R untuk LED super terang tegangan 12 Volt

Discussion in 'Elektronika Umum' started by haribagus, Oct 30, 2009.

  1. haribagus

    haribagus New Member

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    Rekan milis,
    mau tanya lagi nih
    sekarang banyak dijual LED super terang yang bisa langsung dicatu dengan 3 batrei, bila menggunakan tegangan 12 volt biasanya 3 LED + 1 R 220 ohm dipasang seri

    apakah rekan2 ada yang tahu seberapa awet bila dinyalakan terus, atau adakah rangkaian lain yang bisa menjadikan LED lebih awet tanpa terlalu banyak mengurangi terangnya sinar LED ?

    Apakah LED yang langsung ke 220 volt ada yang punya rangkaiannya dan berkenan di share di sini ?

    karena sekarang bila jalan di mall dilantai banyak LED pengganti lampu halogen 12 volt atau 220 volt

    ini contoh saya ambil dari dagangan agan Hutomo, sebenernya cukup murah dari pada ngrakit sendiri

    [​IMG]

    [​IMG]

    bila dilihat rangkaiannya maka hanya 3 LED + 1 R dihubung seri, mau berapa susun tinggal diparalel
     
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  2. haribagus

    haribagus New Member

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    kalau LED gini beli dimana ya ?
    cuma dikasih R 560 ohm uda bisa 12 V, nyalanya bagus pisan

    [​IMG]
     
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  3. ruhiyadi

    ruhiyadi Member

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    tinggal didaerah mana bro..kalau dijakarta ada tuh diglodok dekat toko marconi
     
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  4. omyo

    omyo New Member

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    thak's bro untuk infonya
    keep share our info to others

    omyo
     
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  5. onda

    onda New Member

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    kalo dimedan beli dimana ya pa
     
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  6. ibnuyahya

    ibnuyahya New Member

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    eh bisa bagus ya bisa seri 3 gitu. itu R pake yg berapa ohm? saya seri 4 pakai 1k (diajarin toko) koq redup bgt ya. trims :)
     
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  7. mamuk

    mamuk Well-Known Member Super Member

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    3led seri pakai R 220ohm klu 4led seri R nya harus ukuran di bawahnya misal 180 atau 150ohm :)
     
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