IT1026419B - DARKENING CIRCUIT FOR HIGH INTENSITY LAMPS - Google Patents

DARKENING CIRCUIT FOR HIGH INTENSITY LAMPS

Info

Publication number
IT1026419B
IT1026419B IT47787/75A IT4778775A IT1026419B IT 1026419 B IT1026419 B IT 1026419B IT 47787/75 A IT47787/75 A IT 47787/75A IT 4778775 A IT4778775 A IT 4778775A IT 1026419 B IT1026419 B IT 1026419B
Authority
IT
Italy
Prior art keywords
high intensity
intensity lamps
darkening circuit
darkening
circuit
Prior art date
Application number
IT47787/75A
Other languages
Italian (it)
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 IT1026419B publication Critical patent/IT1026419B/en

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
    • H05B41/40—Controlling the intensity of light discontinuously
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S315/00—Electric lamp and discharge devices: systems
    • Y10S315/04—Dimming circuit for fluorescent lamps
IT47787/75A 1974-02-11 1975-01-22 DARKENING CIRCUIT FOR HIGH INTENSITY LAMPS IT1026419B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US441429A US3894265A (en) 1974-02-11 1974-02-11 High intensity lamp dimming circuit

Publications (1)

Publication Number Publication Date
IT1026419B true IT1026419B (en) 1978-09-20

Family

ID=23752836

Family Applications (1)

Application Number Title Priority Date Filing Date
IT47787/75A IT1026419B (en) 1974-02-11 1975-01-22 DARKENING CIRCUIT FOR HIGH INTENSITY LAMPS

Country Status (9)

Country Link
US (1) US3894265A (en)
BE (1) BE824338A (en)
BR (1) BR7410810D0 (en)
CA (1) CA1041160A (en)
DE (1) DE2505453A1 (en)
ES (1) ES433733A1 (en)
FR (1) FR2260920B1 (en)
GB (1) GB1477908A (en)
IT (1) IT1026419B (en)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991344A (en) * 1975-03-18 1976-11-09 Westinghouse Electric Corporation Solid-state dimmer for dual high pressure discharge lamps
US4009387A (en) * 1975-05-27 1977-02-22 Esquire, Inc. Automatic energy control lighting system with automatically variable dc source
US3989976A (en) * 1975-10-07 1976-11-02 Westinghouse Electric Corporation Solid-state hid lamp dimmer
US4197485A (en) * 1978-07-24 1980-04-08 Esquire, Inc. Optocoupler dimmer circuit for high intensity, gaseous discharge lamp
US4181873A (en) * 1978-08-04 1980-01-01 Esquire, Inc. High frequency dimmer circuit for high intensity, gaseous discharge lamp
US4220895A (en) * 1978-08-25 1980-09-02 Esquire, Inc. Non-interfering, overlapping high frequency signalling for lamp dimmer circuit
US4204141A (en) * 1978-09-11 1980-05-20 Esquire, Inc. Adjustable DC pulse circuit for variation over a predetermined range using two timer networks
US4170747A (en) * 1978-09-22 1979-10-09 Esquire, Inc. Fixed frequency, variable duty cycle, square wave dimmer for high intensity gaseous discharge lamp
FR2466935A1 (en) * 1979-10-05 1981-04-10 Oce Photosia Sa Fluorescent lamp control for reprographic machine - maintains lamps at half power between copies to increase lamp life and light output intensity
US4523129A (en) * 1981-07-27 1985-06-11 Cornell Dubilier Electronics Modular lighting control with circulating inductor
US4464610A (en) * 1981-07-27 1984-08-07 Cornell-Dubilier Corp. Modular lighting control with circulating inductor
US4463287A (en) * 1981-10-07 1984-07-31 Cornell-Dubilier Corp. Four lamp modular lighting control
AU8929682A (en) * 1982-01-11 1983-07-21 Cornell-Dubilier Electronics Inc. Magnetic ballast with thyristor control
JPS59180994A (en) * 1983-03-30 1984-10-15 東芝ライテック株式会社 Device for firing discharge lamp
EP0181666B1 (en) * 1984-11-06 1990-01-03 Koninklijke Philips Electronics N.V. High-pressure discharge lamp
US4999547A (en) * 1986-09-25 1991-03-12 Innovative Controls, Incorporated Ballast for high pressure sodium lamps having constant line and lamp wattage
US4797599A (en) * 1987-04-21 1989-01-10 Lutron Electronics Co., Inc. Power control circuit with phase controlled signal input
US5432407A (en) * 1990-12-26 1995-07-11 Motorola, Inc. Field emission device as charge transport switch for energy storage network
US5352958A (en) * 1992-11-19 1994-10-04 Cunningham David W Lighting control system dimmer module with plug-in electrical contacts
US5815067A (en) * 1997-05-19 1998-09-29 Thomas Lighting Single control wire device for HID dimming
EP1107651A3 (en) * 1999-12-10 2004-12-08 Otto Diez Elektromaschinenbau Device with a discharge lamp
US6577075B2 (en) * 2000-11-14 2003-06-10 Shafrir Romano High intensity discharge lamp magnetic/electronic ballast
US6703795B2 (en) * 2002-02-25 2004-03-09 Cooper Technologies Company Auxiliary controller
AUPS131202A0 (en) * 2002-03-25 2002-05-09 Clipsal Integrated Systems Pty Ltd Circuit arrangement for power control
US7139680B2 (en) * 2004-07-15 2006-11-21 Crydom Limited Apparatus and method for standby lighting
CA2612797A1 (en) * 2005-06-30 2007-01-11 Streetlight Intelligence, Inc. Method and system for controlling a luminaire
WO2007003036A1 (en) * 2005-06-30 2007-01-11 Streetlight Intelligence, Inc. Method and system for luminance characterization
US8433426B2 (en) 2005-06-30 2013-04-30 Led Roadway Lighting Ltd Adaptive energy performance monitoring and control system
US8290710B2 (en) * 2007-09-07 2012-10-16 Led Roadway Lighting Ltd. Streetlight monitoring and control
US8570190B2 (en) * 2007-09-07 2013-10-29 Led Roadway Lighting Ltd. Centralized route calculation for a multi-hop streetlight network
CN104777818A (en) * 2015-04-22 2015-07-15 国家电网公司 Illuminating system with function of demand response
US10630193B1 (en) 2019-03-05 2020-04-21 Ev Enterprises Isolated phase control power regulation circuit and system
CN109764633B (en) * 2019-03-06 2023-05-02 杭州华日家电有限公司 Control method for self-optimizing peak-staggering defrosting of frostless refrigerator

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3816794A (en) * 1972-03-28 1974-06-11 Esquire Inc High intensity, gas discharge lamp dimmer system

Also Published As

Publication number Publication date
ES433733A1 (en) 1977-02-16
BR7410810D0 (en) 1975-03-25
BE824338A (en) 1975-05-02
US3894265A (en) 1975-07-08
DE2505453A1 (en) 1975-08-14
FR2260920A1 (en) 1975-09-05
GB1477908A (en) 1977-06-29
FR2260920B1 (en) 1980-03-28
CA1041160A (en) 1978-10-24
AU7744575A (en) 1976-07-22

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