EP1765042A3 - Shutdown circuit for the inverter of an electronic ballast - Google Patents

Shutdown circuit for the inverter of an electronic ballast Download PDF

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Publication number
EP1765042A3
EP1765042A3 EP06012554A EP06012554A EP1765042A3 EP 1765042 A3 EP1765042 A3 EP 1765042A3 EP 06012554 A EP06012554 A EP 06012554A EP 06012554 A EP06012554 A EP 06012554A EP 1765042 A3 EP1765042 A3 EP 1765042A3
Authority
EP
European Patent Office
Prior art keywords
voltage
circuit
electronic ballast
inverter
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.)
Withdrawn
Application number
EP06012554A
Other languages
German (de)
French (fr)
Other versions
EP1765042A2 (en
Inventor
Bernd Rudolph
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 EP1765042A2 publication Critical patent/EP1765042A2/en
Publication of EP1765042A3 publication Critical patent/EP1765042A3/en
Withdrawn legal-status Critical Current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
    • H05B41/24—Circuit arrangements in which the lamp is fed by high frequency ac, or with separate oscillator frequency
    • 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
    • H05B41/282—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
    • H05B41/285—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2851—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
    • H05B41/2853—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions against abnormal power supply 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
    • H05B41/282—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
    • H05B41/285—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2851—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
    • H05B41/2855—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
    • H05B41/288—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
    • H05B41/292—Arrangements for protecting lamps or circuits against abnormal operating conditions

Abstract

Die Erfindung bezieht sich auf ein elektronisches Vorschaltgerät zum Betrieb einer Entladungslampe LA, bei der eine Pumpschaltung D6, C8, C9, L1 einen Zwischenkreiskondensator C6 aus der Wechselspannung eines Wandlers V1, V2 lädt. Zu dem Zwischenkreiskondensator C6 ist eine Spannungsbegrenzungsschaltung R8, R3, D5, R4, R5, C3, SD parallel geschaltet. Ein Dissipationselement R8 in der Spannungsbegrenzungsschaltung R8, R3, D5, R4, R5, C3, SD wandelt beim Überschreiten eines maximalen Wertes der Spannung über dem Zwischenkreiskondensator C6 elektrische Energie in thermische Energie um. Der Strom durch den Messwiderstand R3 wird als Spannung UC3 über diesem gemessen, in einer Verzögerungsschaltung R4, R5, C3 erfasst und zum Steuern einer Abschalteinrichtung SD für den Wandler V1, V2 genutzt.

Figure imgaf001
The invention relates to an electronic ballast for operating a discharge lamp LA, in which a pump circuit D6, C8, C9, L1 loads a DC link capacitor C6 from the AC voltage of a converter V1, V2. A voltage limiting circuit R8, R3, D5, R4, R5, C3, SD is connected in parallel with the intermediate circuit capacitor C6. A dissipation element R8 in the voltage limiting circuit R8, R3, D5, R4, R5, C3, SD converts electrical energy into thermal energy when a maximum value of the voltage across the intermediate circuit capacitor C6 is exceeded. The current through the measuring resistor R3 is measured as a voltage UC3 above this, detected in a delay circuit R4, R5, C3 and used to control a shutdown SD for the converter V1, V2.
Figure imgaf001
EP06012554A 2005-06-20 2006-06-19 Shutdown circuit for the inverter of an electronic ballast Withdrawn EP1765042A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005028419A DE102005028419A1 (en) 2005-06-20 2005-06-20 Electronic ballast for e.g. coldstarting discharge lamp, has varistor, shutdown device, diode, resistors and integration capacitor connected in parallel for limiting voltage across intermediate circuit capacitor

Publications (2)

Publication Number Publication Date
EP1765042A2 EP1765042A2 (en) 2007-03-21
EP1765042A3 true EP1765042A3 (en) 2008-02-13

Family

ID=36717083

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06012554A Withdrawn EP1765042A3 (en) 2005-06-20 2006-06-19 Shutdown circuit for the inverter of an electronic ballast

Country Status (8)

Country Link
US (1) US7190127B2 (en)
EP (1) EP1765042A3 (en)
KR (1) KR20060133470A (en)
CN (1) CN1893758B (en)
CA (1) CA2550365A1 (en)
DE (1) DE102005028419A1 (en)
RU (1) RU2390107C2 (en)
TW (1) TW200708197A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8508153B2 (en) * 2009-02-15 2013-08-13 Ultimate Interfaces Corporation Electrical device for end user control of electrical power and lighting characteristics
DE102009023884A1 (en) * 2009-06-04 2011-01-27 Osram Gesellschaft mit beschränkter Haftung Electronic ballast and method for operating at least one discharge lamp
TW201228209A (en) * 2010-12-31 2012-07-01 xiang-yu Li AC conversion DC safety energy transfer device
US8810146B1 (en) 2011-11-04 2014-08-19 Universal Lighting Technologies, Inc. Lighting device with circuit and method for detecting power converter activity
US9906213B2 (en) 2015-11-06 2018-02-27 Globalfoundries Inc. Reducing thermal runaway in inverter devices

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4538095A (en) * 1983-06-03 1985-08-27 Nilssen Ole K Series-resonant electronic ballast circuit
EP0276460A1 (en) * 1987-01-08 1988-08-03 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Circuit arrangement for operating a low-pressure discharge lamp
EP0411618A2 (en) * 1989-08-04 1991-02-06 Zumtobel Aktiengesellschaft Electronic ballast for gas discharge lamps
EP0648068A1 (en) * 1993-10-06 1995-04-12 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Circuit for operating electrical lamps
EP0808084A2 (en) * 1996-05-15 1997-11-19 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Safety shutdown in case of asymmetrical power consumption

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2436545C (en) * 2000-10-31 2013-05-28 Osram Sylvania Inc. Ballast self oscillating inverter with phase controlled voltage feedback
DE10108138A1 (en) * 2001-02-20 2002-08-29 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Protection circuit for a fluorescent lamp
DE10241327A1 (en) * 2002-09-04 2004-03-18 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Circuit arrangement for operating discharge lamps

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4538095A (en) * 1983-06-03 1985-08-27 Nilssen Ole K Series-resonant electronic ballast circuit
EP0276460A1 (en) * 1987-01-08 1988-08-03 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Circuit arrangement for operating a low-pressure discharge lamp
EP0411618A2 (en) * 1989-08-04 1991-02-06 Zumtobel Aktiengesellschaft Electronic ballast for gas discharge lamps
EP0648068A1 (en) * 1993-10-06 1995-04-12 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Circuit for operating electrical lamps
EP0808084A2 (en) * 1996-05-15 1997-11-19 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Safety shutdown in case of asymmetrical power consumption

Also Published As

Publication number Publication date
CN1893758A (en) 2007-01-10
EP1765042A2 (en) 2007-03-21
CN1893758B (en) 2011-04-20
TW200708197A (en) 2007-02-16
KR20060133470A (en) 2006-12-26
DE102005028419A1 (en) 2006-12-28
US7190127B2 (en) 2007-03-13
CA2550365A1 (en) 2006-12-20
RU2006121385A (en) 2007-12-27
US20060284566A1 (en) 2006-12-21
RU2390107C2 (en) 2010-05-20

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