DE4335375B4 - Power supply unit for supplying a gas discharge lamp - Google Patents
Power supply unit for supplying a gas discharge lamp Download PDFInfo
- Publication number
- DE4335375B4 DE4335375B4 DE4335375A DE4335375A DE4335375B4 DE 4335375 B4 DE4335375 B4 DE 4335375B4 DE 4335375 A DE4335375 A DE 4335375A DE 4335375 A DE4335375 A DE 4335375A DE 4335375 B4 DE4335375 B4 DE 4335375B4
- Authority
- DE
- Germany
- Prior art keywords
- power supply
- gas discharge
- discharge lamp
- switching
- voltage
- 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 - Fee Related
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 18
- 230000001419 dependent effect Effects 0.000 abstract description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
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
-
- 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
- H05B41/2886—Static converters especially adapted therefor; Control thereof comprising a controllable preconditioner, e.g. a booster
-
- 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
- H05B41/2887—Static converters especially adapted therefor; Control thereof characterised by a controllable bridge in the final stage
-
- 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
- H05B41/382—Controlling the intensity of light during the transitional start-up phase
-
- 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
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
Netzgerät zur Speisung einer Gasentladungslampe, bei dem die Gasentladungslampe über periodisch betätigte Schalter an eine Gleichspannung angeschlossen ist, die über einen Netzgleichrichter (1) aus der Netzspannung gewonnen und mittels eines Schaltnetzteils (2–5) umgeformt ist, an dessen Ausgang die Reihenschaltung von zwei Kondensatoren (6, 7) und die Reihenschaltung von zwei Schalttransistoren (12, 13) angeschlossen sind, und wobei die Gasentladungslampe (8) an die Mittelpunkte (c, d) der beiden Reihenschaltungen angeschlossen ist, dadurch gekennzeichnet dass das Schaltnetzteil, die beiden Schalttransistoren (12, 13) und eine Zündschaltung, die eine Zündenergie zum Zünden der Gasentladungslampe (8) abgibt, von einem Mikroprozessor (16) gesteuert sind, der die Zündenergie in Abhängigkeit vom Zustand der Gasentladungslampe (8) steuert, und der bewirkt, dass während einer kritischen Zeit nach dem Abschalten der Gasentladungslampe (8) ein Wiedereinschalten verhindert ist.Power supply unit for power supply a gas discharge lamp, wherein the gas discharge lamp over periodically actuated Switch is connected to a DC voltage via a Mains rectifier (1) obtained from the mains voltage and by means of a switching power supply (2-5) is converted at its output, the series connection of two capacitors (6, 7) and the series connection of two switching transistors (12, 13) are connected, and wherein the gas discharge lamp (8) to the centers (c, d) of the two series circuits connected is, characterized in that the switching power supply, the two Switching transistors (12, 13) and an ignition circuit having an ignition energy to ignite of the gas discharge lamp (8), from a microprocessor (16) are controlled, the ignition energy dependent on controlled by the state of the gas discharge lamp (8), and which causes that while a critical time after switching off the gas discharge lamp (8) a restart is prevented.
Description
Die Erfindung geht aus von einem Netzgerät zur Speisung einer Gasentladungslampe gemäß dem Oberbegriff des Anspruchs 1. Ein bekanntes Netzgerät dieser Art enthält insgesamt fünf Transistoren, und zwar einen Schalttransistor für ein einfaches Schaltnetzteil und vier weitere Schalttransistoren in Form einer Brückenschaltung, in deren Diagonale die Gasentladungslampe liegt. An ein derartiges Netzgerät werden besondere Anforderungen hinsichtlich des Powerfaktors oder Leistungsfaktors gestellt. Dieser Faktor ist unteranderem ein Maß für den Anteil von Oberwellen in dem dem Netz entnommenen Strom. Der Faktor darf nach neuesten Bestimmungen bestimmte, von der jeweiligen Leistung abhängige Werte nicht unterschreiten, um die Oberwellenbelastung des Netzes zu begrenzen.The The invention is based on a power supply unit for supplying a gas discharge lamp according to the generic term of claim 1. A known power supply of this kind contains a total five transistors, and a switching transistor for a simple switching power supply and four further switching transistors in the form of a bridge circuit, in the diagonal of the gas discharge lamp is located. To such a power Supply be special requirements regarding the power factor or Power factor provided. This factor is, inter alia, a measure of the proportion of Harmonics in the current drawn from the grid. The factor is allowed after the latest provisions, depending on their performance not lower in order to limit the harmonic load of the network.
Ein
Netzgerät
zur Speisung einer Gasentladungslampe nach dem Oberbegriff des Anspruchs
1 ist aus der
Der Erfindung liegt die Aufgabe zugrunde, ein Netzgerät der beschriebenen Art so weiterzubilden, dass einerseits der Schaltungsaufwand verringert und andererseits ein höherer Powerfaktor und damit eine geringere Oberwellenbelastung des Netzes erreicht werden.Of the Invention is based on the object, a power supply of the described Refine the type so that on the one hand reduces the amount of circuitry and on the other hand a higher one Power factor and thus a lower harmonic load of the network be achieved.
Diese Aufgabe wird durch die im Anspruch 1 angegebene Erfindung gelöst. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.These The object is achieved by the invention defined in claim 1. advantageous Further developments of the invention are specified in the subclaims.
Vorzugsweise ist der Ladekondensator am Ausgang des Netzgleichrichters so klein bemessen, z. B. 5 μF, dass an dem Ausgang eine im wesentlichen ungesiebte Halbwellenspannung gleichbleibender Polarität entsteht. Die die Reihenschaltung bildenden Kondensatoren am Ausgang des Schaltnetzteils sind demgegenüber groß bemessen, etwa 300–500 μF, und bilden den notwendigen Speicher. Die Lampe ist somit an beiden Enden symmetrisch angeschlossen, nämlich einmal an den Verbindungspunkt der beiden großen Kondensatoren und zum anderen an den Verbindungspunkt der beiden Schalttransistoren. Gegenüber einer bekannten Schaltung wird der Gesamtaufwand von fünf Transistoren, nämlich einem Schalttransistor für das Schaltnetzteil und vier Transistoren für die Brückenschaltung, verringert auf insgesamt nur drei Transistoren. Es hat sich gezeigt, dass durch diese vereinfachte Schaltung ein besonders hoher Powerfaktor, d. h. eine geringe Oberwellenbelastung des Netzes erreicht werden kann.Preferably the charging capacitor at the output of the mains rectifier is so small measured, z. 5 μF, that at the output a substantially unswept half-wave voltage constant polarity arises. The series forming capacitors at the output the switching power supply are in contrast large sized, about 300-500 uF, and form the necessary memory. The lamp is thus connected symmetrically at both ends, namely once at the junction of the two large capacitors and the other to the connection point of the two switching transistors. Opposite one known circuit, the total cost of five transistors, namely a Switching transistor for the switching power supply and four transistors for the bridge circuit, reduced to a total of only three transistors. It has been shown that through this simplified circuit has a particularly high power factor, i. H. a low harmonic load of the network can be achieved.
Gemäß der Erfindung werdender Schalttransistor des Schaltnetzteils, die Transistoren der Reihenschaltung und die Zündschaltung für die Röhre von einem Mikroprozessor gesteuert, der alle wichtigen Systemdaten erfasst. Durch eine derartige Prozessorsteuerung lässt sich zusätzlich folgendes erreichen.According to the invention expectant switching transistor of the switching power supply, the transistors the series circuit and the ignition circuit for the Tube of controlled by a microprocessor, which records all important system data. By such a processor control can be additionally following to reach.
Bestimmte Lampen wie z. B. eine Halogenmetalldampflampe haben folgende Eigenart: Wenn die Lampe ausgeschaltet und unmittelbar darauf wieder eingeschaltet wird, gibt es in der Regel keine Probleme. Indessen gibt es nach dem Ausschalten einen kritischen Zeitbereich, z. B. 30 s–5 min. nach dem Ausschalten. Wenn innerhalb dieses Zeitbereiches die Lampe neu gestartet wird, kann es zu einer Zerstörung des Zündgerätes oder auch der Lampe kommen. Der Mikroprozessor ist nun so ausgebildet, dass er die Zeit nach dem Ausschalten der Lampe mißt und während der genannten kritischen Zeit ein Wiedereinschalten der Lampe verhindert. Der Prozessor kann auch die Energie für den Startvorgang steuern und dem jeweiligen Zustand der Lampe anpassen. Die Startenergie ist z. B. abhängig von der jeweiligen Temperatur der Lampe und kann durch den Mikroprozessor der Temperatur oder anderen Parametern im Zeitpunkt des beabsichtigten Startvorganges angepasst werden. Der Mikroprozessor kann am Ende der Lampenlebendsdauer das Netzgerät gegen Zerstörung schützen. Dieses und die Abweichung von Sollbetriebswerten kann gemeldet oder angezeigt werden.Certain Lamps such. B. a metal halide lamp have the following characteristics: When the lamp is turned off and immediately turned on again there are usually no problems. Meanwhile, it gives way turning off a critical time range, e.g. B. 30 s-5 min. after switching off. If within this time range the lamp restarted, it may lead to destruction of the ignitor or the lamp. The microprocessor is now designed to time after time to turn off the lamp and while the critical time prevents the lamp from switching on again. The processor can also control the power for the boot process and the condition of the lamp. The starting energy is z. B. dependent from the respective temperature of the lamp and can be controlled by the microprocessor the temperature or other parameters at the time of intended Starting process to be adjusted. The microprocessor may end up the lamp life time protect the power supply against destruction. This and the deviation from desired operating values can be reported or displayed become.
Die Erfindung wird im Folgenden anhand der Zeichnung erläutert.The Invention will be explained below with reference to the drawing.
Darin zeigenIn this demonstrate
Die
Bauteile
In
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4335375A DE4335375B4 (en) | 1993-10-16 | 1993-10-16 | Power supply unit for supplying a gas discharge lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4335375A DE4335375B4 (en) | 1993-10-16 | 1993-10-16 | Power supply unit for supplying a gas discharge lamp |
Publications (2)
Publication Number | Publication Date |
---|---|
DE4335375A1 DE4335375A1 (en) | 1995-04-20 |
DE4335375B4 true DE4335375B4 (en) | 2009-04-16 |
Family
ID=6500351
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4335375A Expired - Fee Related DE4335375B4 (en) | 1993-10-16 | 1993-10-16 | Power supply unit for supplying a gas discharge lamp |
Country Status (1)
Country | Link |
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DE (1) | DE4335375B4 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE1009331A3 (en) * | 1995-04-20 | 1997-02-04 | Vito | Power circuit for discharge lamps. |
US6140777A (en) * | 1998-07-29 | 2000-10-31 | Philips Electronics North America Corporation | Preconditioner having a digital power factor controller |
ATE349881T1 (en) * | 2000-09-15 | 2007-01-15 | Tridonicatco Gmbh & Co Kg | ELECTRONIC BALLAST WITH DIGITAL CONTROL UNIT |
US7098605B2 (en) * | 2004-01-15 | 2006-08-29 | Fairchild Semiconductor Corporation | Full digital dimming ballast for a fluorescent lamp |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4677345A (en) * | 1980-08-14 | 1987-06-30 | Nilssen Ole K | Inverter circuits |
SU1457821A3 (en) * | 1982-01-12 | 1989-02-07 | Ой Хелвар (Фирма) | Versions of electronic ballast for discharge lamp |
EP0323676A1 (en) * | 1988-01-06 | 1989-07-12 | Koninklijke Philips Electronics N.V. | Electric arrangement for igniting and supplying a gas discharge lamp |
EP0379729A2 (en) * | 1989-01-25 | 1990-08-01 | Renato Tacconi | Improvements in frequency converter circuits for powering cold cathode fluorescent tubes |
DE4009267A1 (en) * | 1989-03-22 | 1990-09-27 | Nedap Nv | Gas discharge lamp DC powered operating circuit - has inverter bridge using power switching semiconductor and associated buffer circuits |
EP0413991A1 (en) * | 1989-07-28 | 1991-02-27 | Toshiba Lighting & Technology Corporation | Discharge lamp lighting apparatus for driving discharge lamp according to rating thereof |
US5051662A (en) * | 1990-03-27 | 1991-09-24 | Usi Lighting, Inc. | Fluorescent lamp system |
DE4015398A1 (en) * | 1990-05-14 | 1991-11-21 | Hella Kg Hueck & Co | Starter control circuit for HV gas discharge lamp in road vehicle |
DE4032329A1 (en) * | 1990-10-11 | 1992-04-16 | May & Christe Gmbh | HF gas discharge lamp ballast circuit - has storage capacitor with low capacitance value between full-wave rectifier and chopper stage |
EP0536535A1 (en) * | 1991-09-09 | 1993-04-14 | Matsushita Electric Industrial Co., Ltd. | Discharge-lamp lighting apparatus |
US5208515A (en) * | 1990-12-11 | 1993-05-04 | Lee Sang Woo | Protection circuit for stabilizer for discharge apparatus |
DE4220291C1 (en) * | 1992-06-20 | 1993-06-17 | Trilux-Lenze Gmbh + Co Kg, 5760 Arnsberg, De | Ballast circuit for fluorescent lamp with dimmer - includes source supplying brightness signal for control stage for transistor switch bridging lamp electrodes |
-
1993
- 1993-10-16 DE DE4335375A patent/DE4335375B4/en not_active Expired - Fee Related
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4677345B1 (en) * | 1980-08-14 | 1992-08-25 | K Nilssen Ole | |
US4677345A (en) * | 1980-08-14 | 1987-06-30 | Nilssen Ole K | Inverter circuits |
SU1457821A3 (en) * | 1982-01-12 | 1989-02-07 | Ой Хелвар (Фирма) | Versions of electronic ballast for discharge lamp |
EP0323676A1 (en) * | 1988-01-06 | 1989-07-12 | Koninklijke Philips Electronics N.V. | Electric arrangement for igniting and supplying a gas discharge lamp |
EP0379729A2 (en) * | 1989-01-25 | 1990-08-01 | Renato Tacconi | Improvements in frequency converter circuits for powering cold cathode fluorescent tubes |
DE4009267A1 (en) * | 1989-03-22 | 1990-09-27 | Nedap Nv | Gas discharge lamp DC powered operating circuit - has inverter bridge using power switching semiconductor and associated buffer circuits |
EP0413991A1 (en) * | 1989-07-28 | 1991-02-27 | Toshiba Lighting & Technology Corporation | Discharge lamp lighting apparatus for driving discharge lamp according to rating thereof |
US5051662A (en) * | 1990-03-27 | 1991-09-24 | Usi Lighting, Inc. | Fluorescent lamp system |
DE4015398A1 (en) * | 1990-05-14 | 1991-11-21 | Hella Kg Hueck & Co | Starter control circuit for HV gas discharge lamp in road vehicle |
DE4032329A1 (en) * | 1990-10-11 | 1992-04-16 | May & Christe Gmbh | HF gas discharge lamp ballast circuit - has storage capacitor with low capacitance value between full-wave rectifier and chopper stage |
US5208515A (en) * | 1990-12-11 | 1993-05-04 | Lee Sang Woo | Protection circuit for stabilizer for discharge apparatus |
EP0536535A1 (en) * | 1991-09-09 | 1993-04-14 | Matsushita Electric Industrial Co., Ltd. | Discharge-lamp lighting apparatus |
DE4220291C1 (en) * | 1992-06-20 | 1993-06-17 | Trilux-Lenze Gmbh + Co Kg, 5760 Arnsberg, De | Ballast circuit for fluorescent lamp with dimmer - includes source supplying brightness signal for control stage for transistor switch bridging lamp electrodes |
Non-Patent Citations (2)
Title |
---|
KAZIMIERCZUK,M.K., SZARANIEC,W.:Class-D zerovoltage-switching inverter with only one … shunt capacitor.In:IEE Proceedings-B,Vol.139, No.5,Sept.1992,S. … 449-456 * |
KAZIMIERCZUK,M.K.; SZARANIEC,W.:Class-D zerovoltag e-switching inverter with only one shunt capacitor .In:IEE Proceedings-B,Vol.139, No.5,Sept.1992,S.44 9-456 |
Also Published As
Publication number | Publication date |
---|---|
DE4335375A1 (en) | 1995-04-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8120 | Willingness to grant licences paragraph 23 | ||
8110 | Request for examination paragraph 44 | ||
8364 | No opposition during term of opposition | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20120501 |