FR2435882A1 - Dispositif d'emission de rayonnement - Google Patents

Dispositif d'emission de rayonnement

Info

Publication number
FR2435882A1
FR2435882A1 FR7816720A FR7816720A FR2435882A1 FR 2435882 A1 FR2435882 A1 FR 2435882A1 FR 7816720 A FR7816720 A FR 7816720A FR 7816720 A FR7816720 A FR 7816720A FR 2435882 A1 FR2435882 A1 FR 2435882A1
Authority
FR
France
Prior art keywords
emitter
pulse
transistor
applying power
form under
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.)
Granted
Application number
FR7816720A
Other languages
English (en)
Other versions
FR2435882B3 (fr
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.)
Wilkins & Ass
Original Assignee
Wilkins & Ass
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 Wilkins & Ass filed Critical Wilkins & Ass
Priority to FR7816720A priority Critical patent/FR2435882A1/fr
Publication of FR2435882A1 publication Critical patent/FR2435882A1/fr
Application granted granted Critical
Publication of FR2435882B3 publication Critical patent/FR2435882B3/fr
Granted legal-status Critical Current

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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/382—Switched mode power supply [SMPS] with galvanic isolation between input and output
    • 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/36—Circuits for reducing or suppressing harmonics, ripples or electromagnetic interferences [EMI]
    • 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/395—Linear regulators

Landscapes

  • Dc-Dc Converters (AREA)
  • Amplifiers (AREA)
  • Electronic Switches (AREA)

Abstract

L'invention concerne les émetteurs de rayonnement optique. Le circuit d'attaque d'une diode électroluminescente 10 comprend notamment un générateur d'impulsions carrées 16, et un générateur à multivibrateur monostable, 18, qui excitent la diode électroluminescente sous la forme d'une série d'impulsions de très courte durée se répétant un grand nombre de fois sur un cycle du courant alternatif redressé qui alimente la diode. Application aux détecteurs optiques de fumée
FR7816720A 1978-06-05 1978-06-05 Dispositif d'emission de rayonnement Granted FR2435882A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7816720A FR2435882A1 (fr) 1978-06-05 1978-06-05 Dispositif d'emission de rayonnement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7816720A FR2435882A1 (fr) 1978-06-05 1978-06-05 Dispositif d'emission de rayonnement

Publications (2)

Publication Number Publication Date
FR2435882A1 true FR2435882A1 (fr) 1980-04-04
FR2435882B3 FR2435882B3 (fr) 1981-02-13

Family

ID=9209069

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7816720A Granted FR2435882A1 (fr) 1978-06-05 1978-06-05 Dispositif d'emission de rayonnement

Country Status (1)

Country Link
FR (1) FR2435882A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2648980A1 (fr) * 1989-06-26 1990-12-28 Adecef Voyant lumineux pouvant etre alimente avec une tension continue ou une tension alternative
FR2711884A1 (fr) * 1993-10-29 1995-05-05 Solartec Sarl Dispositif de signalisation notamment pour la signalisation routière, aéronautique ou maritime.
WO2000065880A1 (fr) * 1999-04-22 2000-11-02 Sickinger, Monika Source lumineuse constituee de plusieurs diodes electroluminescentes montees les unes derriere les autres

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2648980A1 (fr) * 1989-06-26 1990-12-28 Adecef Voyant lumineux pouvant etre alimente avec une tension continue ou une tension alternative
EP0406143A1 (fr) * 1989-06-26 1991-01-02 A.D.E.C.E.F. Voyant lumineux pouvant être alimenté avec une tension continue ou une tension alternative
FR2711884A1 (fr) * 1993-10-29 1995-05-05 Solartec Sarl Dispositif de signalisation notamment pour la signalisation routière, aéronautique ou maritime.
WO2000065880A1 (fr) * 1999-04-22 2000-11-02 Sickinger, Monika Source lumineuse constituee de plusieurs diodes electroluminescentes montees les unes derriere les autres

Also Published As

Publication number Publication date
FR2435882B3 (fr) 1981-02-13

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