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Patolong po paano gumawa ng 12v power suply using 18 to 20 v tranpormer output

Discussion in 'Appliance Troubleshooting' started by armiah13, Oct 7, 2016.

  1. armiah13

    armiah13 Journeyman Established

    At anong components ang gagamitin para maging 12v ang 18 to 20 v na tranpormer output. Dko kasi alam kong ilang amper tong transpormer na ito kasi malaki din ito..

    Sana may mka tolong sakin ..impor tanti lang kasi to para sa project namn
     
  2. Charger ba yan boss
     
  3. walangmagawa

    walangmagawa Support Team Staff Member Support Team

    [​IMG]

    sa AC in diyan mo ilagay ang output ng transformer mo na 18-20 volts

    kung gusto mo tataas ang ampere niyan mag parallel ka lang ng 3-4 transistor na 2N3055

    kailangang malagay sa heatsink si 2N3055
     
    Tamimaw, CreepyTricks and hanneman like this.
  4. armiah13

    armiah13 Journeyman Established

    Hindi po.... power suply po ..
     
  5. G Flum

    G Flum PHC Master Established

    oo power suppy nga yan
     
  6. Ganun po ba... Sorry boss di ko alam yan pang charger lang utak ko hehehe
     
  7. armiah13

    armiah13 Journeyman Established

    Ahm dko alam kong paano mag paralil po ng transistor po..
     
  8. walangmagawa

    walangmagawa Support Team Staff Member Support Team

    diba ang transistor ay may tatlong paa (base, collector, emitter ) lahat ng base ikabit mo ,lahat ng collector ganun din pati ang emitter
     
  9. armiah13

    armiah13 Journeyman Established

    Boss alam mo kong paano gagawa ng charger sa malalaki na battery ?

    Ahh cge cge po salamt po sa tolong

    Ahm sa plagay nyo po ilang amper kaya tong transpormer na ito. Malaki kasi ito ehh.. Bxta 18v ang outpot nya
     
  10. hanneman

    hanneman Eternal Poster Established

    Kung hindi naman ganun kalaki power requirements, puede rin ito..

    [​IMG]

    The resisitor under the LM317T is 240 Ohms, The resistor that is going to ground is 2K OHM, The Cap to the right is 47uf 35v, And the cap next to the diodes (bridge) is 4700uf 35v. Use 1N4001 rectifier diodes.

    LM317T specs:
    3 pin TO220 package
    DC out 1.2v - 37v [adjustable]
    1.5 ampere rating

    Gamit ka lang breadboard PCB puede na yan, throughole 1 sided lang para sa small circuit kagaya niyan.
     
  11. armiah13

    armiah13 Journeyman Established

    ok po salamt

    ok po salamt po.. ahm pag aralan kopayan kasi nalilito kasi ako... hndi pa kasi ako maronong bomasa ng mga ganyan
     
    hanneman likes this.
  12. hanneman

    hanneman Eternal Poster Established

    Google ka lang ng tutorial pano gumawa/magbasa ng schematic diagram.
     
  13. renan21

    renan21 Addict Established

    Pwede din mag bridge type na powersupply gawin mo yung in3055 ata na diode yung code not sure but better check google for some advices.
     
  14. armiah13

    armiah13 Journeyman Established

    ok po
    ok po salamt po sa tolong
     
  15. Basic lang yan boss.
    eto lang mga kaylangan mo!
    ~4Pcs 2amp diode
    ~10-15k ohms na Resistor
    ~Electrolytic Capacitor with capacitance of 25v and 3000 microfarad.
    ~LED indicator with 3-5k resistor
    ~switch (optional)
    ~fuse (optional)
    .
    Pero pwede rin dalawa ang output voltage na 12v-18v gamit ka potentiometer. (y)
    CreepyTricksCreepyTricks
     
  16. walangmagawa

    walangmagawa Support Team Staff Member Support Team

    pwede yang sinasabi mo tol kong mababa lang ang kailangan pero kong gagamitin sa audio amp. baka masunog ang potentiometer na sinasabi mo
     
  17. Hindi boss meron ding desired na resistance depende sa taas ng voltage.
    .
    Nag aasemble kasi kami ng mga sound system kaya medyo expert na ko ;)

    Ang variable Resistor ang magiging pinaka switch mo kung ano output voltage ang gagamitin mo (y)
     
  18. walangmagawa

    walangmagawa Support Team Staff Member Support Team

    okey .. basta sa akin pag ganyang sitwasyon hindi talaga ako gugamit ng potentiometer na pang dropping sa B+ line lalo na high current ang kailangan
     
    CreepyTricks likes this.
  19. ah yes sir pag B+ talaga malakas ang voltage nya kaya Hot part ang tawag sa kanya (y)
     
  20. walangmagawa

    walangmagawa Support Team Staff Member Support Team

    iba kasi ang hot sa amin boss primary line yan at cold naman ang secondary line pag sa tv. naman dalawang klase ang HOT primary line , and horizontal output transformer
     
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