GB2430277B - Methods and apparatus for constant-current regulation - Google Patents

Methods and apparatus for constant-current regulation

Info

Publication number
GB2430277B
GB2430277B GB0618426A GB0618426A GB2430277B GB 2430277 B GB2430277 B GB 2430277B GB 0618426 A GB0618426 A GB 0618426A GB 0618426 A GB0618426 A GB 0618426A GB 2430277 B GB2430277 B GB 2430277B
Authority
GB
United Kingdom
Prior art keywords
constant
methods
current regulation
regulation
current
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
Application number
GB0618426A
Other versions
GB0618426D0 (en
GB2430277A (en
Inventor
Malcolm George Langford
Clive Anthony Wallace
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.)
TRANSCOIL Ltd
Original Assignee
TRANSCOIL Ltd
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 TRANSCOIL Ltd filed Critical TRANSCOIL Ltd
Publication of GB0618426D0 publication Critical patent/GB0618426D0/en
Publication of GB2430277A publication Critical patent/GB2430277A/en
Application granted granted Critical
Publication of GB2430277B publication Critical patent/GB2430277B/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
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/04—Controlling
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
    • G05F1/14—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
    • G05F1/14—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices
    • G05F1/16—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices combined with discharge tubes or semiconductor devices
    • G05F1/20—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices combined with discharge tubes or semiconductor devices semiconductor devices only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P13/00—Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output
    • H02P13/06—Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output by tap-changing; by rearranging interconnections of windings

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
GB0618426A 2005-09-19 2006-09-19 Methods and apparatus for constant-current regulation Expired - Fee Related GB2430277B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0519101.0A GB0519101D0 (en) 2005-09-19 2005-09-19 Methods and apparatus for constant-current regulation

Publications (3)

Publication Number Publication Date
GB0618426D0 GB0618426D0 (en) 2006-11-01
GB2430277A GB2430277A (en) 2007-03-21
GB2430277B true GB2430277B (en) 2007-10-17

Family

ID=35249039

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0519101.0A Ceased GB0519101D0 (en) 2005-09-19 2005-09-19 Methods and apparatus for constant-current regulation
GB0618426A Expired - Fee Related GB2430277B (en) 2005-09-19 2006-09-19 Methods and apparatus for constant-current regulation

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0519101.0A Ceased GB0519101D0 (en) 2005-09-19 2005-09-19 Methods and apparatus for constant-current regulation

Country Status (2)

Country Link
GB (2) GB0519101D0 (en)
WO (1) WO2007034165A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9554444B2 (en) 2012-12-17 2017-01-24 OV20 Systems Device and method for retrofitting or converting or adapting series circuits

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58175813A (en) * 1982-04-09 1983-10-15 Toshiba Corp On-load tap changer
SU1412909A1 (en) * 1986-08-15 1988-07-30 Предприятие П/Я А-7359 Method of selecting resistance welding duty

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5289110A (en) * 1992-10-14 1994-02-22 Cooper Industries Input current responsive, tap changing transformer system
WO1995017707A1 (en) * 1993-12-23 1995-06-29 Siemens Aktiengesellschaft Current stabiliser with step-up transformer
US20050030192A1 (en) * 2003-08-08 2005-02-10 Weaver James T. Power supply for LED airfield lighting
GB2406977A (en) * 2003-10-04 2005-04-13 Alstom Airfield lighting system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58175813A (en) * 1982-04-09 1983-10-15 Toshiba Corp On-load tap changer
SU1412909A1 (en) * 1986-08-15 1988-07-30 Предприятие П/Я А-7359 Method of selecting resistance welding duty

Also Published As

Publication number Publication date
GB0618426D0 (en) 2006-11-01
GB2430277A (en) 2007-03-21
GB0519101D0 (en) 2005-10-26
WO2007034165A1 (en) 2007-03-29

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Legal Events

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

Effective date: 20100919