Hey Folks!
Been away for a long time but thought I'd poke my head back around these parts to throw out something I'm working on and seeing if there's any interest.
I'm currently working on a 12v Linear 2000ma Power Supply for my recently acquired MUSE DIR9001+TDA1543x4 DAC to replace the cheap Chinese SMPS wall wart it came with.
Right now I have a breadboard version running with a clean 12v (well, 11.96v
) signal. My goal for the project is to keep the design simple and modular so I can re-use it to power additional devices (5v, 16v, etc.). When everything is said and done the price should be around $150-$125 per unit depending on how good a deal I can get on the enclosure.
If there's interest from folks here I'll do a run of 10-20 of them after I get any design issues works out of a couple prototypes.
Couple design notes:
- Decided to go with a EI Transformer (Hammond) to isolate the circuit from DC noise on the AC line. Toroidal transformers just have issue with it and my goal here isn't to deliver a huge power curve, just a clean one
- The enclosure will have the transformer enclosed in a separate compartment surrounded by EMI shielding material to reduce EMI interference to low power signal cables nearby
- Sticking with reputable component manufacturers like Hammond, STMicroelectronics, Nichicon, etc.
Cheers!