CA1130852A - Variable low frequency dimming for high intensity gaseous discharge lamps - Google Patents

Variable low frequency dimming for high intensity gaseous discharge lamps

Info

Publication number
CA1130852A
CA1130852A CA330,874A CA330874A CA1130852A CA 1130852 A CA1130852 A CA 1130852A CA 330874 A CA330874 A CA 330874A CA 1130852 A CA1130852 A CA 1130852A
Authority
CA
Canada
Prior art keywords
lamp
voltage
frequency
ballast
network
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
CA330,874A
Other languages
English (en)
French (fr)
Inventor
Eric L.H. Nuver
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.)
Esquire Inc
Original Assignee
Esquire 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 Esquire Inc filed Critical Esquire Inc
Application granted granted Critical
Publication of CA1130852A publication Critical patent/CA1130852A/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
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously

Landscapes

  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
CA330,874A 1978-08-25 1979-06-29 Variable low frequency dimming for high intensity gaseous discharge lamps Expired CA1130852A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US93688278A 1978-08-25 1978-08-25
US936,882 1978-08-25

Publications (1)

Publication Number Publication Date
CA1130852A true CA1130852A (en) 1982-08-31

Family

ID=25469192

Family Applications (1)

Application Number Title Priority Date Filing Date
CA330,874A Expired CA1130852A (en) 1978-08-25 1979-06-29 Variable low frequency dimming for high intensity gaseous discharge lamps

Country Status (9)

Country Link
AU (1) AU526724B2 (it)
BE (1) BE878227A (it)
CA (1) CA1130852A (it)
DE (1) DE2931794A1 (it)
ES (1) ES483620A1 (it)
FR (1) FR2434547A1 (it)
GB (1) GB2029134B (it)
IT (1) IT1117392B (it)
MX (1) MX147513A (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0098285B2 (en) * 1982-01-15 1993-11-03 Minitronics Pty. Ltd. Electronic high frequency controlled device for operating gas discharge lamps
US4843627A (en) * 1986-08-05 1989-06-27 Stebbins Russell T Circuit and method for providing a light energy response to an event in real time
DE19708187A1 (de) * 1997-02-28 1998-09-03 Uwe Unterwasser Electric Gmbh Anordnung und Verfahren zur Ansteuerung von Lampenschaltungen
GB2477507A (en) * 2010-02-03 2011-08-10 Emil Blumer Control of luminance of gas discharge lamp using variable frequency drive

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB720279A (en) * 1951-08-09 1954-12-15 Gen Electric Co Ltd Improvements in or relating to circuits for operating electric discharge lamps
GB955656A (en) * 1959-05-19 1964-04-15 A E I Lamp And Lighting Compan Operation of electric discharge lamps
US3836815A (en) * 1972-05-24 1974-09-17 Gen Electric Emergency instant-start lighting system for arc discharge devices

Also Published As

Publication number Publication date
GB2029134B (en) 1982-11-03
IT1117392B (it) 1986-02-17
ES483620A1 (es) 1980-04-01
GB2029134A (en) 1980-03-12
IT7949748A0 (it) 1979-07-13
DE2931794A1 (de) 1980-03-06
AU526724B2 (en) 1983-01-27
AU5008979A (en) 1980-02-28
MX147513A (es) 1982-12-10
FR2434547A1 (fr) 1980-03-21
BE878227A (fr) 1979-12-03

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Legal Events

Date Code Title Description
MKEX Expiry