Hello.
I have recently received all the parts of a soon to be adjustable power supply based on a DPS3005 unit from ebay, I got a DPS3005, a custom metal enclosure and a offline 36V @ 5A SMPS module(which fits perfectly in the DSP3005 custom case).
Here are links the the exact products I have:
DPS3005EnclosureSMPSI still don't understand how to actually attach a picture and then use the "Insert image" option to insert it into a post but I will attach pictures, the first is showing all of the components that I might come to use(in the picture there are a mains EMI-filter that I first thought to use but I will probably not bother with it because why would it be effective for a converter who's frequency I don't even know...)
The SMPS unit fits perfectly in the case as can be seen in the second
picture, so what I will do is to put the SMPS into the box and connects it's output to what was supposed to be the input to the box which also drives the fan somehow(I got a little circuit board in the enclosure but no directions what so ever, and there are more places on the PCB to connect everything to than one, I have emailed the seller who never returned a answer) and rework the back plate to fit one of those 3-pin mains connectors used on ATX PC power supplies, and then somewhere on the case fit a new 250V @ 6,5A switch which will be the main on/off switch feeding the SMPS.
This will make the finished enclosure into a power supply that can be connected directly to the mains and output 0-32V @ 5A, which would be great.
However I am a little uneasy about what to do about the SMPS mains side, and the PE-GND.
The SMPS unit have those mains voltage X/Y capacitors on the input, which needs to be connected to PE-ground, but then I should also connect the enclosure itself to PE-ground right?
The problem is that it is not conductive, I don't know anything about metals and surface treatments but it does not conduct so I thought to take a tool and sand away the non-conducting surface and then somehow ensure a connection to PE-ground.
I don't really like that solution, but does anybody have any other idea?