GB2303978B - Control of electromagnetic emissions - Google Patents

Control of electromagnetic emissions

Info

Publication number
GB2303978B
GB2303978B GB9515661A GB9515661A GB2303978B GB 2303978 B GB2303978 B GB 2303978B GB 9515661 A GB9515661 A GB 9515661A GB 9515661 A GB9515661 A GB 9515661A GB 2303978 B GB2303978 B GB 2303978B
Authority
GB
United Kingdom
Prior art keywords
control
electromagnetic emissions
emissions
electromagnetic
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 - Lifetime
Application number
GB9515661A
Other versions
GB2303978A (en
GB9515661D0 (en
Inventor
Mark James Charles Dale
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.)
JSB Electrical PLC
Original Assignee
JSB Electrical PLC
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 JSB Electrical PLC filed Critical JSB Electrical PLC
Priority to GB9515661A priority Critical patent/GB2303978B/en
Publication of GB9515661D0 publication Critical patent/GB9515661D0/en
Publication of GB2303978A publication Critical patent/GB2303978A/en
Application granted granted Critical
Publication of GB2303978B publication Critical patent/GB2303978B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/02—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which an auxiliary distribution system and its associated lamps are brought into service
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • 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

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Stand-By Power Supply Arrangements (AREA)
GB9515661A 1995-07-31 1995-07-31 Control of electromagnetic emissions Expired - Lifetime GB2303978B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9515661A GB2303978B (en) 1995-07-31 1995-07-31 Control of electromagnetic emissions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9515661A GB2303978B (en) 1995-07-31 1995-07-31 Control of electromagnetic emissions

Publications (3)

Publication Number Publication Date
GB9515661D0 GB9515661D0 (en) 1995-09-27
GB2303978A GB2303978A (en) 1997-03-05
GB2303978B true GB2303978B (en) 2000-01-12

Family

ID=10778534

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9515661A Expired - Lifetime GB2303978B (en) 1995-07-31 1995-07-31 Control of electromagnetic emissions

Country Status (1)

Country Link
GB (1) GB2303978B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO990423A1 (en) * 1999-07-28 2001-01-28 Bargellini & C Spa G EMERGENCY LIGHTING APPARATUS.
FI111323B (en) * 2001-07-04 2003-06-30 Teknoware Oy Safety light arrangement and safety light device
WO2011145104A1 (en) * 2010-04-27 2011-11-24 Abhishek Gupta Compact and voltage stable automatic change over switch

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1556980A (en) * 1977-02-03 1979-12-05 Maurer P Device for operating a discharge lamp such as a fluorescent lamp under emergency conditions
US4703192A (en) * 1983-12-22 1987-10-27 Control Technology, Inc. Alternating current power source with improved phase adjusting capability
US4727291A (en) * 1985-10-15 1988-02-23 Bavco Manufacturing Co. Back-up electrical system for lamps
US4946096A (en) * 1989-12-11 1990-08-07 Carrier Corporation Method and apparatus for operating a furnace from a 12V DC battery
EP0514171A1 (en) * 1991-05-17 1992-11-19 Best Power Technology, Inc. Back-up uninterruptible power system
GB2268008A (en) * 1991-02-22 1993-12-22 Moray James Campbell Switching system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1556980A (en) * 1977-02-03 1979-12-05 Maurer P Device for operating a discharge lamp such as a fluorescent lamp under emergency conditions
US4703192A (en) * 1983-12-22 1987-10-27 Control Technology, Inc. Alternating current power source with improved phase adjusting capability
US4727291A (en) * 1985-10-15 1988-02-23 Bavco Manufacturing Co. Back-up electrical system for lamps
US4946096A (en) * 1989-12-11 1990-08-07 Carrier Corporation Method and apparatus for operating a furnace from a 12V DC battery
GB2268008A (en) * 1991-02-22 1993-12-22 Moray James Campbell Switching system
EP0514171A1 (en) * 1991-05-17 1992-11-19 Best Power Technology, Inc. Back-up uninterruptible power system

Also Published As

Publication number Publication date
GB2303978A (en) 1997-03-05
GB9515661D0 (en) 1995-09-27

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Expiry date: 20150730