MX170570B - CIRCUIT TO PROVIDE AN OPERATING CURRENT TO A FLUORESCENT LAMP - Google Patents

CIRCUIT TO PROVIDE AN OPERATING CURRENT TO A FLUORESCENT LAMP

Info

Publication number
MX170570B
MX170570B MX1589589A MX1589589A MX170570B MX 170570 B MX170570 B MX 170570B MX 1589589 A MX1589589 A MX 1589589A MX 1589589 A MX1589589 A MX 1589589A MX 170570 B MX170570 B MX 170570B
Authority
MX
Mexico
Prior art keywords
circuit
lamp
energy
fluorescent lamp
operating current
Prior art date
Application number
MX1589589A
Other languages
Spanish (es)
Inventor
Andrew P Kisylia
Robert C Griffith
Original Assignee
Magnetek 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 Magnetek Inc filed Critical Magnetek Inc
Publication of MX170570B publication Critical patent/MX170570B/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
    • H05B41/36—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
    • 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
    • H05B41/16—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies
    • 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

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

La presente invención se refiere a un circuito para proporcionar corriente operativa a una lámpara fluorescente, caracterizado porque comprende: primeras terminales para acoplar el circuito a una fuente de energía de corriente alterna (CA) que tiene una frecuencia de energía de CA; terminales para acoplar eléctricamente el circuito con la lámpara; montajes para generar una señal de referencia periódica que tiene una frecuencia substancialmente mayor que la frecuencia de energía de CA; almacenadores de energía conmutable que responden a la señal de referencia para almacenar alternativamente energía de la fuente de energía durante un primer intervalo y descargar cuando menos algo de la energía en la lámpara durante un segundo intervalo; montajes que responden a fluctuaciones en el voltaje de energía CA para variar la proporción del primer y segundo intervalos, para mantener la magnitud de la corriente de lámpara, generalmente constante.The present invention relates to a circuit for supplying operating current to a fluorescent lamp, characterized in that it comprises: first terminals for coupling the circuit to an alternating current (AC) power source having an AC power frequency; terminals for electrically coupling the circuit with the lamp; assemblies to generate a periodic reference signal having a frequency substantially greater than the AC power frequency; switchable energy stores that respond to the reference signal to alternatively store energy from the energy source during a first interval and discharge at least some of the energy into the lamp during a second interval; assemblies that respond to fluctuations in the AC power voltage to vary the ratio of the first and second intervals, to keep the magnitude of the lamp current generally constant.

MX1589589A 1988-05-03 1989-05-02 CIRCUIT TO PROVIDE AN OPERATING CURRENT TO A FLUORESCENT LAMP MX170570B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18975388A 1988-05-03 1988-05-03

Publications (1)

Publication Number Publication Date
MX170570B true MX170570B (en) 1993-08-31

Family

ID=22698627

Family Applications (1)

Application Number Title Priority Date Filing Date
MX1589589A MX170570B (en) 1988-05-03 1989-05-02 CIRCUIT TO PROVIDE AN OPERATING CURRENT TO A FLUORESCENT LAMP

Country Status (5)

Country Link
JP (1) JPH0260097A (en)
DE (1) DE3914676A1 (en)
FR (1) FR2631508A1 (en)
GB (1) GB2219877A (en)
MX (1) MX170570B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2253077A (en) * 1991-01-23 1992-08-26 Carl Edmund Smith Power control system for gas discharge tubes
AT403865B (en) * 1991-07-10 1998-06-25 Fronius Schweissmasch VOLTAGE CONVERSION DEVICE FOR A DC VOLTAGE CONSUMER
US5831420A (en) * 1997-04-28 1998-11-03 Motorola, Inc. Pulse load averaging power converter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4251752A (en) * 1979-05-07 1981-02-17 Synergetics, Inc. Solid state electronic ballast system for fluorescent lamps
US4437146A (en) * 1982-08-09 1984-03-13 Pacific Electro Dynamics, Inc. Boost power supply having power factor correction circuit
ZA862614B (en) * 1986-04-08 1986-12-30 David John Cockram Controller for gas discharge lamps
US4677366A (en) * 1986-05-12 1987-06-30 Pioneer Research, Inc. Unity power factor power supply
GB8800527D0 (en) * 1988-01-11 1988-02-10 Farnell Instr Ltd Control arrangement for switched mode power supply

Also Published As

Publication number Publication date
JPH0260097A (en) 1990-02-28
DE3914676A1 (en) 1989-12-07
FR2631508A1 (en) 1989-11-17
GB8909818D0 (en) 1989-06-14
GB2219877A (en) 1989-12-20

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