Nothing Special   »   [go: up one dir, main page]

EP2080423A1 - Procédé de fonctionnement d'une lampe à uv - Google Patents

Procédé de fonctionnement d'une lampe à uv

Info

Publication number
EP2080423A1
EP2080423A1 EP07816177A EP07816177A EP2080423A1 EP 2080423 A1 EP2080423 A1 EP 2080423A1 EP 07816177 A EP07816177 A EP 07816177A EP 07816177 A EP07816177 A EP 07816177A EP 2080423 A1 EP2080423 A1 EP 2080423A1
Authority
EP
European Patent Office
Prior art keywords
lamp
voltage
ignition
frequency
inverter
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Withdrawn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
EP07816177A
Other languages
German (de)
English (en)
Inventor
Marcel Kunz
Dieter Bischof
Reinhard Braun
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pantec Engineering AG
Original Assignee
Pantec Engineering AG
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 Pantec Engineering AG filed Critical Pantec Engineering AG
Publication of EP2080423A1 publication Critical patent/EP2080423A1/fr
Withdrawn legal-status Critical Current

Links

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
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations

Definitions

  • the invention relates to a method for operating a UV lamp according to the preamble of claim 1 or 2.
  • Powerful UV lamps are used as UV lamps for a variety of purposes. For example, for drying and / or curing liquids, gels, adhesives, paints and paints. The UV radiation will cause a chemical reaction. For example, DNA strands can also be separated. In general, UV irradiation with such lamps can support chemical processes, as well as the exposure of photoactive materials (e.g., lithography), or fluorescence excitation of various materials (e.g., bill validators). This technique is mainly used for UV curable materials such as curable polymers, paints and adhesives.
  • Such UV lamps are designed according to the prior art as gas discharge lamps and are electrically powered and driven with appropriately suitable ballasts.
  • the characteristic of such powerful gas discharges require the operation to comply with certain measures.
  • the lamp is operated on the AC mains and connected in series with the lamp a choke to limit the current.
  • measures must be taken to ignite the gas discharge, such as the application of a voltage pulse to the discharge line to initiate the discharge. This is a voltage which is excessive compared to the burning voltage and which is applied for a short time and is no longer necessary after ignition has taken place. After ignition, the impedance of the discharge path is lower and the lamp continues to burn with the aid of the applied AC voltage.
  • ballasts for example traditional throttle controls, as well as increasingly, special electronic ballasts (EVG) are used for the control of a UV lamp.
  • KVG traditional throttle controls
  • EVG special electronic ballasts
  • ballasts must be able to provide the flat characteristic of a UV lamp - the burning voltage is almost independent of the current.
  • the conventional ballasts use the characteristic of the choke and are therefore connected in series to the 400V AC mains. For the adjustment of the lamp power single additional chokes are switched to it. This means, for example, with the switch open with 50% power to drive with the switch closed with 100% power.
  • a ignitor is needed to start the spotlight.
  • a compensation of the reactive current is necessary.
  • ballasts are large and heavy chokes, transducers and transformers with iron cores and due to the low frequency of 50Hz, components with high inductance values. High stray fields and thermal dependence of the electrical properties are further disadvantages. Each KVG unbalanced the three - phase network.
  • EP 0 741 503 A1 describes a circuit arrangement and a method for operating a high-pressure gas discharge lamp, in which operation is also to be possible with lower power than with rated power. It is proposed for nominal power to operate the lamp with a conventional ballast with low-frequency energy and to switch in operation with reduced power to a higher-frequency electronic ballast. This arrangement requires two ballasts and is therefore expensive. In addition, the power can only be adjusted in two stages, ie not be varied continuously.
  • the object of the present invention is to eliminate the disadvantages of the prior art.
  • the object of the present invention is to realize a method for operating a UV lamp, which enables a simplified and economical operation of the UV lamp using largely standardized components which comprises all the essential operating elements, including control for the operation of the lamp arrangement, in a single system and which can be easily integrated into a higher-level process control.
  • the arrangement for operating the UV lamp and the method itself should be simple and economical to implement.
  • the method according to the invention for operating a UV lamp comprises the following steps:
  • the electrical supply of the inverter is provided by a rectified voltage of the supply network
  • the inverter generates a bipolar supply voltage which can be adjusted in size by specifying a specific pulse width ratio, with a selectable adjustable frequency, both of which are specified by an electronic control; after the converter has been put into operation, the bipolar voltage is applied to the electrodes of the UV lamp and an ignition process is initiated on the discharge path of the UV lamp and the ignition carried out is monitored with the aid of the controller,
  • the UV lamp is burned in by detecting or determining the operating state of the UV lamp by means of monitoring means, and by the controller monitoring and processing the same and controlling the bipolar supply voltage and / or or adjusting and / or regulating its frequency at the converter until the burn-in phase is completed such that the predetermined lamp-specific parameters are observed,
  • the lamp power is specified without exceeding the permissible parameters, whereby the UV lamp reaches readiness for operation and the desired lamp power is set for the following phase of operation by varying the frequency and / or the voltage.
  • Control in the form of a peripheral interface for further process processing available.
  • This method allows a very smooth operation of the lamp and a very flexible process management with complete integration of all necessary conditions for safe operation in a single arrangement thanks to the voltage and frequency control of the inverter. It also makes it possible to operate different lamp types and outputs with the same concept. A scaling of the performance classes with standard components is thus given in a very large area.
  • the ignition process can be initiated with a separate ignition arrangement or an additional ignitor, by briefly applying or superimposing a voltage that is excessive with respect to the supply voltage as a voltage pulse with a sufficiently large voltage time area.
  • the proposed method with the control of the frequency and / or the output voltage of the inverter allows to completely dispense with such an additional ignitor.
  • the arrangement is greatly simplified and allows a gentle ignition of the lamp.
  • the current-limiting means are advantageously made of a series-connected throttle, which further simplifies the structure of the arrangement and additionally allows a voltage increase on the lamp to ignite in a simple manner when the electronic control for the ignition Frequency and voltage increases according to preset values until the ignition takes place.
  • the ignition process can be easily monitored, preferably by measuring the voltage dip and / or the increase in current at the lamp or in the supply lines or on the inverter, or with a light sensor. Should the ignition be unsuccessful, one or more additional ignition events can be initiated automatically, as required, until a stable, stable operating state is achieved.
  • the operating power of the lamp is set or regulated with the frequency according to the higher specification or according to a profile with the control.
  • a movable shutter can be operated as a shutter in front of the lamp by means of the controller according to the process specifications. This shutter can be opened, for example, the UV radiation of the lamp as soon as the burn-in phase is over and stable operation is ensured, and closed in a targeted manner after the dose has been delivered to the workpiece to be machined.
  • the controller itself advantageously has an interface which makes it possible to connect the system to another external, higher-level process control. It thus becomes possible to construct the system in modular form as an independent unit and to reliably operate and monitor the UV lamp with all its operating parameters.
  • FIG. 1 shows schematically a preferred circuit arrangement of the power supply and control system for the operation of UV gas discharge lamps
  • Lamp with preferred ignition with the help of the voltage frequency Ignition process by the controlled inverter with corresponding steps according to the characteristic of Figure 2;
  • FIG 4 as Figure 2, but with external separate ignitor.
  • Fig. 6 Schematically a circuit arrangement of the supply and control system for the operation of UV gas discharge lamps with a preferred separate ignitor as a starting aid;
  • FIG. 7 shows in detail a preferred circuit arrangement for a Zünd arrivingn- circuit of a Zündauss according to the arrangement of Figure 6.
  • a converter 1 is used as a ballast with a full bridge 4, which converts the input voltage 2, 2 'into a bipolar voltage with a predefinable frequency and voltage and at the output 16, 16' of the inverter 1 for the lamp 8 makes available.
  • the lamp 8 is connected via the supply lines 17, 18, 19 to the outputs 16, 16 'of the converter via a series-connected throttle 13 as a current limiting element. It is also possible to provide other current-limiting means than the throttle 13, such as, for example, directly inside the converter 1.
  • the throttle 13 is a particularly easy-to-implement component and it is robust and is therefore used with preference.
  • the full bridge 4 is operated via a driver circuit 3 and controlled by the control unit 14 via the supply line 6 for the setpoint specifications such that frequency and voltage can be selected on the lamp 8 in a wide range.
  • the DC voltage 5 at the input 2, 2 'or the output voltage at the converter 1 is detected by the controller 14 and processed according to the setpoint specifications.
  • the lamp penstrom 7 measured and detected by the controller 14 and processed.
  • the controller 14 advantageously has an interface, for example with input and output lines 15, which enable a bus connection, for example a field bus, to a higher-level process control.
  • the UV lamp 8 is arranged in a cassette-type lamp holder 9.
  • a reflector 21 is arranged in the cassette-type lamp holder 9 in such a way that the radiation emitted by the UV lamp strikes bundled on the substrate and does not permit excessive heating of the substrate.
  • the cassette 9 is designed to be open in the front region where the workpieces to be treated are placed.
  • a swiveling aperture with a controlled drive is advantageously provided as a shutter 20, in order to be able to carry out the exposure of the workpiece with UV light in a targeted and controlled manner.
  • the drive of this shutter 20 is in turn controlled by the controller 14.
  • a temperature sensor 11 is provided in the region of the lamp, for example a platinum sensor, such as a PT 100, whose signal is again detected by the controller 14 and it is ensured that the lamp never thermally overloads becomes. It is also possible to provide other monitoring means 11, for example a sensor for detecting the UV emission of the UV lamp 8, or both methods can be combined in order to be able to control the operating state of the lamp at any time.
  • the controller 14 is advantageously designed as a programmable controller, such as a computer controller, a microcomputer controller or a PLC controller. With this control, the lamp can be gently ignited and operated at the desired operating values in compliance with the delicate operating requirements, and these are constantly monitored for correct operation. In addition, alteration-related changes can be compensated automatically by the controller 14 by tracking the parameters of power or time of the UV exposure in one or in combination. Additive- lend this can be specified or corrected with the shutter 20. The method makes it possible to implement a flexible and application-specific method.
  • an external ignition device 12 is shown in Figure 1 which emits an ignition voltage via the lamp 8 and can also be coordinated by the controller 14.
  • This type of ignition can be used for individual dedicated dopes or specific lamp geometries. Although the operation of this type of ignition is somewhat less light bulbs, as the ignition directly with the controlled frequency and voltage variation of the inverter voltage itself, which is referred to here as internal ignition.
  • the internal ignition is based on the procedure that over time a defined frequency and output voltage (URMS_OUT) is set up.
  • This method of igniting the UV lamp 8 requires the inverter 1 and the choke 13, 31 as the only power components.
  • the course of the voltage as a function of time is shown in FIG. 2 and the variation of the frequency in FIG Voltage and frequency creates a voltage - time surface which causes the UV lamp 8 to ignite. It uses the property of the voltage overshoot of a series resonant circuit, formed from the inductance of the choke 13, 31 and the capacity of the UV lamp 8, from.
  • the UV lamp 8 can be considered idealized as a parallel connection of a capacitance and an ohmic resistor, wherein the capacitance changes after the ignition.
  • This idealization of the UV lamp is essentially defined by the lamp geometry and filling.
  • the ignition of the UV lamp 8 takes place at a voltage that occurs both when reaching the positive and when reaching the negative voltage.
  • the idea according to the invention thus lies in the combination of the three components and a special method of varying the lamp voltage in combination with the frequency.
  • Outgoing from point A is preferably continuously the frequency and at the same time the rms value of the output voltage at the inverter 1 is varied or increased. These are increased until an ignition takes place and the transition from the glow discharge to the arc discharge B, ti is detected.
  • the transition from B to D manifests itself in a very high current increase and can therefore be easily detected.
  • the transition is in a known and repeatable frequency range F1, t1 to F2, t2. If the radiator could not be ignited, the controller 14 aborts the process at point C, t2. After a short dwell time, the ignition process is restarted, for example restarted at point A.
  • the voltage curve V1, t1 to V2, t2 corresponding to the representation in FIG. 2.
  • the discharge current and / or the voltage is regulated to a defined value until the required operating point of the UV radiator 8 (temperature, power) is reached, that is to say at point E.
  • the lamp 8 is set directly to the required nominal power F. From this point on the lamp 8 is ready for use, e.g. With dimming the power can be changed by varying the frequency to point G. Shown here as a reduction in frequency.
  • the phases point G to H, K to L can be defined as actual production phase or process phase. In this phase, the shutter 20 is selectively opened and closed again after reaching the process window.
  • a standby state is activated at point H by increasing the frequency F and lowering the voltage V, thereby lowering the power and disabling it again at point J, for example.
  • this standby phase HJ the shutter 20 is closed and the workpiece is changed for the next treatment, without the sensitive UV lamp 8 having to be switched off and re-ignited.
  • This standby phase can also be used in translating presses during the retraction phase.
  • the power can also be set by adjusting or regulating the voltage or it can also be specified in combination with the frequency variation by appropriate control of the inverter 1 with the control unit 14.
  • the voltage is adjusted at the inverter by setting a corresponding pulse width ratio, whereby the choke above the lamp shows a medium DC voltage reading.
  • the voltage waveform and the frequency response is shown analogously when an external ignitor 12 is used for ignition.
  • the ignition takes place here by superposing an excessive voltage, for example a voltage pulse, in the point D, ti wherein the inverter is operated at a fixed predetermined frequency and voltage to the lamp 8 and after ignition, as described above, the power values for the baking phase and the Operation is set or regulated by specifying the frequency and the voltage.
  • an external ignition device 12 is preferably operated over all phases of operation at a constant frequency, for example at a few hundred Hz, e.g. 250Hz.
  • Table 3 For a specific converter, reactor, UV lamp configuration, another numerical example for a voltage-frequency characteristic is given in the following table 3 for which the operating points according to FIGS. 2 and 3 are run through: Table 3:
  • the method is particularly suitable for lamp operating powers in the range of 0.5 to 30 KW at current values of 1A to 6OA.
  • the converter 1 without the ignition, at least voltages in the range of 10 to 1600V, preferably in the range of 10V to 500V and preferably variable generated and can deliver.
  • the arrangement must be such that the ignition voltage at the lamp 8 is greater than 800V, preferably greater than 1000V, but not more than 6000V.
  • the frequency of the output voltage of the inverter 1 should be within the range of 1 Hz to 100 kHz, preferably in the range of 1 Hz to 10 kHz and variable.
  • the bipolar voltage is in this case substantially symmetrical and advantageously substantially rectangular.
  • the feeding of the lamp 8 is advantageously carried out by a single inverter 1 and it is used with advantage a commercially available standard component.
  • This phase includes power control and / or control, preferably current regulation. This phase continues until thermally sufficient conditions are reached.
  • the conditions within the cassette 9 are of interest, and here too, in particular those of the UV lamp 8.
  • the power variation can be adjusted by adjusting the frequency and / or output voltage.
  • the standby power is set by adjusting the output voltage and / or frequency.
  • an external ignition device 12 can be completely dispensed with.
  • the voltage at the converter output 16, 16 ' is varied in such a way that frequency and voltage reach a value (voltage time area) defined for the ignition of the UV lamp 8, which fulfills the ignition conditions.
  • the UV lamp 8 is ignited with fewer components and gentler.
  • the programmable controller 14, such as a PLC may provide additional functions such as shutter 20, communication, and the like.
  • a bus connection (Profibus, Ethernet, 7) enables a connection to a higher-level controller.
  • controller 14 makes it possible to adapt important operating parameters, which shift due to aging, in order to ensure optimum conditions for the curing process over the lamp life.
  • an external ignition device is preferred in order to achieve reliable ignition, as shown schematically in FIG.
  • Such lamps for example, have a smaller diameter or a different doping which makes the ignition more difficult.
  • the advantage of this ignition aid (36) is that only low power components are used by the only auxiliary power but not the operating current for the UV lamp flows.
  • an additional, external ignition device 12 is connected as a starting aid in the power circuit with the negative line 39 and the positive line 40.
  • the ignition device 12 includes a transformer 30 with two windings 31, 32 which are coupled via a ferromagnetic core and an electrical circuit of the Zünd Anlagennbesciens 36.
  • the one winding is formed as a main winding 31 which forms the function of the throttle 13, 31 as a current-limiting element and in Series in one of the lamp leads 39, 40 is connected. It does not matter if this throttle 13, 31 is integrated into the negative line 39 or the positive line 40.
  • the transformer 30 with choke 31 and ignition coil 32 can be designed as a single component.
  • the second winding 32 represents the ignition winding and via this potential, a firing voltage via its two terminals 33, 34 is coupled.
  • the ignition voltage is provided at these two terminals 33, 34 by a Zünd Anlagennbe- circuit 36 which in turn a supply voltage from the Lampen connecting lines 39, 40 via its two terminals 35, 37.
  • This Zünd Anlagennbesciens 36 includes ahandsvervielfacheran Aunt, which from the on The lamp supply voltage provided by the inverter generates an increased voltage for safe ignition of the lamp. In most cases, a voltage doubling is preferred which is preferred.
  • a voltage limiter 46 it is advantageous to limit the ignition voltage across the feed line 17, 18, 39, 40 of the UV lamp 8 with a voltage limiter 46, so that the ignition voltage is essentially independent of the line length used, the UV lamp 8 nevertheless igniting safely can be.
  • a voltage limiter can also be provided directly in the Zünd Vietnamesenbesciens 36 via the feed terminals 35, 37.
  • the Zünd Anlagenbeschal- device 36 is operated via a switch 47 such that it is active only in the ignition phase and is deactivated in the operating phase of the lamp.
  • the schematic of a preferred arrangement for a Zünd Anlagenbesciens 36 is shown schematically in Figure 7.
  • the circuit for the voltage increase is preferably made of passive electronic components.
  • a suitable model tion is structured as follows. A capacitor and a diode are electrically connected in series, which in turn are connected in parallel with another separate series circuit of capacitor and diode. The two diodes are connected in anti-parallel.
  • On one side of the + terminal of the UV lamp 35 is connected and on the other side via an activation switch 47 - - connection of the UV lamp 37.
  • Parallel to + connection 35 and - terminal 37, a voltage limiter 46 is provided.
  • the polarities can, as already mentioned, also be reversed.
  • This Zünd Anlagennbesciens (36) can also be adapted with advantage with an additional auxiliary winding (32) to existing chokes (13) and thereby even retrofitted.
  • the ignition aid 12 is activated.
  • the capacitors are charged with a voltage doubling circuit until a defined voltage level is reached. The stored charge will be out of the
  • the two windings 31, 32 are used for the transformation of
  • Ignition voltage used From the ignition winding 32 to the main winding 31, the voltage is transformed up. The voltage of the transformed charge is at least so large that the ignition of the lamp 8 is made possible.
  • Main winding 31 is also used for smoothing the lamp current.
  • the required energy for the ignition (voltage-time area) is stored by charging the two capacitors 42, 43 to different voltage potentials.
  • the diodes 44, 45 and capacitors 42, 43 are connected so that a voltage multiplication (eg voltage doubling) arises. If the charge is sufficient large, that is, the charging voltage reaches a predetermined switching threshold of the voltage switch 41 so it is delivered to the ignition coil 32.
  • the ignition energy is up-converted with a conversion from the ignition coil 31 to the main coil 31.
  • the output voltage (ignition voltage) is limited with a voltage limit of 46
  • the ignition aid 12 is activated with a switch 47 during the ignition phase, in the operating phase it is deactivated. As long as the switch 47, the ignition aid 12 is activated in succession generates ignition pulses, which are defined in time by the wiring until the lamp 8 lights and the controller 14 via the switch 47, the ignition aid 47 is deactivated.
  • the preferred method of ignition with an external igniter 12 thus comprises at least the following steps: the ignition voltage is generated by charging at least two capacitors 42, 43 to voltage potentials to store the required energy for the ignition and that diodes 44, 45 with the capacitors 42, 43 are connected in such a way that at least one voltage doubling is achieved, and when the desired predetermined charging voltage reaches the corresponding switching threshold of a voltage switch 41, when turned on, it is output to the ignition winding 32 of the transformer 30 and thereby the ignition energy is converted by the ignition winding 32 to the choke 31, which forms the main winding, up-converted by predetermined value and the supply voltage to the UV - lamp 8 superimposed, whereby this is ignited, and the ignition, for example with a switch 47, during the ignition phase and activated in the operation phase is deactivated.
  • the UV system is an independent, complete system for controlling UV lamps, including temperature control and shutter control; - Use of a high-volume standard product with high quality, reliability, large performance classes, worldwide approvals, a large service network, guaranteed further development, significantly increases cost-effectiveness; - Use of an industrial bus interface (CANopen, Profibus); - Additional customer benefit in the form of a PLC for temperature control, shutter control, integrated PLC can be used by the end customer, eg for system control;
  • UV lamps are very sensitive to temperature influences.
  • the temperature has a decisive influence on the lifetime, light spectrum and the like. A fast, characteristic communication between actual temperature and nominal lamp power is therefore useful.
  • the lamp life can be determined by changing the ignition parameters over the operating time so that service interventions can be planned (for example in the case of color changes, ...) and need not be carried out when it is unfavorable.
  • the operating parameters of voltage and / or frequency during operation of the UV lamp and / or the shutter 20 may vary depending on the aging of the UV light.
  • Lamp be tracked by the controller 14 to predetermined values

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Ac-Ac Conversion (AREA)

Abstract

Procédé de fonctionnement d'une lampe à UV (8), comprenant les étapes suivantes : - un convertisseur (1) génère une tension d'alimentation bipolaire, des moyens (13) limiteurs de courant étant prévus, - le convertisseur (1) est alimenté par le réseau d'alimentation et il génère une tension d'alimentation bipolaire réglable dont la fréquence est réglable à volonté, toutes deux pouvant être prédéfinies par une commande (14) électronique, - un processus (B, D) d'allumage est initié au niveau de la lampe (8) et l'allumage (D) est surveillé par la commande (14), - l'allumage (D) est suivi d'une phase (D, E) de rodage en ce qu'au moins l'un des paramètres température, tension ou courant est détecté par la commande (14) et la tension d'alimentation bipolaire et/ou sa fréquence sont réglées sur le convertisseur (1) de manière à ce que les paramètres de la lampe soient maintenus, - la puissance nominale de la lampe est ensuite prédéfinie en vue d'atteindre l'ordre de marche (E, F) en faisant varier la fréquence ou la tension, en vue de régler la puissance souhaitée de la lampe pour la phase de fonctionnement suivante (G, H).
EP07816177A 2006-11-07 2007-10-05 Procédé de fonctionnement d'une lampe à uv Withdrawn EP2080423A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH17632006 2006-11-07
CH8902007 2007-06-05
PCT/CH2007/000494 WO2008055366A1 (fr) 2006-11-07 2007-10-05 Procédé de fonctionnement d'une lampe à uv

Publications (1)

Publication Number Publication Date
EP2080423A1 true EP2080423A1 (fr) 2009-07-22

Family

ID=38705063

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07816177A Withdrawn EP2080423A1 (fr) 2006-11-07 2007-10-05 Procédé de fonctionnement d'une lampe à uv

Country Status (2)

Country Link
EP (1) EP2080423A1 (fr)
WO (1) WO2008055366A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2088837B1 (fr) 2008-02-04 2011-06-01 Uviterno AG Procédé de fonctionnement d'une lampe UV
CN102458009B (zh) * 2010-10-22 2014-01-08 海洋王照明科技股份有限公司 一种便携式灯具及其电路
DE102016124116A1 (de) * 2016-12-12 2018-06-14 Sml Verwaltungs Gmbh Vorrichtung zur Ansteuerung einer Strahlungsquelle zum Aushärten von Auskleidungsschläuchen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8900703A (nl) * 1989-03-22 1990-10-16 Nedap Nv Hoogfrequent voorschakelapparaat.
DE4039161C2 (de) * 1990-12-07 2001-05-31 Zumtobel Ag Dornbirn System zur Steuerung der Helligkeit und des Betriebsverhaltens von Leuchtstofflampen
DE4309214A1 (de) * 1992-03-30 1993-10-07 Otto Diez Elektromaschinenbau Anordnung mit einer UV-Lampe
US6628093B2 (en) 2001-04-06 2003-09-30 Carlile R. Stevens Power inverter for driving alternating current loads

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008055366A1 *

Also Published As

Publication number Publication date
WO2008055366A1 (fr) 2008-05-15
WO2008055366A8 (fr) 2008-09-18

Similar Documents

Publication Publication Date Title
EP0338109B1 (fr) Convertisseur pour lampe à décharge
DE3903520C2 (fr)
DE2918314A1 (de) Netzgeraet fuer eine hochstrom-entladungslampe oder leuchtstoffroehre
DE3715162A1 (de) Schaltungsanordnung zum betrieb einer gasentladungslampe an einer gleichstromquelle
DE69827968T2 (de) Energiesparende Beleuchtungssteuerung
DE69902379T2 (de) Vorschaltgerät mit helligkeitssteuerung und regelverfahren für lampen unter verwendung eines frequenzgeregelten streufeldtransformators
DE3101568C2 (de) Schaltungsanordnung zum Betrieb von Niederdruckentladungslampen mit einstellbarem Lichtstrom
DE10064039A1 (de) Entladungslampen-Einschaltvorrichtung
DE3881025T2 (de) Schaltung fuer eine hochleistungslampe mit starker entladung.
DE3829388A1 (de) Schaltungsanordnung zum betrieb einer last
AT518059B1 (de) Lampentyperkennung durch leistungsfaktorkorrekturschaltung
EP1869951A1 (fr) Dispositif d'amorçage a transformateur piezoelectrique pour une lampe a decharge a haute pression
EP2080423A1 (fr) Procédé de fonctionnement d'une lampe à uv
EP2088837B1 (fr) Procédé de fonctionnement d'une lampe UV
EP0738455B1 (fr) Dispositif servant au fonctionnement d'une lampe a decharge
DE19964552B4 (de) Schaltungsanordnung zum Betreiben von Gasentladungslampen, insbesondere HID-Lampen
EP1492393B1 (fr) Circuit et méthode pour alimenter une lampe à décharge muni d'une détection de fin de durée de vie
EP2564674B1 (fr) Procédé et circuit de commande pour la mise en marche d'une lampe à décharge gazeuse
EP2266374B1 (fr) Régulation de puissance de lampes à décharge dans des circuits en demi-pont ou en pont intégral
EP1276355B1 (fr) Circuit ballast pour determiner la puissance de préchauffage
DE10206175A1 (de) Entladungslampen-Zündschaltung
EP1354500B1 (fr) Dispositif et procede de fonctionnement polyphase d'une lampe a decharge ou a vapeur metallique
DE102006031341A1 (de) Elektronisches Lampenvorschaltgerät zur Regelung von Betriebsparametern einer HF-betriebenen Leuchtstofflampe
DE10319950A1 (de) Betriebsgerät und Verfahren zum Betreiben von Gasentladungslampen
DE3608362A1 (de) Vorschaltgeraet fuer entladungslampen

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

17P Request for examination filed

Effective date: 20090608

AK Designated contracting states

Kind code of ref document: A1

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

17Q First examination report despatched

Effective date: 20100115

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

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

18D Application deemed to be withdrawn

Effective date: 20110826