MX2010002332A - Doblado hacia atrás térmico para balastos de lampara florescente lineal. - Google Patents

Doblado hacia atrás térmico para balastos de lampara florescente lineal.

Info

Publication number
MX2010002332A
MX2010002332A MX2010002332A MX2010002332A MX2010002332A MX 2010002332 A MX2010002332 A MX 2010002332A MX 2010002332 A MX2010002332 A MX 2010002332A MX 2010002332 A MX2010002332 A MX 2010002332A MX 2010002332 A MX2010002332 A MX 2010002332A
Authority
MX
Mexico
Prior art keywords
temperature
inverter circuit
ferrite core
circuit
control circuit
Prior art date
Application number
MX2010002332A
Other languages
English (en)
Inventor
Louis Robert Nerone
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of MX2010002332A publication Critical patent/MX2010002332A/es

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
    • H05B41/282—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
    • H05B41/2825—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 by means of a bridge converter in the final stage
    • H05B41/2827—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 by means of a bridge converter in the final stage using specially adapted components in the load circuit, e.g. feed-back transformers, piezoelectric transformers; using specially adapted load circuit configurations
    • 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
    • H05B41/282—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
    • H05B41/285—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2851—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

Un circuito (6) de balasto que proporciona la protección térmica para una lámpara fluorescente, el cual incluye un transformador de acoplamiento que acopla un circuito (8) inversor con un circuito de control. Un primer y segundo arrollamientos (68, 70) del transformador en el circuito inversor y un tercer arrollamiento del transformador en el circuito de control, están enrollados alrededor de un núcleo común de ferrita. El núcleo de ferrita tiene una temperatura Curie que se aproxima a una temperatura umbral máxima permisible para la lámpara. Cuando la temperatura del balasto se aproxima a la temperatura Curie del núcleo de ferrita, su permeabilidad y su inductancia decaen dramáticamente, lo que provoca un incremento en la frecuencia operativa en el circuito inversor. Esta frecuencia operativa incrementada provoca que un capacitor en el circuito de control se cargue a un voltaje umbral, en el cual la energía para el circuito inversor se reduce. La lámpara entonces se atenúa sin apagarse hasta que la temperatura se reduce a un nivel aceptable.
MX2010002332A 2007-08-27 2008-06-30 Doblado hacia atrás térmico para balastos de lampara florescente lineal. MX2010002332A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US96821107P 2007-08-27 2007-08-27
US12/141,545 US7817453B2 (en) 2007-08-27 2008-06-18 Thermal foldback for linear fluorescent lamp ballasts
PCT/US2008/068751 WO2009029334A2 (en) 2007-08-27 2008-06-30 Thermal foldback for linear fluorescent lamp ballasts

Publications (1)

Publication Number Publication Date
MX2010002332A true MX2010002332A (es) 2010-03-22

Family

ID=39928263

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2010002332A MX2010002332A (es) 2007-08-27 2008-06-30 Doblado hacia atrás térmico para balastos de lampara florescente lineal.

Country Status (6)

Country Link
US (1) US7817453B2 (es)
EP (1) EP2196069A2 (es)
JP (1) JP5378382B2 (es)
CN (1) CN101796889B (es)
MX (1) MX2010002332A (es)
WO (1) WO2009029334A2 (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8198882B2 (en) * 2009-05-21 2012-06-12 Hungkuang University Power converting device with high power transformation efficiency
US8164293B2 (en) 2009-09-08 2012-04-24 Hoffman Enclosures, Inc. Method of controlling a motor
US8297369B2 (en) * 2009-09-08 2012-10-30 Sta-Rite Industries, Llc Fire-extinguishing system with servo motor-driven foam pump
US20110056707A1 (en) * 2009-09-08 2011-03-10 Jonathan Gamble Fire-Extinguishing System and Method for Operating Servo Motor-Driven Foam Pump
US8183810B2 (en) 2009-09-08 2012-05-22 Hoffman Enclosures, Inc. Method of operating a motor
WO2011073829A1 (en) * 2009-12-15 2011-06-23 Koninklijke Philips Electronics N.V. Electronic ballast with power thermal cutback
CN103781265A (zh) 2012-10-19 2014-05-07 通用电气公司 具有温度补偿的镇流器
US9265119B2 (en) 2013-06-17 2016-02-16 Terralux, Inc. Systems and methods for providing thermal fold-back to LED lights
US9906213B2 (en) 2015-11-06 2018-02-27 Globalfoundries Inc. Reducing thermal runaway in inverter devices

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6386395A (ja) * 1986-09-30 1988-04-16 東芝ライテック株式会社 放電灯点灯装置
JP2795872B2 (ja) * 1989-02-17 1998-09-10 株式会社テック 放電灯点灯装置
US5982106A (en) * 1992-02-24 1999-11-09 Bobel; Andrzej Self-protected series resonant electronic energy converter
CN2127813Y (zh) * 1992-07-24 1993-03-03 长沙水利电力师范学院科技开发服务部 具有过热保护电路的荧光灯电子镇流器
JPH07274524A (ja) * 1994-03-29 1995-10-20 Toshiba Lighting & Technol Corp 電源装置、放電灯点灯装置および照明装置
CA2124370C (en) * 1994-05-26 1998-09-29 Ivan Meszlenyi Self oscillating dc to dc converter
FI101186B (fi) 1996-12-16 1998-04-30 Helvar Oy Lämpösuojapiirillä varustettu elektroninen liitäntälaite
DE102005025154A1 (de) 2005-06-01 2006-12-07 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Schaltungsanordnung zum Betrieb einer Entladungslampe mit Temperaturausgleich
JP2007173384A (ja) * 2005-12-20 2007-07-05 Jfe Ferrite Corp 平面磁気素子
US7436124B2 (en) * 2006-01-31 2008-10-14 General Electric Company Voltage fed inverter for fluorescent lamps
US7274574B1 (en) * 2006-05-15 2007-09-25 Biegel George E Magnetically controlled transformer apparatus for controlling power delivered to a load with current transformer feedback

Also Published As

Publication number Publication date
WO2009029334A2 (en) 2009-03-05
CN101796889A (zh) 2010-08-04
US7817453B2 (en) 2010-10-19
JP2010538426A (ja) 2010-12-09
JP5378382B2 (ja) 2013-12-25
CN101796889B (zh) 2015-01-28
EP2196069A2 (en) 2010-06-16
WO2009029334A3 (en) 2009-05-14
US20090058302A1 (en) 2009-03-05

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