DE102008012452A1 - Circuit for heating and monitoring the heating coils of at least one operated with an electronic ballast gas discharge lamp on spiral breakage - Google Patents
Circuit for heating and monitoring the heating coils of at least one operated with an electronic ballast gas discharge lamp on spiral breakage Download PDFInfo
- Publication number
- DE102008012452A1 DE102008012452A1 DE200810012452 DE102008012452A DE102008012452A1 DE 102008012452 A1 DE102008012452 A1 DE 102008012452A1 DE 200810012452 DE200810012452 DE 200810012452 DE 102008012452 A DE102008012452 A DE 102008012452A DE 102008012452 A1 DE102008012452 A1 DE 102008012452A1
- Authority
- DE
- Germany
- Prior art keywords
- heating
- circuit
- voltage
- lamp
- gas discharge
- 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.)
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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
- H05B41/295—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 with preheating electrodes, e.g. for fluorescent lamps
- H05B41/298—Arrangements for protecting lamps or circuits against abnormal operating conditions
- H05B41/2981—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
- H05B41/2985—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions against abnormal lamp operating conditions
-
- 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
- H05B41/295—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 with preheating electrodes, e.g. for fluorescent lamps
-
- 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
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
- Control Of Resistance Heating (AREA)
Abstract
Die Erfindung betrifft eine Schaltung zum Beheizen und Überwachen der Heizwendeln (W1b, W2b) mindestens einer mit einem elektronischen Vorschaltgerät betriebenen Gasentladungslampe (L1, L2) auf Wendelbruch. Dazu ist jede der zu überwachenden Heizwendeln (W1b, W2b) Teil eines separaten Überwachungskreises. Jeder Überwachungskreis ist mit einer Gleichspannungsquelle verbunden und enthält mindestens eine R/C-Kombination, zu der die betreffende Heizwendel (W1b, W2b) parallel geschaltet ist. Es sind Mess- und Auswertemittel (H, P) vorgesehen, die nach einer Unterbrechung der Gleichspannungsversorgung eines Überwachungskreises aufgrund der Abklingzeit der Spannung einen möglichen Bruch der Heizwendel diagnostizieren.The invention relates to a circuit for heating and monitoring the heating coils (W1b, W2b) of at least one gas discharge lamp (L1, L2) operated on an electronic ballast for spiral breakage. For this purpose, each of the heating coils to be monitored (W1b, W2b) is part of a separate monitoring circuit. Each monitoring circuit is connected to a DC voltage source and contains at least one R / C combination to which the corresponding heating coil (W1b, W2b) is connected in parallel. Measuring and evaluation means (H, P) are provided which, after an interruption of the DC voltage supply of a monitoring circuit, due to the decay time of the voltage, diagnose a possible breakage of the heating coil.
Description
Die Erfindung betrifft eine Schaltung zum Beheizen und Überwachen der Heizwendeln einer mit einem elektronischen Vorschaltgerät betriebenen Gasentladungslampe auf Wendelbruch.The The invention relates to a circuit for heating and monitoring the heating coils of a powered with an electronic ballast gas discharge lamp on spiral break.
Diese Schaltung ist Gegenstand des Anspruches 1. Weiterbildende Merkmale finden sich in den von Anspruch 1 abhängigen Ansprüchen.These Circuit is the subject of claim 1. Further developing features can be found in the dependent of claim 1 claims.
Die Erfindung betrifft ferner eine Heizschaltung für mindestens eine mit einem elektronischen Vorschaltgerät betriebene Gasentladungslampe. Die Heizschaltung ist Gegenstand des unabhängigen Anspruches 7 und durch die Merkmale der von Anspruch 7 abhängigen Ansprüche weitergebildet.The The invention further relates to a heating circuit for at least one with a electronic ballast operated gas discharge lamp. The heating circuit is the subject of the independent claim 7 and further developed by the features of the claims dependent on claim 7.
Ausführungsbeispiele der Erfindung werden nachfolgend anhand der Zeichnungen beschrieben. Es zeigen:embodiments The invention will be described below with reference to the drawings. It demonstrate:
Das
in
Zur
Erzeugung der Betriebsspannung für
die Lampen L1, L2 wird von einem Gleichrichter
Ein
mit einem Bus verbundener Programmgeber
Die
von den Wendelstrom-Messmitteln
Der
Differenzwertbildner
Es
sei in diesem Zusammenhang darauf hingewiesen, dass die einzelnen
Blöcke
in
Die
in
Letztere korrespondiert mit einem Mikroprozessor P. Der Mikroprozessor P erhält Steuerbefehle von einem Bus.Latter corresponds to a microprocessor P. The microprocessor P receives Control commands from a bus.
Der Heiztransformator T weist drei Sekundärwicklungen T2, T3 und T4 auf. Jede der Sekundärwicklungen ist mit einer Gleichrichterschaltung verbunden. Die Gleichrichterschaltung für die Sekundärwicklung T2 besteht aus einer Diode B1 und einem Kondensator C1. Die Gleichrichterschaltung für die Sekundärwicklung T3 besteht aus einer Diode D3 und einem Kondensator C3. Die Gleichrichterschaltung für die Sekundärwicklung T4 besteht aus einer Diode D4 und einem Kondensator C4.Of the Heating transformer T has three secondary windings T2, T3 and T4. Each of the secondary windings is connected to a rectifier circuit. The rectifier circuit for the secondary winding T2 consists of a diode B1 and a capacitor C1. The rectifier circuit for the secondary winding T3 consists of a diode D3 and a capacitor C3. The rectifier circuit for the secondary winding T4 consists of a diode D4 and a capacitor C4.
Der Flyback-Konverter erzeugt aus der vom Bus gelieferten Gleichspannung eine Wechselspannung, die durch die genannten Gleichrichterschaltungen gleichgerichtet wird. Die Kondensatoren C1, C3 und C4 dienen zum Glätten der dadurch erzeugten pulsierenden Gleichspannung. Die Höhe der Gleichspannung kann durch Variation des Taktverhältnisses und/oder der Taktfrequenz des Schalters beeinflusst werden.Of the Flyback converter generated from the DC voltage supplied by the bus an AC voltage passing through said rectifier circuits is rectified. The capacitors C1, C3 and C4 are used for Smooth the pulsating DC voltage generated thereby. The height of the DC voltage can by varying the clock ratio and / or the clock frequency of the switch.
Die von den Gleichrichterschaltungen an den Sekundärwicklungen T3 und T4 ausgekoppelten Gleichspannungen dienen zum Beheizen der ”heißen” Wendeln W1a und W2a der beiden Lampen L1 und L2. Die ”kalten” Wendeln W1b und W2b werden gemeinsam von der Sekundärwicklung T2 gespeist. Dazu ist zu der Gleichrichterschaltung, bestehend aus der Diode D1 und dem Kondensator C1, eine weitere Gleichrichterschaltung parallel geschaltet, die aus einer Diode D2 und einem Kondensator C2 besteht. Über beiden Gleichrichterschaltungen D1/C1 und D2/C2 liegt je ein Spannungsteiler. Der eine Spannungsteiler besteht aus den Widerständen R1 und R2. Der zweite Spannungsteiler besteht aus den Widerständen R4 und R5. Von den Knotenpunkten der beiden Spannungsteiler werden Messsignale ausgekoppelt und der Steuerschaltung H zugeführt. Die Messsignale sind ein Maß für die Wendelspannung an den beiden ”kalten” Wendeln W1b und W2b. Die Ströme durch die beiden letztgenannten Wendeln fließen gemeinsam über einen Messwiderstand R3. Sie verursachen an diesem einen Spannungsabfall, der als Messsignal an den Mikroprozessor P weitergeleitet wird und ein Maß für den Summenstrom ist.The from the rectifier circuits at the secondary windings T3 and T4 decoupled DC voltages serve to heat the "hot" coils W1a and W2a of the two lamps L1 and L2. The "cold" coils W1b and W2b become common from the secondary winding T2 fed. For this purpose, the rectifier circuit consisting of the diode D1 and the capacitor C1, another rectifier circuit connected in parallel, consisting of a diode D2 and a capacitor C2 exists. about two rectifier circuits D1 / C1 and D2 / C2 is ever a voltage divider. The one voltage divider consists of the resistors R1 and R2. The second Voltage divider consists of the resistors R4 and R5. From the nodes the two voltage divider signals are coupled out and the Control circuit H supplied. The Measuring signals are a measure of the filament voltage at the two "cold" coils W1b and W2b. The streams through the two latter coils flow together over a Measuring resistor R3. They cause a voltage drop at this, which is forwarded as a measurement signal to the microprocessor P and is a measure of the total current.
Es ist auch möglich, die Widerstände R4 und R5 hinter den Messwiderstand R3 zu verlegen, wie dies in gestrichelten Linien angedeutet ist. Die Widerstände sind hier mit R4' und R5' bezeichnet.It is possible, too, the resistances R4 and R5 behind the measuring resistor R3 to lay, as in dashed lines is indicated. The resistors are here designated R4 'and R5'.
Die Steuerschaltung H und der Mikroprozessor P bilden zusammen aus den Messsignalen für die Wendelspannungen und aus dem Messsignal für den Summenstrom den Wendelwiderstand. Der Wendelwiderstand zu Beginn einer Vorheizphase wird als Kaltwiderstand gespeichert. Der Wendelwiderstand nach einer bestimmten Zeit innerhalb der Vorheizphase wird als Heißwiderstand gespeichert. Aus dem Heißwiderstand und aus dem Kaltwiderstand wird die Widerstandsdifferenz gebildet und mit Werten einer Referenztabelle verglichen, um den Typ der beiden Lampen L1 und L2 zu bestimmen.The Control circuit H and the microprocessor P together form the Measuring signals for the filament voltages and from the measured signal for the total current the filament resistance. The helical resistance at the beginning of a preheat phase is called cold resistance saved. The helical resistance after a certain time within the preheat phase is called hot resistance saved. From the hot resistor and from the cold resistance, the resistance difference is formed and compared with values of a reference table to determine the type of the to determine both lamps L1 and L2.
Es ist zu bemerken, dass die Versorgung der ”kalten” Wendeln W1b und W2b durch eine einzige Sekundärwicklung T2 eine bedeutende Vereinfachung der Schaltung mit sich bringt. Wenn mit der Heizschaltung mehr als zwei Lampen betrieben werden sollen, so kann das System beibehalten werden, dass die ”kalten” Wendeln von nur einer Sekundärwicklung gespeist werden. Allerdings muss für jede weitere ”kalte” Wendel ein eigenständiger Gleichrichter vorgesehen werden.It It should be noted that the supply of the "cold" coils W1b and W2b through a single secondary winding T2 brings a significant simplification of the circuit. When more than two lamps are operated with the heating circuit should, so the system can be maintained that the "cold" coils from only one secondary winding be fed. However, for every additional "cold" filament an independent one Rectifier be provided.
Die Schaltung zeichnet sich dadurch aus, dass an sie hohe Anforderungen bezüglich Kopplungsfaktor und Spannungsfestigkeit gestellt werden können, ohne Nachteil bezüglich möglicher Messungen und damit gewonnener Informationen. Durch die Messung des Summenstromes der ”kalten” Wendeln und die Messung beider Wendelspannungen ist es möglich, den Widerstand der beiden parallel geschalteten Wendeln zu bestimmen.The Circuit is characterized by the fact that high demands on her in terms of Coupling factor and withstand voltage can be provided without Disadvantage regarding potential Measurements and information obtained with them. By the measurement of the total current of the "cold" spirals and The measurement of both filament voltages makes it possible to reduce the resistance of the two to determine parallel coils.
Weiterhin kann ein Wendelbruch wie folgt ermittelt werden. Es sei angenommen, dass die Wendel W1b gebrochen ist. Wenn der Konverter eingeschaltet und danach wieder ausgeschaltet wird, und nach dem Ausschalten die Wandelspannungen gemessen werden, so zeigt sich folgendes. Die Spannung am Spannungsteiler R1/R2 bleibt lange erhalten, da eine Zeitkonstante gilt, die sich aus dem Produkt von (R1 + R2) × C1 ergibt. Die Spannung an dem Spannungsteiler R4/R5 klingt dagegen schnell ab, weil hier die Zeitkonstante Rhot × C2 gilt. Rhot ist wesentlich größer als (R1 + R2).Farther a helical break can be determined as follows. It is assumed that the helix W1b is broken. When the converter is turned on and then turned off again, and after turning off the Transforming voltages are measured, it shows the following. The voltage at the voltage divider R1 / R2 remains long, as a time constant which results from the product of (R1 + R2) × C1. The tension on the Voltage divider R4 / R5, however, sounds fast, because here the time constant Rhot × C2 applies. Rhot is much bigger than (R1 + R2).
Wenn
die Heizwendel-Prüfung
den Bruch einer der Heizwendeln W1b, W2b ergibt, so wird der Wendelwiderstand
der nicht gebrochenen Heizwendel durch die in
Claims (9)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810012452 DE102008012452A1 (en) | 2008-03-04 | 2008-03-04 | Circuit for heating and monitoring the heating coils of at least one operated with an electronic ballast gas discharge lamp on spiral breakage |
PCT/EP2009/001376 WO2009109326A1 (en) | 2008-03-04 | 2009-02-26 | Circuit for heating and monitoring the hot coils of at least one gas discharge lamp operated by an evg and lighting system |
DE112009000362T DE112009000362A5 (en) | 2008-03-04 | 2009-02-26 | Circuit for heating and monitoring the heating coils of at least one gas discharge lamp operated with an electronic ballast and illumination system |
CN200980107863.6A CN101965755B (en) | 2008-03-04 | 2009-02-26 | Circuit for heating and monitoring the hot coils of at least one gas discharge lamp operated by an evg and lighting system |
EP09717176A EP2248396A1 (en) | 2008-03-04 | 2009-02-26 | Circuit for heating and monitoring the hot coils of at least one gas discharge lamp operated by an evg and lighting system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810012452 DE102008012452A1 (en) | 2008-03-04 | 2008-03-04 | Circuit for heating and monitoring the heating coils of at least one operated with an electronic ballast gas discharge lamp on spiral breakage |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008012452A1 true DE102008012452A1 (en) | 2009-09-10 |
Family
ID=40638169
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200810012452 Withdrawn DE102008012452A1 (en) | 2008-03-04 | 2008-03-04 | Circuit for heating and monitoring the heating coils of at least one operated with an electronic ballast gas discharge lamp on spiral breakage |
DE112009000362T Withdrawn DE112009000362A5 (en) | 2008-03-04 | 2009-02-26 | Circuit for heating and monitoring the heating coils of at least one gas discharge lamp operated with an electronic ballast and illumination system |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE112009000362T Withdrawn DE112009000362A5 (en) | 2008-03-04 | 2009-02-26 | Circuit for heating and monitoring the heating coils of at least one gas discharge lamp operated with an electronic ballast and illumination system |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2248396A1 (en) |
CN (1) | CN101965755B (en) |
DE (2) | DE102008012452A1 (en) |
WO (1) | WO2009109326A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US9309493B2 (en) * | 2009-03-27 | 2016-04-12 | Eidgenoessische Technische Hochschule Zurich | Salmonella enterica presenting C. jejuni N-glycan or derivatives thereof |
DE102010064032A1 (en) * | 2010-12-23 | 2012-06-28 | Tridonic Gmbh & Co. Kg | Regulated coil heater for gas discharge lamps |
CN104255084B (en) * | 2011-12-05 | 2016-04-27 | 通用电气公司 | For the step light regulating method of lamp ballast |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1103165B1 (en) * | 1999-05-25 | 2003-07-16 | TridonicAtco GmbH & Co. KG | Electronic ballast for at least one low-pressure discharge lamp |
US6819063B2 (en) * | 2002-12-13 | 2004-11-16 | Bruce Industries, Inc. | Sensing voltage for fluorescent lamp protection |
EP1519638A1 (en) * | 2003-09-29 | 2005-03-30 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Method for operating a low pressure discharge lamp |
WO2005060320A1 (en) * | 2003-12-11 | 2005-06-30 | Koninklijke Philips Electronics, N.V. | Electronic ballast with lamp type determination |
DE102005018761A1 (en) * | 2005-04-22 | 2006-10-26 | Tridonicatco Gmbh & Co. Kg | Intelligent flyback heater |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI112773B (en) * | 2002-04-30 | 2003-12-31 | Teknoware Oy | Method and arrangement in connection with a connection device and a connection device |
DE202005013753U1 (en) * | 2005-08-31 | 2005-11-17 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Electronic ballast for operating discharge lamp, has control device to ignite lamp discharging in non-repetitive process for parameter e.g. voltage, that is correlated to temperature of electrodes during measurement of parameter |
CN101060737A (en) * | 2006-04-19 | 2007-10-24 | 皇家飞利浦电子股份有限公司 | A circuit of displaying the functional status of detecting lamp and ballast |
-
2008
- 2008-03-04 DE DE200810012452 patent/DE102008012452A1/en not_active Withdrawn
-
2009
- 2009-02-26 WO PCT/EP2009/001376 patent/WO2009109326A1/en active Application Filing
- 2009-02-26 DE DE112009000362T patent/DE112009000362A5/en not_active Withdrawn
- 2009-02-26 EP EP09717176A patent/EP2248396A1/en not_active Withdrawn
- 2009-02-26 CN CN200980107863.6A patent/CN101965755B/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1103165B1 (en) * | 1999-05-25 | 2003-07-16 | TridonicAtco GmbH & Co. KG | Electronic ballast for at least one low-pressure discharge lamp |
US6819063B2 (en) * | 2002-12-13 | 2004-11-16 | Bruce Industries, Inc. | Sensing voltage for fluorescent lamp protection |
EP1519638A1 (en) * | 2003-09-29 | 2005-03-30 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Method for operating a low pressure discharge lamp |
WO2005060320A1 (en) * | 2003-12-11 | 2005-06-30 | Koninklijke Philips Electronics, N.V. | Electronic ballast with lamp type determination |
DE102005018761A1 (en) * | 2005-04-22 | 2006-10-26 | Tridonicatco Gmbh & Co. Kg | Intelligent flyback heater |
Also Published As
Publication number | Publication date |
---|---|
DE112009000362A5 (en) | 2011-01-13 |
CN101965755B (en) | 2014-07-23 |
EP2248396A1 (en) | 2010-11-10 |
WO2009109326A1 (en) | 2009-09-11 |
CN101965755A (en) | 2011-02-02 |
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Legal Events
Date | Code | Title | Description |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8143 | Withdrawn due to claiming internal priority |