CA2214226A1 - Lamp protective, electronic ballast - Google Patents

Lamp protective, electronic ballast

Info

Publication number
CA2214226A1
CA2214226A1 CA002214226A CA2214226A CA2214226A1 CA 2214226 A1 CA2214226 A1 CA 2214226A1 CA 002214226 A CA002214226 A CA 002214226A CA 2214226 A CA2214226 A CA 2214226A CA 2214226 A1 CA2214226 A1 CA 2214226A1
Authority
CA
Canada
Prior art keywords
lamp
electronic ballast
voltage
lamp protective
resistor
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.)
Granted
Application number
CA002214226A
Other languages
French (fr)
Other versions
CA2214226C (en
Inventor
Peter W. Shackle
Randy G. Russell
Ronald J. Bezdon
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.)
Universal Lighting Technologies Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2214226A1 publication Critical patent/CA2214226A1/en
Application granted granted Critical
Publication of CA2214226C publication Critical patent/CA2214226C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H05B41/02—Details
    • 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

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

A lamp protective, electronic ballast includes a lamp voltage detector having a capacitor (112, 145, 165) and resistor (110, 142, 163) series connected across a discharge lamp (73). The junction of the resistor and capacitor is coupled to a voltage sensitive switch (114, 147, Q8/Q12) for detecting DC
offset on the lamp and excessive AC voltage on the lamp. The switch is more sensitive to DC offset than to excessive AC voltage and is disabled while the lamp is started.
CA002214226A 1995-03-31 1996-03-29 Lamp protective, electronic ballast Expired - Fee Related CA2214226C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/416,022 1995-03-31
US08/416,022 US5493180A (en) 1995-03-31 1995-03-31 Lamp protective, electronic ballast
PCT/US1996/004391 WO1996031093A1 (en) 1995-03-31 1996-03-29 Lamp protective, electronic ballast

Publications (2)

Publication Number Publication Date
CA2214226A1 true CA2214226A1 (en) 1996-10-03
CA2214226C CA2214226C (en) 2002-08-06

Family

ID=23648201

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002214226A Expired - Fee Related CA2214226C (en) 1995-03-31 1996-03-29 Lamp protective, electronic ballast

Country Status (6)

Country Link
US (1) US5493180A (en)
EP (1) EP0818127A4 (en)
JP (1) JPH11503266A (en)
KR (1) KR19980703398A (en)
CA (1) CA2214226C (en)
WO (1) WO1996031093A1 (en)

Families Citing this family (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5635799A (en) * 1996-05-10 1997-06-03 Magnetek Lamp protection circuit for electronic ballasts
US5808422A (en) * 1996-05-10 1998-09-15 Philips Electronics North America Lamp ballast with lamp rectification detection circuitry
EP0843505A1 (en) * 1996-11-19 1998-05-20 Siemens Aktiengesellschaft Electronic ballast for at least one discharge lamp
US6011362A (en) * 1996-11-19 2000-01-04 Electro-Mag International, Inc. Magnetic ballast adaptor circuit
US6222322B1 (en) * 1997-09-08 2001-04-24 Q Technology Incorporated Ballast with lamp abnormal sensor and method therefor
US6111368A (en) * 1997-09-26 2000-08-29 Lutron Electronics Co., Inc. System for preventing oscillations in a fluorescent lamp ballast
US6020688A (en) * 1997-10-10 2000-02-01 Electro-Mag International, Inc. Converter/inverter full bridge ballast circuit
US5877926A (en) * 1997-10-10 1999-03-02 Moisin; Mihail S. Common mode ground fault signal detection circuit
US6188553B1 (en) 1997-10-10 2001-02-13 Electro-Mag International Ground fault protection circuit
US5925990A (en) * 1997-12-19 1999-07-20 Energy Savings, Inc. Microprocessor controlled electronic ballast
JP3736171B2 (en) * 1998-03-31 2006-01-18 東芝ライテック株式会社 Light bulb shaped fluorescent lamp and lighting fixture
US6069455A (en) * 1998-04-15 2000-05-30 Electro-Mag International, Inc. Ballast having a selectively resonant circuit
US6091288A (en) * 1998-05-06 2000-07-18 Electro-Mag International, Inc. Inverter circuit with avalanche current prevention
US6100645A (en) * 1998-06-23 2000-08-08 Electro-Mag International, Inc. Ballast having a reactive feedback circuit
US6028399A (en) * 1998-06-23 2000-02-22 Electro-Mag International, Inc. Ballast circuit with a capacitive and inductive feedback path
US6160358A (en) * 1998-09-03 2000-12-12 Electro-Mag International, Inc. Ballast circuit with lamp current regulating circuit
US6107750A (en) * 1998-09-03 2000-08-22 Electro-Mag International, Inc. Converter/inverter circuit having a single switching element
US6181082B1 (en) 1998-10-15 2001-01-30 Electro-Mag International, Inc. Ballast power control circuit
US6222326B1 (en) 1998-10-16 2001-04-24 Electro-Mag International, Inc. Ballast circuit with independent lamp control
US6127786A (en) * 1998-10-16 2000-10-03 Electro-Mag International, Inc. Ballast having a lamp end of life circuit
US6181083B1 (en) 1998-10-16 2001-01-30 Electro-Mag, International, Inc. Ballast circuit with controlled strike/restart
US6137233A (en) * 1998-10-16 2000-10-24 Electro-Mag International, Inc. Ballast circuit with independent lamp control
US6169375B1 (en) 1998-10-16 2001-01-02 Electro-Mag International, Inc. Lamp adaptable ballast circuit
US6100648A (en) * 1999-04-30 2000-08-08 Electro-Mag International, Inc. Ballast having a resonant feedback circuit for linear diode operation
US6366032B1 (en) 2000-01-28 2002-04-02 Robertson Worldwide, Inc. Fluorescent lamp ballast with integrated circuit
US6388397B1 (en) * 2000-04-20 2002-05-14 Matsushita Electric Works, Ltd. Discharge lamp lighting device
JP3797079B2 (en) * 2000-09-06 2006-07-12 松下電工株式会社 Discharge lamp lighting device
DE10046443A1 (en) * 2000-09-18 2002-03-28 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Electronic circuit for the detection of the change in gas discharge lamps
DE10209619A1 (en) * 2002-03-05 2003-09-25 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Operating circuit for discharge lamp with EOL early detection
CN100356820C (en) * 2002-12-25 2007-12-19 飞宏电子（上海）有限公司 Fluorescent light life stop protective circuit
US7372210B2 (en) * 2003-10-01 2008-05-13 Snap-On Incorporated Method and apparatus for lamp heat control
US7015652B2 (en) * 2003-10-17 2006-03-21 Universal Lighting Technologies, Inc. Electronic ballast having end of lamp life, overheating, and shut down protections, and reignition and multiple striking capabilities
US7109668B2 (en) * 2003-10-30 2006-09-19 I.E.P.C. Corp. Electronic lighting ballast
MXPA04012082A (en) * 2003-12-03 2005-07-01 Universal Lighting Tech Inc Electronic ballast with adaptive lamp preheat and ignition.
MXPA04012080A (en) * 2003-12-03 2005-07-01 Universal Lighting Tech Inc Lossless circuit for sampling of lamp voltage.
MXPA04012083A (en) * 2003-12-03 2005-07-01 Universal Lighting Tech Inc Ic-based low cost reliable electronic ballast ith multiple striking attempts and end of lamp life protection.
MXPA04012081A (en) * 2003-12-03 2005-07-01 Universal Lighting Tech Inc High efficiency 4-lamp instant start ballast.
DE102004028798A1 (en) * 2004-06-15 2006-01-05 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Circuit with switch-off device for operation of light sources
US20070194721A1 (en) * 2004-08-20 2007-08-23 Vatche Vorperian Electronic lighting ballast with multiple outputs to drive electric discharge lamps of different wattage
US8324812B2 (en) * 2009-03-24 2012-12-04 General Electric Company Protecting ballast circuitry against miswiring
US8482213B1 (en) 2009-06-29 2013-07-09 Panasonic Corporation Electronic ballast with pulse detection circuit for lamp end of life and output short protection
US8952617B2 (en) * 2009-11-03 2015-02-10 City University Of Hong Kong Passive LC ballast and method of manufacturing a passive LC ballast
WO2011107902A2 (en) * 2010-03-01 2011-09-09 Koninklijke Philips Electronics N.V. Fluorescent lamp information detection system and method
US9301375B2 (en) 2011-04-29 2016-03-29 Osram Sylvania Inc. Multiple strike ballast with lamp protection for electrodeless lamp
WO2012149561A2 (en) * 2011-04-29 2012-11-01 Osram Sylvania Inc. Multiple strike ballast for electrodeless lamp
US8947020B1 (en) 2011-11-17 2015-02-03 Universal Lighting Technologies, Inc. End of life control for parallel lamp ballast

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5214355A (en) * 1978-03-20 1993-05-25 Nilssen Ole K Instant-start electronic ballast
US4562383A (en) * 1981-07-31 1985-12-31 Siemens Aktiengesellschaft Converter
US4893059A (en) * 1986-02-19 1990-01-09 Nilssen Ole K Electronic ballast with safety feature
US4513226A (en) * 1983-03-04 1985-04-23 Astec Components, Ltd. Electronic ballast-inverter circuit
US5101140A (en) * 1989-11-29 1992-03-31 Gte Products Corporation High-pass T-networks with integral transformer for gaseous discharge lamps
US5099407A (en) * 1990-09-24 1992-03-24 Thorne Richard L Inverter with power factor correction circuit
US5394062A (en) * 1993-12-15 1995-02-28 General Electric Company Lamp ballast circuit with overload detection and ballast operability indication features

Also Published As

Publication number Publication date
WO1996031093A1 (en) 1996-10-03
EP0818127A1 (en) 1998-01-14
EP0818127A4 (en) 1998-09-09
US5493180A (en) 1996-02-20
JPH11503266A (en) 1999-03-23
KR19980703398A (en) 1998-11-05
CA2214226C (en) 2002-08-06

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