WO2009147562A3 - Electronic ballast and fault protection method - Google Patents

Electronic ballast and fault protection method Download PDF

Info

Publication number
WO2009147562A3
WO2009147562A3 PCT/IB2009/052117 IB2009052117W WO2009147562A3 WO 2009147562 A3 WO2009147562 A3 WO 2009147562A3 IB 2009052117 W IB2009052117 W IB 2009052117W WO 2009147562 A3 WO2009147562 A3 WO 2009147562A3
Authority
WO
WIPO (PCT)
Prior art keywords
electronic ballast
disable
protection method
signal
fault protection
Prior art date
Application number
PCT/IB2009/052117
Other languages
French (fr)
Other versions
WO2009147562A2 (en
Inventor
Romel Panlilio
Yuhong Fang
Ganesh Arun
Original Assignee
Koninklijke Philips Electronics, N.V.
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 Koninklijke Philips Electronics, N.V. filed Critical Koninklijke Philips Electronics, N.V.
Publication of WO2009147562A2 publication Critical patent/WO2009147562A2/en
Publication of WO2009147562A3 publication Critical patent/WO2009147562A3/en

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
    • 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
    • H05B41/282—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

Landscapes

  • Air Bags (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

An electronic ballast and fault protection method including an electronic ballast receiving DC power, the electronic ballast including a resonant transformer circuit 20 operably connected to receive the DC power and produce AC power, the resonant transformer circuit (20) having a first switch responsive to a first steering signal 31 and a second switch responsive to a second steering signal (29); a fault sensor (40) operably connected to monitor for faults and generate a disable signal (39); and a disable circuit (38) operably connected to receive the disable signal (39) and disable the second steering signal (29) when the disable signal indicates a fault.
PCT/IB2009/052117 2008-06-06 2009-05-20 Electronic ballast and fault protection method WO2009147562A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US5928308P 2008-06-06 2008-06-06
US61/059,283 2008-06-06

Publications (2)

Publication Number Publication Date
WO2009147562A2 WO2009147562A2 (en) 2009-12-10
WO2009147562A3 true WO2009147562A3 (en) 2010-05-20

Family

ID=41398617

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2009/052117 WO2009147562A2 (en) 2008-06-06 2009-05-20 Electronic ballast and fault protection method

Country Status (1)

Country Link
WO (1) WO2009147562A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7288901B1 (en) * 2006-09-15 2007-10-30 Osram Sylvania Inc. Ballast with arc protection circuit
CN102967842B (en) * 2012-10-24 2014-11-05 重庆大学 Method for on-line diagnosing gradually-changing fault of electronic current transformers
CN104918394A (en) * 2014-03-11 2015-09-16 通用电气公司 Ballast, and arc protection apparatus and method
CN107171299B (en) * 2017-06-07 2019-09-06 国网四川省电力公司电力科学研究院 A kind of intelligent substation relay protection system locking criterion method and device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5883473A (en) * 1997-12-03 1999-03-16 Motorola Inc. Electronic Ballast with inverter protection circuit
US7042161B1 (en) * 2005-02-28 2006-05-09 Osram Sylvania, Inc. Ballast with arc protection circuit
US7288901B1 (en) * 2006-09-15 2007-10-30 Osram Sylvania Inc. Ballast with arc protection circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5883473A (en) * 1997-12-03 1999-03-16 Motorola Inc. Electronic Ballast with inverter protection circuit
US7042161B1 (en) * 2005-02-28 2006-05-09 Osram Sylvania, Inc. Ballast with arc protection circuit
US7288901B1 (en) * 2006-09-15 2007-10-30 Osram Sylvania Inc. Ballast with arc protection circuit

Also Published As

Publication number Publication date
WO2009147562A2 (en) 2009-12-10

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