WO2010133990A1 - Circuit d'alimentation électrique pour alimenter une lampe en énergie - Google Patents

Circuit d'alimentation électrique pour alimenter une lampe en énergie Download PDF

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Publication number
WO2010133990A1
WO2010133990A1 PCT/IB2010/051946 IB2010051946W WO2010133990A1 WO 2010133990 A1 WO2010133990 A1 WO 2010133990A1 IB 2010051946 W IB2010051946 W IB 2010051946W WO 2010133990 A1 WO2010133990 A1 WO 2010133990A1
Authority
WO
WIPO (PCT)
Prior art keywords
capacitor
power supply
supply circuit
dimmer
lamp
Prior art date
Application number
PCT/IB2010/051946
Other languages
English (en)
Inventor
John E. K. G. De Clercq
Harry F. P. Michiels
Henricus H. M. J. M. Kahlman
Renatus W. C. Van Der Veeken
Original Assignee
Koninklijke Philips Electronics N.V.
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 Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Publication of WO2010133990A1 publication Critical patent/WO2010133990A1/fr

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
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • H05B41/3924—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by phase control, e.g. using a triac
    • 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

Definitions

  • the invention relates to the field of dimmable lamps, and more specifically to a power supply circuit for supplying power to a lamp.
  • the invention further relates to a lighting system, and a method to operate said power supply circuit.
  • Phase-cutting the AC waveform of the electric mains means that a part of the AC waveform from the electric mains M is transmitted by the dimmer D, and another part of the AC waveform is blocked so that the voltage at the phase terminal is equal to the voltage at the neutral terminal. If the transition between transmission of the AC waveform and blocking of the AC waveform does not take place at zero crossings of the AC waveform, voltage steps occur in the voltage waveform at the phase terminal Ip. These voltage steps may introduce peak currents by rapidly charging or discharging capacitor C. The electrical current drawn by the capacitor C due to the voltage step may be reduced by changing an electrical charge stored in the capacitor C with the charge device CD in such a manner that a voltage of the capacitor C is already progressing in a direction towards the "future" voltage step.
  • the dimmer D comprises a triac T, i.e. the dimmer is a triac dimmer, to limit the power from the electric mains to the power supply circuit by phase-cutting.
  • the triac T is modulated into and out of conduction at a predetermined phase of the applied AC waveform, said predetermined phase usually being set by a user input.
  • the output signal from the dimmer is supplied to the power supply circuit via a phase terminal Ip and a neutral terminal In to an input side I of the power supply circuit.
  • the power supply circuit comprises a rectifier R, such as a full-wave rectifier or half-wave rectifier to convert the alternating voltage supplied by the dimmer D into a direct voltage.
  • the power supply circuit comprises a step-up converter as a switched mode DC-DC converter, wherein the step-up converter has an output which is higher than the input.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

L'invention concerne un circuit d'alimentation électrique servant à alimenter une lampe en énergie, comprenant : - un côté d'entrée pour connecter le circuit d'alimentation électrique à un gradateur ; - un côté de sortie pour connecter le circuit d'alimentation électrique à la lampe ; - un condensateur connecté au côté d'entrée ; le circuit d'alimentation électrique comprenant un dispositif de charge en communication électrique avec le condensateur pour anticiper l'échelon de tension provenant du gradateur en transférant une charge vers ou depuis le condensateur avant l'occurrence de l'échelon de tension afin de réduire un courant électrique absorbé par le condensateur en raison de l'échelon de tension.
PCT/IB2010/051946 2009-05-20 2010-05-04 Circuit d'alimentation électrique pour alimenter une lampe en énergie WO2010133990A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP09160731.7 2009-05-20
EP09160731 2009-05-20

Publications (1)

Publication Number Publication Date
WO2010133990A1 true WO2010133990A1 (fr) 2010-11-25

Family

ID=42332508

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2010/051946 WO2010133990A1 (fr) 2009-05-20 2010-05-04 Circuit d'alimentation électrique pour alimenter une lampe en énergie

Country Status (2)

Country Link
TW (1) TW201106795A (fr)
WO (1) WO2010133990A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1465330A2 (fr) * 2003-04-04 2004-10-06 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Procédé pour varier la consommation de puissance de charges capacitives
DE102005018792A1 (de) * 2005-04-22 2006-10-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Elektronisches Vorschaltgerät mit Blindstromschwingungsreduzierung
DE102005018795A1 (de) * 2005-04-22 2006-10-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Elektronisches Vorschaltgerät mit Blindstromschwingungsreduzierung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1465330A2 (fr) * 2003-04-04 2004-10-06 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Procédé pour varier la consommation de puissance de charges capacitives
DE102005018792A1 (de) * 2005-04-22 2006-10-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Elektronisches Vorschaltgerät mit Blindstromschwingungsreduzierung
DE102005018795A1 (de) * 2005-04-22 2006-10-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Elektronisches Vorschaltgerät mit Blindstromschwingungsreduzierung

Also Published As

Publication number Publication date
TW201106795A (en) 2011-02-16

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