EP0587923A1 - Système d'alimentation à haute fréquence et courant constant - Google Patents

Système d'alimentation à haute fréquence et courant constant Download PDF

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Publication number
EP0587923A1
EP0587923A1 EP92115671A EP92115671A EP0587923A1 EP 0587923 A1 EP0587923 A1 EP 0587923A1 EP 92115671 A EP92115671 A EP 92115671A EP 92115671 A EP92115671 A EP 92115671A EP 0587923 A1 EP0587923 A1 EP 0587923A1
Authority
EP
European Patent Office
Prior art keywords
current
frequency constant
core
power supply
magnetic resistance
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.)
Withdrawn
Application number
EP92115671A
Other languages
German (de)
English (en)
Inventor
Joji Owase
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.)
Urd Co Ltd
Original Assignee
Urd Co Ltd
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 Urd Co Ltd filed Critical Urd Co Ltd
Priority to EP92115671A priority Critical patent/EP0587923A1/fr
Publication of EP0587923A1 publication Critical patent/EP0587923A1/fr
Withdrawn legal-status Critical Current

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    • 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
    • H05B41/24—Circuit arrangements in which the lamp is fed by high frequency ac, or with separate oscillator frequency
    • H05B41/245—Circuit arrangements in which the lamp is fed by high frequency ac, or with separate oscillator frequency for a plurality of lamps
    • 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
    • H05B41/2821—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 single-switch converter or a parallel push-pull converter in the final stage
    • H05B41/2822—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 single-switch converter or a parallel push-pull 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

Definitions

  • the effective cross-sectional area of this portion of the core is reduced so that the overall magnetic resistance of the core increases.
  • the lines of magnetic flux diminish so that the value of the current which flows through the secondary winding can be reduced.
  • the brightness of the fluorescent lamp 5c can be varied by adjusting the angle through which the movable portion 7 is turned.
  • the E-shaped cores 8 of the current transformer 4d vertically relative to each other to change the magnetic gap between them, the brightness of the incandescent lamp 5d can be varied. If the inverter 2 is provided beforehand with means for increasing and decreasing the value of the output current, the power supplied to all of the loads can be regulated uniformly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
EP92115671A 1992-09-14 1992-09-14 Système d'alimentation à haute fréquence et courant constant Withdrawn EP0587923A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP92115671A EP0587923A1 (fr) 1992-09-14 1992-09-14 Système d'alimentation à haute fréquence et courant constant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92115671A EP0587923A1 (fr) 1992-09-14 1992-09-14 Système d'alimentation à haute fréquence et courant constant

Publications (1)

Publication Number Publication Date
EP0587923A1 true EP0587923A1 (fr) 1994-03-23

Family

ID=8210000

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92115671A Withdrawn EP0587923A1 (fr) 1992-09-14 1992-09-14 Système d'alimentation à haute fréquence et courant constant

Country Status (1)

Country Link
EP (1) EP0587923A1 (fr)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998033256A1 (fr) * 1997-01-28 1998-07-30 Tunewell Technology Limited Systeme de distribution de courant alternatif
EP0880873A1 (fr) * 1995-10-24 1998-12-02 Auckland UniServices Limited Dispositif d'eclairage alimente par induction
FR2815809A1 (fr) * 2000-10-23 2002-04-26 Augier S A Dispositif de balisage a faible consommation d'energie
WO2002035891A2 (fr) * 2000-10-25 2002-05-02 Raymarine Limited Circuit d'attaque de lampes fluorescentes
EP1397028A1 (fr) * 2002-09-06 2004-03-10 Minebea Co., Ltd. Ballast pour plusieurs lampes à décharge
WO2004105207A1 (fr) * 2003-05-26 2004-12-02 Auckland Uniservices Limited Systeme de detection syntonise en parallele a sorties de tension multiples
EP1671521A2 (fr) * 2003-10-06 2006-06-21 Microsemi Corporation Circuit de partage de courant et dispositif pour faire fonctionner de nombreuses lampes ccf
EP1730617A2 (fr) * 2004-03-12 2006-12-13 Juno Manufacturing, Inc. Systeme d'eclairage classe 3 courant constant
US7646152B2 (en) 2004-04-01 2010-01-12 Microsemi Corporation Full-bridge and half-bridge compatible driver timing schedule for direct drive backlight system
US7755595B2 (en) 2004-06-07 2010-07-13 Microsemi Corporation Dual-slope brightness control for transflective displays
WO2010106375A3 (fr) * 2009-03-19 2010-12-02 Juice Technology Limited Systèmes électriques
US7952298B2 (en) 2003-09-09 2011-05-31 Microsemi Corporation Split phase inverters for CCFL backlight system
US7977888B2 (en) 2003-10-06 2011-07-12 Microsemi Corporation Direct coupled balancer drive for floating lamp structure
US8093839B2 (en) 2008-11-20 2012-01-10 Microsemi Corporation Method and apparatus for driving CCFL at low burst duty cycle rates
US8223117B2 (en) 2004-02-09 2012-07-17 Microsemi Corporation Method and apparatus to control display brightness with ambient light correction
US8358082B2 (en) 2006-07-06 2013-01-22 Microsemi Corporation Striking and open lamp regulation for CCFL controller
GB2497428A (en) * 2011-12-06 2013-06-12 Isotera Ltd Two-part ferrite core power coupling and distribution arrangements
US8598795B2 (en) 2011-05-03 2013-12-03 Microsemi Corporation High efficiency LED driving method
US8754581B2 (en) 2011-05-03 2014-06-17 Microsemi Corporation High efficiency LED driving method for odd number of LED strings
US8779686B2 (en) 2010-10-24 2014-07-15 Microsemi Corporation Synchronous regulation for LED string driver
US9030119B2 (en) 2010-07-19 2015-05-12 Microsemi Corporation LED string driver arrangement with non-dissipative current balancer
US9614452B2 (en) 2010-10-24 2017-04-04 Microsemi Corporation LED driving arrangement with reduced current spike
GB2547452A (en) * 2016-02-18 2017-08-23 Inductronics Tech Ltd An inductive coupling device and system
WO2017204629A1 (fr) * 2016-05-23 2017-11-30 Optimos Apto B.V. Procédé, dispositif de commande et réseau

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2056680A1 (de) * 1970-11-18 1972-05-25 Pfister K Stufenlos regelbarer Transformator
EP0264135A2 (fr) * 1986-10-17 1988-04-20 Kabushiki Kaisha Toshiba Dispositif d'alimentation de puissance pour charge à décharge

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2056680A1 (de) * 1970-11-18 1972-05-25 Pfister K Stufenlos regelbarer Transformator
EP0264135A2 (fr) * 1986-10-17 1988-04-20 Kabushiki Kaisha Toshiba Dispositif d'alimentation de puissance pour charge à décharge

Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0880873A1 (fr) * 1995-10-24 1998-12-02 Auckland UniServices Limited Dispositif d'eclairage alimente par induction
EP0880873A4 (fr) * 1995-10-24 1999-12-01 Auckland Uniservices Ltd Dispositif d'eclairage alimente par induction
WO1998033256A1 (fr) * 1997-01-28 1998-07-30 Tunewell Technology Limited Systeme de distribution de courant alternatif
US6344699B1 (en) 1997-01-28 2002-02-05 Tunewell Technology, Ltd A.C. current distribution system
WO2002035489A1 (fr) * 2000-10-23 2002-05-02 Augier S.A. Dispositif de balisage a faible consommation d'energie
US6828738B2 (en) 2000-10-23 2004-12-07 Augier S.A. Energy-saving light marking device with low power consumption
FR2815809A1 (fr) * 2000-10-23 2002-04-26 Augier S A Dispositif de balisage a faible consommation d'energie
WO2002035891A2 (fr) * 2000-10-25 2002-05-02 Raymarine Limited Circuit d'attaque de lampes fluorescentes
WO2002035891A3 (fr) * 2000-10-25 2002-08-08 Raymarine Ltd Circuit d'attaque de lampes fluorescentes
US6879114B2 (en) 2000-10-25 2005-04-12 Raymarine Limited Fluorescent lamp driver circuit
EP1397028A1 (fr) * 2002-09-06 2004-03-10 Minebea Co., Ltd. Ballast pour plusieurs lampes à décharge
US6784627B2 (en) 2002-09-06 2004-08-31 Minebea Co., Ltd. Discharge lamp lighting device to light a plurality of discharge lamps
US7781916B2 (en) 2003-05-26 2010-08-24 Auckland Uniservices Limited Parallel-tuned pick-up system with multiple voltage outputs
WO2004105207A1 (fr) * 2003-05-26 2004-12-02 Auckland Uniservices Limited Systeme de detection syntonise en parallele a sorties de tension multiples
US7952298B2 (en) 2003-09-09 2011-05-31 Microsemi Corporation Split phase inverters for CCFL backlight system
EP1671521A2 (fr) * 2003-10-06 2006-06-21 Microsemi Corporation Circuit de partage de courant et dispositif pour faire fonctionner de nombreuses lampes ccf
EP1671521A4 (fr) * 2003-10-06 2007-06-13 Microsemi Corp Circuit de partage de courant et dispositif pour faire fonctionner de nombreuses lampes ccf
US8222836B2 (en) 2003-10-06 2012-07-17 Microsemi Corporation Balancing transformers for multi-lamp operation
US8008867B2 (en) 2003-10-06 2011-08-30 Microsemi Corporation Arrangement suitable for driving floating CCFL based backlight
US7990072B2 (en) 2003-10-06 2011-08-02 Microsemi Corporation Balancing arrangement with reduced amount of balancing transformers
US7977888B2 (en) 2003-10-06 2011-07-12 Microsemi Corporation Direct coupled balancer drive for floating lamp structure
US7932683B2 (en) 2003-10-06 2011-04-26 Microsemi Corporation Balancing transformers for multi-lamp operation
US8223117B2 (en) 2004-02-09 2012-07-17 Microsemi Corporation Method and apparatus to control display brightness with ambient light correction
EP1730617A4 (fr) * 2004-03-12 2010-10-06 Juno Mfg Inc Systeme d'eclairage classe 3 courant constant
EP1730617A2 (fr) * 2004-03-12 2006-12-13 Juno Manufacturing, Inc. Systeme d'eclairage classe 3 courant constant
US7646152B2 (en) 2004-04-01 2010-01-12 Microsemi Corporation Full-bridge and half-bridge compatible driver timing schedule for direct drive backlight system
US7965046B2 (en) 2004-04-01 2011-06-21 Microsemi Corporation Full-bridge and half-bridge compatible driver timing schedule for direct drive backlight system
US7755595B2 (en) 2004-06-07 2010-07-13 Microsemi Corporation Dual-slope brightness control for transflective displays
US8358082B2 (en) 2006-07-06 2013-01-22 Microsemi Corporation Striking and open lamp regulation for CCFL controller
US8093839B2 (en) 2008-11-20 2012-01-10 Microsemi Corporation Method and apparatus for driving CCFL at low burst duty cycle rates
WO2010106375A3 (fr) * 2009-03-19 2010-12-02 Juice Technology Limited Systèmes électriques
US9107259B2 (en) 2009-03-19 2015-08-11 Isotera Limited Electrical system using high frequency AC and having inductively connected loads, and related power supplies and luminaires
US9030119B2 (en) 2010-07-19 2015-05-12 Microsemi Corporation LED string driver arrangement with non-dissipative current balancer
US9614452B2 (en) 2010-10-24 2017-04-04 Microsemi Corporation LED driving arrangement with reduced current spike
US8779686B2 (en) 2010-10-24 2014-07-15 Microsemi Corporation Synchronous regulation for LED string driver
US8754581B2 (en) 2011-05-03 2014-06-17 Microsemi Corporation High efficiency LED driving method for odd number of LED strings
US8598795B2 (en) 2011-05-03 2013-12-03 Microsemi Corporation High efficiency LED driving method
USRE46502E1 (en) 2011-05-03 2017-08-01 Microsemi Corporation High efficiency LED driving method
GB2497428B (en) * 2011-12-06 2014-09-24 Isotera Ltd A coupler for use in a power distribution system
GB2497428A (en) * 2011-12-06 2013-06-12 Isotera Ltd Two-part ferrite core power coupling and distribution arrangements
US10002702B2 (en) 2011-12-06 2018-06-19 Greengage Lighting Limited Coupler for use in a power distribution system
GB2547452A (en) * 2016-02-18 2017-08-23 Inductronics Tech Ltd An inductive coupling device and system
WO2017141224A1 (fr) * 2016-02-18 2017-08-24 Inductronics Technology Ltd Dispositif de couplage par induction et système
GB2547452B (en) * 2016-02-18 2019-06-12 Inductronics Tech Limited An inductive coupling device and system
WO2017204629A1 (fr) * 2016-05-23 2017-11-30 Optimos Apto B.V. Procédé, dispositif de commande et réseau
NL2016810B1 (en) * 2016-05-23 2017-11-30 Optimos Apto B V A method, a controller and a network

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