EP0051537A1 - Amorceur pour lampe à décharge - Google Patents

Amorceur pour lampe à décharge Download PDF

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Publication number
EP0051537A1
EP0051537A1 EP81401728A EP81401728A EP0051537A1 EP 0051537 A1 EP0051537 A1 EP 0051537A1 EP 81401728 A EP81401728 A EP 81401728A EP 81401728 A EP81401728 A EP 81401728A EP 0051537 A1 EP0051537 A1 EP 0051537A1
Authority
EP
European Patent Office
Prior art keywords
triac
resistor
series
discharge lamp
lamp
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Withdrawn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
EP81401728A
Other languages
German (de)
English (en)
French (fr)
Inventor
Gian Franco Merli
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.)
Claude Paz et Visseaux SA
Original Assignee
Claude SA
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 Claude SA filed Critical Claude SA
Publication of EP0051537A1 publication Critical patent/EP0051537A1/fr
Withdrawn legal-status Critical Current

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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
    • H05B41/02—Details
    • H05B41/04—Starting switches
    • H05B41/042—Starting switches using semiconductor devices

Definitions

  • the invention relates to high power discharge lamps, in particular iodide lamps of 2000 Watts, and, more particularly, the ignition circuit necessary to operate such a lamp.
  • the initiators for discharge lamps can be produced in different ways. Since the lamp is generally connected in series with an induction coil, the latter can, for example, be provided with an intermediate plug and be connected so as to constitute a voltage step-up auto-transformer thus making it possible to increase the voltage. applied to the lamp terminals.
  • Such an auto-transformer is an expensive, heavy and bulky component.
  • such a circuit may not function properly if it is disposed at a distance substantially distant from the lamp which it controls.
  • This electronic initiator includes a thyristor, the ignition angle of which varies as a function of the network voltage.
  • this igniter generates large transient currents before delivering the required ignition pulse and thereby unnecessarily consumes a certain power.
  • the initiator must deliver a voltage pulse whose peak value is at least equal to 1100 Volts and the duration, measured at 900 Volts, is greater than 100 us .
  • the subject of the present invention is an electronic initiator having the required characteristics and making it possible to obviate the aforementioned drawbacks, while being simple and inexpensive to produce in series and nevertheless having increased reliability compared with known initiators.
  • the initiator which is arranged in parallel with the lempe which it controls, comprises a capacitor connected in series with a triac, and a branch including in series a first resistor, a zener diode and a second resistor, this branch being connected between the junction point of the capacitor and the triac, and one of the terminals of the voltage source.
  • the triac control circuit is connected to the junction point of the second resistor and the zener diode, and includes a diac.
  • the single Figure shows the electrical diagram of an initiator according to the present invention.
  • the discharge lamp 1 is connected in series to an induction coil 2, the assembly being connected to the terminals of an alternating voltage source delivering for example 380 volts.
  • the igniter 3 is arranged in parallel with the discharge lamp 1. It comprises a capacitor 4 in series with a triac 5.
  • the triac 5 control circuit is connected to the junction point of the second resistor 9 and the zener diode 8. It comprises a diac 11 and a capacitor 12, the latter being arranged in parallel with the resistor 9.
  • the zener diode 8 makes it possible to directly control the opening angle of the triac 5.
  • the zener diode 8 can advantageously be replaced by several zener diodes, in particular three, connected in series.

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
EP81401728A 1980-10-30 1981-10-28 Amorceur pour lampe à décharge Withdrawn EP0051537A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8023210 1980-10-30
FR8023210A FR2493598A1 (fr) 1980-10-30 1980-10-30 Amorceur pour lampe a decharge

Publications (1)

Publication Number Publication Date
EP0051537A1 true EP0051537A1 (fr) 1982-05-12

Family

ID=9247498

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81401728A Withdrawn EP0051537A1 (fr) 1980-10-30 1981-10-28 Amorceur pour lampe à décharge

Country Status (3)

Country Link
US (1) US4355264A (enrdf_load_stackoverflow)
EP (1) EP0051537A1 (enrdf_load_stackoverflow)
FR (1) FR2493598A1 (enrdf_load_stackoverflow)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4513227A (en) * 1983-01-10 1985-04-23 Gte Products Corporation High intensity discharge (HID) lamp starting apparatus
US5118994A (en) * 1990-05-25 1992-06-02 Gte Laboratories Incorporated Method and circuit for improved hid lamp maintenance
US5955847A (en) * 1994-06-10 1999-09-21 Beacon Light Products, Inc. Method for dimming a fluorescent lamp
US5537010A (en) * 1994-06-10 1996-07-16 Beacon Light Products, Inc. Voltage-comparator, solid-state, current-switch starter for fluorescent lamp
US5861721A (en) * 1996-11-25 1999-01-19 Beacon Light Products, Inc. Smooth switching module
US5861720A (en) * 1996-11-25 1999-01-19 Beacon Light Products, Inc. Smooth switching power control circuit and method
CA2300351A1 (en) * 1999-04-21 2000-10-21 Eric Ngo Fluorescent lamp ballast combined with electronic starter and resonant capacitor for reducing input current
ITRM20100028A1 (it) * 2010-01-27 2011-07-28 Gmm Tecnologia S R L "innovativo starter per lampade a fluorescenza"

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2023444A1 (enrdf_load_stackoverflow) * 1969-11-15 1970-08-21 Tokai Rika Co Ltd
GB1598546A (en) * 1976-12-20 1981-09-23 Sword Lighting & Dev Ltd Discharge lamp starter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL161962C (nl) * 1969-03-22 1980-03-17 Philips Nv Schakeling voor het ontsteken en met wisselstroom voeden van een gas en/of dampontladingslamp.
FR2280289A1 (fr) * 1974-07-26 1976-02-20 Lampes Sa Amorceur electronique pour lampes a decharge
GB1593544A (en) * 1977-06-27 1981-07-15 Gen Electric Co Ltd Circuits for operating electric discharge lamps

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2023444A1 (enrdf_load_stackoverflow) * 1969-11-15 1970-08-21 Tokai Rika Co Ltd
GB1598546A (en) * 1976-12-20 1981-09-23 Sword Lighting & Dev Ltd Discharge lamp starter

Also Published As

Publication number Publication date
FR2493598A1 (fr) 1982-05-07
FR2493598B1 (enrdf_load_stackoverflow) 1985-02-22
US4355264A (en) 1982-10-19

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE CH DE FR IT NL

17P Request for examination filed

Effective date: 19820817

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19841030

RIN1 Information on inventor provided before grant (corrected)

Inventor name: FRANCO MERLI, GIAN