circuit design

  • Estado: Pending
  • Premio: £16
  • Propuestas recibidas: 10
  • Ganador: FabriOlivari

Resumen del concurso

Design a simple circuit and specify components for four backlit buttons with a momentary action. The circuit will pass 240VAC through the momentary buttons and will also need to provide LED low temperature backlighting for the four buttons.

The circuit needs to be 25mm wide and 50mm High with the LED's centred in the 4 squares in the diagram.

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  • AmirTadrus
    AmirTadrus
    • 3 años atrás

    hello sir, can you tell me the function of this circuit or the scenario of it.

    • 3 años atrás
    1. LewisUK
      Organizador del concurso
      • 3 años atrás

      The buttons are to provide feedback to another system and the LED's are for backlighting the buttons

      • 3 años atrás
  • FabriOlivari
    FabriOlivari
    • 3 años atrás

    I need more datails...

    • 3 años atrás
  • FabriOlivari
    FabriOlivari
    • 3 años atrás

    In order to obtain 5VDC or 12VDC, you have to perform a rectification, filtering and regulation, I plan to use a voltage regulator from the 78xx range, it can be a 7805 for 5v or a 7812 for 12v, I leave that to your discretion.
    The LEDs and their resistance are THT or SMD. What kind of led do you need? If you can detail that to me, I appreciate it. As soon as I have a finished sketch of the diagram, I publish it for you to analyze it and give me your opinion, then I send the PCB design, once the schematic design is confirmed.

    • 3 años atrás
  • LewisUK
    Organizador del concurso
    • 3 años atrás

    Something like this one that supports 250VAC:
    https://www.mouser.co.uk/ProductDetail/CK/PTS645TL502LFS?qs=%252B1mt6%252Bz2kvyuaUaDtqdBRw%3D%3D

    • 3 años atrás
    1. FabriOlivari
      FabriOlivari
      • 3 años atrás

      ok, no problem.

      • 3 años atrás
  • LewisUK
    Organizador del concurso
    • 3 años atrás

    maybe something a little bigger that supports 250VAC

    • 3 años atrás
    1. FabriOlivari
      FabriOlivari
      • 3 años atrás

      Something bigger like what, what do you imagine? Could it be the THT 6x6mm pushbuttons? or some other specific?

      • 3 años atrás
  • LewisUK
    Organizador del concurso
    • 3 años atrás

    Hi, I need a PCB layout. the buttons are momentary SMD buttons similar to these: https://www.aliexpress.com/item/4000700205625.html
    There will be a plastic button above these that will press down on them.

    • 3 años atrás
    1. FabriOlivari
      FabriOlivari
      • 3 años atrás

      Excelent, Iam working.

      • 3 años atrás
    2. FabriOlivari
      FabriOlivari
      • 3 años atrás

      I have another query, in the circuit there is a transformer, how do you need me to represent it? with some terminal blocks or connection points? I would need more details on that, thanks.

      • 3 años atrás
  • FabriOlivari
    FabriOlivari
    • 3 años atrás

    Hello, I would like to ask you, what kind of button are you looking for? I would need more info about those components, and if I could be more detailed with what you need. Do you need a schematic or PCB layout? I await your response thank you very much

    • 3 años atrás
  • FabriOlivari
    FabriOlivari
    • 3 años atrás

    Working

    • 3 años atrás

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