GB2388722B - Monitoring apparatus - Google Patents
Monitoring apparatusInfo
- Publication number
- GB2388722B GB2388722B GB0210974A GB0210974A GB2388722B GB 2388722 B GB2388722 B GB 2388722B GB 0210974 A GB0210974 A GB 0210974A GB 0210974 A GB0210974 A GB 0210974A GB 2388722 B GB2388722 B GB 2388722B
- Authority
- GB
- United Kingdom
- Prior art keywords
- monitoring apparatus
- monitoring
- 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
- 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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/20—Responsive to malfunctions or to light source life; for protection
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0210974A GB2388722B (en) | 2002-05-14 | 2002-05-14 | Monitoring apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0210974A GB2388722B (en) | 2002-05-14 | 2002-05-14 | Monitoring apparatus |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0210974D0 GB0210974D0 (en) | 2002-06-19 |
GB2388722A GB2388722A (en) | 2003-11-19 |
GB2388722B true GB2388722B (en) | 2005-09-14 |
Family
ID=9936604
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0210974A Expired - Fee Related GB2388722B (en) | 2002-05-14 | 2002-05-14 | Monitoring apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2388722B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014005669B4 (en) * | 2014-04-19 | 2017-10-26 | Iie Gmbh & Co. Kg | Apparatus and method for operating a light generator |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4330778A (en) * | 1979-03-13 | 1982-05-18 | Tokyo Shibaura Denki Kabushiki Kaisha | Device for detecting broken filaments in lamps |
US4473779A (en) * | 1982-05-26 | 1984-09-25 | Area Lighting Research, Inc. | Power factor measuring cut-off arrangement for and method of protecting a ballast-starter circuit from high pressure sodium lamp cycling malfunction |
US4810936A (en) * | 1986-12-01 | 1989-03-07 | Hubbell Incorporated | Failing lamp monitoring and deactivating circuit |
JPH01292797A (en) * | 1988-05-20 | 1989-11-27 | Hitachi Ltd | Fluorescent lamp lighting device |
US6002214A (en) * | 1997-02-12 | 1999-12-14 | International Rectifier Corporation | Phase detection control circuit for an electronic ballast |
EP1087645A2 (en) * | 1999-09-27 | 2001-03-28 | Teknoware Oy | Determining remaining operating life of fluorescent lamp |
-
2002
- 2002-05-14 GB GB0210974A patent/GB2388722B/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4330778A (en) * | 1979-03-13 | 1982-05-18 | Tokyo Shibaura Denki Kabushiki Kaisha | Device for detecting broken filaments in lamps |
US4473779A (en) * | 1982-05-26 | 1984-09-25 | Area Lighting Research, Inc. | Power factor measuring cut-off arrangement for and method of protecting a ballast-starter circuit from high pressure sodium lamp cycling malfunction |
US4810936A (en) * | 1986-12-01 | 1989-03-07 | Hubbell Incorporated | Failing lamp monitoring and deactivating circuit |
JPH01292797A (en) * | 1988-05-20 | 1989-11-27 | Hitachi Ltd | Fluorescent lamp lighting device |
US6002214A (en) * | 1997-02-12 | 1999-12-14 | International Rectifier Corporation | Phase detection control circuit for an electronic ballast |
EP1087645A2 (en) * | 1999-09-27 | 2001-03-28 | Teknoware Oy | Determining remaining operating life of fluorescent lamp |
Also Published As
Publication number | Publication date |
---|---|
GB0210974D0 (en) | 2002-06-19 |
GB2388722A (en) | 2003-11-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20150514 |