powerx
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« on: March 02, 2010, 09:08:47 AM » |
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Hello po sa lahat. Ask ko lang po kung paano ko gagawin eto kasi baguhan lang po ako sa electronics world  Meron kasi akong traffo na 12v - 0 - 12v @ 12amp at gusto ko sanang gamitin para sa car audio (bongga!  ) Ngayon ang gusto ko mangyari paano po ung wirings nya? Ano po ung pangalan ng diode na rated para sa 12+ampere? Kung pwede paano ko siya gawing regulated if ever? or full wave na lang. Pakidraw naman po ung schematic pls. Naghihintay ng kahit anong suggestion and comment thanks.... lab u elab.ph  |
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The Philippine Electronics and Technology Forum
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« on: March 02, 2010, 09:08:47 AM » |
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alyas
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« Reply #1 on: March 02, 2010, 09:16:57 AM » |
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Ang pagkakatanda ko eh, sa design, ang rule of thumb eh you always get the values twice that of the requirement (Huwag lang sa mga protective component like fuses, etc). So kung 12A ang requirement mo, better get a rectifier diode or bridge with at least 24A rating.
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alyas
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« Reply #2 on: March 02, 2010, 09:23:02 AM » |
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Punta ka sa link na to so you can have some idea about what diodes to use and their rating. Sa ganyang kalaking didoe, power diodes na ang mga iyan and heat sink mountable na. http://futurlec.com/DiodesPower.shtml |
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ajrob
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« Reply #3 on: March 02, 2010, 10:25:43 AM » |
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ilang voltage ba kelangan mo na output?
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rdpzycho
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« Reply #4 on: March 02, 2010, 10:40:58 AM » |
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tama, dapat derated 'yung diode, kapag sakto kasi, masisira 'yun sa peak draws nung amp. tanong mo rin 'yung malalaking rectifier bridge na naka-package na. nasa 20A to 30A ang capacity nun.
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"Keep on starting, and finishing will take care of itself."
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powerx
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« Reply #5 on: March 02, 2010, 02:55:45 PM » |
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ilang voltage ba kelangan mo na output?
atleast 12v up to 16v po sana @ 12ampere |
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Woots29
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« Reply #6 on: March 02, 2010, 05:25:33 PM » |
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dapat 12v lang kasi car audio eh
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maldihtah13
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« Reply #7 on: March 02, 2010, 07:10:30 PM » |
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Marami diode sa raon. Screw base
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powerx
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« Reply #8 on: March 02, 2010, 08:39:45 PM » |
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Marami diode sa raon. Screw base
taga province po kasi ako eh |
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powerx
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« Reply #9 on: March 03, 2010, 06:57:08 PM » |
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elow po ulit nakabili na po ako ng brigde na diode @ 150pesos rated 30a daw.
nailagay ko na pero 24 volts kasi eh weeeeeeeeeee
pano po gawing 12 up to 16v @ 12 ampere un?
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krazeneth
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« Reply #10 on: March 03, 2010, 07:35:09 PM » |
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@powerx... Regulator lng po or LM317 tapos add ka ng mosfet para makapadaloy ka ng 12Amp para sa desire output voltage mo.  |
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rdpzycho
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« Reply #11 on: March 03, 2010, 07:40:42 PM » |
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paano ang connection? dapat 0 at 12 lang.
tapos ang output niyan around 18V to 20V+ unloaded.
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krazeneth
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« Reply #12 on: March 03, 2010, 07:50:36 PM » |
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paano ang connection? dapat 0 at 12 lang.
tapos ang output niyan around 18V to 20V+ unloaded.
Kala ko sir para sa akin tong question...hehe.. Sir. rdpzycho diba mahahati ang power kung 0 and 12 lng ang gagamitin nya sa Transformer nya, magiging 6Amps na lng max power nya, hindi rin kasi ako sure pero interesado ako malaman din... |
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powerx
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« Reply #13 on: March 03, 2010, 08:28:57 PM » |
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Kala ko sir para sa akin tong question...hehe.. Sir. rdpzycho diba mahahati ang power kung 0 and 12 lng ang gagamitin nya sa Transformer nya, magiging 6Amps na lng max power nya, hindi rin kasi ako sure pero interesado ako malaman din...
may point ka po sir. hmm |
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rdpzycho
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« Reply #14 on: March 03, 2010, 09:03:51 PM » |
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same current pa rin ('yun 'yung rating ng wire), pero 'di fully utilized 'yung core dahil kalahati lang ng winding ang ginamit. pwede namang gawin, full wave pero hindi bridge para ma-utilize ng buo 'yung core.. ang connection using the square bridge type rectifier, both ends ng transformer sa AC, DC positive sa load, then 'yung DC negative naka-float, sa 0 nung transformer ikakabit 'yung negative ng circuit. |
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"Keep on starting, and finishing will take care of itself."
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Woots29
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« Reply #15 on: March 04, 2010, 03:11:39 PM » |
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elow po ulit nakabili na po ako ng brigde na diode @ 150pesos rated 30a daw.
nailagay ko na pero 24 volts kasi eh weeeeeeeeeee
pano po gawing 12 up to 16v @ 12 ampere un?
yung bridge diode pwede mong gamitin yung 2 diode nya lang den yung 0 sa trafo ang negative mo float na yung negative EDIT: sinabi na pala ni sir rd tungol jan |
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rdpzycho
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« Reply #16 on: March 04, 2010, 03:16:41 PM » |
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'yan may illustration na. |
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"Keep on starting, and finishing will take care of itself."
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Woots29
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« Reply #17 on: March 04, 2010, 03:17:58 PM » |
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Kaizer03
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« Reply #18 on: March 04, 2010, 03:24:22 PM » |
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this might help you regarding bridge rectifier circuit=) http://www.tpub.com/neets/book7/27c.htm |
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Lend a hand for those who are in need!=) Stop Hijacking!=) More Technical Posts!=) DataSheets are enough to answer your questions! Kaizer Killer EX Pre-Alpha |
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DigitalMind
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« Reply #19 on: March 04, 2010, 03:41:04 PM » |
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yung bridge diode pwede mong gamitin yung 2 diode nya lang den yung 0 sa trafo ang negative mo float na yung negative EDIT: sinabi na pala ni sir rd tungol jan naalala ko yung vacuum tube days...  |
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November 13, 2008, 01:18:20 PM
