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Old 23rd October 2017, 09:01 PM   #1
Hogwild is offline Hogwild  Canada
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Default PSA: Chipamp.com snubberized PSU schematic with part numbers

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.
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File Type: jpg Chipamp.com PSU Schematic with part numbers.JPG (76.5 KB, 157 views)
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Old 23rd October 2017, 09:13 PM   #2
levistubby is online now levistubby  United Kingdom
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As has been pointed out in the past, the polarity of C6 is shown the wrong way round.
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Old 23rd October 2017, 09:44 PM   #3
scottjoplin is offline scottjoplin  Wales
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Actually, confusingly, it's the lower bridge that is reversed
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Old 23rd October 2017, 10:37 PM   #4
Hogwild is offline Hogwild  Canada
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scottjoplin:

I'm a total newbie with nearly zero electronics knowledge. If you would please clarify what you mean by that, I will try to fix the diagram.

Last edited by Hogwild; 23rd October 2017 at 10:41 PM.
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Old 23rd October 2017, 11:10 PM   #5
scottjoplin is offline scottjoplin  Wales
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Reverse D3,4,7&8
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Old 23rd October 2017, 11:40 PM   #6
Hogwild is offline Hogwild  Canada
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scottjoplin:

Sorry, not clear. What do you mean by reverse? Do you mean swap label D3 with D8 and swap D7 with D4 or something completely different?
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Old 24th October 2017, 12:22 AM   #7
Nisbeth is offline Nisbeth  Denmark
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PSA: Chipamp.com snubberized PSU schematic with part numbers
Look at the two halves of the PSU - the same connections that give positive output on top give a negative output on the bottom

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.
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Old 24th October 2017, 05:25 AM   #8
Hogwild is offline Hogwild  Canada
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Nisbeth:

I can't really imagine in my mind exactly how that would look. Maybe someone else can change the diagram and re-post?
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Old 24th October 2017, 08:51 AM   #9
Mark Whitney is offline Mark Whitney  Netherlands
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Current only flows in one direction through a diode. Some of the diodes are drawn the wrong way and need to be reversed. This schematic keeps popping up with the same response.
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Old 24th October 2017, 09:11 AM   #10
levistubby is online now levistubby  United Kingdom
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The problem is only with the circuit diagram. The Chipamp power supply PCB is correct.
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