TWI305112B - - Google Patents

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Publication number
TWI305112B
TWI305112B TW091117507A TW91117507A TWI305112B TW I305112 B TWI305112 B TW I305112B TW 091117507 A TW091117507 A TW 091117507A TW 91117507 A TW91117507 A TW 91117507A TW I305112 B TWI305112 B TW I305112B
Authority
TW
Taiwan
Prior art keywords
voltage
control system
variable frequency
dimming control
fluorescent lamp
Prior art date
Application number
TW091117507A
Other languages
English (en)
Chinese (zh)
Inventor
San-Rong Li
Charles Chou
yu-qi Li
Original Assignee
Delta Electronics 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 Delta Electronics Inc filed Critical Delta Electronics Inc
Priority to TW091117507A priority Critical patent/TWI305112B/zh
Priority to US10/617,335 priority patent/US6936979B2/en
Application granted granted Critical
Publication of TWI305112B publication Critical patent/TWI305112B/zh

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
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • 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
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • H05B41/3925—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by frequency variation
    • 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

Landscapes

  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
TW091117507A 2002-08-02 2002-08-02 TWI305112B (enExample)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TW091117507A TWI305112B (enExample) 2002-08-02 2002-08-02
US10/617,335 US6936979B2 (en) 2002-08-02 2003-07-10 Frequency-modulated dimming control system of discharge lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW091117507A TWI305112B (enExample) 2002-08-02 2002-08-02

Publications (1)

Publication Number Publication Date
TWI305112B true TWI305112B (enExample) 2009-01-01

Family

ID=31185928

Family Applications (1)

Application Number Title Priority Date Filing Date
TW091117507A TWI305112B (enExample) 2002-08-02 2002-08-02

Country Status (2)

Country Link
US (1) US6936979B2 (enExample)
TW (1) TWI305112B (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070127179A1 (en) * 2005-12-05 2007-06-07 Ludjin William R Burnout protection switch
US20110279065A1 (en) * 2009-01-09 2011-11-17 Koninklijke Philips Electronics N.V. Mercury-free molecular discharge lamp
US8773037B2 (en) * 2010-02-01 2014-07-08 Empower Electronics, Inc. Ballast configured to compensate for lamp characteristic changes
JP6342412B2 (ja) 2012-11-26 2018-06-13 フィリップス ライティング ホールディング ビー ヴィ 電力グリッド負荷システムの信号レベル・ベースの制御
CN109496014B (zh) * 2018-12-12 2024-10-29 上海新进芯微电子有限公司 Led调光电路及led驱动系统

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3731142A (en) * 1971-08-20 1973-05-01 Lutron Electronics Co High-frequency fluorescent tube lighting circuit with isolating transformer
US3961236A (en) * 1975-02-07 1976-06-01 Xerox Corporation Constant power regulator for xerographic fusing system
US4251752A (en) * 1979-05-07 1981-02-17 Synergetics, Inc. Solid state electronic ballast system for fluorescent lamps
US4866350A (en) * 1988-04-04 1989-09-12 Usi Lighting, Inc. Fluorescent lamp system
US5068576A (en) * 1990-08-13 1991-11-26 Electronic Ballast Technology, Inc. Remote control of fluorescent lamp ballast using power flow interruption coding with means to maintain filament voltage substantially constant as the lamp voltage decreases
US5107184A (en) * 1990-08-13 1992-04-21 Electronic Ballast Technology, Inc. Remote control of fluorescent lamp ballast using power flow interruption coding with means to maintain filament voltage substantially constant as the lamp voltage decreases
US5055746A (en) * 1990-08-13 1991-10-08 Electronic Ballast Technology, Incorporated Remote control of fluorescent lamp ballast using power flow interruption coding with means to maintain filament voltage substantially constant as the lamp voltage decreases
US5404082A (en) * 1993-04-23 1995-04-04 North American Philips Corporation High frequency inverter with power-line-controlled frequency modulation
KR100208803B1 (ko) * 1995-11-10 1999-07-15 윤종용 전자 안정기 회로
US5801492A (en) * 1996-05-30 1998-09-01 Bobel; Andrzej Electronic ballast for gas discharge lamp having primary and auxiliary resonant circuits
KR100697726B1 (ko) * 2000-02-10 2007-03-21 페어차일드코리아반도체 주식회사 전자식 안정기를 구비한 램프 시스템
US6680585B2 (en) * 2001-12-17 2004-01-20 Osram Sylvania Inc. Method and apparatus for modulating HID ballast operating frequency using DC bus ripple voltage

Also Published As

Publication number Publication date
US20040021432A1 (en) 2004-02-05
US6936979B2 (en) 2005-08-30

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees