PCB: LM338 Regulated Snubberized PSU - diyAudio
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Old 21st March 2007, 08:09 AM   #1
yusuf is offline yusuf  India
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Default PCB: LM338 Regulated Snubberized PSU

Attached is schematic and PCB layout of LM338 based Regulated Snubberized PSU.

I am looking forward for your comments before I give it for fabrication.

Thanks
Yusuf
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Old 21st March 2007, 08:11 AM   #2
yusuf is offline yusuf  India
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Attached is schematic.

Thanks
Yusuf
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Old 25th March 2007, 09:21 AM   #3
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I like it.
But... if you plan to pull a few amps from those lm338's. I would recommend larger heatsinks.
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Old 26th March 2007, 03:58 AM   #4
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Snubberized?

=RR=
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Old 26th March 2007, 04:47 AM   #5
jleaman is offline jleaman  Belgium
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What is the rail voltage ? How much current can be draw at a constant ?

Are you going to get some boards made ?
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Old 26th March 2007, 05:20 AM   #6
BWRX is offline BWRX  United States
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Quote:
Originally posted by jleaman
What is the rail voltage?
Whatever you set it to be within the limits of the part.

Quote:
Originally posted by jleaman
How much current can be draw at a constant?
That depends on which part you use. The LM338 is rated for 5A continuous with adequate heatsinking.
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Old 26th March 2007, 08:26 PM   #7
m-tech is offline m-tech  Serbia
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Quote:
The LM338 is rated for 5A continuous with adequate heatsinking.
Yes, but input-output voltage differential must be 10 volts, or lower.
Maximum recomended dissipation is 50W.
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Old 27th March 2007, 01:45 PM   #8
yusuf is offline yusuf  India
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Quote:
Originally posted by redrabbit
Snubberized?
Yes, it has provision for snubber RC component as suggested by carlos.


Quote:
Originally posted by jleaman
What is the rail voltage ? How much current can be draw at a constant ?
Output voltage and current depends on component you use. Please check datasheet of LM338 or LT1083.


Quote:
Originally posted by jleaman

Are you going to get some boards made ?

Yes, I am going to make two 70 micron boards for myself. If someone is interested, I can order for them too. You only pay the charges at actual.

Attached is updated layout with provision of LT1083.

Please provide feedback and any inputs for improving it.

Thanks
Yusuf
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File Type: jpg pcb2.jpg (56.8 KB, 383 views)
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