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Old 24th July 2005, 06:09 PM   #1
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Default OPA627 Pre with onboard regs

In this neverstopping preamp thing I tried to draw a one-channel OPA627 without a buffer but with onboard PSU & LM317/337
I tried to make it with a starground (or at lest I think so )
What do you think, would this work? or is the "starground" just a waste?
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Old 24th July 2005, 08:06 PM   #2
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I'm sorry I cann't help you, but i'm completely stuned by your 3D PCB design.... wwaauuuaaaawwww how did you do that?
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Old 24th July 2005, 08:18 PM   #3
DcibeL is offline DcibeL  Canada
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I am no expert at PCB design, but that looks fantastic. I love the look of those nice curvy tracks.
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Old 24th July 2005, 08:34 PM   #4
gamma is offline gamma  Sweden
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tobias_svensk: I have to say it looks graet...BUT I find an error in the layout (I think)....cupper trases at the "component side" is a trouble...take a look on the capacitors....it's impossible to solder...isnt it?
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Old 24th July 2005, 08:42 PM   #5
DcibeL is offline DcibeL  Canada
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You are correct. Tracks at the capacitors and the connectors will have to be changed.
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Old 24th July 2005, 09:35 PM   #6
VT67 is offline VT67  Belgium
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As far as I can see it, that is a two layer board so all the holes will be plated through. Therefore it's not a problem on the elco's and connectors. The only thing I would change are +/- traces. Now they are starting from the big elco. I would make the trace between the elco and the filmcap wider and let the two traces going towards the op-amp start from the pad of the filmcap and not from the elco.
For the rest, nice idea Tobias.

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Old 24th July 2005, 09:43 PM   #7
tmblack is offline tmblack  United Kingdom
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Absolutely stunning work.
Please tell us what software can produce this 3D artwork.

Tom
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Old 24th July 2005, 09:43 PM   #8
DcibeL is offline DcibeL  Canada
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I guess I am just used to the PCB milling machine I used at school, which did not have hole plating capabilities. Tracks had to be where they could be soldered to, and via holes had to me manually filled. But yes, provided the holes are plated, you will be fine.
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Old 24th July 2005, 09:57 PM   #9
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Great Work Tobias. As always I really like it.
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Old 24th July 2005, 10:01 PM   #10
VT67 is offline VT67  Belgium
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Quote:
Please tell us what software can produce this 3D artwork
It's called Eagle 3D. You also need PovRay the generate the 3D image. I have been playing around with the software but so fare I haven't being able to generate a 3D image yet. Tobias is a little bit better in it than I am.
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