GB2442367B - PFC and ballast control IC - Google Patents
PFC and ballast control ICInfo
- Publication number
- GB2442367B GB2442367B GB0721762A GB0721762A GB2442367B GB 2442367 B GB2442367 B GB 2442367B GB 0721762 A GB0721762 A GB 0721762A GB 0721762 A GB0721762 A GB 0721762A GB 2442367 B GB2442367 B GB 2442367B
- Authority
- GB
- United Kingdom
- Prior art keywords
- pfc
- ballast control
- ballast
- 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.)
- Expired - Fee Related
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
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 GB0721762D0 (en) | 2007-12-19 |
GB2442367A GB2442367A (en) | 2008-04-02 |
GB2442367A8 GB2442367A8 (en) | 2008-04-09 |
GB2442367B true 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) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004006630A1 (en) * | 2002-07-09 | 2004-01-15 | International Rectifier Corporation | Adaptive ballast control ic |
EP1395095A1 (en) * | 2002-08-28 | 2004-03-03 | Minebea Co., Ltd. | Discharge lamp lighting circuit with protection circuit |
-
2005
- 2005-04-08 GB GB0721762A patent/GB2442367B/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004006630A1 (en) * | 2002-07-09 | 2004-01-15 | International Rectifier Corporation | Adaptive ballast control ic |
EP1395095A1 (en) * | 2002-08-28 | 2004-03-03 | Minebea Co., Ltd. | Discharge lamp lighting circuit with protection circuit |
Also Published As
Publication number | Publication date |
---|---|
GB2442367A8 (en) | 2008-04-09 |
GB2442367A (en) | 2008-04-02 |
GB0721762D0 (en) | 2007-12-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20100408 |