[ask]power supply 18volt

Discussion in 'Elektronika Umum' started by digizer, Mar 12, 2010.

  1. digizer

    digizer New Member

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    :D

    bisa minta tolong gak carikan skema power supply dengan keluaran 18-24volt > 1A
    yg pakai trafo 3A
    cari yg outputnya stabil untuk mensupply peralatan outdoor wifi radio.
    berhubung poe-nya mokat jadi pusing nyari adaptor alternatif.
    dah nyoba psu sama adaptor printer ngga kuat buat kabel 15meter.
    tolongin yah...

    makasih
     
  2. boelda

    boelda Moderator Moderator

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    kenapa travonya nggak ditaruh diatas aja bos ? kan akhirnya pake PSU bisa
     
  3. digizer

    digizer New Member

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    ngulur 2 kabel keatas ngga praktis dunk
     
  4. digizer

    digizer New Member

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    mau nanya nih...

    ada rangkaian power supply dengan regulator L7800 series. outputnya dimasukin ke tr 2N3055.
    apa sih fungsi dari 2N3055 tsb?

    thx
     
  5. digizer

    digizer New Member

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    dah ketemu jawabanya...sebagai penguat arus.
    pertanyaan selanjutnya.

    output L7800 itu 1,5A. kalo di perkuat 1 tr 2N3055 output akhirnya jadi berapa Ampere?


    bodo banget :frusty:
     
  6. DUNIAELEKTRO

    DUNIAELEKTRO New Member

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    1 2N3055 = 2 ampere
    jADI kalo Output 1,5 A lewat 2N3055 ya maximal 2 Ampere
    Kalo pengen lebih ya tinggal di pararel, kan misal 4 bh 3055 jadi 2 x 4 = 8 Ampere, begitu bos, tapi di hitung juga tegangan jatuh dioda basis emitor 2N3055 sebesar 0,7 Vollt ( silicon )
     
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  7. mamuk

    mamuk Well-Known Member Super Member

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    emang berapa watt wifi radionya klu pakai kbl yg panjang ukuran kbel harus besar kwalaitas juga harus bagus :)
     
  8. digizer

    digizer New Member

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    oh penguatan 2 Amper
    ya ya sering liat skema yg dobel2 2N3055nya. thx sip.

    nah itu dia,..keburu beli kabel UTP yg biasa..sayang dibuang :D
    seharusnya unk outdoor pake STP tapi gak ada disini
    cuma 400mW aja kok om.
     
  9. deddyes

    deddyes Well-Known Member

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    [​IMG]


    TIPE REGULATOR 78XX = 7805, 7806, 7808, 7809, 7812, 7815, 7818, 7824. UNTUK TIPE 78MXX MEMILIKI ARUS KELUARAN MAX 500mA, UNTUK 78L ARUS MAX 100mA, UNTUK 78 TANPA HURUF ARUS MAX 1A
    UNTUK ARUS 1A TRANSISTOR DAN RESISTOR TIDAK DIPERLUKAN
    TRAFO HARUS MEMILIKI SEDIKITNYA TEGANGAN 4VOLT LEBIH BESAR DARI TEGANGAN KELUARAN
     

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  10. digizer

    digizer New Member

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    thx pak deddy
    oh untuk 1A, TR sama R nya tidak diperlukan
    ic regulator yg >1A apa pak?
     
  11. deddyes

    deddyes Well-Known Member

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    bisa pakai LM350K Itu bisa 3A maksimum
     

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