EP1020100B1 - Versorgungsschaltung für eine leuchtröhrenanlage - Google Patents
Versorgungsschaltung für eine leuchtröhrenanlage Download PDFInfo
- Publication number
- EP1020100B1 EP1020100B1 EP98946202A EP98946202A EP1020100B1 EP 1020100 B1 EP1020100 B1 EP 1020100B1 EP 98946202 A EP98946202 A EP 98946202A EP 98946202 A EP98946202 A EP 98946202A EP 1020100 B1 EP1020100 B1 EP 1020100B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- voltage
- supply circuit
- transformer
- frequency
- circuit according
- 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.)
- Expired - Lifetime
Links
Images
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
- H05B41/3927—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by pulse width modulation
-
- 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
-
- 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 neon systems divided into different performance classes and both in terms of voltage level as well as Currents in the neon circle.
- the invention has for its object a supply circuit for a fluorescent tube system with a high-voltage transformer specify in the lower frequency range which simple and inexpensive and structurally smaller than usual today network-frequency systems must be set up and through which also mentioned variety of transformers can be reduced.
- the circuit according to the invention is accordingly characterized in that the Supply voltage one from a sinusoidally modulated square wave voltage by filtering AC voltage obtained with a frequency of 300 - 800 Hz is that at the Transformer a fluorescent tube can be connected, and that the transformer is designed is that the supply voltage to a high voltage in the range of 750 V - 15000 V stepped up.
- the inverter WR is further designed so that the width or duration of the square wave signals is variable. This could e.g. by means of one equipped with transistors Bridge inverter circuit can be achieved. About the Controlling the width of the square wave signals can flow in the circuit can be regulated.
- the electronic control EST is with a current measurement signal MI fogged up, which is preferably measured on the primary side becomes. Of course, it could also be determined on the secondary side.
- the electronic regulation EST From the measurement signal MI, the electronic regulation EST generates a control signal S1 for the inverter WR.
- the control signal S1 determines under among other things, the aforementioned width of the inverter WR Square-wave signals and thus the current flow in the circuit.
- the EST scheme is advantageous with at least one other Provide input for a control signal S2, which e.g. of Protective devices for the detection of fault conditions such as Open circuit, short circuit, and / or earth fault can originate.
- a control signal S2 which e.g. of Protective devices for the detection of fault conditions such as Open circuit, short circuit, and / or earth fault can originate.
- one or more could also be on the control Outputs are provided, at which one for the operating state representative information signal IS is available.
- the electronic regulation as a whole, as well as the aforementioned inputs and Outputs can be analog or digital.
Description
- Fig. 1
- ein generelles Schaltschema einer erfindungsgemässen Versorgungsschaltung mit einem Gleichrichter, einem Wechselrichter und einer elektronischen Regelung;
- Fig. 2
- eine Ausführungsform der elektronischen Regelung; und
- Fig. 3
- in einem Diagramm das von dem Wechselrichter bevorzugt erzeugte Spannungspulsmuster.
Claims (9)
- Versorgungsschaltung für eine Leuchtröhrenanlage mit einem Hochspannungstransformator (T), welcher primärseitig an eine Speisespannung angeschlossen .und ohne Luftspalt ausgebildet ist, und wobei als Ersatz für einen Luftspalt am Transformator im Speisekreis eine die strombegrenzende Funktion eines Luftspaltes nachbildende elektronische Regelung (EST) vorgesehen ist, dadurch gekennzeichnet, dass die Speisespannung eine aus einer sinusförmig modulierten Rechteckspannung durch Filtern gewonnene Wechselspannung mit einer Frequenz von 300 - 800 Hz ist, dass an dem Transformator sekundärseitig eine Leuchtröhre anschliessbar ist, und dass der Transformator so ausgelegt ist, dass er die Speisespannung auf eine Hochspannung im Bereich von 750 V - 15000 V hochtransformiert.
- Versorgungsschaltung nach Anspruch 1, dadurch gekennzeichnet, dass die Frequenz der Speisespannung 400 Hz beträgt.
- Versorgungsschaltung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Speisespannung durch Gleichrichten mit einem Gleichrichter (GR) und durch nachfolgendes Wechselrichten mit einem Wechselrichter (WR) aus dem elektrischen Wechselspannungsnetz (Ph,N.E) gewonnen wird.
- Versorgungsschaltung nach Anspruch 3, dadurch gekennzeichnet, dass der Wechselrichter (WR) eine sinusförmig modulierte Rechteckspannung bzw. eine sinusförmig modulierte Folge von Rechtecksignalen erzeugt.
- Versorgungsschaltung nach Anspruch 4, dadurch gekennzeichnet, dass der Wechelrichter (WR) eine Steuerung der Breite bzw. der Dauer der Rechtecksignale zulässt.
- Versorgungsschaltung nach Anspruch 5, dadurch gekennzeichnet, dass die Breite bzw. Dauer der Rechtecksignale in Abhängigkeit von einem Steuersignal (S1) erfolgt, welches aus einem Strom-Messignal (MI) durch die elektronische Steuerung EST abgeleitet wird.
- Versorgungsschaltung nach Anspruch 6 dadurch gekennzeichnet, dass das Strom-Messignal (MI) auf der Primärseite des Transformators (T) gewonnen werden.
- Versorgungsschaltung nach einem der Ansprüche 1 - 7, dadurch gekennzeichnet, dass zwischen den Wechselrichter (WR) und die Primärwicklung des Transformators (T) ein Filter (F2) zur Reduktion von Oberwellen bezüglich der Frequenz der Speisespannung geschaltet ist, welcher mit der Primärwicklung einen Schwingkreis bildet
- Versorgungsschaltung nach Anspruch 8, dadurch gekennzeichnet, dass die Resonanzfrequenz des Schwingkreises auf die Frequenz der Speisespannung abgestimmt ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH02378/97A CH692375A5 (de) | 1997-10-10 | 1997-10-10 | Versorgungsschaltung für eine Leuchtröhrenanlage. |
CH237897 | 1997-10-10 | ||
PCT/CH1998/000432 WO1999020084A1 (de) | 1997-10-10 | 1998-10-09 | Versorgungsschaltung für eine leuchtröhrenanlage |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1020100A1 EP1020100A1 (de) | 2000-07-19 |
EP1020100B1 true EP1020100B1 (de) | 2003-01-08 |
Family
ID=4232384
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98946202A Expired - Lifetime EP1020100B1 (de) | 1997-10-10 | 1998-10-09 | Versorgungsschaltung für eine leuchtröhrenanlage |
Country Status (7)
Country | Link |
---|---|
US (1) | US6236169B1 (de) |
EP (1) | EP1020100B1 (de) |
JP (1) | JP2001520451A (de) |
CH (1) | CH692375A5 (de) |
DE (1) | DE59806882D1 (de) |
ES (1) | ES2189243T3 (de) |
WO (1) | WO1999020084A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016010995A1 (de) | 2016-09-10 | 2018-03-15 | Sedlbauer Ag | Effizientes, umweltfreundliches und kostengünstiges AC/AC-Netzteil mit erhöhter Ausgangsfrequenz für Anwendungen in elektrischen Flächenheizsystemen |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6121734A (en) * | 1998-10-16 | 2000-09-19 | Szabados; Barna | Apparatus for dimming a fluorescent lamp with a magnetic ballast |
US6538395B2 (en) | 1999-10-15 | 2003-03-25 | 1263357 Ontario Inc. | Apparatus for dimming a fluorescent lamp with a magnetic ballast |
JP5691137B2 (ja) * | 2008-05-14 | 2015-04-01 | 富士電機株式会社 | スイッチング電源 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4535399A (en) * | 1983-06-03 | 1985-08-13 | National Semiconductor Corporation | Regulated switched power circuit with resonant load |
US4616159A (en) * | 1983-08-22 | 1986-10-07 | The North American Manufacturing Company | Driving circuit for pulsating radiation detector |
DE3636901A1 (de) * | 1986-10-30 | 1988-05-05 | Philips Patentverwaltung | Verfahren zum betrieb einer hochdruck-natriumdampfentladungslampe |
US5057748A (en) * | 1989-10-16 | 1991-10-15 | Everbrite, Inc. | Power supply circuit for gas discharge tube |
EP0439861A1 (de) * | 1990-01-29 | 1991-08-07 | Koninklijke Philips Electronics N.V. | Schaltanordnung |
GB2253077A (en) * | 1991-01-23 | 1992-08-26 | Carl Edmund Smith | Power control system for gas discharge tubes |
US5349273A (en) * | 1992-11-23 | 1994-09-20 | Everbrite, Inc. | Dimmer and ground fault interruption for solid state neon supply |
US5371440A (en) * | 1993-12-28 | 1994-12-06 | Philips Electronics North America Corp. | High frequency miniature electronic ballast with low RFI |
WO1996031095A1 (en) * | 1995-03-29 | 1996-10-03 | Stebbins Russell T | Method and apparatus for direct current pulsed ionization lighting |
-
1997
- 1997-10-10 CH CH02378/97A patent/CH692375A5/de not_active IP Right Cessation
-
1998
- 1998-10-09 US US09/529,058 patent/US6236169B1/en not_active Expired - Fee Related
- 1998-10-09 DE DE59806882T patent/DE59806882D1/de not_active Expired - Fee Related
- 1998-10-09 EP EP98946202A patent/EP1020100B1/de not_active Expired - Lifetime
- 1998-10-09 JP JP2000516510A patent/JP2001520451A/ja active Pending
- 1998-10-09 ES ES98946202T patent/ES2189243T3/es not_active Expired - Lifetime
- 1998-10-09 WO PCT/CH1998/000432 patent/WO1999020084A1/de active IP Right Grant
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016010995A1 (de) | 2016-09-10 | 2018-03-15 | Sedlbauer Ag | Effizientes, umweltfreundliches und kostengünstiges AC/AC-Netzteil mit erhöhter Ausgangsfrequenz für Anwendungen in elektrischen Flächenheizsystemen |
Also Published As
Publication number | Publication date |
---|---|
DE59806882D1 (de) | 2003-02-13 |
ES2189243T3 (es) | 2003-07-01 |
EP1020100A1 (de) | 2000-07-19 |
JP2001520451A (ja) | 2001-10-30 |
CH692375A5 (de) | 2002-05-15 |
US6236169B1 (en) | 2001-05-22 |
WO1999020084A1 (de) | 1999-04-22 |
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