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WO1992002113A1 - Dispositif d'amorçage pour l'allumage d'une lampe a decharghe - Google Patents

Dispositif d'amorçage pour l'allumage d'une lampe a decharghe Download PDF

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Publication number
WO1992002113A1
WO1992002113A1 PCT/JP1991/000993 JP9100993W WO9202113A1 WO 1992002113 A1 WO1992002113 A1 WO 1992002113A1 JP 9100993 W JP9100993 W JP 9100993W WO 9202113 A1 WO9202113 A1 WO 9202113A1
Authority
WO
WIPO (PCT)
Prior art keywords
voltage
discharge
discharge lamp
supply
circuit
Prior art date
Application number
PCT/JP1991/000993
Other languages
English (en)
Japanese (ja)
Inventor
Koichi Ishida
Original Assignee
Takayama, Yukihiro
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
Priority claimed from JP7848990U external-priority patent/JPH0436762U/ja
Priority claimed from JP2198673A external-priority patent/JPH0487197A/ja
Priority claimed from JP33671390A external-priority patent/JPH04206392A/ja
Application filed by Takayama, Yukihiro filed Critical Takayama, Yukihiro
Publication of WO1992002113A1 publication Critical patent/WO1992002113A1/fr

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
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters
    • H05B41/288—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters with semiconductor devices and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
    • H05B41/2885—Static converters especially adapted therefor; Control thereof
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters
    • H05B41/288—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters with semiconductor devices and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
    • H05B41/2881—Load circuits; Control thereof
    • H05B41/2882—Load circuits; Control thereof the control resulting from an action on the static converter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

Definitions

  • the present invention relates to a starting device for a discharge lamp that initially discharges a high-pressure discharge lamp such as a mercury lamp, a high-pressure sodium lamp, and a metal halide lamp.
  • a high-pressure discharge lamp such as a mercury lamp, a high-pressure sodium lamp, and a metal halide lamp.
  • an electromagnetic start-up ballast such as an iron-core type winding or leakage transformer is used.
  • an AC voltage from a commercial AC power supply is rectified to a constant DC high voltage by a rectifier and supplied to a high-pressure discharge lamp to discharge the high-pressure discharge lamp.
  • the discharge starting voltage of the high-pressure discharge lamp is higher than the normal lighting sustaining voltage, and especially the difference between the sodium lamp and the like is large, in the above-mentioned electromagnetic ballast, it is necessary to change the reactance of the choke transformer of the circuit. In order to solve this problem, when a higher firing voltage was required, the ripple in the reactance of the circuit was used.
  • ballasts are accordingly large, heavy, and expensive, and the above-mentioned ballasts are optional for high-pressure discharge lamps.
  • One of the drawbacks was that it was unable to respond to dimming when it was necessary.
  • an electronic circuit is used instead of the electromagnetic ballast.
  • the electronic ballast requires a start-up lighting device that applies a start-up voltage to start discharge of a discharge lamp.
  • An object of the present invention is to provide a starting and lighting device for a discharge lamp that can easily obtain a discharge starting voltage higher than a normal lighting sustaining voltage.
  • Another object of the present invention is to provide a start-up lighting device for a discharge lamp capable of performing normal lighting with a steady discharge maintaining voltage when the discharge of the discharge lamp is started.
  • Still another object of the present invention is to provide a starting and lighting device for a discharge lamp that can remove the influence of electromagnetic waves radiated from the discharge lamp into the air.
  • a starting and lighting device for a discharge lamp includes a discharge lamp that is supplied from a power supply and starts and lights based on a rectified voltage, and that discharges the rectified voltage to the discharge lamp.
  • Discharge means for setting the high voltage to start the discharge of the discharge lamp and discharging the discharge lamp; and lighting means for reducing the voltage and lighting the discharge lamp after the discharge lamp discharges.
  • the present invention rectifies a power supply voltage supplied from a power supply, pressurizes the rectified voltage, supplies a starting voltage higher than a discharge starting voltage to a discharge lamp, and starts discharging. Then, the above voltage is reduced to maintain a steady discharge. It shifts to lighting. For this reason, it becomes possible to supply a starting voltage higher than the discharge starting voltage, and in the present invention, the discharge lamp can be rapidly discharged.
  • FIG. 1 shows an embodiment of the present invention
  • FIG. 1 is a circuit diagram showing an embodiment of a discharge lamp starting and lighting device according to the present invention
  • FIG. Fig. 3 shows the terminal voltage characteristics of the discharge lamp shown in Fig. 3
  • Fig. 3 shows the output waveform of the voltage applied to the discharge lamp at the start of discharge
  • Fig. 4 shows the relationship between the power supply voltage and the illuminance.
  • FIG. 5 is a diagram showing a relationship between power supply voltage and power consumption
  • FIG. 6 is a circuit diagram showing another embodiment of a starting and lighting device for a discharge lamp according to the present invention
  • FIG. 7 is a diagram in FIG. FIG.
  • FIG. 8 is a diagram showing the terminal voltage characteristics of the discharge lamp shown
  • FIG. 8 is a circuit diagram showing another embodiment of the discharge lamp starting and lighting device according to the present invention
  • FIG. 9 is a start-up of the discharge lamp according to this invention
  • FIG. 10 is a circuit diagram showing still another embodiment of the lighting device.
  • FIG. 10 is a configuration showing an embodiment in which the starting lighting device according to the present invention is converted to an inverter.
  • Fig. 11 is a block diagram of a discharge lamp provided with a transparent conductive film coating layer
  • Fig. 12 is a block diagram of a discharge lamp provided with a conductive net
  • Fig. 13 is a discharge lamp.
  • FIG. 4 is a diagram showing a configuration in a case where a transparent lid that is coated with a transparent conductive film or a conductive net is provided on the lamp.
  • a power supply voltage from a commercial AC power supply 10 is boosted by an auto transformer 11 and further rectified to a DC voltage by a rectifier 12.
  • the DC voltage rectified by the rectifier 12 is applied to the choke coil 14 via a switching transistor 13 as a discharge starting voltage.
  • an auto transformer is used, but the present invention is not limited to this, and an n-fold voltage rectifier may be used.
  • the coil 14 supplies the discharge lamp 15 such as a mercury lamp with a voltage obtained by superimposing a predetermined pulsating voltage on the discharge start voltage.
  • the discharge starting voltage is suppressed by the inductance characteristics of the coil 14 and gradually approaches the discharge sustaining voltage.
  • the discharge lamp 15 starts discharging as soon as a discharge starting voltage sufficient to start this discharge is supplied. For example, if the steady discharge current of the discharge lamp 15 in the state after the gas activation is 2.3 [A] and the terminal voltage at that time is 100 [V], the terminal voltage characteristics of the discharge lamp 15 are as follows. However, when starting the discharge, it is desirable to change as shown in FIG. Therefore, in this embodiment, the discharge is started by applying a voltage as shown by the output waveforms in FIGS. 3 (a) to 3 (d) to the discharge lamp 15. That is, FIG. 3 (a) shows the start of discharge, the output waveform is an intermittent mode, and 0.2 [A] flows as the discharge current. Fig.
  • FIG. 3 (b) shows one minute after the start of discharge, and the output waveform is in the intermittent mode. 0.89 [A] is flowing as the discharge current.
  • Fig. 3 (c) shows four minutes after the start of discharge, and 2.1 [A] flows as the discharge current.
  • Fig. 3 (d) shows 5 minutes after the start of the discharge, and the discharge current is 2.3 [A].
  • the resistor 16 is a resistor for detecting a discharge current through which a discharge current generated by the discharge of the discharge lamp 15 flows.
  • a voltage is generated at the + terminal of the operational amplifier 20.
  • the resistors 17 and 18 set the reference voltage for making the current flowing through the discharge lamp 15 into a steady discharge current (2.3 [A] in the embodiment) when the discharge lamp 15 is discharged. It is a voltage dividing resistor for setting.
  • the voltage dividing resistors 17 and 18 apply a reference voltage set based on the voltage from the power supply 19 to one terminal of the operational amplifier 20.
  • the operational amplifier 20 compares the voltage supplied to the tenth terminal and applies an output voltage that changes according to the comparison result to a pulse width control circuit (hereinafter, referred to as “PWM”) 21. .
  • PWM pulse width control circuit
  • the PWM 21 increases or decreases the pulse width of the output pulse according to the output voltage, and adds the increased or reduced pulse width voltage to the base of the transistor 13. ing.
  • the transistor 13 When the above voltage is applied, the transistor 13 is turned on according to the pulse width, and the discharge starting current from the rectifier 12 is turned on.
  • the voltage is applied to the coil 14 only during the time when the transistor 13 is on.
  • the operation of the start-up lighting device shown in Fig. 1 will be described.
  • the power supply voltage from the commercial power supply 10 is boosted to a voltage sufficient to start discharging in the autotransformer 11 and is applied to the collector of the transistor 13.
  • the pulse width of PWM 21 is the maximum pulse width because the discharge current has not yet flowed through resistor 16.
  • the transistor 13 is fully opened, and a sufficient starting voltage is applied to the discharge lamp 15 via the coil 14 to start discharging.
  • the discharge lamp 15 immediately starts discharging as shown in FIG.
  • a discharge current flows through the resistor 16 and a discharge voltage is generated at the + terminal of the operational amplifier 19.
  • the reference voltage divided by the voltage dividing resistors 17 and 18 is applied to one terminal of the operational amplifier 19.
  • the voltage at the output terminal of the operational amplifier 19 changes according to the reference voltage and the discharge voltage.
  • PWM 21 reduces the pulse width of the output pulse to be output. Accordingly, the on-time of the transistor 13 is controlled and acts in a voltage decreasing direction to lower the voltage applied to the discharge lamp 15 to a steady discharge maintaining voltage.
  • the current flowing through the discharge lamp 15 is maintained at a preset current value and shifts to a normal lighting state.
  • the gas in the discharge lamp 15 is activated and can be turned on.
  • the PWM 2 1 is to control the pulse width of the transistor 13 so that the discharge current flowing through the discharge lamp 15 becomes the set current (2.3 [A] in this embodiment), set the terminal voltage to 100 [V], Set the discharge current to 2.3 [A].
  • the discharge lamp 15 can continue stable discharge.
  • the conventional transformer-type ballast requires the discharge of a mercury lamp tube or the like as shown in Fig. 4.
  • the illuminance of the lamp 15 becomes unnecessarily bright, resulting in a significant increase in power consumption and a reduction in the life of expensive mercury lamps, as shown in FIG.
  • the electronic ballast is controlled by the pulse width control of the PWM 21 at startup. Apply the same discharge starting voltage as the sustaining voltage to the discharge lamp. Then, the electronic ballast can be added to the discharge lamp by gradually increasing the voltage so as to have a constant discharge maintaining voltage after the start of the discharge.
  • continuous modulation light can be adjusted by adjusting the discharge current of the starting lighting device. Becomes possible.
  • FIG. 6 is a circuit diagram showing another embodiment of the discharge lamp starting and lighting device according to the present invention, in which a discharge lamp having a high starting voltage such as a sodium lamp is started and lit.
  • a discharge lamp having a high starting voltage such as a sodium lamp is started and lit.
  • the same components as those in FIG. 1 described above have the same reference numerals, and are omitted for convenience of description.
  • the steady-state current of the discharge lamp 15 after gas activation is 2.3 [A]
  • the terminal voltage at that time is 100 [V]
  • the discharge lamp 15 has a Assuming that a current of about 6 [A] flows, it is desirable that the terminal voltage characteristics of the discharge lamp 15 be changed as shown in FIG. 7 when starting discharge.
  • a high voltage transformer 22 is connected between the coil 14 and the discharge lamp 15, and the secondary coil of the high voltage transformer 22 has diodes 23, 24. Force connected.
  • the diode 23 superimposes only the positive voltage of the AC high voltage from the high-voltage transformer 22 on the voltage from the power supply 10 and applies it to the discharge lamp 15 as a high voltage for starting discharge.
  • the current flowing through 15 is set to 6 [A].
  • the diode 24 is a diode for preventing high-voltage backflow to the high-voltage transformer 22.
  • the resistors 26 and 27 are voltage-dividing resistors for setting a reference voltage based on the voltage of the power supply 19, and apply the set reference voltage to the-terminal of the operational amplifier 25.
  • the operational amplifier 25 compares the voltage supplied to the above (10) and ( ⁇ ) terminals, and outputs the output voltage that changes according to the comparison result to the PWM
  • the PWM 28 increases or decreases the pulse width of the pulse according to the output voltage when the output voltage from the operational amplifier 25 is applied, and applies the voltage of the increased or decreased pulse width to the primary side of the high-voltage transformer 22 . That is, when the discharge current flows through the resistor 16, the operational amplifier 25 detects the discharge. P WM
  • the starting lighting device of this embodiment when starting the discharge lamp, a high voltage can be superimposed on the discharge maintaining voltage and applied to the discharge lamp, so that even when the potential difference between the discharge maintaining voltage and the starting voltage is large, The discharge lamp can be started and stable discharge can be performed.
  • the starting lighting device of this embodiment is used as an electronic ballast, the power supply voltage of the commercial power supply fluctuates.
  • the electronic ballast applies a discharge starting voltage higher than the lighting sustain voltage to the discharge lamp at start-up by controlling the pulse width of the PWM 21 and 28, and by controlling the pulse width of the PWM 21 after the discharge starts.
  • a constant discharge sustaining voltage can be applied to the discharge lamp.
  • the high-voltage starting voltage required at startup is generated by superimposing the high voltage generated by the high-voltage transformer 22 on the voltage from the power supply 10, and the voltage from the power supply 10 is Is small, and gradually increases to allow steady state.
  • the capacity of the transformer 11 can be reduced, and more discharge lamps can be connected to one transformer than in the prior art, so that the economic efficiency can be improved.
  • the output of the high voltage is stopped by detecting the discharge.
  • the means is, for example, to connect a timer 29 to the PWM 28, detect a certain time after the power supply 10 is turned on, and output the detection signal to the PWM 28. Then, when the above detection signal is input, the PWM 28 becomes high after the predetermined time even if the discharge of the discharge lamp 15 is not detected by the operational amplifier 25. This stops the output of the voltage. This makes it possible to reduce the size of the pressurizing means for pressurizing the high voltage.
  • the PWM 28 applies a high voltage to the high-voltage transformer 22 for a long time, causing noise from the discharge lamp 15. Occurs. Therefore, as in this embodiment, if the output of the high voltage by the PWM 28 is stopped after a certain time counted by the timer 29, the generation of noise can be prevented.
  • FIG. 8 is a circuit diagram showing another embodiment in which the starting lighting device of FIG. 7 is improved.
  • the high-voltage transformer 36 has the functions of the choke coil 14 and the high-voltage transformer 22 shown in FIG. That is, the high-voltage transformer 36 generates a high voltage at the time of startup, and performs the function of the high-voltage transformer 22 that generates a high-voltage startup voltage by superimposing the high voltage on the voltage from the power supply 10.
  • the operational amplifier 25 detects discharge, and the PWM 28 stops high-voltage output according to the detection result of the operational amplifier 25, so that the secondary coil of the high-voltage transformer 36 has a choke coil 1 Performs the function of 4 to bring the voltage from the power supply 10 into a steady state where discharge can be maintained.
  • the timer 29 is connected to the PWM 21 together with the PWM 28, and the timer 29 detects a certain time after the power supply 10 is turned on, and detects the time. It is configured to output the detection signals of the above to the PWM 21 and 28.
  • the PWM 21 stops the output of the voltage after the above-mentioned fixed time even if the operational amplifier 25 does not detect the discharge of the discharge lamp 15. Further, the PWM 28 stops the output of the voltage after the predetermined time only when the detection signal is input and the operational amplifier 25 does not detect the discharge of the discharge lamp 15. As a result, even if the discharge lamp is defective and the operational amplifier 25 cannot detect the discharge of the discharge lamp 15, a voltage is applied to the PWM 21 and 28 power transistors 13 and the high-voltage transformer 22 for a long time. Pressure, and noise generated from the discharge lamp 15 can be prevented.
  • FIG. 9 is a circuit diagram showing still another embodiment of the start-up lighting device for a discharge lamp according to the present invention, in which a start-up lighting device for a rapid start in which the current at the time of startup is increased to a rated current at a high speed. Is the case.
  • the same components as those in FIG. 1 described above have the same reference numerals, and are omitted for convenience of explanation.
  • the resistor 16 is similar to FIG. A resistor for detecting a discharge current through which a discharge current generated by the discharge of the discharge lamp 15 flows.
  • a voltage is generated at the + terminal of the operational amplifier 20.
  • the resistors 31, 32, and 33 are used to set the current flowing through the discharge lamp 15 at the time of discharge of the discharge lamp 15 to a steady discharge current (in the embodiment,
  • a voltage dividing resistor for setting a reference voltage for setting the reference voltage based on the voltage from the power supply 19 is applied to the-terminal of the operational amplifier 20.
  • the contact 32 of the relay circuit 35 is connected to the resistor 32 in parallel.
  • the contact 34 is normally in the ON state, and is turned to the ON state by the excitation of the relay circuit 35.
  • the operational amplifier 20 compares the voltages supplied to the terminals (10) and ( ⁇ ), and applies an output voltage that changes according to the comparison result to a pulse width control circuit (hereinafter referred to as “PWM”) 21.
  • PWM pulse width control circuit
  • the PWM 21 increases or decreases the pulse width of the output pulse according to the output voltage, and the voltage of the increased or decreased pulse width is applied to the transistor.
  • Resistors 36 and 37 are discharge lamps
  • the reference numeral 37 applies a reference voltage set based on the voltage from the power supply 19 to one terminal of the operational amplifier 30.
  • the operational amplifier 30 compares the voltages supplied to the + and one terminals, and applies an output voltage that changes according to the comparison result to the relay circuit 35.
  • the reference voltage supplied to one terminal of the operational amplifier 20 is set to a high voltage at the time of startup in order to make the current flowing through the discharge lamp 15 a steady discharge current (2.3 [A] in the embodiment).
  • the reference voltage is set to a voltage lower than the voltage at the time of startup in order to maintain the steady discharge current.
  • the PWM 21 increases or decreases the pulse width in accordance with the output voltage, and applies a voltage having the increased or decreased pulse width to the coil 14. That is, before the discharge current flows through resistor 16, the operational amplifier
  • the PWM 21 outputs a high voltage according to the detection result output from the output terminal of the operational amplifier 20, and discharges the discharge lamp 15 in a short time. Then, the discharge current flows through resistor 16 and the operational amplifier
  • the relay circuit 35 When 30 detects the discharge, the relay circuit 35 responds to the detection result output from the output terminal of the operational amplifier 30. Energize and turn off contacts 34. As a result, the operational amplifier 20 is set to a reference voltage lower than the voltage at the time of startup, and the PWM 21 maintains discharge by pulse width control according to the detection result output from the output terminal of the operational amplifier 20. Output the required voltage.
  • the PWM 21 pulse width control By the PWM 21 pulse width control, the discharge lamp 15 discharges in a shorter time of about 2 minutes than the start-up lighting device in Fig. 1, and after the discharge, the discharge can be continued by the discharge maintenance voltage. it can.
  • FIG. 10 is a block diagram showing an embodiment in which the start-up lighting device is integrated into an inverter.
  • the start-up lighting device includes a commercial AC power supply 41, a rectifier 42, a first inverter circuit 45, and a second inverter-type inverter circuit 4 for converting DC to AC. 6 and a high-pressure discharge lamp 47 as a load.
  • a constant current regulator 43 and a constant voltage regulator 44 are connected to the first inverter circuit 45, and the second inverter circuit is controlled by a DC current value and a voltage value preset by the regulator.
  • 46 is driven by AC and the high-pressure discharge lamp 47 is turned on.
  • the voltage applied to the discharge lamp 47 is suppressed by the inductance characteristics of the first inverter circuit 45, whereby the discharge lamp 47 is gradually turned on.
  • the load used in the present invention is a discharge lamp.
  • the discharge lamp when the start-up lighting device is configured by an inverter circuit, the discharge lamp emits electromagnetic waves into the air by acting as an antenna. If a large amount of this electromagnetic wave is radiated, the electromagnetic wave may adversely affect the operation of other devices and FA devices as noise. Therefore, as shown in (a) and (b) of FIGS. 11 and 12, all or part of the outer surface of the discharge lamps 50 and 51 is provided with a transparent conductive material that does not hinder the passage of light.
  • the coating layers 52, 53 of the membrane or the conductive nets 56, 57 are provided, and the grounding wires 54, 5 are provided on the coating layers 52, 53, the conductive nets 56, 57. It is also possible to connect 5, 58, 59.
  • the above-mentioned coating layer is formed by depositing or plating an extremely thin (0.5 or less) conductive material such as a metal. Further, a conductive paint may be applied.
  • the discharge lamps 50 and 51 are usually housed in metal lighting fixtures 60 and 61 as shown in FIGS. 13 (a) and (b). Therefore, transparent lids 62, 63 coated with a conductive net or a transparent conductive film are attached so as to cover the openings of the lighting equipment 60, 61, and the lighting equipment is further grounded. Connect the conductors 64, 65, and ground the lighting equipment, net, and lid at the same potential, and perform electromagnetic isolation. It is also possible to shield noise well

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  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

Le dispositif décrit comprend un organe à décharge, telle qu'une lampe à décharge (15), destiné à être amorcé et allumé au moyen d'une tension appliquée depuis une source d'alimentation (10) par l'intermédiaire d'un redresseur (12), un amplificateur opérationnel (20) et un circuit de commande de largeur d'impulsion (21) qui coopèrent pour augmenter ou abaisser par paliers la tension redressée, de façon à générer une tension suffisamment élevée pour amorcer la lampe à décharge, ainsi qu'une bobine d'arrêt (14) qui, par superposition, vient ajouter à la tension d'alimentation une tension pulsatoire prédéterminée spécifée par les caractéristiques d'inductance. Un organe de mise sous tension contenant une résistance (16) est en outre utilisé pour détecter le courant de décharge électrique de la lampe à décharge (15) et l'abaissement par paliers de la tension d'alimentation obtenu par la coopération entre l'amplificateur opérationnel (20) et le circuit de commande de largeur d'impulsion (21) s'effectue après que la décharge de la lampe à décharge (15) a démarré.
PCT/JP1991/000993 1990-07-24 1991-07-24 Dispositif d'amorçage pour l'allumage d'une lampe a decharghe WO1992002113A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP7848990U JPH0436762U (fr) 1990-07-24 1990-07-24
JP2/78489U 1990-07-24
JP2198673A JPH0487197A (ja) 1990-07-26 1990-07-26 高圧放電ランプ用点灯回路
JP2/198673 1990-07-26
JP33671390A JPH04206392A (ja) 1990-11-30 1990-11-30 放電灯の起動点灯回路
JP2/336713 1990-11-30

Publications (1)

Publication Number Publication Date
WO1992002113A1 true WO1992002113A1 (fr) 1992-02-06

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PCT/JP1991/000993 WO1992002113A1 (fr) 1990-07-24 1991-07-24 Dispositif d'amorçage pour l'allumage d'une lampe a decharghe

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AU (1) AU8227591A (fr)
WO (1) WO1992002113A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996022604A1 (fr) * 1995-01-16 1996-07-25 Astacarotene Ab Systeme d'ecran contre les champs electriques et/ou magnetiques provenant d'une source de lumiere, notamment d'un tube fluorescent
CN102291913A (zh) * 2011-07-18 2011-12-21 黄山市高立亚照明电器有限责任公司 一种荧光灯启辉器消气技术

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4810861B1 (fr) * 1968-12-28 1973-04-07
JPS4811634B1 (fr) * 1969-09-24 1973-04-14
JPS567384A (en) * 1979-06-30 1981-01-26 Matsushita Electric Works Ltd Device for firing discharge lamp
JPS58115746A (ja) * 1981-12-28 1983-07-09 Ricoh Co Ltd 「けい」光灯のラジオノイズ防止装置
JPS58198850A (ja) * 1982-05-17 1983-11-18 Stanley Electric Co Ltd メツシユヒ−タを用いた光源体

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4810861B1 (fr) * 1968-12-28 1973-04-07
JPS4811634B1 (fr) * 1969-09-24 1973-04-14
JPS567384A (en) * 1979-06-30 1981-01-26 Matsushita Electric Works Ltd Device for firing discharge lamp
JPS58115746A (ja) * 1981-12-28 1983-07-09 Ricoh Co Ltd 「けい」光灯のラジオノイズ防止装置
JPS58198850A (ja) * 1982-05-17 1983-11-18 Stanley Electric Co Ltd メツシユヒ−タを用いた光源体

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996022604A1 (fr) * 1995-01-16 1996-07-25 Astacarotene Ab Systeme d'ecran contre les champs electriques et/ou magnetiques provenant d'une source de lumiere, notamment d'un tube fluorescent
CN102291913A (zh) * 2011-07-18 2011-12-21 黄山市高立亚照明电器有限责任公司 一种荧光灯启辉器消气技术

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Publication number Publication date
AU8227591A (en) 1992-02-18

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