EP0808085A3 - High frequency operating circuit with improved electromagnetic compatibility for low pressure discharge lamps - Google Patents

High frequency operating circuit with improved electromagnetic compatibility for low pressure discharge lamps Download PDF

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Publication number
EP0808085A3
EP0808085A3 EP97107207A EP97107207A EP0808085A3 EP 0808085 A3 EP0808085 A3 EP 0808085A3 EP 97107207 A EP97107207 A EP 97107207A EP 97107207 A EP97107207 A EP 97107207A EP 0808085 A3 EP0808085 A3 EP 0808085A3
Authority
EP
European Patent Office
Prior art keywords
pump
capacitor
lamp
high frequency
low pressure
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
EP97107207A
Other languages
German (de)
French (fr)
Other versions
EP0808085A2 (en
EP0808085B1 (en
Inventor
Felix Dr. Franck
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP0808085A2 publication Critical patent/EP0808085A2/en
Publication of EP0808085A3 publication Critical patent/EP0808085A3/en
Application granted granted Critical
Publication of EP0808085B1 publication Critical patent/EP0808085B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/355—Power factor correction [PFC]; Reactive power compensation

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

Vorgeschlagen wird eine Schaltung zum hochfrequenten Betrieb zumindest einer Lampe mit einem aktiven Oberwellenfilter mit zumindest einem kapazitiven Pumpzweig mit einem Pumpkondensator (C1; C2) zur Energierückführung zu einem Glättungskondensator (C4) von einem lampenseitigen Anschlußpunkt zwischen einschließlich einem Mittenabgriff des Gegentaktfrequenzgenerators und einer ersten Lampenelektrode, dadurch gekennzeichnet, daß zwischen einem Punkt zumindest eines Pumpzweiges, der von dem Mittenabgriff des Gegentaktfrequenzgenerators aus hinter dem Kondensator (C1; C2) des Pumpzweiges liegt, und einem der Außenabgriffe ein Trapezkondensator (CT1; CT2) vorgesehen ist und somit der oder die Pumpkondensatoren des oder der Pumpzweige die einzigen direkt kapazitiv belastend an dem Mittenabgriff des Gegentaktfrequenzgenerators angeschlossenen Kondensatoren sind und/oder kein der Lampe im Betriebszustand unmittelbar parallel geschalteter Resonanzkondensator (C6) zur Lampenzündung vorgesehen ist.

Figure 00000001
A circuit is proposed for high-frequency operation of at least one lamp with an active harmonic filter with at least one capacitive pump branch with a pump capacitor (C1; C2) for energy return to a smoothing capacitor (C4) from a lamp-side connection point between including a center tap of the push-pull frequency generator and a first lamp electrode, characterized in that a trapezoidal capacitor (CT1; CT2) is provided between a point of at least one pump branch which is located behind the capacitor (C1; C2) of the pump branch from the center tap of the push-pull frequency generator, and one of the outer taps and thus the pump capacitor or pumps of the or the pump branches are the only capacitors connected directly to the center tap of the push-pull frequency generator and / or none of the resonance capacitors (C6) connected directly in parallel in the operating state for lamp ignition marriages.
Figure 00000001
EP97107207A 1996-05-15 1997-04-30 High frequency operating circuit with improved electromagnetic compatibility for low pressure discharge lamps Expired - Lifetime EP0808085B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19619581 1996-05-15
DE19619581A DE19619581A1 (en) 1996-05-15 1996-05-15 High-frequency operating circuit for a low-pressure discharge lamp with improved electromagnetic compatibility

Publications (3)

Publication Number Publication Date
EP0808085A2 EP0808085A2 (en) 1997-11-19
EP0808085A3 true EP0808085A3 (en) 1998-11-18
EP0808085B1 EP0808085B1 (en) 2001-11-21

Family

ID=7794388

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97107207A Expired - Lifetime EP0808085B1 (en) 1996-05-15 1997-04-30 High frequency operating circuit with improved electromagnetic compatibility for low pressure discharge lamps

Country Status (4)

Country Link
US (1) US5880564A (en)
EP (1) EP0808085B1 (en)
CA (1) CA2205344C (en)
DE (2) DE19619581A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19725645A1 (en) * 1997-06-18 1998-12-24 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Pump support throttle
IT1296492B1 (en) 1997-11-21 1999-06-25 Whirlpool Co SYSTEM TO INDICATE THE RESIDUAL HEAT OF THE GRIDS OF DOMESTIC GAS COOKING APPLIANCES
US6137234A (en) * 1999-10-18 2000-10-24 U.S. Philips Corporation Circuit arrangement
US6356034B1 (en) 2000-03-22 2002-03-12 Regal King Manufacturing Limited Low voltage discharge lamp power supply
CN1190110C (en) * 2001-04-03 2005-02-16 马士科技有限公司 Output circuit of electronic ballast of fluorescent lamp
US7002301B2 (en) * 2003-10-15 2006-02-21 Lutron Electronics Co., Inc. Apparatus and methods for making capacitive measurements of cathode fall in fluorescent lamps
TWI281364B (en) * 2004-07-28 2007-05-11 Delta Electronics Inc Electronic ballast
DE102004045514A1 (en) * 2004-09-20 2006-03-30 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Circuit arrangement for operating at least one light source
US7863827B2 (en) * 2008-05-23 2011-01-04 Osram Sylvania Inc. Ceramic metal halide lamp bi-modal power regulation control
CN101466191B (en) * 2009-01-08 2012-07-04 王家诚 High-frequency electronic frequency changer of high-power parallel connection selfexciting electrodeless florescent lamp
CN103491694B (en) * 2013-08-27 2016-03-09 钟海停 Module special for fluorescent lamp energy conservation
RU194944U1 (en) * 2019-08-29 2019-12-30 Федеральное государственное бюджетное учреждение "Петербургский институт ядерной физики им. Б.П. Константинова Национального исследовательского центра "Курчатовский институт" (НИЦ "Курчатовский институт" - ПИЯФ) KEY TWO-STAGE HARMONIC OSCILLATION GENERATOR

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0253224A2 (en) * 1986-07-14 1988-01-20 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Circuit arrangement for operating low-pressure discharge lamps
WO1996007297A2 (en) * 1994-08-22 1996-03-07 Philips Electronics N.V. Circuit arrangement for a discharge lamp comprising a dc-ac converter and a resonance circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0253224A2 (en) * 1986-07-14 1988-01-20 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Circuit arrangement for operating low-pressure discharge lamps
WO1996007297A2 (en) * 1994-08-22 1996-03-07 Philips Electronics N.V. Circuit arrangement for a discharge lamp comprising a dc-ac converter and a resonance circuit

Also Published As

Publication number Publication date
US5880564A (en) 1999-03-09
EP0808085A2 (en) 1997-11-19
DE59705440D1 (en) 2002-01-03
EP0808085B1 (en) 2001-11-21
DE19619581A1 (en) 1997-11-20
CA2205344C (en) 2004-09-28
CA2205344A1 (en) 1997-11-15

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