MX2010002197A - Circuito de proteccion de riesgo de explosion. - Google Patents

Circuito de proteccion de riesgo de explosion.

Info

Publication number
MX2010002197A
MX2010002197A MX2010002197A MX2010002197A MX2010002197A MX 2010002197 A MX2010002197 A MX 2010002197A MX 2010002197 A MX2010002197 A MX 2010002197A MX 2010002197 A MX2010002197 A MX 2010002197A MX 2010002197 A MX2010002197 A MX 2010002197A
Authority
MX
Mexico
Prior art keywords
ballast
lamp
ground
capacitor
voltage
Prior art date
Application number
MX2010002197A
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 MX2010002197A publication Critical patent/MX2010002197A/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
    • H05B41/285—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
    • 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
    • H05B41/2855—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
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/12—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to undesired approach to, or touching of, live parts by living beings

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

Se describe un circuito de protección de riesgo de explosión (ROS), el cual comprende un capacitor que carga cada vez que hay un voltaje entre la tierra en un balasto de lámpara y la tierra. Cuando el capacitor excede un voltaje umbral predeterminado, el capacitor provoca que una compuerta derive la corriente lejos del arrollamiento terciario en un circuito de control, que a su vez, reduce la impedancia reflejada por el arrollamiento terciario de regreso a los arrollamientos primario y secundario en el circuito de balasto. La impedancia reflejada reducida provoca que la frecuencia operativa del balasto se incremente, lo que reduce el voltaje entre la tierra del balasto y la tierra hasta que sea seguro para el contacto humano. De esta manera, una persona que reemplaza una lámpara conectada con el balasto puede queda protegida de explosión a pesar de no cortar la energía para el balasto de la lámpara antes del reemplazo de la lámpara.
MX2010002197A 2007-08-27 2008-06-26 Circuito de proteccion de riesgo de explosion. MX2010002197A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US96821907P 2007-08-27 2007-08-27
US12/141,444 US8018700B2 (en) 2007-08-27 2008-06-18 Risk of shock protection circuit
PCT/US2008/068256 WO2009029333A1 (en) 2007-08-27 2008-06-26 Risk of shock protection circuit

Publications (1)

Publication Number Publication Date
MX2010002197A true MX2010002197A (es) 2010-03-17

Family

ID=40019502

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2010002197A MX2010002197A (es) 2007-08-27 2008-06-26 Circuito de proteccion de riesgo de explosion.

Country Status (6)

Country Link
US (1) US8018700B2 (es)
EP (1) EP2186385A1 (es)
JP (1) JP5276664B2 (es)
CN (1) CN101796890B (es)
MX (1) MX2010002197A (es)
WO (1) WO2009029333A1 (es)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4276496A (en) 1978-06-13 1981-06-30 Arena Ochoa Guido Gas discharge lamp employing a pulse generator with a double stage amplification circuit
US4926096A (en) 1986-02-18 1990-05-15 Nilssen Ole K Shock-protected electronic ballast
JP3211245B2 (ja) * 1990-09-17 2001-09-25 東芝ライテック株式会社 放電ランプ点灯装置
JPH08317662A (ja) * 1995-05-19 1996-11-29 Tec Corp 電力変換装置
JP3797079B2 (ja) * 2000-09-06 2006-07-12 松下電工株式会社 放電灯点灯装置
US6998786B2 (en) 2004-02-04 2006-02-14 Yih-Fang Chiou Control circuit of electronic ballast for fluorescent lamp
US7045966B2 (en) * 2004-07-07 2006-05-16 Osram Sylvania Inc. Resonant inverter including feed back circuit having phase compensator and controller
US7348734B2 (en) 2005-06-30 2008-03-25 Osram Sylvania Inc. Method for protecting a ballast from an output ground-fault condition
US7733036B2 (en) * 2005-10-26 2010-06-08 Koninklijke Philips Electronics N.V. Method and circuit for driving gas discharge lamps using a single inverter
US7876060B2 (en) * 2008-06-10 2011-01-25 Osram Sylvania Inc. Multi-lamps instant start electronic ballast

Also Published As

Publication number Publication date
CN101796890A (zh) 2010-08-04
CN101796890B (zh) 2013-08-14
WO2009029333A1 (en) 2009-03-05
US8018700B2 (en) 2011-09-13
JP5276664B2 (ja) 2013-08-28
US20090059448A1 (en) 2009-03-05
JP2010538425A (ja) 2010-12-09
EP2186385A1 (en) 2010-05-19

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Legal Events

Date Code Title Description
FG Grant or registration