EP0346405B1 - Circuit de commande de la luminosite d'une lampe - Google Patents

Circuit de commande de la luminosite d'une lampe Download PDF

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Publication number
EP0346405B1
EP0346405B1 EP88909090A EP88909090A EP0346405B1 EP 0346405 B1 EP0346405 B1 EP 0346405B1 EP 88909090 A EP88909090 A EP 88909090A EP 88909090 A EP88909090 A EP 88909090A EP 0346405 B1 EP0346405 B1 EP 0346405B1
Authority
EP
European Patent Office
Prior art keywords
lamp
voltage
control unit
sensor
circuit
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.)
Expired - Lifetime
Application number
EP88909090A
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German (de)
English (en)
Other versions
EP0346405A1 (fr
Inventor
Ingo Maurer
Hermann Kowatsch
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Individual
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Individual
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6339104&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0346405(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to AT88909090T priority Critical patent/ATE92705T1/de
Publication of EP0346405A1 publication Critical patent/EP0346405A1/fr
Application granted granted Critical
Publication of EP0346405B1 publication Critical patent/EP0346405B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/04—Controlling
    • H05B39/08—Controlling by shifting phase of trigger voltage applied to gas-filled controlling tubes also in controlled semiconductor devices
    • H05B39/083—Controlling by shifting phase of trigger voltage applied to gas-filled controlling tubes also in controlled semiconductor devices by the variation-rate of light intensity
    • H05B39/085—Controlling by shifting phase of trigger voltage applied to gas-filled controlling tubes also in controlled semiconductor devices by the variation-rate of light intensity by touch control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S323/00—Electricity: power supply or regulation systems
    • Y10S323/904—Touch systems

Definitions

  • the invention relates to a circuit arrangement for controlling the brightness of a lamp according to the preamble of claim 1.
  • This known circuit arrangement is not provided and also not suitable for a low-voltage lamp, for example a halogen lamp, since a corresponding low-voltage source would be required for its operation.
  • a circuit arrangement would require a large outlay and a large volume.
  • a starter and control circuit for an electric discharge lamp is known from EP-A142063.
  • the circuit comprises a ballast capacitor connected in series with the discharge lamp, a preheating ballast capacitor connected in parallel with the discharge lamp, and a power supply unit for supplying electrical power to the ballast capacitors, which is operated by an oscillator circuit via a transformer .
  • the oscillator circuit is fed by a mains voltage rectified by means of two rectifiers.
  • EP-A-202579 relates to a power supply circuit for a special type of load which has a reverse blocking characteristic, as is the case with a magnetron.
  • the power supply circuit of the magnetron comprises a transformer, the secondary side of which is connected in parallel to the magnetron and a parallel capacitor.
  • the invention has for its object to develop a generic circuit arrangement for switching on and off and controlling the brightness of a lamp so that it can be used to control low-voltage lamps.
  • an AC mains voltage N of, for example, 220 V is fed via a fuse SI to a rectifier GL, which is designed in particular as a full-wave rectifier.
  • the mains AC voltage N is supplied via a phase connection PH and a neutral connection NU.
  • the rectifier GL rectifies the mains AC voltage N and generates a first DC voltage G1, which is supplied to a transformer circuit having a primary part P and a secondary part S, which is designed as a half-bridge converter.
  • the primary part P has a primary winding PW which is magnetically coupled to a secondary winding SW of the secondary part S.
  • a low-voltage lamp L in particular a halogen lamp, is connected to the secondary winding SW. This lamp L lights up as soon as a corresponding voltage is induced in the secondary winding SW and a current I flows through the lamp L.
  • the primary part P is controlled by a control unit ST, to which a sensor SE is connected.
  • a control unit ST is generally known and is commercially available, for example, under the designation S 576A (Siemens).
  • the sensor SE is preferably connected to the secondary part S and attached to the lamp.
  • a small current S1 flows from, for example, approximately 200 ⁇ A of rectifier GL via resistors R3, R2, R1, the lamp L and the operator BP.
  • a voltage drop across resistor R2 is evaluated by a comparator in control unit ST. This generates a brightness signal H with which the primary part P is switched on and controlled. If the operator BP touches the sensor only briefly, the lamp L is switched on.
  • the instantaneous value of the brightness signal H is changed by the control unit ST and thus the brightness of the lamp L is changed via the primary part P in accordance with a phase control, so that the brightness of the lamp L is determined by the duration of the touch.
  • the lamp L can be switched off again by briefly touching the sensor SE again.
  • the control unit ST is supplied with voltage by a second DC voltage G2 of, for example, 15 V, which is generated from the pulsating DC voltage G1, which is the Control unit ST is supplied via the resistor R3 connected between points A and B.
  • the sensor SE is controlled via the further resistor R2 connected between the point B and a point C and the resistor R1 connected between the point C and a point D.
  • the control unit ST is connected on the one hand to a ground point MP, to which the rectifier GL and the primary part P are also connected, and on the other hand the control unit ST is also connected to a protective conductor SL of the mains AC voltage N or to the neutral conductor NU.
  • the protective conductor SL or the neutral conductor NU serve as the reference voltage for the synchronization of the control unit ST through the zero crossings of the AC line voltage N.
  • synchronizing via the protective conductor SL it is not important how the mains plug is inserted.
  • it is necessary to have a protective conductor SL which is not the case in all countries.
  • the neutral conductor NU it is important that the mains plug is inserted in the correct direction, so that it is ensured that the control unit ST is connected to the neutral conductor NU and not to the phase connection PH.
  • circuit arrangement Further details of the circuit arrangement are described below together with the circuit diagram shown in FIG. 2 and the time diagrams shown in FIG. 3, in which the time t in the abscissa direction and the instantaneous values of signals at different points in FIG. 2 in the ordinate direction Circuit arrangement are shown.
  • the rectifier GL generates the pulsating direct voltage G1 from the mains alternating voltage N supplied via the fuse SI, which has a peak value at point A of approximately 310 V, based on the ground point MP.
  • This pulsating DC voltage G1 at point A is shown at the top in FIG. 3.
  • This DC voltage G1 ' contains only one half-wave of the AC mains voltage N.
  • the DC voltage G1 is on the one hand to the primary part P and on the other hand via the resistor R3 to a Zener diode Z, which generates the DC voltage G2 at point B as the operating voltage for the control unit ST.
  • a smoothing capacitor C1 is connected in parallel with the Zener diode Z. According to FIG. 3, the DC voltage G2 at point B is a smoothed DC voltage of, for example, 15 V.
  • the transformer circuit is designed in a known manner as a half-bridge converter and generates the high-frequency oscillation HF with a frequency of, for example, 40 kHz in the primary part P, and the high-frequency oscillation is modulated by the pulsating DC voltage G1.
  • This vibration HF is shown in FIG. 2. It generates in the secondary winding SW at point D a high-frequency oscillation S2 ′′′ shown in FIGS. 2 and 3 with an amplitude of, for example, + - 17 V, based on a secondary ground point SM.
  • This vibration S2 ′′′ causes a current I through the lamp L so that it lights up according to the desired brightness.
  • Point D has the voltage curve S2 ⁇ , likewise shown in FIG. 3, with an amplitude of approximately -150 V, based on the DC voltage G2 at point B.
  • the control unit ST With the occurrence of the voltage S1 ⁇ , the control unit ST outputs a signal to a transistor T, which controls it in a conductive manner and generates the brightness signal H in order to switch on the electronic transformer, which is represented schematically by a switch in the primary part P.
  • the high-frequency oscillation HS is thus generated in the primary part P and the current I flows for the operation of the lamp L in the secondary part S.
  • the protective conductor SL or the neutral conductor NU is used, as shown in dashed lines, the AC line voltage N.
  • the protective conductor SL or the neutral conductor NU is connected to the control unit ST via a resistor R4.
  • the connection point of the resistor R4 to the control unit ST is connected to the DC voltage G2 via a capacitor C2.
  • the control unit ST is connected to the DC voltage G2 via a capacitor C3 which eliminates high-frequency interference. This capacitor C3 defines the internal time base of the control unit ST.
  • the lamp L burns with a predetermined brightness. If the operator BP now touches the sensor SE for a long time, the instantaneous value of the brightness signal H changes and the brightness of the lamp L is thus controlled in accordance with a phase control. Lamp L is switched off by briefly touching it again. Then the transformer T is blocked and the transformer circuit is switched off again.

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)

Claims (3)

  1. Circuit de commande de la luminosité d'une lampe (L) dans un appareil d'éclairage raccordé à une tension alternative de secteur, dans lequel tant l'enclenchement de la lampe que la commande de la luminosité s'effectuent par le contact d'un dispositif senseur (SE) et qui présente une unité de commande (ST) à laquelle est raccordé le dispositif senseur et qui produit un signal de commande (H) pour l'enclenchement et le déclenchement de la lampe ainsi que pour la commande de sa luminosité suivant une commande de phase, caractérisé par
    - un redresseur (GL) auquel est présente, du côté entrée, la tension alternative de secteur et qui est relié, par ses connexions de sortie, à une connexion de tension de référence (MP) de l'unité de commande (ST),
    - un circuit transformateur à transformateur en demi-pont à haute fréquence dont la partie primaire (PW) peut être reliée, d'une part, à l'autre connexion de sortie (A) du redresseur (GL) et, d'autre part, par un dispositif interrupteur (P) qui est commandé par le signal de commande (H) de l'unité de commande (ST), à la connexion de tension de référence (MP), de manière que l'oscillation à haute fréquence produite dans la partie primaire (PW) du circuit transformateur à transformateur en demi-pont à haute fréquence est modulée selon la tension de secteur redressée et dont la partie secondaire (SW) est raccordée à la lampe (L) se présentant sous forme d'une lampe à basse tension,
    - un circuit générateur de tension continue (R3, C1, Z) destiné à produire, à un point de connexion (B), une tension continue en rapport avec le potentiel de la connexion de tension de référence (MP), et
    - le dispositif senseur (SE), d'une part, étant relié à un pôle de la lampe à basse tension (L) et, d'autre part, se trouvant en liaison de fonctionnement avec le point de connexion (B) du circuit d'alimentation en tension continue (R3, C1, Z) ainsi qu'avec une entrée de commande (C) du dispositif de commande (ST) pour, à la suite d'un contact par l'opérateur, provoquer un changement de potentiel à l'entrée de commande (C) du dispositif de commande (ST).
  2. Circuit suivant la revendication 1, caractérisé en ce que le dispositif senseur (SE) est raccordé, par une première résistance fort ohmique (R1), à l'entrée de commande (C) de l'unité de commande (ST) qui, à son tour, est raccordée, par une seconde résistance fort ohmique (R2), au point de connexion (B) du circuit générateur de tension continue (R3, C1, Z).
  3. Circuit suivant la revendication 1 ou 2, caractérisé en ce que la connexion de tension de référence (MP) du circuit présente, par rapport au conducteur de protection ou au conducteur neutre, une tension qui correspond à l'une des deux demi-ondes de la tension alternative de secteur (N).
EP88909090A 1987-10-26 1988-10-25 Circuit de commande de la luminosite d'une lampe Expired - Lifetime EP0346405B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88909090T ATE92705T1 (de) 1987-10-26 1988-10-25 Schaltanordnung zum steuern der helligkeit einer lampe.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873736222 DE3736222A1 (de) 1987-10-26 1987-10-26 Schaltungsanordnung zum steuern der helligkeit einer lampe
DE3736222 1987-10-26

Publications (2)

Publication Number Publication Date
EP0346405A1 EP0346405A1 (fr) 1989-12-20
EP0346405B1 true EP0346405B1 (fr) 1993-08-04

Family

ID=6339104

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88909090A Expired - Lifetime EP0346405B1 (fr) 1987-10-26 1988-10-25 Circuit de commande de la luminosite d'une lampe

Country Status (6)

Country Link
US (1) US4988924A (fr)
EP (1) EP0346405B1 (fr)
JP (1) JPH02501966A (fr)
AT (1) ATE92705T1 (fr)
DE (2) DE3736222A1 (fr)
WO (1) WO1989004110A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3930618C1 (fr) * 1989-09-13 1991-01-31 Maurer, Ingo, 8000 Muenchen, De
US5663633A (en) * 1994-07-15 1997-09-02 Holmes Products Corp. Touch control fan and method
DE19500615B4 (de) * 1995-01-11 2006-10-19 Tridonicatco Gmbh & Co. Kg Helligkeitssteuerschaltung für Glühlampen
DE19628891C1 (de) * 1996-07-17 1997-07-17 Hermann Kovacs Leuchte mit Leistungsversorgungssteuerung für eine Lampe, die auf Berührung eines elektrisch leitenden Teils der Leuchte reagiert
US5783875A (en) * 1997-02-11 1998-07-21 The Lamson & Sessions Co. Touch sensor circuit
FR2778305A1 (fr) * 1998-04-30 1999-11-05 Jean Jacques Hirsch Interrupteurs electriques
SE518662C2 (sv) * 2001-04-27 2002-11-05 Lars Aake Wern Elektrisk strömställare innefattande en kapacitiv sensorkrets
DE60336743D1 (de) * 2002-10-17 2011-05-26 Mallinckrodt Inc Vorrichtung zum transport von flüssigen radiopharmazeutika und die damit verbundene anwendungs- und herstellungsmethode
DE102010004199B4 (de) 2010-01-08 2014-02-06 Austriamicrosystems Ag Schaltungsanordnung und Verfahren zum Treiben einer elektrischen Last
DE102012204284A1 (de) 2012-03-19 2013-09-19 Occhio GmbH Leuchtenkopf mit transluzentem Abdeckelement und kapazitivem Sensor
CN103384428B (zh) * 2012-05-03 2016-09-07 海洋王（东莞）照明科技有限公司 灯具驱动电路及灯具

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0142063A1 (fr) * 1983-10-19 1985-05-22 Hitachi Lighting, Ltd. Appareil d'éclairage pour lampe à décharge électrique
EP0202579A1 (fr) * 1985-05-14 1986-11-26 Matsushita Electric Industrial Co., Ltd. Appareil d'alimentation électrique pour une charge ayant des caractéristiques de blocage à l'arrière

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2647266A1 (de) * 1976-10-20 1978-04-27 Bengel & Bros Bebro Schaltung zum versorgen einer lichtquelle mit spannung
US4096414A (en) * 1977-05-24 1978-06-20 Cbs Inc. Dimmer control circuit
US4168453A (en) * 1977-12-28 1979-09-18 Datapower, Inc. Variable intensity control apparatus for operating a gas discharge lamp
US4250432A (en) * 1979-04-16 1981-02-10 Beatrice Foods Co. Touch dimmer circuit
GB2077011B (en) * 1980-05-27 1983-03-09 Yeldham Albert James A bedroom light control device
US4379254A (en) * 1981-03-23 1983-04-05 Andrew L. D'Orio Dimmer circuit for fluorescent lamp
JPS58157083A (ja) * 1982-03-15 1983-09-19 松下電工株式会社 非常灯回路
US4663570A (en) * 1984-08-17 1987-05-05 Lutron Electronics Co., Inc. High frequency gas discharge lamp dimming ballast
JPS61285698A (ja) * 1985-06-12 1986-12-16 岩崎電気株式会社 調光装置
DE3635109A1 (de) * 1986-10-15 1988-04-21 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Schaltungsanordnung zum betrieb von niedervolt-halogengluehlampen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0142063A1 (fr) * 1983-10-19 1985-05-22 Hitachi Lighting, Ltd. Appareil d'éclairage pour lampe à décharge électrique
EP0202579A1 (fr) * 1985-05-14 1986-11-26 Matsushita Electric Industrial Co., Ltd. Appareil d'alimentation électrique pour une charge ayant des caractéristiques de blocage à l'arrière

Also Published As

Publication number Publication date
WO1989004110A1 (fr) 1989-05-05
JPH02501966A (ja) 1990-06-28
ATE92705T1 (de) 1993-08-15
DE3882979D1 (de) 1993-09-09
EP0346405A1 (fr) 1989-12-20
DE3736222A1 (de) 1989-05-03
DE3736222C2 (fr) 1990-08-23
US4988924A (en) 1991-01-29

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