EP0208370A1 - Dispositif de circuit pour le fonctionnement de lampes de décharge à gaz à haute pression - Google Patents

Dispositif de circuit pour le fonctionnement de lampes de décharge à gaz à haute pression Download PDF

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Publication number
EP0208370A1
EP0208370A1 EP86201134A EP86201134A EP0208370A1 EP 0208370 A1 EP0208370 A1 EP 0208370A1 EP 86201134 A EP86201134 A EP 86201134A EP 86201134 A EP86201134 A EP 86201134A EP 0208370 A1 EP0208370 A1 EP 0208370A1
Authority
EP
European Patent Office
Prior art keywords
voltage
lamp
circuit arrangement
frequency
storage capacitor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP86201134A
Other languages
German (de)
English (en)
Other versions
EP0208370B1 (fr
Inventor
Manfred Dr. Albach
Ralf Dr. Schäfer
Hans-Peter Dr. Stormberg
Armin Wegener
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.)
Philips Intellectual Property and Standards GmbH
Koninklijke Philips NV
Original Assignee
Philips Patentverwaltung GmbH
Philips Gloeilampenfabrieken NV
Koninklijke Philips Electronics NV
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 Philips Patentverwaltung GmbH, Philips Gloeilampenfabrieken NV, Koninklijke Philips Electronics NV filed Critical Philips Patentverwaltung GmbH
Publication of EP0208370A1 publication Critical patent/EP0208370A1/fr
Application granted granted Critical
Publication of EP0208370B1 publication Critical patent/EP0208370B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S315/00—Electric lamp and discharge devices: systems
    • Y10S315/07—Starting and control circuits for gas discharge lamp using transistors

Definitions

  • the invention relates to a circuit arrangement for operating at least one high-pressure gas discharge lamp with a higher-frequency current, provided with a full-wave rectifier to be connected to an AC voltage source, with output DC voltage terminals, which are connected to a first switching power supply for supplying the lamp, which comprises a switching transistor, a choke coil, a freewheeling diode and a storage capacitor are.
  • the pulse duty factor and / or the switching frequency of the switching transistor is controlled by a control device such that the current load on the AC voltage source is as sinusoidal as possible.
  • High-frequency current here means a current of periodically changing size with frequencies between 1 kHz and 500 kHz, preferably between 20 kHz and 150 kHz.
  • Such a circuit arrangement with, for example, a flyback converter in the form of a step-up voltage converter as the first switching power supply is known from EP-OS 00 59 053.
  • a forward converter for example, can also be used as the first switching power supply.
  • the various transducers have the advantageous property that they bring about an essentially sinusoidal load on the AC voltage source.
  • Storage capacitors with a relatively high capacitance are usually used, for example 220 pF / 400 V at 130 W power consumption of the lamp. In order to ensure a minimum service life of the storage capacitors, a relatively large number of electrolytic capacitors is required. Otherwise the capacitors would turn off due to the high frequency current Warm impulses too much. It would therefore be desirable to use film capacitors for the storage capacitor.
  • the invention is therefore based on the object of providing a circuit arrangement for operating high-pressure gas discharge lamps which, on the one hand, causes the source load to be as sinusoidal as possible with low self-losses and in which the storage capacitor is as small as possible with little voltage fluctuation on this storage capacitor.
  • a second switching power supply with at least one electronic switching element is arranged between the storage capacitor and the lamp and can be controlled by a control device which generates an actual value signal proportional to the instantaneous higher-frequency lamp current with a setpoint signal compares, which consists of a sinusoidal voltage with double AC voltage source frequency and a DC component with a size of at least the maximum amplitude of the sine wave.
  • Such a circuit arrangement generates a lamp current to which a high-frequency component dependent on the switching frequency of the electronic switching element is modulated, the frequency of which is usually between 1 and 500 kHz, preferably between 20 and 150 kHz.
  • the lamp current pulsates in time with twice the source frequency, to which a DC component is added.
  • the required setpoint signal part sin 2 ⁇ t is preferably generated from the voltage sin ⁇ t present behind the full-wave rectifier, the Fourier development of which contains the function cos2 ⁇ t as the 1st harmonic. According to the formula sin 2 ⁇ t (1 - cos2 ⁇ t), the square of the sine can be generated from it by superposition with a constant component.
  • a switching power supply is not only to be understood as a flyback or forward converter, but also a push-pull converter, e.g. a half-bridge or a bridge push-pull converter.
  • an optocoupler is connected to the full-wave rectifier and generates the setpoint signal from the rectified source voltage via an RC combination.
  • the second switching power supply is a forward converter, the setpoint signal being able to be generated from the voltage drop on the electronic switching element via an RC combination.
  • a and B are input terminals for connection to a network serving as an AC voltage source, e.g. Designated 220 V, 50 Hz.
  • a full-wave rectifier 2 with four diodes is connected to these input terminals A and B via a high-frequency filter 1.
  • the output DC voltage terminals of the full-wave rectifier 2 are followed by a flyback converter (step-up voltage converter) consisting of a switching transistor 3, a choke coil 4, a freewheeling diode 5 and a storage capacitor 6 as the first switching power supply.
  • a flyback converter step-up voltage converter
  • the storage capacitor 6 which has a relatively small capacitance of e.g. 1.5 pF, there is a maximum DC voltage of 400 V.
  • a forward converter (step-down voltage converter) is connected as a second switching power supply, which contains an electrical switching element 7 in the form of a second switching transistor, a choke coil 8 and a free-wheeling diode 10.
  • a connected lamp 9 is shown in the step-down voltage converter.
  • a measuring resistor 11 serving as a current sensor is also inserted into the lamp circuit, from which an actual value signal proportional to the instantaneous lamp current is tapped, which signal is sent to input C of a control device 12.
  • the lamp current I is tracked by the control device 12 in the manner described below to a desired value signal derived from the rectified mains voltage applied to the input D of the control device 12.
  • a control device 13 for controlling the duty cycle and / or the switching frequency of the switching transistor 3 works in such a way that the current drawn from the AC voltage network is as sinusoidal as possible.
  • Such control devices are known per se, e.g. from DE-OS 26 52 275.
  • the control device 12 has the task of keeping the voltage fluctuation at the storage capacitor 6 as low as possible.
  • An embodiment of such a storage device 12 will now be described with reference to FIG. 2.
  • An RC combination consisting of a variable resistor 18 and a capacitor 19, serves the phase of the setpoint signal, which is ultimately applied to the inputs of the comparators 20 and 21, with the phase of the mains voltage.
  • a capacitor 22 is used to block the DC component, which can be set as desired using a variable resistor 23.
  • This makes it possible to supply a setpoint signal U soll a sin 2 ⁇ t + b to the inputs of the comparators 20 and 21 (FIG. 5).
  • the constant b can of course also become zero.
  • the setpoint signal U soll is a sinusoidal signal with twice the mains frequency and a DC component with a size of at least the maximum amplitude a / 2 of the sine wave.
  • the direct component is indicated in FIG. 5 by the dashed line xx.
  • An upper limit level can be set on the comparator 20 via a variable resistor 24.
  • a lower limit level can be set on the comparator 21 via resistors 25 and 26.
  • Capacitors 33 and 34 serve to suppress high-frequency interference signals.
  • the actual value signal which is proportional to the lamp current and drops across the measuring resistor 11 is divided down via a capacitor 27 and a potentiometer 28 and fed to the comparators 20 and 21.
  • the output signals of the comparators 20 and 21 are fed to the reset input R and the set input S of a bistable multivibrator 29.
  • the signal at the output F of the bistable multivibrator 29 now switches the transistor 7 conductive or non-conductive.
  • the system can generate 12 V itself and is supplied to the electronics and to the outputs of the comparators 20 and 21 via resistors 30 and 31.
  • the control device 12 then works such that when the upper setpoint level U ° is reached, the switching transistor 7 is switched to be non-conductive; when the lower setpoint level U u soll is reached, the transistor 7 is switched on again (FIG. 6).
  • the switching frequency of the switching transistor 7 changes during the 100 Hz periods, but is preferably between 20 and 150 kHz, depending on the size of the choke coil 8.
  • FIG. 6 shows the profile of the lamp current I, which essentially corresponds to the profile of the setpoint signal according to FIG 5 corresponds, superimposed by the switching frequency of the switching transistor 7.
  • the control device 12 according to FIG. 3 essentially corresponds to the device according to FIG. 2. Instead of the optocoupler, however, the setpoint signal is generated from the voltage drop at the switching transistor 7 by tapping a voltage across the switching transistor 7 and the measuring resistor 11 and this via a Resistor 32 is supplied to variable resistor 16.

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
EP86201134A 1985-07-06 1986-06-27 Dispositif de circuit pour le fonctionnement de lampes de décharge à gaz à haute pression Expired - Lifetime EP0208370B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3524266 1985-07-06
DE19853524266 DE3524266A1 (de) 1985-07-06 1985-07-06 Schaltungsanordnung zum betrieb von hochdruckgasentladungslampen

Publications (2)

Publication Number Publication Date
EP0208370A1 true EP0208370A1 (fr) 1987-01-14
EP0208370B1 EP0208370B1 (fr) 1990-03-07

Family

ID=6275167

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86201134A Expired - Lifetime EP0208370B1 (fr) 1985-07-06 1986-06-27 Dispositif de circuit pour le fonctionnement de lampes de décharge à gaz à haute pression

Country Status (5)

Country Link
US (1) US4812736A (fr)
EP (1) EP0208370B1 (fr)
JP (1) JP2554057B2 (fr)
CA (1) CA1294665C (fr)
DE (2) DE3524266A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989007877A1 (fr) * 1988-02-19 1989-08-24 Kaj Jensen Circuit d'excitation et d'actionnement d'une lampe a luminescence
GB2271479A (en) * 1992-10-07 1994-04-13 Transmicro Limited Dimmable H.F. flourescent lamp driver with regulated output
EP0746809A1 (fr) * 1993-11-08 1996-12-11 Energy Savings, Inc. Ballast electronique a faible distorsion harmonique

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0732441Y2 (ja) * 1987-07-31 1995-07-26 大日本印刷株式会社 開封装置を有する容器の注出口
JPH063816Y2 (ja) * 1987-09-16 1994-02-02 凸版印刷株式会社 液体容器用注出栓
NL8800015A (nl) * 1988-01-06 1989-08-01 Philips Nv Elektrische inrichting voor het ontsteken en voeden van een gasontladingslamp.
JPH01137861U (fr) * 1988-03-16 1989-09-20
US4982314A (en) * 1988-12-09 1991-01-01 Nichia Kagaku Kogyo K.K. Power source circuit apparatus for electro-luminescence device
US5012161A (en) * 1989-01-05 1991-04-30 General Electric Company Power factor correction circuit
FR2656705B1 (fr) * 1989-12-28 1992-04-17 Telemecanique Detecteur du type deux fils a tension regulee.
FR2670958B1 (fr) * 1990-12-21 1994-01-07 Telemecanique Circuit de protection contre les court-circuits pour un interrupteur electronique.
US5815364A (en) * 1991-10-18 1998-09-29 Eaton Corporation Ultrasonic coil current regulator
US5251157A (en) * 1990-12-28 1993-10-05 Westinghouse Electric Corp. Process for offset adjustment of a microprocessor based overcurrent protective device and apparatus
US5525985A (en) * 1990-12-28 1996-06-11 Eaton Corporation Sure chip
US5418677A (en) * 1990-12-28 1995-05-23 Eaton Corporation Thermal modeling of overcurrent trip during power loss
ZA919656B (en) * 1990-12-28 1992-09-30 Westinghouse Electric Corp Voltage controlled power supply
US5270898A (en) * 1990-12-28 1993-12-14 Westinghouse Electric Corp. Sure chip plus
DE4104274C2 (de) * 1991-02-13 1993-10-07 Eurosil Electronic Gmbh Verfahren zur Regelung der Versorgungsspannung für eine Last
EP0507393A3 (fr) * 1991-04-04 1992-11-19 Koninklijke Philips Electronics N.V. Agencement de circuit
WO1993002407A1 (fr) * 1991-07-17 1993-02-04 Halcro Nominees Pty Ltd Regulateur alimentation en courant ameliore
US5369340A (en) * 1992-10-29 1994-11-29 North American Philips Corporation Driving scheme for a high intensity discharge ballast down converter
US5602463A (en) * 1995-12-11 1997-02-11 Lockheed Martin Corporation DC power supply with enhanced input power factor using a buck and boost converter
JP3607428B2 (ja) * 1996-08-08 2005-01-05 松下電器産業株式会社 蛍光ランプ点灯装置
DE19715259A1 (de) * 1997-04-12 1998-10-22 Vossloh Schwabe Gmbh Speisespannungserzeugung an einem Wandler
EP0929994B1 (fr) * 1997-08-01 2003-07-02 Koninklijke Philips Electronics N.V. Dispositif de circuit
JP3678075B2 (ja) * 1998-12-09 2005-08-03 セイコーエプソン株式会社 電源装置およびその制御方法、携帯型電子機器、計時装置およびその制御方法
TW512376B (en) * 2000-08-17 2002-12-01 Koninkl Philips Electronics Nv Switching device
JP5286717B2 (ja) * 2007-09-04 2013-09-11 株式会社リコー 昇圧型ｄｃ／ｄｃコンバータ
JP2011222413A (ja) * 2010-04-13 2011-11-04 Nippon Telegr & Teleph Corp <Ntt> 遮断装置
DE102013216878A1 (de) * 2013-08-23 2015-02-26 Osram Gmbh Zweistufiger getakteter elektronischer Energiewandler

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2318444A1 (de) * 1972-04-20 1973-10-31 Philips Nv Anordnung zur regelbaren speisung einer elektrischen lampe
DE2461449A1 (de) * 1974-01-02 1975-07-10 Gen Electric Zerhacker-vorschaltanordnung fuer gasentladungslampen
DE2652275A1 (de) * 1976-11-17 1978-05-18 Boehringer Andreas Einrichtung ohne prinzipbedingte verluste zur entnahme von praktisch rein sinusfoermigem, netzfrequentem strom aus wechsel- oder drehspannungsnetzen und zur ueberfuehrung der entnommenen elektrischen energie in galvanisch verbundene gleichspannungssysteme oder gleichspannungszwischensysteme
DE2918314A1 (de) * 1978-05-08 1979-12-13 Carlile R Stevens Netzgeraet fuer eine hochstrom-entladungslampe oder leuchtstoffroehre
US4346332A (en) * 1980-08-14 1982-08-24 General Electric Company Frequency shift inverter for variable power control
EP0059053A2 (fr) * 1981-02-21 1982-09-01 THORN EMI plc Alimentation de courant à impulsions
EP0126556A1 (fr) * 1983-05-05 1984-11-28 Dubank Electronics (Pty) Limited Procédé pour mettre en oeuvre et démarrer une lampe à décharge, alimentation de puissance et ballast électronique y afférent

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU452816A1 (ru) * 1973-02-12 1974-12-05 Московский авиационный институт им.С.Орджоникидзе Импульсный стабилизатор напр жени
US4042856A (en) * 1975-10-28 1977-08-16 General Electric Company Chopper ballast for gaseous discharge lamps with auxiliary capacitor energy storage
SU985774A1 (ru) * 1980-07-22 1982-12-30 Предприятие П/Я А-3361 Стабилизированный выпр митель
US4481460A (en) * 1982-02-08 1984-11-06 Siemens Aktiengesellschaft Inverter with charging regulator having a variable keying ratio
US4459537A (en) * 1982-11-22 1984-07-10 General Motors Corporation Up-down voltage regulator

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2318444A1 (de) * 1972-04-20 1973-10-31 Philips Nv Anordnung zur regelbaren speisung einer elektrischen lampe
DE2461449A1 (de) * 1974-01-02 1975-07-10 Gen Electric Zerhacker-vorschaltanordnung fuer gasentladungslampen
DE2652275A1 (de) * 1976-11-17 1978-05-18 Boehringer Andreas Einrichtung ohne prinzipbedingte verluste zur entnahme von praktisch rein sinusfoermigem, netzfrequentem strom aus wechsel- oder drehspannungsnetzen und zur ueberfuehrung der entnommenen elektrischen energie in galvanisch verbundene gleichspannungssysteme oder gleichspannungszwischensysteme
DE2918314A1 (de) * 1978-05-08 1979-12-13 Carlile R Stevens Netzgeraet fuer eine hochstrom-entladungslampe oder leuchtstoffroehre
US4346332A (en) * 1980-08-14 1982-08-24 General Electric Company Frequency shift inverter for variable power control
EP0059053A2 (fr) * 1981-02-21 1982-09-01 THORN EMI plc Alimentation de courant à impulsions
EP0126556A1 (fr) * 1983-05-05 1984-11-28 Dubank Electronics (Pty) Limited Procédé pour mettre en oeuvre et démarrer une lampe à décharge, alimentation de puissance et ballast électronique y afférent

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989007877A1 (fr) * 1988-02-19 1989-08-24 Kaj Jensen Circuit d'excitation et d'actionnement d'une lampe a luminescence
GB2271479A (en) * 1992-10-07 1994-04-13 Transmicro Limited Dimmable H.F. flourescent lamp driver with regulated output
EP0746809A1 (fr) * 1993-11-08 1996-12-11 Energy Savings, Inc. Ballast electronique a faible distorsion harmonique
EP0746809A4 (fr) * 1993-11-08 1997-11-26 Energy Savings Inc Ballast electronique a faible distorsion harmonique

Also Published As

Publication number Publication date
EP0208370B1 (fr) 1990-03-07
DE3669430D1 (de) 1990-04-12
US4812736A (en) 1989-03-14
DE3524266A1 (de) 1987-01-08
CA1294665C (fr) 1992-01-21
JP2554057B2 (ja) 1996-11-13
JPS6212098A (ja) 1987-01-21

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