WO1997008920A1 - Verfahren und schaltungsanordnung zum zünden einer hochdruck-gasentladungslampe - Google Patents
Verfahren und schaltungsanordnung zum zünden einer hochdruck-gasentladungslampe Download PDFInfo
- Publication number
- WO1997008920A1 WO1997008920A1 PCT/EP1996/003396 EP9603396W WO9708920A1 WO 1997008920 A1 WO1997008920 A1 WO 1997008920A1 EP 9603396 W EP9603396 W EP 9603396W WO 9708920 A1 WO9708920 A1 WO 9708920A1
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- WO
- WIPO (PCT)
- Prior art keywords
- ignition
- lamp
- circuit
- arrangement according
- circuit arrangement
- Prior art date
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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
Definitions
- the invention relates to a method for igniting a high-pressure gas discharge lamp according to the preamble of claim 1 and a circuit arrangement operated by the method for igniting a high-pressure gas discharge lamp.
- Fig. 4 shows one of these known ignition circuits, as described for example in DE 31 08 547 C2 or DE 31 08 548 C2.
- a high-pressure gas discharge lamp 4 (hereinafter also referred to as "lamp") is connected to the output connections 2 and 2 'of the ignition circuit.
- the ignition circuit has a pulse transformer 5, the secondary winding 6 of which in the live supply line between the lamp 4 and a conventional magnetic ballast 3, e.g. a choke is switched.
- the series circuit comprising the secondary winding 6 of the pulse transformer 5 and the lamp 4 is connected in parallel to a series circuit comprising a surge capacitor 7 and an auxiliary ignition capacitor 11, the surge capacitor 7 in turn being a series circuit comprising the primary winding 8 of the pulse transformer 5 and a switching element 9, which preferably switches symmetrically is connected in parallel.
- the symmetrically switching switching element 9 can be, for example, a four-layer diode, a triac or a Sidac. The use of a gas spark gap or a transistor controlled by a rectifier bridge is also conceivable. In Fig. 4, the symmetrically switching switching element 9 is shown as an example as Sidac.
- a charging resistor 13 is connected in parallel with the auxiliary ignition capacitor 11.
- timer circuit 10 known per se is shown in FIG. 4, but is not described in the aforementioned publications. The function of this timer circuit will be explained in detail later.
- the surge capacitor 7 is charged via the parallel connection of the auxiliary ignition capacitor 11 with the charging resistor 13 until a voltage exceeds the switching voltage of the Sidac 9, as a result of which the Sidac breaks down and becomes low-resistance.
- the surge capacitor 7 is connected to the primary winding 8 of the pulse transformer 5 short-circuited and discharged via the primary winding 8.
- the voltage drop in the primary winding 8 is stepped up in the ratio of the number of turns of the pulse transformer 5, so that an ignition pulse of approx. 4 kV on the lamp due to the supply voltage (mains voltage) present at the connections 1 and 1 ' 4 is caused.
- the series resonant circuit consisting of the choke 3 and the auxiliary ignition capacitor 11 is excited to oscillate with its natural frequency (approx. 500-2000 Hz), so that the auxiliary auxiliary capacitor 11 and the secondary winding 6 of the pulse transformer 5 are inflated Open circuit voltage arises.
- the Sidac 9 blocks with polarity reversal of the current and interrupts the circuit for the series resonant circuit consisting of the choke 3 and the auxiliary ignition capacitor 11.
- the surge capacitor 7 again reaches the switching voltage of the Sidac 9 and thereby switches it through again. This is repeated in the course of a network half-wave.
- the short sequence of ignition pulses when the supply voltage is too high ensures that even difficult-to-ignite lamps are ignited.
- the ignition circuit must be designed in accordance with the regulations of the lamp manufacturers in such a way that at least three ignition pulses per network half-wave are generated with a maximum pulse interval of 0.3 ms. Furthermore, the circuit is to be dimensioned such that the phase angle of the ignition pulse between 60 ° el and 90 ° el of the positive or negative mains half-wave, which increases in amount, is ensured for reliable lamp ignition.
- ignition pulses are continuously applied to the lamp after the lamp has been switched off in order to switch it on again or to re-ignite until the lamp has cooled down again so that it can re-ignite.
- Ignition pulses are thus applied to the lamp even when the lamp is not yet in the ignitable state.
- the electrodes Light up a glow discharge. however, this is not taken over by the lamp, so that the lamp does not ignite.
- the energy consumption for igniting the lamp is therefore unnecessarily high.
- the lamp is additionally heated by the glow discharge, so that the electrodes of the lamp can be damaged. This shortens the life of the lamp, especially if the lamp is to be ignited when it is hot.
- the first timer circuit corresponds to the timer circuit 10 shown in FIG. 4.
- ignition pulses are switched to the high-pressure gas discharge lamp 4 for a certain time, for example 11 minutes, the ignition device being switched off when the lamp 4 ends Total ignition time is not in operation, ie could not be ignited successfully. If the lamp 4 ignites before the total ignition time has elapsed (for example 11 minutes), the ignition time used up to that point is stored. Should the lamp go out again, for example for reasons of aging or by so-called mains wipers, the remaining time up to the predetermined total ignition time is used again in order to apply ignition pulses to the high-pressure gas discharge lamp 4 for a new ignition process. The total ignition time of 11 minutes is started when lamp 4 is switched on.
- An intermittent extinction of the lamp can also be caused, for example, by a voltage drop in the mains voltage. In this case it is desirable to re-ignite the lamp within the total ignition time.
- the aging of a lamp manifests itself, for example, in the fact that the operating voltage rises above the mains voltage, with the result that the lamp 4 can no longer be operated and switches itself off. If this occurs after the total ignition time, the lamp 4 remains switched off permanently.
- 4 further timer circuits with different total ignition times are currently available on the market. When the ignition device is switched off, the timer circuit is reset. In the variant of the timer circuit 10 shown in FIG.
- the ones applied to the high-pressure gas discharge lamp 4 are changed from Ignition pulses superimposed network half-waves counted by a control unit 15, which activates the controllable switch 12 after the set total ignition time, so that the resistor 14 is connected in parallel to the surge capacitor 7.
- the voltage divider thus formed from surge capacitor 7 and auxiliary ignition capacitor 11 as well as charging resistor 13 and parallel resistor 14 detunes the ignition circuit in such a way that the switching voltage of the switching element (Sidac) 9 can no longer be achieved.
- the control unit 15 concludes by counting the ignition pulses applied to the lamp 4 to the elapsed ignition time.
- the second known variant of a timer circuit is shown in FIG. 5.
- the actual ignition circuit corresponds to the ignition circuit shown in Fig. 4, so that a repeated explanation of the individual circuit elements can be omitted.
- the timer circuit 10 is connected between the actual ignition circuit and the AC voltage supply present at the connections 1 and 1 '.
- the control unit 15 of the timer circuit 10 in turn counts the mains half-waves applied to the lamp and superimposed by ignition pulses and uses this to deduce the past ignition time. After the set total ignition time has elapsed, the control unit 15 activates the controllable switch 12, so that the ignition circuit is disconnected from the AC voltage supply and is thereby switched off. This takes place regardless of the lamp type and the state of the lamp 4.
- the lamp 4 can only be re-ignited after a brief switch-off phase.
- Ignition circuit still unnecessarily high and damage to the lamp - as described above - can not be excluded even when using the ignition circuits shown in FIGS. 4 and 5, so that the lamp life is unnecessarily shortened.
- a further disadvantage is that the ignition time is monitored or measured by counting the network half-waves or ignition pulses. As a result, the measurement result is dependent on the mains frequency of the AC supply, with a difference between
- Mains frequency of 50Hz and 60Hz results in a time measurement difference of 20%.
- the invention is therefore based on the object of specifying a method and a circuit arrangement for igniting high-pressure gas discharge lamps with which the disadvantages described above can be avoided.
- a method and a circuit arrangement for igniting high-pressure gas discharge lamps are to be specified, thereby avoiding unnecessarily high energy consumption and unnecessary lamp damage, but still guaranteeing reliable lamp ignition.
- ignition pulses are applied to the lamp at intervals in order to ignite a high-pressure gas discharge lamp, ignition pulses being applied to the lamp alternately during a first time interval and the ignition operation being temporarily interrupted during a second time interval.
- the high-pressure gas discharge lamp is preferably only subjected to the ignition pulses for a relatively short time, for example 5 seconds, but it takes a longer time, for example 25 seconds, for the next ignition packet to be applied. In this way, it is permitted that a high-pressure gas discharge lamp in the hot state is only supplied with ignition pulses for a relatively short time, so that the time required for a hot lamp to be lit again can be shortened overall and the energy used can be reduced .
- a lamp which has been switched on once may not make more than a predetermined number of restartings, ie lamp ignitions, if the lamp has meanwhile switched off unintentionally or unintentionally. It can therefore be concluded that an aged lamp is present if the lamp switches off again unintentionally even after the specified number of lamp ignitions.
- the ignition circuit switches off after a predetermined total ignition time, the total ignition time preferably being measured independently of the selected mains frequency. If the lamp has not ignited at least once within the predetermined total ignition time, it is concluded according to the invention that either no lamp is present or the connected lamp is defective.
- the circuit arrangement essentially consists of a known ignition circuit, as shown for example in FIG. 4 or 5, and additionally has a timer circuit which performs the ignition operation of the ignition circuit controls according to the inventive method described above.
- the timer circuit comprises in addition to a lamp igniter kennungsvorrich device, which detects the successful ignition of a high pressure gas discharge lamp, two counter devices, which are provided for detecting the number of lamp ignitions or the past total ignition time. When the ignition circuit is switched off, all devices of the timer circuit are reset.
- the timer circuit according to the invention is used in particular analogously to the known timer circuit shown in FIG. 4, the interruption of the ignition operation, i.e. the non-application of the ignition pulses or the switching off of the ignition circuit is carried out by connecting a resistor in parallel with the aid of a controllable switch to the surge capacitor of the ignition circuit.
- a controllable switch can be, for example, a thyristor or transistor controlled via a rectifier, and a diode or a simple relay.
- the use of the timer circuit according to the invention is also possible at other points in the ignition circuit, in particular as shown in FIG. 5.
- FIG. 3 shows an embodiment of the control unit shown in FIG. 2 of the timer circuit according to the invention
- Fig. 4 shows a known ignition circuit with a first variant of a known
- Timer circuit and • 5 a known ignition circuit with a second variant of a known timer circuit Fig..
- Fig. 1 al shows an example of the three times a defective lamp is fired, during which a distinction is made between the high-burning phase, the nominal operating phase, during which the lamp voltage U L applied to the lamp is within a certain nominal operating voltage range, and during the lighting of the lamp the so-called cycling mode, in which the lamp voltage exceeds the nominal operating voltage.
- the repeated starting and extinguishing of a lamp shown in FIG. 1 a1) takes place in particular at the end of the service life of the high-pressure gas discharge lamp. Frequent switching off of the faulty lamp is disadvantageous, however, as this can result in the lamp flashing (so-called cycling mode).
- the frequent switching on and off of the lamp not only affects the ballast of the lamp, but the blinking can also have a very disruptive effect on the lighting.
- FIG. 1 a2) shows the known ignition operation described with reference to the known timer circuit shown in FIG. 4.
- a total ignition time of, for example, 11 minutes is predetermined for igniting the lamp.
- At the beginning of the ignition course shown in FIG. A2) there is still an ignition remaining time of 10 minutes 55 seconds.
- a first ignition of the lamp takes place during region 1 shown in FIG.
- a first ignition operation with a duration of 5 minutes takes place in area 2, so that after the lamp is lit again in area 3, an ignition remaining time of only 5 minutes 55 seconds is available.
- ignition pulses are applied to the lamp for a further 5 minutes until it lights again (areas 4, 5).
- After the third switch-off of the lamp only an ignition remaining time of 55 seconds is available, which is used during area 6, whereby after the total ignition time has elapsed, the lamp cannot be re-ignited and the timer circuit stops the ignition operation.
- FIG. 1 a shows the function of a timer circuit for an old lamp or in the event that the lamp is extinguished by so-called network wipers
- FIG. 1 b shows the function of a timer circuit in the case of a missing or defective lamp.
- Fig. 1 bl shows the ignition operation with the known timer circuit shown in Fig. 4, wherein in the case of a missing or defective lamp with the known timer circuit until the total ignition time ignition pulses to the continuously Lamp. After the total ignition time has elapsed, the entire ignition circuit is switched off.
- ignition pulses are applied to the lamp for, for example, 5 seconds to ignite the high-pressure gas discharge lamp and then the ignition operation is interrupted in the so-called standby mode, so that in this way the time until which a hot one Lamp is willing to ignite again, shortened overall and the energy used to ignite the lamp can be significantly reduced.
- the ignition pulses are only applied to the high-pressure gas discharge lamp at intervals.
- the ignition operation is completely stopped when the high-pressure gas discharge lamp is successfully ignited. It is also apparent from Fig. 1 a3) that a lamp, once switched on, should not make more than a certain number of re-starts, for example three, if in the meantime an unwanted, that is to say unintentional, switch-off of the lamp (for example due to the aging of the lamp or by wipers).
- the timing of the ignition operation is advantageously carried out independently of the mains frequency, preferably by an internal timer of the timer circuit. If the lamp switches off although it has already been started several times, for example three times, or if the lamp switches off after the set total ignition time has elapsed, this is interpreted according to the invention as the presence of a defective lamp.
- high-pressure sodium vapor discharge lamps can normally be ignited reliably within 4 minutes.
- Metal vapor high pressure gas discharge lamps are more difficult to ignite. Therefore, in the ignition circuit according to the invention, a lamp-type-dependent switchover can be provided, with the aid of which it is possible to switch to a second ignition method for metal vapor high-pressure gas discharge lamps, in order to also ensure reliable ignition for this lamp type.
- This modified Ignition method for high-pressure metal discharge gas discharge lamps basically corresponds to the ignition method for high-pressure sodium discharge gas lamps, but after a certain period of time (e.g. after 4 minutes) in which the lamp has been unsuccessfully attempted to ignite, the ignition time is set to 15s and the blocking time to 75s. Even if a high pressure sodium gas discharge lamp does not initially ignite and the switchover to the second ignition method for high pressure metal gas discharge lamps should take place, this changeover is not harmful since the high pressure sodium gas discharge lamp is then still operated in accordance with regulations.
- FIG. 1 b2) shows the method according to the invention for igniting a high-pressure gas discharge lamp in the event that a defective lamp is present or a lamp is missing. It is provided in accordance with the invention that the ignition circuit switches off automatically after a preset total ignition time has elapsed, with - as already described with reference to FIG. 1 a3) - alternately between ignition operation in which ignition pulses are applied to the lamp, and a stand-by mode in which the ignition mode is interrupted is switched over. As shown in Fig. 1 b2), the ignition circuit switches off automatically after a clocked ignition operation of 22 minutes. This means that a maximum of 22 minutes are available for each lamp start.
- the ignition of a lamp is monitored with the aid of a lamp ignition detection which is preferably integrated in the timer circuit.
- Fig. 2 shows an example of the internal structure of the timer circuit according to the invention, which, as shown in Fig. 4, is installed in a known manner in the ignition circuit.
- the timer circuit 10 has a control unit 15, which is preferably designed as an integrated circuit, in particular as an ASIC or PAL component.
- the control unit 15 is supplied with supply voltage via a supply capacitor 21 and a zener diode 22 as well as an input series resistor 19 and a rectifier circuit 16.
- a series resistor 18 and a further zener diode 17 are connected to the input a of the control unit 15, the control unit 15 monitoring the ignition of the high-pressure gas discharge lamp controlled by the timer circuit via the zener diode 17.
- the output b of the control unit 15 controls a transistor 23 connected in series with a further resistor 20, the resistor 20 being connected in parallel with the surge capacitor 7 of the ignition circuit shown in FIG.
- control unit 15 of the timer circuit 10 shown in FIG. 2 is described in more detail below with reference to FIG. 3.
- the control unit 15 comprises a lamp ignition detector 24, which detects successful ignition or burning of the controlled high-pressure gas discharge lamp via the input a of the control unit 15.
- the lamp ignition detection 24 generates a clock signal for a long-term counter 28, which detects the elapsed ignition time and compares it with an arbitrarily predetermined total ignition time, as well as a status signal which characterizes the lamp status and which is output to a delay circuit 26. If the lamp ignition detection 24 detects that the driven lamp is on, the clock signal is immediately switched off and a corresponding signal is sent to the delay circuit 26, which temporarily stores the signal, until it is ensured that the lamp has burned up properly.
- the delay circuit 26 outputs a corresponding pulse to a binary counter 27 which detects the number of times the lamp has been triggered.
- the binary counter 27 After notification of the lamp ignition to the binary counter 27, the latter outputs a reset signal to the long-term counter 28, as a result of which the latter is reset to zero.
- the preset total ignition time is therefore available again for the next lamp start. There is therefore always enough time available for any high-pressure gas discharge lamp to ignite the lamp.
- the long-term counter 28 detects the elapsed ignition time and, after the preset total ignition time has elapsed, for example 22 minutes, outputs a high signal to an OR logic 30.
- the binary counter 27 outputs a high signal to the OR logic 30 when the binary counter 27 has detected an arbitrarily preset number of lamp ignitions, for example three. In this way, a constant flashing is avoided, since the output signal of the binary counter 27 also occurs at the output of the OR logic 30, which turns the transistor 23 shown in FIG. 2 on, so that the ignition operation of the ignition circuit is terminated.
- the OR logic 30 is also controlled by an internal timer 29 which emits a high signal to the OR logic during the standby mode shown in FIG. 1 a3).
- the timer 29 applies a low signal to the OR logic 30.
- the internal timer 29 of the timer circuit 10 is, for example, from clocked an internal oscillator and is in particular independent of the mains frequency of the supply voltage of the ignition circuit.
- the control signal for controllable switch 23 shown in FIG. 2 occurs in the form of the output signal of OR logic 30. If this output signal is logic H, the transistor 23 is turned on, whereby the ignition operation of the ignition circuit is interrupted or switched off.
- the output signal of the OR logic 30 then - as can be seen in FIG. 3 - then assumes the high level when either the predetermined number of ignitions, monitored by the binary counter 27, has been exceeded when the total available Ignition time, monitored by the long-term counter 28, has been exceeded, or the ignition circuit is in stand-by mode, controlled by the internal timer 29.
- the timer circuit 10 and thus all devices of the control unit 15 are reset to the original state each time the ignition circuit is switched off.
- the ignition process is interrupted after a predefined time. Because of this targeted activation of the controllable switch 23, the high voltage load is more defined and, viewed over the entire time, lower than in the known ignition method.
- the function of the series choke 3 can therefore also be taken over by the pulse transformer 5. The choke 3 is therefore obsolete and the circuit structure is simplified.
- the state of the connected lamp can also be deduced from the ignition method according to the invention.
- An aged lamp is operated in accordance with the ignition curve shown in FIG. 1 a, while the ignition curve according to FIG. 1 b occurs in the case of a defective or missing lamp. It is thus advantageous to provide an additional output on the control circuit according to the invention shown in FIGS. 2 and 3, at which a signal is provided which reflects the operating state of the lamp.
- This signal can, for example, be fed to an optical display unit (for example a light-emitting diode) or an acoustic display unit (for example a loudspeaker).
- the light-emitting diode can be switched off, for example, when the lamp is on and switched on when the lamp is defective.
- the light-emitting diode can flash during the ignition of the igniter. It can also do that Signal can be fed via a digital or analog interface to a remote control device.
- the ignition device according to the invention can also be combined via an appropriate interface with ignition timing jumpers and power switches available on the market.
- Ignition time jumpers are used to control a normal incandescent lamp etc. during the period of time that the lamp takes to deliver the nominal luminous flux in order to ensure a sufficient level of basic lighting.
- Power switches ensure on the one hand that the ignition conforms to the regulations and, on the other hand, step-by-step lamp operation to save energy.
- the lamp manufacturers stipulate that before dimming a high-pressure lamp, it should be operated with 100% power consumption for 330s.
- ignition time jumpers or power switches can also be taken over by the ignition device according to the invention if the ASIC 15 is expanded accordingly in terms of circuitry.
- the ignitor can then be used as a power switch or ignition timing jumper depending on the output wiring.
- the settings of the total ignition time, the maximum permissible number of restartings and the length of the ignition mode or the standby mode of the timer circuit can be changed or programmed as desired, so that the use of different timer circuits for different applications is no longer required.
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- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ315657A NZ315657A (en) | 1995-08-28 | 1996-08-01 | Process and circuit for striking a high-pressure gas discharge lamp |
AT96927654T ATE208555T1 (de) | 1995-08-28 | 1996-08-01 | Verfahren und schaltungsanordnung zum zünden einer hochdruck-gasentladungslampe |
EP96927654A EP0847680B1 (de) | 1995-08-28 | 1996-08-01 | Verfahren und schaltungsanordnung zum zünden einer hochdruck-gasentladungslampe |
AU67410/96A AU698074B2 (en) | 1995-08-28 | 1996-08-01 | Method and circuitry arrangement for igniting a high pressure gas discharge lamp |
DE59608159T DE59608159D1 (de) | 1995-08-28 | 1996-08-01 | Verfahren und schaltungsanordnung zum zünden einer hochdruck-gasentladungslampe |
NO19980864A NO323465B1 (no) | 1995-08-28 | 1998-02-27 | Fremgangsmate og krets for tenning av en hoytrykksgassutladningslampe |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19531623.1 | 1995-08-28 | ||
DE19531623A DE19531623B4 (de) | 1995-08-28 | 1995-08-28 | Verfahren und Schaltungsanordnung zum Zünden einer Hochdruck-Gasentladungslampe |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997008920A1 true WO1997008920A1 (de) | 1997-03-06 |
Family
ID=7770589
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1996/003396 WO1997008920A1 (de) | 1995-08-28 | 1996-08-01 | Verfahren und schaltungsanordnung zum zünden einer hochdruck-gasentladungslampe |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0847680B1 (de) |
AT (1) | ATE208555T1 (de) |
AU (1) | AU698074B2 (de) |
DE (2) | DE19531623B4 (de) |
ES (1) | ES2167594T3 (de) |
NO (1) | NO323465B1 (de) |
NZ (1) | NZ315657A (de) |
TR (1) | TR199800236T1 (de) |
WO (1) | WO1997008920A1 (de) |
ZA (1) | ZA966977B (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001084890A1 (en) * | 2000-04-28 | 2001-11-08 | Koninklijke Philips Electronics N.V. | Ignition circuitry |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10330014A1 (de) | 2003-07-03 | 2005-02-03 | Elektrobau Oschatz Gmbh & Co. Kg | Universelles Zündgerät |
JP2005142130A (ja) * | 2003-11-10 | 2005-06-02 | Matsushita Electric Works Ltd | 高圧放電灯点灯装置及び照明器具 |
EP1694101A4 (de) * | 2003-12-12 | 2010-08-11 | Panasonic Elec Works Co Ltd | Einrichtung zum betrieb einer hochdruck-entladungslampe und beleuchtungsinstrument mit der einrichtung |
DE102004018345A1 (de) * | 2004-04-15 | 2005-11-03 | Tridonicatco Gmbh & Co. Kg | Schaltungsanordnung und Verfahren zum Zünden einer Gasentladungslampe mit zeitbegrenzter Startphase |
DE102006016827A1 (de) * | 2006-04-07 | 2007-10-11 | Bag Electronics Gmbh | Schaltungsanordnung für Hochdruck-Gasentladungslampen |
DE102006034372A1 (de) * | 2006-04-21 | 2007-10-25 | Tridonicatco Gmbh & Co. Kg | Überlagerungszündschaltung für Hochdruck-Entladungslampen |
WO2009019647A1 (en) * | 2007-08-07 | 2009-02-12 | Koninklijke Philips Electronics N.V. | Control of ignition of a gas discharge lamp |
CN101978790A (zh) * | 2008-03-19 | 2011-02-16 | 皇家飞利浦电子股份有限公司 | 用于高强度放电灯的灯寿终保护电路 |
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GB2203302A (en) * | 1987-04-06 | 1988-10-12 | Hubbell Inc | Start, hot restart and operating circuit for an HIO lamp |
US4853599A (en) * | 1988-02-11 | 1989-08-01 | Fl Industries, Inc. | Cycling limiting circuitry and method for electrical apparatus |
US4896077A (en) * | 1987-06-16 | 1990-01-23 | Cooper Industries, Inc. | Ignitor disabler |
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DE3108547A1 (de) * | 1981-03-06 | 1982-10-07 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München | "zuendschaltung fuer eine hochdruckmetalldampfentladungslampe" |
DE3108548C2 (de) * | 1981-03-06 | 1986-07-31 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München | Zündschaltung für eine Hochdruckmetalldampfentladungslampe |
DE3736542A1 (de) * | 1987-10-28 | 1989-05-11 | Zumtobel Ag | Zuendschaltung fuer eine hochdruckmetalldampfentladungslampe |
DE3903149A1 (de) * | 1989-02-02 | 1990-08-09 | Zumtobel Ag | Zuendschaltung fuer eine ueber eine drosselspule an der wechselspannungsquelle angeschlossene hochdruckmetalldampf-entladungslampe |
US5103137A (en) * | 1990-04-02 | 1992-04-07 | Multipoint Control Systems, Inc. | Anti-cycling device for high pressure sodium lamps |
-
1995
- 1995-08-28 DE DE19531623A patent/DE19531623B4/de not_active Expired - Lifetime
-
1996
- 1996-08-01 AT AT96927654T patent/ATE208555T1/de active
- 1996-08-01 DE DE59608159T patent/DE59608159D1/de not_active Expired - Lifetime
- 1996-08-01 ES ES96927654T patent/ES2167594T3/es not_active Expired - Lifetime
- 1996-08-01 WO PCT/EP1996/003396 patent/WO1997008920A1/de active IP Right Grant
- 1996-08-01 EP EP96927654A patent/EP0847680B1/de not_active Expired - Lifetime
- 1996-08-01 TR TR1998/00236T patent/TR199800236T1/xx unknown
- 1996-08-01 AU AU67410/96A patent/AU698074B2/en not_active Ceased
- 1996-08-01 NZ NZ315657A patent/NZ315657A/en not_active IP Right Cessation
- 1996-08-16 ZA ZA9606977A patent/ZA966977B/xx unknown
-
1998
- 1998-02-27 NO NO19980864A patent/NO323465B1/no not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2203302A (en) * | 1987-04-06 | 1988-10-12 | Hubbell Inc | Start, hot restart and operating circuit for an HIO lamp |
US4896077A (en) * | 1987-06-16 | 1990-01-23 | Cooper Industries, Inc. | Ignitor disabler |
US4853599A (en) * | 1988-02-11 | 1989-08-01 | Fl Industries, Inc. | Cycling limiting circuitry and method for electrical apparatus |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001084890A1 (en) * | 2000-04-28 | 2001-11-08 | Koninklijke Philips Electronics N.V. | Ignition circuitry |
Also Published As
Publication number | Publication date |
---|---|
DE19531623A1 (de) | 1997-03-06 |
EP0847680B1 (de) | 2001-11-07 |
TR199800236T1 (xx) | 1998-06-22 |
ATE208555T1 (de) | 2001-11-15 |
ES2167594T3 (es) | 2002-05-16 |
AU698074B2 (en) | 1998-10-22 |
NZ315657A (en) | 1998-11-25 |
EP0847680A1 (de) | 1998-06-17 |
NO323465B1 (no) | 2007-05-14 |
NO980864D0 (no) | 1998-02-27 |
NO980864L (no) | 1998-02-27 |
DE59608159D1 (de) | 2001-12-13 |
ZA966977B (en) | 1997-02-24 |
AU6741096A (en) | 1997-03-19 |
DE19531623B4 (de) | 2010-09-23 |
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