sexta-feira, 4 de março de 2011

Fazendo uma Lâmpada de Led


Quem nunca teve em casa uma lâmpada de filamento queimada? Esse tipo de lâmpada realmente queima com muita facilidade e sempre terminamos a  jogando fora, porque realmente o resto não serve mais para nada. Bem, agora você poderá mudar sua opinião sobre isso. Que tal pegar aquela lâmpada queimada e fazer outra, só que de led?


Material necessário:
- lampada queimada
- 3 leds
- diodo 1N4007
- resistor de 10K 1/2W
- capacitor de 100uf
- ferro de solda e solda
- cola quente
- silicone (opcional)






 
Solte a parte de metal da lâmpada segurando firme e movendo para um lado e para o outro até ir soltando aos poucos. Com um pano e um alicate, quebre a ponta de vidro que fica para fora da lâmpada. Com um alicate de bico quebre a parte central de vidro da lâmpada. Retire todo vidro e deixe a parte central vazia.



Pegue os 3 leds e cole um no outro, com cola quente e solde eles em série deixando apenas duas pontas (positivo e neutro). Solde um fio na parte central da base da lâmpada e solde em seguida o resistor, o diodo  e o lado positivo do led. A outra ponta do led solde na base da lâmpada (na parte lateral).
Eu coloquei um pouco de silicone dentro da lâmpada para que a luz ficasse mais difusa. Mas você pode lixar o os leds para isso ou usar uma lâmpada que o vidro seja branco.

Nas fotos você podem ver que usei uma base de lâmpada de  fluorescente, mas dá pra usar uma base normal. Coloquei também o ferro de um clipe como apoio para fazer com que os leds fiquem exatamente no centro da lâmpada. Cole o vidro da lâmpada a base com cola quente (ou se preferir você pode usar uma fita adesiva dupla face.
circuito utilizado
Aqui está o video do projeto. Deixem comentários. Digam o que acharam.
Bom carnaval a todos.



52 comentários:

  1. Isso foi muito legal...agora vou revirar todo as lixeiras para procurar lâmpadas velhas e farei muitas iqual a essa assim poderei salvar o planeta terra.

    Obrigado,
    Pina Paz

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  2. bacana seu projeto.. vc teria um circuito para ampliar para mais leds em uma mesma lampada...
    gracias
    lucas
    lucasVida@ig.com.br

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  3. Muito legal, já estou revivendo as antigas lámpadas que iam parar no lixo e assim poluindo o planeta. Você teria uma projeto para uma quantidade maior de leds tipo 20 por exemplo, e também se existe um projeto para lâmpada de freio e setas de carros e motos.
    Muito obrigado. Muito legal mesmo!!!

    Sds,

    Renato - renatorocha29@gmail.com

    ResponderExcluir
  4. muito legal mesmo!! Você teria o circuito para colocar mais lampadas? Abraços verdes!!

    ezrasantana@gmail.com

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  5. muito legal !
    Esse projeto seria pra qual voltagem ?
    220 OU 110 ?



    arnaldo.motta@hotmail.com

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  6. Boas.

    gostei imenso do projecto de renovar as lampadas fundidas..

    tenho algumas questoes para lhe fazer, sera que podia entrar em contacto comigo??

    mail: alexgomes_4@hotmail.com
    um abraço
    Alexandre Gomes

    ResponderExcluir
  7. fiquei na duvida no capacitor: nao tem MAIS NENHUM VALOR:TIPO 100/160 ou 180....?
    agradeço desde ja e t+

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  8. esse projeto nao funciona para 220v pois o resistor torra.

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  9. eu suspeito que o capacitor está invertido.

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  10. gostaria de saber se a lâmpada é para 220v. e se você tem outro projeto com mais leds. Obrigado


    Claudiorsilva78@hotmail.com

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  11. oi esse projecto tb da pra lampada de 220v.?
    agradeco resposta
    luism.alves@hotmail.com

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  12. Thanks for sharing, I will bookmark and be back again








    As lâmpadas LED

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  13. muito bom o seu video, ele ensina o que poucos tem o prazer de ensinar.

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  14. Vc usou 2 lampadas? uma incandescente e uma fluorescente? e reaproveitou o circuito da lampada fluorescente?

    como fez?

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  15. legal amigo, agora minha casa vai ser iluminada a leds,,,leds tem 100.000hrs de vida então vou projetar varias para minha casa he he.

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  51. Meu interesse seria criar uma tela grande tipo um painel para que pudesse exibir informação a parte de exibição eu sei fazer a questão é como faço um led combinar com o outro para reproduzir cores diversas.
    Obrigado.

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  52. Esse capacitor é de quantos volts?
    Obrigado.

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