GB0721762D0 - PFC and ballst control IC - Google Patents

PFC and ballst control IC

Info

Publication number
GB0721762D0
GB0721762D0 GBGB0721762.3A GB0721762A GB0721762D0 GB 0721762 D0 GB0721762 D0 GB 0721762D0 GB 0721762 A GB0721762 A GB 0721762A GB 0721762 D0 GB0721762 D0 GB 0721762D0
Authority
GB
United Kingdom
Prior art keywords
ballst
pfc
control
ballst control
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
GBGB0721762.3A
Other versions
GB2442367A (en
GB2442367B (en
GB2442367A8 (en
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.)
Infineon Technologies Americas Corp
Original Assignee
International Rectifier Corp USA
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 International Rectifier Corp USA filed Critical International Rectifier Corp USA
Priority to GB0721762A priority Critical patent/GB2442367B/en
Priority claimed from GB0621355A external-priority patent/GB2428526B/en
Publication of GB0721762D0 publication Critical patent/GB0721762D0/en
Publication of GB2442367A publication Critical patent/GB2442367A/en
Publication of GB2442367A8 publication Critical patent/GB2442367A8/en
Application granted granted Critical
Publication of GB2442367B publication Critical patent/GB2442367B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • 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
    • 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
    • H05B41/2988—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the lamp against abnormal operating conditions
GB0721762A 2004-04-08 2005-04-08 PFC and ballast control IC Expired - Fee Related GB2442367B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0721762A GB2442367B (en) 2004-04-08 2005-04-08 PFC and ballast control IC

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US56087504P 2004-04-08 2004-04-08
GB0621355A GB2428526B (en) 2004-04-08 2005-04-08 Pfc and ballast control ic
GB0721762A GB2442367B (en) 2004-04-08 2005-04-08 PFC and ballast control IC

Publications (4)

Publication Number Publication Date
GB0721762D0 true GB0721762D0 (en) 2007-12-19
GB2442367A GB2442367A (en) 2008-04-02
GB2442367A8 GB2442367A8 (en) 2008-04-09
GB2442367B GB2442367B (en) 2008-07-30

Family

ID=39149142

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0721762A Expired - Fee Related GB2442367B (en) 2004-04-08 2005-04-08 PFC and ballast control IC

Country Status (1)

Country Link
GB (1) GB2442367B (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6879115B2 (en) * 2002-07-09 2005-04-12 International Rectifier Corporation Adaptive ballast control IC
JP3918151B2 (en) * 2002-08-28 2007-05-23 ミネベア株式会社 Discharge lamp lighting circuit

Also Published As

Publication number Publication date
GB2442367A (en) 2008-04-02
GB2442367B (en) 2008-07-30
GB2442367A8 (en) 2008-04-09

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20100408