WO2009015148A3 - Dimming system powered by two current sources and having an operation indicator module - Google Patents

Dimming system powered by two current sources and having an operation indicator module Download PDF

Info

Publication number
WO2009015148A3
WO2009015148A3 PCT/US2008/070774 US2008070774W WO2009015148A3 WO 2009015148 A3 WO2009015148 A3 WO 2009015148A3 US 2008070774 W US2008070774 W US 2008070774W WO 2009015148 A3 WO2009015148 A3 WO 2009015148A3
Authority
WO
WIPO (PCT)
Prior art keywords
dimming system
conductive line
connects
power supply
current sources
Prior art date
Application number
PCT/US2008/070774
Other languages
French (fr)
Other versions
WO2009015148A2 (en
Inventor
Michael Ostrovsky
Parimal R Patel
Eugene Frid
Original Assignee
Leviton Manufacturing Co
Michael Ostrovsky
Parimal R Patel
Eugene Frid
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
Priority claimed from US11/927,093 external-priority patent/US7804255B2/en
Application filed by Leviton Manufacturing Co, Michael Ostrovsky, Parimal R Patel, Eugene Frid filed Critical Leviton Manufacturing Co
Publication of WO2009015148A2 publication Critical patent/WO2009015148A2/en
Publication of WO2009015148A3 publication Critical patent/WO2009015148A3/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
    • 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
    • H05B39/048—Controlling the light-intensity of the source continuously with reverse phase control
    • 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
    • H05B39/08—Controlling by shifting phase of trigger voltage applied to gas-filled controlling tubes also in controlled semiconductor devices
    • 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

Abstract

A dimming system and method of operating the same are provided. The dimming system includes a first terminal which connects to a first conductive line, a second terminal which connects to a second conductive line, and a third terminal which connects to a third conductive line. The first conductive line connects to a load, the second conductive line supplies an alternating current, and the third conductive line connects to a current path. The dimming system further includes a controller connected to at least one of the first, second and third terminals for controlling operation of the dimming system. The first and second terminals are electrically connected to a primary power supply and the first and third terminals are electrically connected to a secondary power supply. The primary power supply is powered through connection to neutral, and wherein the secondary power supply is powered through connection to an earth ground.
PCT/US2008/070774 2007-07-26 2008-07-22 Dimming system powered by two current sources and having an operation indicator module WO2009015148A2 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US96208007P 2007-07-26 2007-07-26
US60/962,080 2007-07-26
US11/927,093 US7804255B2 (en) 2007-07-26 2007-10-29 Dimming system powered by two current sources and having an operation indicator module
US11/927,059 2007-10-29
US11/927,093 2007-10-29
US11/927,059 US7834560B2 (en) 2007-07-26 2007-10-29 Dimming system powered by two current sources and having an operation indicator module

Publications (2)

Publication Number Publication Date
WO2009015148A2 WO2009015148A2 (en) 2009-01-29
WO2009015148A3 true WO2009015148A3 (en) 2009-05-07

Family

ID=40282122

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/070774 WO2009015148A2 (en) 2007-07-26 2008-07-22 Dimming system powered by two current sources and having an operation indicator module

Country Status (1)

Country Link
WO (1) WO2009015148A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9812969B2 (en) 2014-11-26 2017-11-07 Leviton Manufacturing Co., Inc. Ground leakage power supply for dimming applications

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5323088A (en) * 1991-09-13 1994-06-21 Gregory Esakoff Dimming control circuit
US5757145A (en) * 1994-06-10 1998-05-26 Beacon Light Products, Inc. Dimming control system and method for a fluorescent lamp
US5949197A (en) * 1997-06-30 1999-09-07 Everbrite, Inc. Apparatus and method for dimming a gas discharge lamp

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5323088A (en) * 1991-09-13 1994-06-21 Gregory Esakoff Dimming control circuit
US5757145A (en) * 1994-06-10 1998-05-26 Beacon Light Products, Inc. Dimming control system and method for a fluorescent lamp
US5949197A (en) * 1997-06-30 1999-09-07 Everbrite, Inc. Apparatus and method for dimming a gas discharge lamp

Also Published As

Publication number Publication date
WO2009015148A2 (en) 2009-01-29

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