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Author Topic: power supply  (Read 3526 times)

Offline striker_24

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power supply
« on: August 20, 2008, 10:13:08 PM »
Pwede po bang humingi ng idea or design kung pno gumawa ng POWER SUPPLY?

12Volts po ang maximum tpos 1Ampere ang current..

Salamat sa mga tutulong! ;)


striker_24
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power supply
« on: August 20, 2008, 10:13:08 PM »

Offline beginner wan

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Re: power supply
« Reply #1 on: August 20, 2008, 10:15:41 PM »
pwede ka gumamit ng 7812 na regulator... or LM317, pwede din.. ;D
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Re: power supply
« Reply #1 on: August 20, 2008, 10:15:41 PM »

Offline rdpzycho

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Re: power supply
« Reply #2 on: August 20, 2008, 10:16:34 PM »
transformer, rectifier, filter capacitor, then 7812. ;D na-post na pala ni wan. ;D
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Re: power supply
« Reply #2 on: August 20, 2008, 10:16:34 PM »

Offline mArKhAo

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Re: power supply
« Reply #3 on: August 20, 2008, 10:17:11 PM »
pwd dn ung madaming secondary winding. hehe, ung mano mano ung switch, ganun ung una qng power supply e. hehe
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Re: power supply
« Reply #3 on: August 20, 2008, 10:17:11 PM »

Offline rdpzycho

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Re: power supply
« Reply #4 on: August 20, 2008, 10:18:09 PM »
hehehe. ganun din supply ko. improved na ngayon dahil may regulator na. ;D
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Re: power supply
« Reply #4 on: August 20, 2008, 10:18:09 PM »

Offline p®otocol

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Re: power supply
« Reply #5 on: August 20, 2008, 10:48:52 PM »
what is 7812???
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Offline mArKhAo

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Re: power supply
« Reply #6 on: August 20, 2008, 10:52:26 PM »
78L12 isang uri ng 3-terminal regulator kung saan 12 volts ang output nya. at ang input ay mga 24volts? hehe, nsa datasheet nmn po un. ;)
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Offline p®otocol

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Re: power supply
« Reply #7 on: August 20, 2008, 10:55:08 PM »
dc to dc poh b un??
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Offline paranz

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Re: power supply
« Reply #8 on: August 20, 2008, 10:55:19 PM »
^ it is a voltage regulator IC

7812 yung generic name that can supply a +12V and 1 A max current typical, though some other 7812 IC versions can provide 1.5A

meron din 78L12 which can only provide 100mA

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Offline p®otocol

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Re: power supply
« Reply #9 on: August 20, 2008, 11:02:22 PM »
ah i see! thnx..!
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Offline paranz

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Re: power supply
« Reply #10 on: August 20, 2008, 11:08:11 PM »
just refer to your favorite electonics design textbook for more detailed discussion ;)
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Offline striker_24

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Re: power supply
« Reply #11 on: August 20, 2008, 11:35:11 PM »
slamat po sa lhat! Kya lng,la akong idea sa pggwa e..pwede po bng mkhngi ng suggestion bout sa design?
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Offline paranz

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Re: power supply
« Reply #12 on: August 20, 2008, 11:41:00 PM »
sa mga textbooks, nandoon na yung discussion sa theory, formula, circuit operations as well as the PS circuit itself ;)
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Offline striker_24

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Re: power supply
« Reply #13 on: August 20, 2008, 11:45:41 PM »
anong specific pong book? :D
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Offline paranz

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Re: power supply
« Reply #14 on: August 20, 2008, 11:48:20 PM »
any electronics textbooks

boylestad
floyd
neamen
etc
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Offline striker_24

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Re: power supply
« Reply #15 on: August 20, 2008, 11:51:38 PM »
ok sir..tnx poh!

pwede mo rin po ba akong m2lungan sir bout dito?

Code: [Select]
http://www.electronicslab.ph/forum/index.php?topic=4201.0
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Offline mArKhAo

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Re: power supply
« Reply #16 on: August 21, 2008, 01:19:07 AM »
bakit kailangan mo pa ng resistor bank ???
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Offline striker_24

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Re: power supply
« Reply #17 on: September 11, 2008, 10:33:21 PM »
Quote from: mArKhAo on August 21, 2008, 01:19:07 AM
bakit kailangan mo pa ng resistor bank ???

project din po kc nmin ang rsistor bank e..pwede mo ba kong mtulungan sir?

lamat!


nu po pla ang lhat ng mga kkailanganin sa pggwa ng power supply?
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Offline beginner wan

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Re: power supply
« Reply #18 on: September 11, 2008, 10:46:07 PM »
Quote from: rdpzycho on August 20, 2008, 10:16:34 PM
transformer, rectifier, filter capacitor, then 7812. ;D

ayan ang kailangan mo..  ;D
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Offline ferdie444

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Re: power supply
« Reply #19 on: September 12, 2008, 02:50:07 AM »
@ striker_24,another option is to use transistor and zener diode.

parts list:
T1-transformer 220vac/7.5vx2(c.t.)@ 1A
D1-4 or bridge type diode 2a/50v rectifier
C1-2,200uf/25v or 4,700uf/25v electrolytic cap./filter(input)
C2-470uf/16v electrolytic cap./zd1 filter
C3-1000uf/16v filter out cap.electrolytic
R1-390 ohms/.5w carbon
Zd1-12v/.5w zener diode
Q1-C1060 regulator x'tor w/ heatsink

thanks @ sana makatulong......

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Re: power supply
« Reply #19 on: September 12, 2008, 02:50:07 AM »
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