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Old 13th May 2008, 12:53 PM   #11
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Default Re: That PS is interesting

Quote:
Originally posted by ricsmuts
What's it from? Similar layout and I see there is an op amp on that board, looks like a protection circuit.

With all those fets, I think decent size transformers are needed, but I wonder what the minimum is?
It's from a BOSS PD-4000.....

http://www.realmofexcursion.com/ampguts/Boss_PD-4000/

I've only tested it at ~500w continuous so far after "upgrading" some components.

As you can see in the pic there are no input or output filters, so they must not be too critical. I abused the amp for a few years with no problems before deciding to dissect it.
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Old 14th May 2008, 06:27 PM   #12
luka is offline luka  Slovenia
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Hi

Yea I would like to see all to, if you will provide
BTW: Very nice design...how big are those toroids?

Here is my single core design, I will have tu update page with pictures and pcb of completed supply
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Old 14th May 2008, 06:51 PM   #13
djQUAN is offline djQUAN  Philippines
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pardon me for the slight off-topic....

how do you contribute pictures for ampguts? I tried the contact button on that site but didn't get any reply.
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Old 14th May 2008, 07:02 PM   #14
luka is offline luka  Slovenia
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Hi

On top you have Mail me... admin@ampguts.realmofexcursion.com. You send pic to him...
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Old 14th May 2008, 07:22 PM   #15
djQUAN is offline djQUAN  Philippines
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I think I tried that email before. will try it again later. thanks.
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Old 14th May 2008, 09:17 PM   #16
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Default I have completed the design documents for this SMPS

I do NOT have the schematic anymore, but all are welcome to email me for the

1) PCB layout
2) Component list
3) Component layout tagged picture

With this you can build the SMPS just fine

As for the torroinds, I wound them from two smaller cores each, and 6 and 4 strand Litz wire I made myself.

I don't know how to begin to explain how I wound them, it's very complicated to explain here, and better if you have wound similar torroids before, but I will try explain if you email me.
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Old 14th May 2008, 09:22 PM   #17
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Default Very nice design Luka

Nice and neat, very nice work!

I still need to post the 2 channel amp I made for this power supply, not my own design but another modified one using 20X TIP35/36C Transistors, 10 Per channel.

It's a similar layout to the power supply and the two are designed to fit in the same chassis.
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Old 14th May 2008, 09:24 PM   #18
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Default email address

Just realised my email was blocked from here, I have now fixed the problem.

Appologies to anybody who has tried to email me.
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Old 15th May 2008, 05:23 AM   #19
luka is offline luka  Slovenia
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Hi

Thanks...

One more thing, I think I will be easyer for you if you post those things, PCB and all, since I thing there will be many people asking for it

Few things I would like to know:
1. what is the freq.
2. is that 1mm wire
3. do you really need 8 fets pet trafo (since each IRFZ an let say conduct 35A, 8test on whole board at conduction at same time = 8x35A * 12v = many kw) When you say it was over build you weren't kidding aroung, fets alone can cost much... Nice job again
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Old 15th May 2008, 12:28 PM   #20
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Would either of these cores be suitable for this design? I believe they are T-184 size.

Click the image to open in full size.
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