CA939001A - Lighting control system - Google Patents

Lighting control system

Info

Publication number
CA939001A
CA939001A CA117181A CA117181A CA939001A CA 939001 A CA939001 A CA 939001A CA 117181 A CA117181 A CA 117181A CA 117181 A CA117181 A CA 117181A CA 939001 A CA939001 A CA 939001A
Authority
CA
Canada
Prior art keywords
control system
lighting control
lighting
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
Application number
CA117181A
Other versions
CA117181S (en
Inventor
C. Legg Brian
G. Cowie Eric
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.)
Westinghouse Canada Inc
Original Assignee
Westinghouse Canada Inc
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 Westinghouse Canada Inc filed Critical Westinghouse Canada Inc
Priority to CA117181A priority Critical patent/CA939001A/en
Priority to US00262122A priority patent/US3743921A/en
Application granted granted Critical
Publication of CA939001A publication Critical patent/CA939001A/en
Expired legal-status Critical Current

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
    • H05B39/041—Controlling the light-intensity of the source
    • 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
    • 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
    • G05F1/40—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices
    • G05F1/44—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only
    • G05F1/445—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only being transistors in series with the load
    • 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
    • H05B39/041—Controlling the light-intensity of the source
    • H05B39/044—Controlling the light-intensity of the source continuously
    • 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

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)
  • Control Of Electrical Variables (AREA)
CA117181A 1971-07-02 1971-07-02 Lighting control system Expired CA939001A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA117181A CA939001A (en) 1971-07-02 1971-07-02 Lighting control system
US00262122A US3743921A (en) 1971-07-02 1972-06-12 Tap changing current regulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA117181A CA939001A (en) 1971-07-02 1971-07-02 Lighting control system

Publications (1)

Publication Number Publication Date
CA939001A true CA939001A (en) 1973-12-25

Family

ID=4090203

Family Applications (1)

Application Number Title Priority Date Filing Date
CA117181A Expired CA939001A (en) 1971-07-02 1971-07-02 Lighting control system

Country Status (2)

Country Link
US (1) US3743921A (en)
CA (1) CA939001A (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5232625B2 (en) * 1973-03-29 1977-08-23
US3875554A (en) * 1973-05-08 1975-04-01 Westinghouse Electric Corp Elevator system having current limited and short circuit protected power supply for hall lamps
US4029993A (en) * 1975-12-18 1977-06-14 General Electric Company Two level inverter circuit
US4057842A (en) * 1976-01-28 1977-11-08 Borg-Warner Corporation Current regulation system for three-phase load
CA1055111A (en) * 1978-04-13 1979-05-22 Hydro-Quebec System for extracting energy from a capacitive source, with shunt switched regulation
GB2061034B (en) * 1979-10-05 1983-02-16 Victor Products Ltd Power supply systems
US4733158A (en) * 1986-08-21 1988-03-22 Datametrics Corporation Control circuit for tap-switching power supplies and multi-tap transformers
FR2618921B1 (en) * 1987-07-31 1989-12-08 Nicolas Jean Pierre POWER REGULATOR, ESPECIALLY FOR MARKING AIRPORTS
US5408171A (en) * 1991-10-21 1995-04-18 Electric Power Research Institute, Inc. Combined solid-state and mechanically-switched transformer tap-changer
US5289110A (en) * 1992-10-14 1994-02-22 Cooper Industries Input current responsive, tap changing transformer system
US5796216A (en) * 1993-07-16 1998-08-18 Delta Power Supply, Inc. Electronic ignition enhancing circuit having both fundamental and harmonic resonant circuits as well as a DC offset
US5642290A (en) * 1993-09-13 1997-06-24 Siemens Energy & Automation, Inc. Expansion chassis for a voltage regulator controller
GB9319470D0 (en) * 1993-09-21 1993-11-03 Nat Grid Comp Plc Electrical changeover switching
US5596263A (en) * 1993-12-01 1997-01-21 Siemens Energy & Automation, Inc. Electrical power distribution system apparatus-resident personality memory module
DE59403996D1 (en) * 1993-12-23 1997-10-09 Siemens Ag CONSTANT CURRENT REGULATOR WITH CLAMPING TRANSFORMER
US5550460A (en) * 1994-09-29 1996-08-27 Siemens Energy & Automation, Inc. Voltage regulator control system with multiple control programs
US5477113A (en) * 1994-09-30 1995-12-19 Toroid Hong Kong Limited Apparatus for applying a variable voltage to an electric load
US5825164A (en) * 1995-12-21 1998-10-20 Adb-Alnaco, Inc. Inductance controller with load regulator
US6124702A (en) * 1998-11-13 2000-09-26 Active Power, Inc. Step switch cycloconverter utilizing multi-tap armature
DE102012103490B4 (en) * 2012-04-20 2015-11-12 Maschinenfabrik Reinhausen Gmbh Distribution transformer for voltage regulation of local networks
DE102012105152B4 (en) * 2012-06-14 2015-11-12 Maschinenfabrik Reinhausen Gmbh On-load tap-changer for uninterrupted switching between different winding taps of a tapped transformer

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3061828A (en) * 1958-03-11 1962-10-30 Basic Products Corp Circuit means
US3375437A (en) * 1965-03-15 1968-03-26 Navy Usa Maintenance of power supply regulation during low-line transients
US3469176A (en) * 1966-05-27 1969-09-23 Sola Basic Ind Inc Constant current regulator
US3448371A (en) * 1966-08-31 1969-06-03 Us Navy Solid state constant current regulator
US3596172A (en) * 1969-06-27 1971-07-27 Lear Siegler Inc Buck-boost pulse-width-modulated line regulator
US3600664A (en) * 1970-01-20 1971-08-17 Gen Electric Overcurrent protection for solid-state voltage regulator
US3686557A (en) * 1970-08-26 1972-08-22 Fischer & Porter Co Floating-type electronic servo-motor process controller

Also Published As

Publication number Publication date
US3743921A (en) 1973-07-03

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