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PSA: Chipamp.com snubberized PSU schematic with part numbers

Hogwild

Member
2010-10-08 4:46 am
Hi everyone:

I've received so much help from you all on my Chipamp project, that I thought I'd make an (albeit small) contribution back. Here is a pic. of the Chipamp.com PSU with part numbers on top, as well as the LED power light indicator circuit and parts.



Hope this helps someone.
 

Attachments

  • Chipamp.com PSU Schematic with part numbers.JPG
    Chipamp.com PSU Schematic with part numbers.JPG
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Nisbeth

Member
2001-01-29 9:58 pm
Denmark
Look at the two halves of the PSU - the same connections that give positive output on top give a negative output on the bottom :D

Leave C6 and the other components as they are, but connect the D3/D7-node to the negative side of C6 and the D4/D8-node to the positive side.

/U.
 

turion64

Member
Paid Member
2019-03-16 6:00 pm
Trenton, NJ
I think both the schematic and the PCB are correct. If you measure the DC at the outputs you’ll find the +/- orientation is exactly the same even though the outputs are marked (from left-to-right) as V+/PG+ then PG-/V- If you reverse the polarity of your probes you’ll measure the direct opposite polarity from the V/PG outputs on their respective sides. https://www.electronics-tutorials.ws/diode/diode_6.html
 

phase

Member
2004-10-04 11:59 pm
Will likely work better if the snubber components are connected closer (directly) to the rectifier diodes (source of hf shot noise) and not at the opposite end of the board, inches away from them and the added inductance of the filter capacitors as well.

Pretty nice to have a board with everything on it though, much cleaner looking than some of my setups!
 

phase

Member
2004-10-04 11:59 pm
That write up is odd to say the least, couldn’t figure it out really.
Starts out describing what happens, then claims it doesn’t matter...

I trust my ears and suggest that others do the same, could save yourself a lot of money and hassle possibly too it appears.
 
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