EP1054579A2 - Circuit, système électrique associé ainsi que lampe à décharge avec un tel circuit et son procédé d'alimentation - Google Patents

Circuit, système électrique associé ainsi que lampe à décharge avec un tel circuit et son procédé d'alimentation Download PDF

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Publication number
EP1054579A2
EP1054579A2 EP00107630A EP00107630A EP1054579A2 EP 1054579 A2 EP1054579 A2 EP 1054579A2 EP 00107630 A EP00107630 A EP 00107630A EP 00107630 A EP00107630 A EP 00107630A EP 1054579 A2 EP1054579 A2 EP 1054579A2
Authority
EP
European Patent Office
Prior art keywords
circuit
voltage
lamp
ignition
circuit arrangement
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Withdrawn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
EP00107630A
Other languages
German (de)
English (en)
Other versions
EP1054579A3 (fr
Inventor
Michael Bönigk
Klaus Prof.Dr. Günther
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 EP1054579A2 publication Critical patent/EP1054579A2/fr
Publication of EP1054579A3 publication Critical patent/EP1054579A3/fr
Withdrawn legal-status Critical Current

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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
    • H05B41/02—Details
    • H05B41/04—Starting switches
    • H05B41/042—Starting switches using semiconductor devices
    • 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
    • H05B41/16—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies
    • H05B41/18—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having a starting switch

Definitions

  • the invention relates to a circuit arrangement according to the preamble of Claim 1 and an associated electrical system that a discharge lamp comprises suitable for operation on an inductive ballast is.
  • These are, in particular, high and ultra-high pressure discharge lamps, which are increasingly widespread in all areas due to their good light output of lighting technology. Due to their special properties their ignition and operation is usually difficult. This applies in particular to high pressure sodium lamps with relatively high xenon pressure. Because of their excellent Luminous efficacy makes these lamps particularly suitable for street lighting. They often replace existing systems with much lower efficiency, for example mercury vapor lamps. With this problem is additionally the problem of power reduction (with the same luminous flux) solve, resulting in an overall energy saving.
  • the invention also relates to a method for ignition and operation a discharge lamp.
  • a circuit arrangement is described which the operation of a high pressure sodium lamp with high noble gas filling pressure (typically 2 atm xenon) and low power at a ballast inductor for higher powers (this arrangement is known as retrofit or plug-in technology), in particular the ignition of the lamp due to the very high cold filling pressure is considerably more difficult.
  • DE-A 31 48 821 describes in particular one on a capacitor based circuit for a high-pressure discharge lamp with auxiliary ignition electrode, which provides an increased voltage between the two main electrodes. An ignition of lamps with a very high cold filling pressure is with these Circuits are not possible.
  • US 3,732,460 describes a circuit for Fast cold and warm ignition with pulses up to 20 kV. The circuit used a capacitor in parallel with the electrodes, causing the open circuit voltage can be increased to three times the value.
  • circuits with very wide (high-energy) pulses are known, which enable the ignition and takeover of burners with a very high cold filling pressure.
  • very large, voluminous ignition inductors for rectified RF pulses required (DE-A 34 26 491).
  • a so-called internal fuse which short-circuits the series inductance for a short time creates a relatively wide one Firing pulse.
  • a corresponding arrangement can be found in US-A 5 336 974 and US-A 5 185 557.
  • a disadvantage is that the series inductance is loaded with the entire ignition voltage. This is for most ballasts harmful.
  • An additional task is to specify a method for doing so Operate lamp and a compact unit consisting of lamp and circuit arrangement specify.
  • the object was achieved in that a circuit arrangement was developed in which one of the assigned lamps connected in parallel Capacity to a voltage (take-over voltage) higher than the required and So far, only the desired (usual) open circuit voltage has been charged.
  • the Open-circuit voltage corresponds to the input voltage in conventional ballasts. After the breakdown, this voltage is immediately transferred to the plasma made available.
  • the increased voltage is provided by at least one of the following measures: By switching on one Resonance circuit (preferred), by a resonance increase or by a Combination of both.
  • the power is reduced by means of a phase control which is known per se in principle (so.). It can adhere to the maximum permitted Radio interference voltage after the lamp has been ignited and the lamp connected in parallel Capacitance (takeover capacitor) separated from the electrical circuit , which causes the periodic switching of a low-impedance source a capacity is prevented.
  • phase control which is known per se in principle (so.). It can adhere to the maximum permitted Radio interference voltage after the lamp has been ignited and the lamp connected in parallel Capacitance (takeover capacitor) separated from the electrical circuit , which causes the periodic switching of a low-impedance source a capacity is prevented.
  • Discharge lamps with very high filling pressure e.g. high pressure sodium vapor lamps with a very high xenon cold filling pressure of typically 1 to 3 bar
  • Discharge lamps with very high filling pressure are often difficult to close ignite because a high ignition voltage is required for the first breakdown and the takeover was very slow.
  • the invention is particularly suitable for so-called retrofit lamps (plug-in), a typical example is a circuit arrangement for the ignition and the Operation of a 70 W high pressure sodium lamp (with 2 atm xenon cold filling pressure) on one Burning point for originally using a 125 W mercury lamp the original ballast inductance.
  • a particularly preferred embodiment should at the same time adjust the lamp power (preferably reduction) be made possible.
  • a circuit arrangement was developed in which a capacitance (takeover capacitance) connected in parallel with the lamp to a voltage ( Takeover voltage U takeover > ⁇ 2 x U Netz_eff ), which is higher than the required (usual) open circuit voltage. After the breakdown, this voltage is immediately made available to the plasma.
  • the increased voltage is preferably provided by a switch-on process on a resonant circuit.
  • the present circuit can be divided into two networks, namely one for power reduction (by phase cut) and one for the actual ignition circuit.
  • One of the known leading edge control systems is preferably used to reduce the power Application, depending on the discharge vessel used (for example made of ceramic for a high pressure sodium lamp) but not a network for one Simmer power is required (see for example DE-A 34 38 003).
  • the exemplary lamp used (retrofit lamp with sodium vapor and 2 atm xenon) required about half the power to achieve the same lighting data as the mercury lamp originally intended for this burning point.
  • the belittling the power from, for example, 120 W to approx. 60 W is achieved by cutting each sine half-wave with a phase angle of approx. 1 to 2 ms.
  • a switching element serves advantageously a triac.
  • the phase angle is assigned to the triac Ignition circuit (for example RC element with diac) determined.
  • To stabilize the phase angle with changing mains voltage stabilization of the charging voltage for the capacitance of the gate ignition circuit of the diacs
  • the control circuit of the triac can be used with only one-sided DC coupling to the reference potential (see Figure 1b) as well be designed with direct coupling ( Figure 1c, 2b).
  • the ignition device of the circuit arrangement according to the invention preferably represents a superimposed ignition.
  • the takeover capacity of the ignition circuit (C2) is first charged by the current of the series inductance L1 (choke current).
  • This resonant circuit is excited by switching the switching element S1.
  • connection of the respective phase-cut sine half-wave by the switching element S1 can be regarded as a step function (switch-on process). This can result in a maximum voltage surge of 2 x U 0 at capacitor C2.
  • the voltage of the takeover capacitance C2 is preferably also above one Switching means (S2) of an additional network of an ignition circuit (preferred uses a spark gap). Is the ignition voltage of this spark gap reached, it breaks through and another third capacitor is preferred loaded.
  • the current flowing (approx. 100 A) creates one in the primary winding Ignition transformer T1 a voltage that transforms up through its secondary winding and is applied to the electrodes of the lamp.
  • the takeover capacity C2 blocks this high voltage from the rest of the circuit (especially the ballast inductance) from. Furthermore, the circle is through the takeover capacity closed towards the lamp.
  • This impedance can be preferred through a choke L3 (for AC) or through a resistor or similar. (for DC) be realized.
  • the lamp After ignition and arc acceptance in the lamp, the lamp can capacitance connected in parallel (take-over capacitor C2) by means of a further, switching element S3 connected in series (a spark gap is preferably used) be disconnected from the circuit. This is especially for compliance the legal regulations on permissible radio interference voltages are recommended, wherein the periodic switching of a low-resistance source to a capacitance is prevented.
  • a take-over capacitance C2 connected in parallel to the lamp L is charged by the choke current of the ballast impedance L1 (with associated resistor R D ) after switching through a switching element S1.
  • an additional charging capacitor C3 is connected in parallel with the take-over capacitor via switching element S2.
  • the implementation of a circuit arrangement is shown in Figure 1b.
  • the so too operating lamp L is, for example, a high-pressure sodium lamp with a power of 70 W. It replaces a 125 W mercury lamp with the same lighting technology Data.
  • the circuit arrangement is in the housing of the ballast L1 or housed directly in the lamp base or base housing or as a separate one Device connected behind the ballast L1.
  • the circuit arrangement contains two successive networks, a phase control PS and a superposition ignition circuit ZK.
  • a switching element is used Triac Q1, which is serial to the lamp circuit just behind the ballast impedance L1 is switched.
  • the phase angle is determined by an RC element, consisting of from the RC combination R1, R2, C1 arranged in series. This RC link lies parallel to the main electrodes of the triac Q1.
  • the defined ignition of the Triacs Q1 takes place via a diac Q2, which connects the control electrode of the triac with a contact point connects between R2 and C1.
  • Mains voltage (corresponding to a stabilization of the charging voltage for capacitor C1) is a varistor RV1 between R1 and the second mains voltage contact CE2 inserted.
  • the reduction in performance is carried out by gating each sine half-wave with a phase angle of approx. 1.2 ms.
  • the ignition circuit of the triac (consisting of the RC element R1, R2, C1 and the diac Q2) has only a one-sided direct current coupling to the reference potential. This allows a particularly simple execution.
  • Essential component of the Ignition circuit is an ignition capacitor C2, which is parallel to the electrodes of the lamp bridged the output of the phase control PS.
  • C2 is very advantageous chosen much larger than C1. This provides a coupling to the reference potential (C1 can be charged) and the triac can be ignited.
  • C2 After applying the mains voltage, C2 is charged first by the charging current from C1 and after the triac is switched through by the current of the ballast impedance L1.
  • C2 forms a series resonant circuit with L1 (including the resistance R D of the ballast impedance L1 and the resistance X S1 of the switching element S1).
  • Q1 is the associated switch S1, as explained in the basic circuit diagram (FIG. 1a), in which the series circuit comprising R D / X S1 / L1 / C2 is shown.
  • the circuit arrangement consists of the phase gating network PS, the C2 containing charge circuit LK and the additional ignition circuit ZKZ.
  • a particularly advantageous circuit arrangement SCH is shown in FIG is preferably integrated in the base (threaded part) S of a high-pressure sodium lamp L, see Figure 3a.
  • the lamp has an outer bulb AK and a ceramic discharge vessel EG, in which two electrodes EO face each other.
  • the filling of the Discharge vessel does not use mercury and only uses sodium and approx. 2 bar xenon (cold).
  • the circuit arrangement SCH can, however, also at least partially in a separate one Base housing SG (or in an operating device together with the ballast impedance) be accommodated, see Figure 3b.
  • the circuit arrangement SCH is in Figure 2a as a principle and in Figure 2b in one concrete implementation.
  • the advantage of the circuit according to FIG. 2b is that Defined coupling of the triac Q1 (and its associated gate circuit), whereby Prevents the charge of C2 from swinging back even for slower types and there is a rectangular takeover voltage with possible values also greater than 2 * ⁇ 2 * Uo_eff results.
  • the resistor R3 By means of the resistor R3, the height the takeover voltage can be set.
  • the size of R3 is heavily dependent from the phase angle.
  • the maximum achievable level of the takeover voltage is essentially on the quality of the capacitor C2 and on the reverse voltage of the Triac Q1.
  • the switching element S3 causes decoupling of takeover capacitor C2 after ignition and takeover of Lamp.
  • a spark gap FS2 with a breakdown voltage comes as S3 greater than the lamp voltage used. So an increased radio interference voltage, like when switching a low-impedance source to a capacitor occurs, avoided.
  • the size of R22 depends on the lamp impedance. The voltage across C4 should definitely be symmetrical.
  • the supply of the mains voltage (between the contacts CE1 and CE2) on the circuit arrangement SCH takes place via the separate, already before - namely ballast originally used for a 125 W mercury vapor lamp the impedance L1, which is directly connected to the contact CE1. It is about a common device.
  • a leading edge control PS contains the circuit arrangement another network ZKZ for the generation of a special high high voltage pulse to ignite the lamp, consisting of an ignition transformer T1, a capacitor C3 and an intermediate one Switching element FS1 in the form of a spark gap.
  • the voltage of C2 is also present across the spark gap FS1. Is the ignition voltage reaches the spark gap FS1, it breaks through and C3 is charged.
  • the current now flowing (approx. 100 A) generates one in the primary winding PW of T1 Voltage which is stepped up via the secondary winding SW and on the lamp L is present.
  • the capacitor C2 blocks the high voltage from the rest Switching (in particular from the lamp ballast inductance L1). Of C2 also closes the circle towards the lamp. This process is repeated within a half wave several times, each time a charge division between C2 and C3 (voltage rise at C3, voltage drop at C2). With the help of an additional inductance L2 in the ignition circuit ZKZ, the ignition pulse additionally shaped.
  • Fig. 4 shows the current and voltage curves as a function of time for the Embodiment of Figure 2b over a period of 21 ms.
  • Figure 4a shows the Current (in A) in the series inductance L1.
  • Figure 4b shows the voltage (in kV) on Ignition capacitor C2.
  • the takeover voltage U_C2 is approximately 0.7 kV (700 V).
  • the internal voltage between the electrodes (in kV) is specified there.
  • the ignition pulses can also be seen there.
  • Figure 4d Voltage (in kV) plotted across choke L1.
  • This circuit arrangement enables an extremely compact implementation, so that they in the usual screw base of a high pressure discharge lamp or in a small one (usual) base housing can be accommodated ( Figure 3). Are there neither auxiliary electrodes on the discharge vessel nor an internal igniter in the outer bulb necessary.
  • FIG. 5 shows the takeover voltage (in kV) with the ignition pulses of the circuit variant according to Figure 2b.
  • the ignition pulses are repeated approximately every 10 ms.
  • FIG. 6 shows a single ignition pulse with a high time resolution of 2 ⁇ s.
  • FIG. 7 shows the result of the radio interference voltage measurement of the circuit according to FIG. 1b.
  • FIG. 8 shows the result of the radio interference voltage measurement of the circuit Fig. 2b.
  • FIGS. 9a and 9b Another exemplary embodiment of a circuit arrangement is shown in FIGS. 9a and 9b shown.
  • the lamp to be operated with it is, for example, a high pressure sodium lamp with a power of 70 W. It replaces a 125 W mercury lamp with the same lighting data.
  • the circuit arrangement is in Housing of the ballast housed or as a separate device behind the Ballast switched.
  • the circuit arrangement consists of two in a row switched parts, a phase control PS and an elementary Ignition circuit ZK.
  • the power is reduced by cutting each sine half-wave with a Phase angle of approx. 1.5 ms.
  • a triac Q1 (serial in the Lamp circuit directly behind the ballast impedance L1).
  • the phase angle is determined by an RC element consisting of the one arranged in series RC combination R1, C1. This RC element is parallel to the main electrodes of the Triac Q1.
  • the defined ignition of the triac takes place via a Diac Q2, which the Control electrode of the triac connects to a contact point between R1 and C1.
  • the ignition circuit of the triac (consisting of the RC element R1, C1 and the diac Q2) has only a one-sided direct current coupling to the reference potential. This not only allows a particularly simple execution of the triac ignition circuit, but this also results in a switch-on process involving the ignition circuit the lamp can be realized.
  • An essential component of the ignition circuit is an ignition capacitor C2, the output of the phase control in parallel with the electrodes of the lamp PS bridged.
  • C2 is advantageously chosen to be much larger than C1 (typically 10 to 100 times larger). This creates a coupling to the reference potential provided (C1 can be charged) and enables the triac to ignite.
  • the lamp ignition circuit ZK of this circuit arrangement also uses networks known per se in addition to C2. It can also take advantage of an overlay ignition.
  • C2 After applying the mains voltage, C2 is charged first by the charging current from C1 and after the triac is switched through by the current of the ballast impedance L1.
  • C2 forms a series resonant circuit with L1 and its resistor R D.
  • Q1 is the associated switch S1, as explained in the basic circuit diagram (FIG. 9b), in which the series connection from R D / L1 / C2 is shown.
  • the step S1 is symbolized by the switch S1. This makes it possible to increase the voltage to twice the mains voltage U o .

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  • Circuit Arrangements For Discharge Lamps (AREA)
EP00107630A 1999-05-20 2000-04-08 Circuit, système électrique associé ainsi que lampe à décharge avec un tel circuit et son procédé d'alimentation Withdrawn EP1054579A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19923237A DE19923237A1 (de) 1999-05-20 1999-05-20 Schaltungsanordnung, zugeordnetes elektrisches System sowie Entladungslampe mit derartiger Schaltungsanordnung und Verfahren zu ihrem Betrieb
DE19923237 1999-05-20

Publications (2)

Publication Number Publication Date
EP1054579A2 true EP1054579A2 (fr) 2000-11-22
EP1054579A3 EP1054579A3 (fr) 2004-06-23

Family

ID=7908683

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00107630A Withdrawn EP1054579A3 (fr) 1999-05-20 2000-04-08 Circuit, système électrique associé ainsi que lampe à décharge avec un tel circuit et son procédé d'alimentation

Country Status (5)

Country Link
US (1) US6323604B1 (fr)
EP (1) EP1054579A3 (fr)
JP (1) JP2000348884A (fr)
CA (1) CA2308915A1 (fr)
DE (1) DE19923237A1 (fr)

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JP4070420B2 (ja) * 2001-03-23 2008-04-02 フェニックス電機株式会社 超高圧放電灯の点灯方法と点灯装置
AU2003202788A1 (en) * 2002-03-13 2003-09-22 Koninklijke Philips Electronics N.V. Electric circuit for igniting a discharge lamp, and electric component module and discharge lamp incorporating such an electric circuit
DE102004045834A1 (de) * 2004-09-22 2006-03-23 Bag Electronics Gmbh Zündgerät
DE102004052299A1 (de) * 2004-10-27 2006-05-04 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Zündvorrichtung für eine Hochdruckentlandungslampe und Hochdruckentladungslampe mit Zündvorrichtung sowie Betriebsverfahren für eine Hochdruckentladungslampe
US7330000B2 (en) * 2006-02-03 2008-02-12 Shimon Limor Discharge lighting bulbs control system
WO2008010213A2 (fr) * 2006-07-17 2008-01-24 Power Electronics Systems (2006) Ltd. Système d'alimentation à tension variable
DE102008004787A1 (de) * 2008-01-17 2009-07-23 Bag Electronics Gmbh Zündgerät mit zwei Eingangspolen
CN101965754B (zh) * 2008-02-25 2014-06-04 奥斯兰姆有限公司 用于产生灯的点燃电压的装置和方法
US8421363B2 (en) * 2008-07-02 2013-04-16 Jianwu Li Low ignition voltage instant start for hot re-strike of high intensity discharge lamp
US20100001628A1 (en) * 2008-07-02 2010-01-07 General Electric Company Igniter integrated lamp socket for hot re-strike of high intensity discharge lamp
US8653727B2 (en) 2008-11-07 2014-02-18 General Electric Compan HID lighting assembly capable of instant on/off cycle operation
DE102011007582A1 (de) 2011-04-18 2012-10-18 Osram Ag Hochdruckentladungslampe mit integriertem Vorschaltgerät
US9674907B1 (en) * 2015-04-09 2017-06-06 Universal Lighting Technologies, Inc. Input surge protection circuit and method for a non-isolated buck-boost LED driver
US10707746B1 (en) 2018-05-31 2020-07-07 Universal Lighting Technologies, Inc. Power converter with independent multiplier input for PFC circuit

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GB824906A (en) * 1957-10-15 1959-12-09 Engelhard Ind Inc Improvements in or relating to an operating circuit for electrical discharge lamps
DE2138589A1 (de) * 1971-08-02 1973-03-01 Gen Electric Co Ltd Betriebsschaltung fuer elektrische entladungslampen
US3925705A (en) * 1974-05-15 1975-12-09 Westinghouse Electric Corp Low-cost power-reducing device for hid lamp
US4134043A (en) * 1976-04-07 1979-01-09 Esquire, Inc. Lighting circuits
EP0030785A1 (fr) * 1979-09-20 1981-06-24 Davis Engineering Limited Circuits d'adaptation pour lampes à décharge
US5606222A (en) * 1994-12-29 1997-02-25 Philips Electronics North America Corporation Lighting system with a device for reducing system wattage
DE19731168A1 (de) * 1997-07-21 1999-01-28 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Beleuchtungssystem

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NL8006802A (nl) 1980-12-16 1982-07-16 Philips Nv Starter voor het ontsteken van een gas- en/of dampontladingsbuis, alsmede elektrische inrichting en lamp voorzien van een dergelijke starter.
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CA1253913A (fr) 1984-06-18 1989-05-09 Cornelis A.J. Jacobs Lampe a decharge sous vapeur de sodium haute pression
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Publication number Priority date Publication date Assignee Title
GB824906A (en) * 1957-10-15 1959-12-09 Engelhard Ind Inc Improvements in or relating to an operating circuit for electrical discharge lamps
DE2138589A1 (de) * 1971-08-02 1973-03-01 Gen Electric Co Ltd Betriebsschaltung fuer elektrische entladungslampen
US3925705A (en) * 1974-05-15 1975-12-09 Westinghouse Electric Corp Low-cost power-reducing device for hid lamp
US4134043A (en) * 1976-04-07 1979-01-09 Esquire, Inc. Lighting circuits
EP0030785A1 (fr) * 1979-09-20 1981-06-24 Davis Engineering Limited Circuits d'adaptation pour lampes à décharge
US5606222A (en) * 1994-12-29 1997-02-25 Philips Electronics North America Corporation Lighting system with a device for reducing system wattage
DE19731168A1 (de) * 1997-07-21 1999-01-28 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Beleuchtungssystem

Also Published As

Publication number Publication date
CA2308915A1 (fr) 2000-11-20
DE19923237A1 (de) 2000-11-23
EP1054579A3 (fr) 2004-06-23
JP2000348884A (ja) 2000-12-15
US6323604B1 (en) 2001-11-27

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