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Old 21st October 2017, 08:56 AM   #11
aakkonen is offline aakkonen  Finland
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Join Date: Oct 2017
Quote:
Originally Posted by Stammheim View Post
Click the image to open in full size.
I was examining this and the LT3045 datasheet. I would expect that the chip outputs will be all connected together - so just a dot missing in the circuit diagram?
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Old 23rd October 2017, 08:02 AM   #12
szczemirek is offline szczemirek  United Kingdom
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I'm interested in the finished board if you have. Cheers
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Old 23rd October 2017, 08:57 AM   #13
Stammheim is offline Stammheim  Germany
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Oh yes, there is just a dot missing. Yes, the 3 LT's are connected together.

@szczemirek
Thanks, I'll pm you...
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Old 23rd October 2017, 03:11 PM   #14
aakkonen is offline aakkonen  Finland
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Quote:
Originally Posted by Stammheim View Post
Oh yes, there is just a dot missing. Yes, the 3 LT's are connected together.

@szczemirek
Thanks, I'll pm you...
Alright! I'll go for an assemblied board aswell
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Old 28th October 2017, 03:24 PM   #15
Stammheim is offline Stammheim  Germany
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Join Date: Jul 2012
Because sometimes a single power supply is needed, I created a single version of this LT3045 board.

Measures are the same, few parts changed to meet the needs... ultrasoft and ultrafast diodes, polymer capacitors at the output.

So 6 parallel LT3045 working makes 3A, the footprint is modified for easier soldering. Still adjustable from 0-15V output voltage.

A great ps to power several devices like DAC's, preamplifiers or small amps or headphone amps.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.


Click the image to open in full size.

Single and Dual boards are available for 12€ each.
For less experienced users the presoldered version (with 6 LT3045 published) is available for 72€.
The completely finished and tested boards are also available:

Dual ps: 132€
Single ps: 138€

Last edited by Stammheim; 28th October 2017 at 03:30 PM.
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Old 5th November 2017, 08:40 PM   #16
Shutdown98 is offline Shutdown98  Netherlands
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Location: Zutphen, Netherlands
A complete double ps board for me please
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RPI with Allo DigiOne > S/PDIF > Hypex FA 253 > borrowed speakers (building OBL-15 with Viawave GRT-145)
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Old 9th November 2017, 07:10 PM   #17
fibonacci1618 is offline fibonacci1618  Singapore
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I'm interested in a finished board too. Please PM me to send me further details on how to buy this. Thanks!
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Old 9th November 2017, 08:11 PM   #18
Shutdown98 is offline Shutdown98  Netherlands
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Location: Zutphen, Netherlands
Voltage drop of the LT3045 is very low
What input Voltage is needed for 12Vdc and 5Vdc output with these boards?
I might go for custom made transformers
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RPI with Allo DigiOne > S/PDIF > Hypex FA 253 > borrowed speakers (building OBL-15 with Viawave GRT-145)
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Old 13th November 2017, 09:59 PM   #19
Stammheim is offline Stammheim  Germany
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Join Date: Jul 2012
Hi Shutdown,

Sorry for late response, I usually watch out for pm's

Yes, voltage drop is very low, but remember ripple which increases with heavy load. So if you want to keep the heatsink cold and need only few mA, 1V DC might be OK, if you need full power, 12V AC might be good for 12V DC.

If you have an oscilloscope just try it out with different load.

Regards

Stammheim
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Old 23rd November 2017, 06:31 PM   #20
mug07 is offline mug07  Canada
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I am interested in the finished single ps - 3A.
Please PM for procedure.
thanks
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