EP4115711A1 - Circuit à del électroluminescentes à double polarité et à courant continu - Google Patents

Circuit à del électroluminescentes à double polarité et à courant continu

Info

Publication number
EP4115711A1
EP4115711A1 EP21717326.9A EP21717326A EP4115711A1 EP 4115711 A1 EP4115711 A1 EP 4115711A1 EP 21717326 A EP21717326 A EP 21717326A EP 4115711 A1 EP4115711 A1 EP 4115711A1
Authority
EP
European Patent Office
Prior art keywords
lighting element
opposite polarities
element circuit
circuit array
dual
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.)
Pending
Application number
EP21717326.9A
Other languages
German (de)
English (en)
Inventor
Durante RENTON
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.)
Individual
Original Assignee
Individual
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
Priority claimed from EP20161953.3A external-priority patent/EP3879847A1/fr
Application filed by Individual filed Critical Individual
Priority claimed from PCT/EP2021/054250 external-priority patent/WO2022174923A1/fr
Publication of EP4115711A1 publication Critical patent/EP4115711A1/fr
Pending 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]
    • H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
    • H05B45/52—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits in a parallel array of LEDs
    • 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]
    • H05B45/40—Details of LED load circuits
    • H05B45/44—Details of LED load circuits with an active control inside an LED matrix
    • H05B45/46—Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines
    • 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/20—Responsive to malfunctions or to light source life; for protection
    • H05B47/24—Circuit arrangements for protecting against overvoltage

Definitions

  • the invention belongs to the technical field of illumination, in particular but not exclusive to DC dual polarity lighting circuit.
  • SMD refers to Surface Mount Device.
  • DIP refers to Dual In-Line Package device.
  • COB refers to LED Chip On-Board device.
  • PCB refers to Printed Circuit Board.
  • 1C Chip refers to Integrated Circuit device.
  • Lighting element refers to COB, DIP or SMD light emitting diodes.
  • LED refers to Light Emitting Diode.
  • LEDs have been widely used in various light sources, signal displays, signal devices and as indicators just to name a few.
  • LED lighting of various specifications, are packaged on a dedicated frame / PCB with one or multiple LED chips. To provide the most optimum lighting requirement, with a lower power consumption compared to previous lighting technology. All of the LED chips are connected in some of the following circuits; in parallel, in series, or in a mixture of parallel and series circuits.
  • LEDs are surging in popularity for lighting applications due to their energy saving and long life properties. With this increase in demand, LED technology has been advancing quickly in all fields of traditional lighting technology.
  • a simple reverse polarity lighting circuit designed with 2 or more sets of illuminating diodes arrays assembled in reverse polarity to one another. These illuminating diode arrays are arranged in such a way, whereby each active circuit provides a consistent lighting effect between each individual lighting array.
  • Switching circuit / Power driving circuit / Lighting circuit can be easily replaced individually depending on the area of use.
  • [0032] in one example, is the use of LED device in the Automotive sector.
  • a light failure can increase the potential for accidents, specifically due to the increase use of Autonomous vehicles. Whereby, the vehicle is miss interpreted by the oncoming or tailing Autonomous vehicles, resulting in a potentially avoidable accident.
  • Driving infringements for a light failure can be significant.
  • the increase use of sealed Driving and Tail lights whereby it is no longer serviceable, not only creates increased e-waste and higher repair costs.
  • the basic utility model provides a simple dual polarity lighting circuit with a DC input. By using 2 LED Chips / element arrays in reverse polarity to one another, whereby, only one lighting element array is active at any one time. This method provides a cheap reverse polarity protection. Additionally, once failure occurs, by reversing the circuit's polarity, the secondary lighting circuit is activated, doubling the device life, halving the potential E-Waste and cost in the process.
  • the power consumption of each LED chip is always at least of 15% lower than the maximum forward voltage of the LED.
  • the LED chips are grouped in a series , Parallel or Hybrid mix of the 2 circuit, so that the power consumption of each LED chip is always lower than the rated power working state of the LED.
  • LEDs are arranged in optimized lighting pattern, whereby, the device emits a constant lighting effect, that is visually undetectable which of the lighting circuit are activated.
  • the light device does not have main or secondary lighting circuit defined, while both lighting circuits operate exactly the same. Whereby, this method provides a simple operation and no technological understanding for the replacement is required.
  • This device is also designed but not limited to when the Lighting device is modular, whereby the LEDs are separated from the power supply / voltage regulator to allow individual part replacement.
  • this device has the most potential, but not limited to, when an external power supply / voltage regulator is used.
  • drawings 001 Fig 1 - Fig 5 illustrates some basic circuit diagrams.
  • Fig 1. illustrates bi-directional LEDs arranged in a simplified circuit array.
  • Fig 2. illustrates bi-directional LEDs arranged in a simplified circuit array with the use of Zener diodes for overvoltage and reverse polarity protection.
  • Fig 3. illustrates LEDs with integrated diodes arranged in opposite polarity in a simplified circuit array.
  • Fig 4. illustrates bi-directional LEDs arranged in a multiple circuit array.
  • FIG. illustrates LEDs arranged in opposite polarity in a simplified circuit array.
  • Fig 6. Illustrates an advance circuit; which utilizes 2 LED Circuit arrays, with a transistor as a automatic switching device, once the primary circuit has failed.
  • 2 Zener diodes can be used connected in opposite polarity for reverse voltage and overvoltage protection.
  • an optional current suppression / Fault indicating device can be integrated.
  • Fig. 7 Illustrates 2 advance circuit array, arranged in opposite polarity to one another.
  • LED arrays which has the potential to increase the Lighting devices life. For example, LED array "A” will activate, once failure occurs LED array “B” will switch on. Once LED array “B” failure has occurred the Lighting circuits will no longer function. When this occurs, failure is detected and the lighting circuit can be then automatically or manually switched to activate the secondary circuit array which operates in the same function.
  • a current sensing device or LED Driver with a current sensing device can automatically switch the devices polarity once failure is detected.
  • Power supply - uses DC input / DC PWM input
  • Resistor - An electrical component that implements an electrical resistance in the circuit. Resistors are used to reduce current flow, adjust signal levels, and to divide voltages just to name a few.
  • Zener Diode - A special type of diode designed to allow current to flow in the reverse direction when a certain set reverse voltage is reached.
  • Diode - An electronic component that allows current to flow in one direction and blocks the flow of current in the opposite direction.
  • Transistor - is a semiconductor device used to amplify or switch electronic signals or current flow ⁇
  • 501 Represents a lighting source - regardless of the lighting package, for example LED, COB, SMD.
  • Lighting source with integrated Zener Diode - for reverse voltage / overvoltage protection 502. Lighting source with integrated Zener Diode - for reverse voltage / overvoltage protection.
  • Bi-Directional LED which consists of two different LED emitters, which are connected to the same Anode and Cathode in opposite polarity to each other. Current flow in one direction and the first LED is activated, when voltage is reversed the second LED is activated.
  • Lighting source with an integrated diode - for additional reverse voltage protection is provided.

Landscapes

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

Abstract

Le mode de réalisation de la présente Invention concerne un circuit d'éclairage à DEL à double polarité alimenté en courant continu, simplifié. La présente invention comprend deux réseaux d'éléments d'éclairage, qui sont disposés dans des polarités opposées l'un par rapport à l'autre. Les éléments d'éclairage sont conçus pour s'allumer alternativement; une fois que le circuit d'éclairage actif est défaillant, le circuit d'éclairage secondaire peut être activé simplement en inversant la polarité du circuit. Les éléments d'éclairage sont disposés de telle manière à l'intérieur du dispositif d'éclairage, qu'aucune différence d'éclairage visible ne peut être faite entre les 2 circuits d'éclairage.
EP21717326.9A 2020-03-10 2021-02-21 Circuit à del électroluminescentes à double polarité et à courant continu Pending EP4115711A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP20161953.3A EP3879847A1 (fr) 2020-03-10 2020-03-10 Circuit de microphone destiné à la linéarisation de l'effet de proximité dans un microphone directionnel
PCT/EP2021/054250 WO2022174923A1 (fr) 2021-02-21 2021-02-21 Circuit à del électroluminescentes à double polarité et à courant continu

Publications (1)

Publication Number Publication Date
EP4115711A1 true EP4115711A1 (fr) 2023-01-11

Family

ID=84371505

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21717326.9A Pending EP4115711A1 (fr) 2020-03-10 2021-02-21 Circuit à del électroluminescentes à double polarité et à courant continu

Country Status (1)

Country Link
EP (1) EP4115711A1 (fr)

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