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engraxate
Joined: 02 Sep 2001
Posts: 71
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 24 Jan 2003 15:30 need 12V ~ 10A power supply |
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I have to make 12V ~ 10A power supply, but I have no idea how to do that.
Any idea are welcome.
thanks
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barrybear
Joined: 22 Nov 2001
Posts: 254
Helped: 5
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| 24 Jan 2003 15:40 |
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My choice would be to use 10 1.5 amp LM 317 adjustable + regulator`s
Well heatsinked set to deliver 12v. Use a 0.3 ohm resistor on each output to maintain equil current flow through each regulator.
Ensure that your transformer / rectifiers / smothing are capable of suporting 10 amps current flow.
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rampo
Joined: 03 Nov 2001
Posts: 28
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| 24 Jan 2003 16:07 Re: need 12V ~ 10A power supply |
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Loot at www.st.com and search "L4970". I use its to create a very good switching power supply up to 10A
| engraxate wrote: |
I have to make 12V ~ 10A power supply, but I have no idea how to do that.
Any idea are welcome.
thanks |
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| Back to top |
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picnut
Joined: 16 Apr 2002
Posts: 16
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| 25 Jan 2003 21:30 |
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Do you need a regulated supply or an unregulated one?
A cheap way of getting an high power unregulated supply is to buy a car battery charger - they are often cheaper than the cost of a transformer by itself! They are normally rectified but not smoothed, so you need to add a large capacitor on the output.
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bunalmis
Joined: 03 Jan 2003
Posts: 251
Helped: 4
Location: Turkey
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| 27 Jan 2003 11:23 Re: need 12V ~ 10A power supply |
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You can modified the 5v output of PC Power supply.
Which components ?
- Switching transformator.
- Rectifiers, inductance and capacitors of secondary side of trf.
- feedback unit.
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captainkirksdog
Joined: 17 Dec 2002
Posts: 21
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| 27 Jan 2003 15:19 Check this out... |
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Try this link...
[h**p://control.gsnu.ac.kr/~f007dan/cicuit/homepage.htm#menu]
I looked at it and I think you might be able to get what you want here. Good luck. <ckd>
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jzaghal
Joined: 31 Jul 2001
Posts: 213
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| 27 Jan 2003 21:13 |
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Hi,
Check the ARRL manual for what you want.
Bye.
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netboy
Joined: 10 May 2001
Posts: 213
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| 27 Jan 2003 23:25 |
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Hi engraxate
Try this link he are many ideas
http://www.commlinx.com.au/schematics.htm
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tanveerriaz
Joined: 14 May 2001
Posts: 262
Helped: 6
Location: Pakistan
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| 28 Jan 2003 2:06 |
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modified the PC Power supply
h**p://www.qsl.net/vk4ba/projects/index.html
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