WO2011107902A3 - Fluorescent lamp information detection system and method - Google Patents

Fluorescent lamp information detection system and method Download PDF

Info

Publication number
WO2011107902A3
WO2011107902A3 PCT/IB2011/050751 IB2011050751W WO2011107902A3 WO 2011107902 A3 WO2011107902 A3 WO 2011107902A3 IB 2011050751 W IB2011050751 W IB 2011050751W WO 2011107902 A3 WO2011107902 A3 WO 2011107902A3
Authority
WO
WIPO (PCT)
Prior art keywords
resistance
information detection
lamp information
detection system
operably connected
Prior art date
Application number
PCT/IB2011/050751
Other languages
French (fr)
Other versions
WO2011107902A2 (en
Inventor
Yuhong Fang
Guangyi Luo
George Grouev
Kaifeng Gu
Original Assignee
Koninklijke Philips Electronics N.V.
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 Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Publication of WO2011107902A2 publication Critical patent/WO2011107902A2/en
Publication of WO2011107902A3 publication Critical patent/WO2011107902A3/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
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/295—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps
    • H05B41/298—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2981—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
    • H05B41/2985—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions against abnormal lamp operating conditions
    • 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
    • H05B41/24—Circuit arrangements in which the lamp is fed by high frequency ac, or with separate oscillator frequency
    • H05B41/245—Circuit arrangements in which the lamp is fed by high frequency ac, or with separate oscillator frequency for a plurality of lamps
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
    • H02M1/008—Plural converter units for generating at two or more independent and non-parallel outputs, e.g. systems with plural point of load switching regulators

Abstract

A fluorescent lamp information detection system and method including an information detection system for fluorescent lamps, the system including inverters (120), each of the inverters (120) being operably connected across the high end filament of one of the fluorescent lamps; a controller (130) responsive to a lamp information signal (142) to determine a lamp condition of each of the fluorescent lamps; and lamp information detection circuits (140). Each of the lamp information detection circuits (140) includes a series resistance circuit operably connected between a DC voltage and ground, the series resistance circuit operably connecting in series a first resistance, the high end filament, a second resistance, and a third resistance; a capacitance operably connected in parallel with the third resistance; and a voltage tap operably connected between the second resistance and the third resistance, the voltage tap providing the lamp information signal (142).
PCT/IB2011/050751 2010-03-01 2011-02-23 Fluorescent lamp information detection system and method WO2011107902A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US30910310P 2010-03-01 2010-03-01
US61/309,103 2010-03-01

Publications (2)

Publication Number Publication Date
WO2011107902A2 WO2011107902A2 (en) 2011-09-09
WO2011107902A3 true WO2011107902A3 (en) 2011-12-08

Family

ID=44351425

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2011/050751 WO2011107902A2 (en) 2010-03-01 2011-02-23 Fluorescent lamp information detection system and method

Country Status (1)

Country Link
WO (1) WO2011107902A2 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5493180A (en) * 1995-03-31 1996-02-20 Energy Savings, Inc., A Delaware Corporation Lamp protective, electronic ballast
US5883473A (en) * 1997-12-03 1999-03-16 Motorola Inc. Electronic Ballast with inverter protection circuit
US20040125071A1 (en) * 2002-12-26 2004-07-01 Lg.Philips Lcd Co., Ltd. Inverter device, liquid crystal display device using the inverter device, and method of monitoring lamps of the liquid crystal display device using the inverter device
US20070159117A1 (en) * 2006-01-06 2007-07-12 Chuntex Electronic Co., Ltd. Backlight module control circuit of multi-lamp display device
US7372214B2 (en) * 2003-12-16 2008-05-13 Lg. Philips Lcd Co., Ltd Apparatus and method for driving lamp of liquid crystal display device
WO2011007283A2 (en) * 2009-07-16 2011-01-20 Koninklijke Philips Electronics, N.V. Electronic ballast and startup method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5493180A (en) * 1995-03-31 1996-02-20 Energy Savings, Inc., A Delaware Corporation Lamp protective, electronic ballast
US5883473A (en) * 1997-12-03 1999-03-16 Motorola Inc. Electronic Ballast with inverter protection circuit
US20040125071A1 (en) * 2002-12-26 2004-07-01 Lg.Philips Lcd Co., Ltd. Inverter device, liquid crystal display device using the inverter device, and method of monitoring lamps of the liquid crystal display device using the inverter device
US7372214B2 (en) * 2003-12-16 2008-05-13 Lg. Philips Lcd Co., Ltd Apparatus and method for driving lamp of liquid crystal display device
US20070159117A1 (en) * 2006-01-06 2007-07-12 Chuntex Electronic Co., Ltd. Backlight module control circuit of multi-lamp display device
WO2011007283A2 (en) * 2009-07-16 2011-01-20 Koninklijke Philips Electronics, N.V. Electronic ballast and startup method

Also Published As

Publication number Publication date
WO2011107902A2 (en) 2011-09-09

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