frequency via a manipulated variable in such a way that sets a desired lamp power or lamp current.
  • a control unit is required which is in the correct chronological order sets the required inverter frequency in the respective phases.
  • To the control unit must regulate lamp power or lamp current Deactivate during the preheating and ignition phase as there is an inverter frequency in these phases is required that is not of lamp power or lamp current depends.
  • the present invention enables the above. Saving control unit.
  • the task is essentially solved in that a circuit arrangement was found, which accomplishes a preheating, ignition and operating phase without need a control unit.
  • a circuit arrangement according to the invention has a preheating resistor damping of the resonant circuit during a preheating phase via the electrode coils causes the resonant frequency of the resonant circuit from the Natural frequency is reduced to a damping resonance frequency.
  • the preheating resistor assumes a value that is designed so that the Resonance frequency of the resonance circuit is close to the natural frequency.
  • a controller regulates via a control signal that influences the inverter frequency the lamp current or the lamp power.
  • lamp current denotes the current caused by the gas discharge from connected to lamp terminals Discharge lamps flow.
  • a first controller input (B 1) is fed a first electrical quantity, the corresponds to the lamp current, whereby in the event that there is no gas discharge, the first electrical quantity assumes a starting value and in the event that a gas discharge is present, the first electrical quantity is above a minimum value.
  • the circuit arrangement is designed such that in the event that the first electrical variable takes on the starting value, the controller the inverter to a start frequency that is between the damping resonance frequency and the natural frequency.
  • the start frequency is output as long as the first electrical size is below the minimum value.
  • the circuit arrangement either in the preheating or Starting phase.
  • the type of phase is determined by the value of the preheating resistor.
  • the circuit arrangement is in the preheating phase.
  • the resonance frequency of the resonance circuit is due to the real part of the resistance the electrode coils and the preheating resistor to the damping resonance frequency pressed.
  • the start frequency is above the damping resonance frequency.
  • the offset between the start frequency and the damping resonance frequency, as well as the damping of the resonance circuit cause that to connected Discharge lamps have a voltage that is not necessary for ignition sufficient.
  • the resonance frequency increases of the resonant circuit and approaches the start frequency which the Inverter still outputs.
  • the damping of the Resonant circuit Both effects lead to a change in the circuit arrangement in the ignition phase.
  • Discharge lamps are connected during the ignition phase a voltage whose value is so high that the discharge lamps ignite.
  • the figure shows an embodiment for a circuit arrangement according to the invention for starting and operating discharge lamps.
  • resistors are represented by the letter R, transistors by the Letter T, coil by letter L, amplifier by letter A, Diodes through the letter D, node potentials through the letters N and Capacitors denoted by the letter C followed by a number.
  • a mains voltage can be connected to the connections J1 and J2.
  • the circuit arrangement is operated on a mains voltage.
  • the present invention is not designed to operate on a line voltage bound.
  • a circuit arrangement according to the invention can, for example also operate on a battery voltage.
  • a filter consisting of two capacitors C1, C2 and two coils L1, L2, the mains voltage consisting of a full-bridge rectifier supplied from the diodes D1, D2, D3, D4.
  • the full bridge rectifier starts its positive output, a node N21, with respect to a reference node N0 the rectified mains voltage is ready.
  • circuitry measures for Reduction of mains harmonics necessary.
  • One such measure is the installation of so-called charge pumps.
  • the advantage of charge pumps is that they are small circuitry expenditure, which is necessary for their realization.
  • the topology of a charge pump means that the rectifier has one electronic pump switch is coupled to the main energy storage. Thereby arises between the rectifier and the electronic pump switch Pumping node.
  • the pump node is connected to the inverter output via a pump network coupled.
  • the pump network can contain components that are also the Adaptation network can be assigned.
  • the principle of the charge pump exists in that during a half period of the inverter frequency over the pump node Energy taken from the mains voltage and buffered in the pump network becomes. In the following half period of the inverter frequency is the temporarily stored energy via the electronic pump switch to the main energy storage fed.
  • the rectified mains voltage is via the diodes D5 and D6 two pump nodes N22 and N23 are supplied.
  • the embodiment in the figure therefore has two so-called pump branches. To decouple the pump branches from each other diodes D5 and D6 are necessary. If there is only one pump branch, a Pump nodes are connected directly to the rectifier output, node 21. However, it should be noted that the diodes used in the rectifier can switch fast enough to follow the inverter frequency. If so is not the case, even with only one pump branch, a fast diode must be between Rectifier output and pump node are switched. In the embodiment in Figure 2, the pump nodes are coupled to the positive output of the rectifier. Charge pump topologies are also known from the literature, in which Pump nodes are coupled to the negative output of the rectifier.
  • An electronic pump switch leads from the pump nodes N22 and N23, which are designed as diodes D7 and D8, to node N24. Between N24 and N0 the main energy store, which is designed as an electrolytic capacitor C3, is connected.
  • node N21 is connected to node N24.
  • the components D5, D6, D7, D8, C8, C9, and L4 are then omitted.
  • C3 feeds the inverter, which is designed as a half-bridge.
  • B. flyback converter or full bridge can be used.
  • Advantageous a half bridge is used for lamp powers between 5W and 300W, because it represents the least expensive topology.
  • there is Half bridge from a series connection of two half bridge transistors T1 and T2 and a series connection of two coupling capacitors C4 and C5. Both series connections are connected in parallel to C3.
  • a lamp choke L3 is located between N25 and a lamp voltage node N27 connected.
  • the connection J3 is connected to N27, to that in the exemplary embodiment the series connection of two discharge lamps Lp1 and Lp2 is connected.
  • the present However, the invention can also be carried out with one or more lamps.
  • the Current through the discharge lamps Lp1 and Lp2 flows through a connection J8, through a winding W1 of a measuring transformer to node N26.
  • the inverter voltage is connected to a series connection of two discharge lamps Lp1, Lp2 and the lamp choke L3.
  • the current fed into J3 does not only flow through the gas discharge of the discharge lamps Lp1, Lp2 but also by an outer filament of the first discharge lamp Lp1 to a connection J4. From there through a winding W4 of a heating transformer, further by a variable resistor R1, further by a winding W3 of the measuring transformer for connection J7. There is an external one at connection J7 Filament of the second discharge lamp Lp2 connected, the other end of the Connection J8 leads. There are two inner filaments of the discharge lamps Lp1 and Lp2 each via the connections J5 and J6 with the winding W5 of the heating transformer connected.
  • the arrangement described in this paragraph causes the inverter voltage not just a current through the gas discharge of the discharge lamps Lp1, Lp2 but also a heating current through the outer coils and a heating current through the inner coils of the Discharge lamps Lp1, Lp2. If only one discharge lamp is to be operated, so the heating transformer can be omitted.
  • the heating current is essentially before the ignition of the discharge lamps Lp1, Lp2 during a preheating phase as preheating current for preheating the filaments needed.
  • the preheating resistor R1 essentially determines the value of the heating current. During the preheating phase, the value of R 1 is so low that lamp data predetermined heating current is reached. After the preheating phase, the Value of R1 so that compared to the current through the gas discharge of the discharge lamps Lp1, Lp2 negligible heating current flows.
  • R1 is implemented by a so-called PTC or PTC thermistor. It is a Resistance that has a low resistance when cold. By the The PTC thermistor heats up the heating current, which increases its resistance.
  • R1 can also be implemented by an electronic switch that is in the preheating phase is closed and then open. In series with this switch can be a resistor be switched with constant resistance value. So that's a quick one Transition from the preheating phase to the ignition phase possible.
  • the arrangement described for preheating the coils is during the Preheat phase by damping the resonance frequency one in the next section described resonance circuit lower than its natural frequency.
  • an inverter frequency is selected during the preheating phase Natural frequency lies. This advantageously results in a high heating current and thus a short preheating phase.
  • the lamp voltage node N27 is connected via a first resonance capacitor C6 connected to the pump node N23. Between N23 and N0 is a second resonance capacitor C7 switched. C6 and C7 form a resonant circuit with the lamp choke L3. To determine the natural frequency of the resonance circuit, C6 and C7 considered in series. The effective capacity value of C6 and C7 regarding the natural frequency is thus the quotient of the product and the sum of the Capacitance values of C6 and C7.
  • the resonant circuit becomes after the preheating phase excited near its natural frequency, an ignition voltage develops across the lamps, which leads to the ignition of the discharge lamps.
  • L3 works after ignition together with C6 and C7 as a matching network that has an output impedance of Inverter is transformed into an impedance necessary for the operation of the discharge lamps.
  • the combination works by connecting C6 and C7 to the pump node N23 of L3, C6 and C7 not only as a resonance circuit and matching network, but at the same time as a pump network.
  • the potential at N23 is lower than that current mains voltage, the pump network L3, C6, C7 draws energy from the Mains voltage. If the potential at N23 exceeds the voltage at the main energy storage C3, the energy absorbed by the mains voltage is given to C3.
  • the ratio of the capacitance values of C6 and C7 the Effect of the network L3, C6, C7 can be compared as a pump network.
  • the bigger the capacity value of C7 is chosen, the less the effect of Network L3, C6, C7 as a pump network.
  • the present invention will use no charge pump C7 can be omitted.
  • a further pumping effect is based on a capacitor C8, which is between N23 and the connection node N25 of the half-bridge transistors T1, T2 is connected.
  • C8 also not only acts as a pump network, but also fulfills the task a snubber capacitor. Snubber capacitors are common as a measure for switch relief in inverters.
  • the pump network for the second pump branch consists of a series connection of one Pump choke L4 and a pump capacitor C9. This pump network is between the connection node N25 of the half-bridge transistors T1, T2 and Pump node N22 switched.
  • two Pump branches are used so that the pumped energy is divided into several components becomes. This makes it possible to dimension the components more cost-effectively. Also this gives a degree of freedom in the design of the dependency of the pumped Energy from operating parameters of the discharge lamps.
  • the invention is but can also be implemented with just one pump branch.
  • the half-bridge transistors T1, T2 are designed as MOSFETs. Other electronic too Switches can be used for this.
  • T1 and T2 are provided with an integrated circuit IC1.
  • IC1 is a circuit from International Rectifier IR2153. There are also alternative circuits to this type on the Market available; z. B. L6571 from STM.
  • the circuit IR2153 contains one So-called high-sidc driver, which is also used to control the half-bridge trunsistor T1 can, although it has no connection to the reference potential N0. These are one Diode D10 and a capacitor C10 necessary.
  • the IC1 is supplied with operating voltage via connection 1 of the IC1.
  • a voltage source VCC between terminal 1 of IC1 and N0 intended.
  • this voltage source VCC can be realized.
  • the IC can be operated via a Resistor are supplied by the rectified mains voltage.
  • the IC1 Apart from the driver circuits for the half-bridge transistors, the IC1 only contains an oscillator whose oscillation frequency is set via connections 2 and 3 can be. Because of the present invention, there is no effort in IC1 necessary for a control device. It can therefore be an inexpensive type for IC1 be used.
  • the oscillation frequency of said oscillator corresponds to that Inverter frequency.
  • Between the connections 2 and 3 is a frequency determining Resistor R3 switched.
  • the series connection is between connection 3 and N0 a frequency-determining capacitor C11 and the emitter-collector path of a bipolar transistor T3. Parallel to the emitter-collector path A diode D9 is connected from T3 so that C11 can be charged and discharged.
  • the inverter frequency can be adjusted by a voltage between the basic connection of T3 and N0 can be set and thus forms a manipulated variable for a control loop.
  • the base connection of T3 is connected to a manipulated variable node N28.
  • T3, IC1 and their wiring can thus be regarded as controllers.
  • the functions of the IC1 and its wiring can also be implemented by any voltage or current controlled oscillator, which has driver circuits controls the half-bridge transistors.
  • the control loop in the exemplary embodiment records the current through the Gas discharge of the discharge lamps Lp1, Lp2.
  • the measuring transformer has a winding W2.
  • the winding direction in the measuring transformer is designed so that from the heating current in winding W3 is subtracted from a total current in winding W1 is so that a current flows in winding W2, which corresponds to the current through the gas discharge of the discharge lamps Lp1, Lp2 is proportional.
  • a full bridge rectifier formed by diodes D11, D12, D13 and D14 directs the current through winding W2 is the same and leads it via a low-resistance measuring resistor R4 to N0.
  • the Voltage drop across R4 is thus a measure of the current through the gas discharge of the Discharge lamps Lp1, Lp2. Via a low pass for averaging, which by a resistor R5 and a capacitor C13 is formed, the voltage drop occurs at R4 to the input of a non-inverting measuring amplifier.
  • the measuring amplifier is made in a known manner by an operational amplifier AMP and the resistors R6, R7 and R8 realized.
  • the exemplary embodiment is a Gain of the measuring amplifier set at approx. 10.
  • the measuring amplifier can be omitted or by an impedance converter, such as. B. an emitter follower.
  • the output of the measuring amplifier is via a diode D15 with the manipulated variable node N28 connected. This is the control loop for regulating the current through the Gas discharge of the discharge lamps Lp1, Lp2 closed.
  • the diode D15 is necessary so that the potential of N28 can be raised to a value above that value specified by the measuring amplifier.
  • the anode of D15 is a first Controller input.
  • the circuit arrangement is designed such that without lamp current the potential of N28 takes on the starting value.
  • the starting value is chosen so that it is below a minimum value, which is the operating range of the transistor T3 and thus limiting the controller. So there are fluctuations in the potential of N28 no influence on the inverter frequency as long as the potential of N28 is below the minimum value. There is no regulation; the control loop is not closed.
  • the starting value at the potential of node N28 causes an inverter frequency via T3 and IC 1, which corresponds to the start frequency.
  • the start frequency it is advantageous using C11 and R3 selected a frequency as low as possible because it is high Heating currents in the electrode coils and thus short preheating phases can be realized.
  • the ignition phase provides for the half-bridge switches and for the components of the resonance circuit represents a high load.
  • To the circuit arrangement before an overload To protect, is a protective circuit in the embodiment of the figure intended. If the ignition voltage is too high, this will change the inverter frequency raised and thus a greater difference to the natural frequency of the resonant circuit set.
  • the protective circuit only works when the ignition voltage is switched on by means of a threshold switch is set.
  • the threshold switch is in the figure by a Varistor MOV implemented. It is connected in series with a capacitor C12, a resistor R2 and a diode D17 that make up the lamp voltage node N27 connects to the manipulated variable node N28.
  • the anode of D 17 represents one second controller input.
  • N28 is via the parallel connection of a resistor R9 and a capacitor C 14 connected to N0.
  • N27 there is a voltage compared to N0, which is a measure of that in the resonant circuit formed from L3, C6 and C7 vibrating reactive energy and thus for the ignition voltage is. If this voltage exceeds the threshold voltage of the varistor MOV, see above a current flows through R9 and C14 is charged. So that the tension on Control variable node N28 raised. This causes an increase in the inverter frequency and the reactive energy vibrating in the resonance circuit is reduced because the Inverter frequency further moves away from the natural frequency of the resonance circuit.
  • the diode D16 is connected between N0 and the connection point of R2 and D17. In combination with C12 at N28, the sum of positive and negative amplitude of the voltage applied through the varistor MOV leaves.
  • Any other threshold switch can be used instead of the MOV find how he z. B. built up by Zener diodes or suppressor diodes can be.
  • the threshold value of the MOV varistor is in the application example 250Veff selected. A higher value means more reactive energy in the resonance circuit approved, resulting in a higher ignition voltage on the discharge lamps Lp1, Lp2, but also leads to a higher load on components. On the The threshold value of the varistor MOV can thus set a desired optimum become.
  • the value of the resistance R2 influences the strength of the effect of the invention Intervention on the control loop at the manipulated variable node N28. It is also advantageous a non-linear relationship between the voltage at the manipulated variable node N28 and the inverter frequency. This nonlinear relationship is shown in the application example realized by the nonlinear characteristic of T3. He will also on the dependence of the frequency of the oscillator in the IC1 on the voltage at Connection 3 of the IC1 influenced. A sharp rise in the voltage at N27 leads due to the non-linearity to a disproportionate increase in the inverter frequency, whereby an overload of components such. B. the voltage load of C3 or the current load of T 1 and T2 is prevented.
  • a lamp current flows that converts the potential at node 28 to one Value that lies in the working range of T3. This is the control loop for the Lamp current closed.
  • T3 sets an inverter frequency via IC1, which causes a desired lamp current.

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
EP03029437A 2003-01-28 2003-12-19 Circuit et méthode d'allumage et de commande du fonctionnement des lampes à décharge de gaz avec filaments de préchauffage Expired - Lifetime EP1443808B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10303277 2003-01-28
DE10303277A DE10303277A1 (de) 2003-01-28 2003-01-28 Schaltungsanordnung und Verfahren zum Start und Betrieb von Gasentladungslampen mit heizbaren Elektrodenwendeln

Publications (3)

Publication Number Publication Date
EP1443808A2 true EP1443808A2 (fr) 2004-08-04
EP1443808A3 EP1443808A3 (fr) 2006-03-22
EP1443808B1 EP1443808B1 (fr) 2008-10-08

Family

ID=32602995

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03029437A Expired - Lifetime EP1443808B1 (fr) 2003-01-28 2003-12-19 Circuit et méthode d'allumage et de commande du fonctionnement des lampes à décharge de gaz avec filaments de préchauffage

Country Status (8)

Country Link
US (1) US6936976B2 (fr)
EP (1) EP1443808B1 (fr)
KR (1) KR101009518B1 (fr)
CN (1) CN100551197C (fr)
AT (1) ATE410911T1 (fr)
CA (1) CA2456367A1 (fr)
DE (2) DE10303277A1 (fr)
TW (1) TWI333804B (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004044180A1 (de) 2004-09-13 2006-03-16 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Elektronisches Vorschaltgerät mit Pumpschaltung für Entladungslampe mit vorheizbaren Elektroden
DE102007016322A1 (de) * 2007-04-04 2008-10-09 Tridonicatco Gmbh & Co. Kg Schaltung zur Wendelheizung
US7982406B2 (en) * 2007-05-07 2011-07-19 Simon Richard Greenwood Active lamp current crest factor control
WO2009008421A1 (fr) * 2007-07-10 2009-01-15 Toyo Seikan Kaisha, Ltd. Électrode de chauffage et procédé pour chauffer un matériau devant être chauffé en utilisant l'électrode de chauffage
DE102008004399A1 (de) * 2008-01-14 2009-07-16 HÜCO electronic GmbH Elektronisches Vorschaltgerät mit Strommesseinrichtung, Verfahren zu seiner Steuerung und Beleuchtungsgerät
DE202008008165U1 (de) * 2008-06-18 2009-11-05 Tridonicatco Gmbh & Co. Kg Betriebsgerät für Gasentladungslampen oder andere Leuchtmittel mit Lampenstrommessung
US10675699B2 (en) 2015-12-10 2020-06-09 Illinois Tool Works Inc. Systems, methods, and apparatus to preheat welding wire
US11524354B2 (en) 2017-06-09 2022-12-13 Illinois Tool Works Inc. Systems, methods, and apparatus to control weld current in a preheating system
WO2019067346A1 (fr) * 2017-09-29 2019-04-04 Illinois Tool Works Inc. Systèmes, procédés et appareil pour préchauffer un fil de soudage
US12583048B2 (en) 2019-03-29 2026-03-24 Illinois Tool Works Inc. Methods and apparatus to convert welding-type power to welding-type power and resistive preheating power

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2122144T3 (es) * 1993-04-23 1998-12-16 Koninkl Philips Electronics Nv Circuito corrector del factor de potencia.
JP3858317B2 (ja) 1996-11-29 2006-12-13 東芝ライテック株式会社 放電灯点灯装置及び照明装置
JP2982804B2 (ja) 1998-01-16 1999-11-29 サンケン電気株式会社 放電灯点灯装置
US6144169A (en) * 1998-12-29 2000-11-07 Philips Electronics North America Corporation Triac dimmable electronic ballast with single stage feedback power factor inverter
JP2001015289A (ja) * 1999-04-28 2001-01-19 Mitsubishi Electric Corp 放電灯点灯装置
US6020691A (en) * 1999-04-30 2000-02-01 Matsushita Electric Works R & D Laboratory, Inc. Driving circuit for high intensity discharge lamp electronic ballast
US6593703B2 (en) * 2001-06-15 2003-07-15 Matsushita Electric Works, Ltd. Apparatus and method for driving a high intensity discharge lamp

Also Published As

Publication number Publication date
CN1558706A (zh) 2004-12-29
US20040150356A1 (en) 2004-08-05
TWI333804B (en) 2010-11-21
DE50310605D1 (de) 2008-11-20
US6936976B2 (en) 2005-08-30
EP1443808A3 (fr) 2006-03-22
DE10303277A1 (de) 2004-07-29
CA2456367A1 (fr) 2004-07-28
KR101009518B1 (ko) 2011-01-18
EP1443808B1 (fr) 2008-10-08
KR20040069291A (ko) 2004-08-05
TW200414827A (en) 2004-08-01
CN100551197C (zh) 2009-10-14
ATE410911T1 (de) 2008-10-15

Similar Documents

Publication Publication Date Title
DE69307427T2 (de) Verschaltgerät für eine Lampe
DE69828862T2 (de) Mittels eines triacs dimmbare kompakte leuchtstofflampe mit niedrigem leistungsfaktor
DE69616479T2 (de) Schaltungsanordnung
DE3335153C2 (fr)
DE69315761T2 (de) Geschützter Umrichter zur Steuerung einer Entladungslampe
DE19843643B4 (de) Schaltungsanordnung zum Starten und Betreiben einer Hochdruck-Entladungslampe
DE102005007346A1 (de) Schaltungsanordnung und Verfahren zum Betreiben von Gasentladungslampen
EP1443808B1 (fr) Circuit et méthode d'allumage et de commande du fonctionnement des lampes à décharge de gaz avec filaments de préchauffage
DE102005058484A1 (de) Schaltungsanordnung und Verfahren zum Betreiben mindestens einer LED
EP1443807B1 (fr) Circuit et méthode d'allumage et de commande du fonctionnement des lampes à décharges
EP1397029B1 (fr) Circuit pour opérer une lampe de décharge
EP1033907A2 (fr) Circuit et méthode pour alimenter au moins une lampe à décharge à haute pression
DE69709604T2 (de) Schaltungsanordnung
DE4122544C1 (fr)
DE69105227T2 (de) Schaltung zur Steuerung einer Gasentladungslampe.
EP0389847B1 (fr) Circuit
DE102004050060B4 (de) Tiefsetzerschaltung
EP1326484B1 (fr) Appareil pour alimenter des lampes à décharge
EP1396937A2 (fr) Circuit pour alimenter un circuit de commande avec approvisionnement de puissance amélioré
EP0642295B1 (fr) Ballast électronique pour alimenter une charge, par exemple une lampe à décharge
EP1635620B1 (fr) Ballast électronique de pompe a charge pour lampes a décharge avec électrodes de préchauffage
EP1732364B1 (fr) Circuit et procédé de commande de puissance d'un ballast électronique en fonction de la tension de réseau
DE10220471A1 (de) Schaltungsanordnung zum Betrieb von Entladungslampen
DE4036604A1 (de) Schaltungsanordnung zum betrieb einer entladungslampe
DE69508740T2 (de) Schaltungsanordnung

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 HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

17P Request for examination filed

Effective date: 20060421

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20070209

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 50310605

Country of ref document: DE

Date of ref document: 20081120

Kind code of ref document: P

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

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

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: 20081008

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

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: 20090108

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: 20090119

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: 20090218

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: 20081008

BERE Be: lapsed

Owner name: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUH

Effective date: 20081231

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

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 NON-PAYMENT OF DUE FEES

Effective date: 20081231

Ref country code: IE

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: 20081008

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: 20081008

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: 20081008

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: 20081008

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

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

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: 20081008

26N No opposition filed

Effective date: 20090709

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

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: 20081008

Ref country code: BE

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

Effective date: 20081231

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: 20081231

Ref country code: LI

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

Effective date: 20081231

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081008

Ref country code: LU

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

Effective date: 20081219

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

Effective date: 20090409

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: 20081008

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

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: 20090109

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

Ref country code: AT

Payment date: 20101110

Year of fee payment: 8

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

Ref country code: SE

Payment date: 20101207

Year of fee payment: 8

Ref country code: NL

Payment date: 20101203

Year of fee payment: 8

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

Ref country code: IT

Payment date: 20101229

Year of fee payment: 8

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 50310605

Country of ref document: DE

Owner name: OSRAM GMBH, DE

Free format text: FORMER OWNER: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG, 81543 MUENCHEN, DE

Effective date: 20111130

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20120701

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

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

Ref country code: SE

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

Effective date: 20111220

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

Ref country code: IT

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

Effective date: 20111219

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 410911

Country of ref document: AT

Kind code of ref document: T

Effective date: 20111219

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 NON-PAYMENT OF DUE FEES

Effective date: 20120701

Ref country code: AT

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

Effective date: 20111219

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 50310605

Country of ref document: DE

Owner name: OSRAM GMBH, DE

Free format text: FORMER OWNER: OSRAM AG, 81543 MUENCHEN, DE

Effective date: 20130205

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 50310605

Country of ref document: DE

Owner name: OSRAM GMBH, DE

Free format text: FORMER OWNER: OSRAM GMBH, 81543 MUENCHEN, DE

Effective date: 20130822

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

Ref country code: GB

Payment date: 20131219

Year of fee payment: 11

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

Ref country code: FR

Payment date: 20131220

Year of fee payment: 11

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

Ref country code: DE

Payment date: 20141211

Year of fee payment: 12

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

Effective date: 20141219

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20150831

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: 20141219

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: 20141231

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50310605

Country of ref document: DE

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

Ref country code: DE

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

Effective date: 20160701