| Electronics > Projects, Designs, and Technical Stuff |
| My Lab PSU project - open source! |
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| nemail2:
Hi I wanted to share my Lab PSU project with you because some of you helped me with it and also I acquired a huge part of my knowledge from EEVBlog. Specs: 0 - 20.48V output controllable in 5mV steps 0 - 4096 mA output controllable in 1mA steps Around 0.1% accuracy due to high accuracy components 12 Bit DAC 12 Bit ADC Low Ripple, Low Noise Separate linear, software-adjustable voltage regulator for fan speed control to avoid high frequency switching noise (PWM) One Board solution (toroidal transformator not onboard) Optional Front Panel for Display, rotary encoder, button and LED mounting Fast UI thanks to Teensy's 120 MHz frequency Header for Wiznet W5500 Ethernet module (SPI interface header, basically, plus some I/O pins) https://github.com/mamama1/LabPSU_Darlington Took me about half a year to develop this in my spare time + write some code (yet to be released). However the code really isn't polished and neither it is very advanced yet. But it works quite well! Nice additions like velocity control for the rotary encoder are missing, unfortunately. Suggestions, Issues on GitHub, Pull requests are very welcome! |
| t1d:
Nice job. I did not find a schematic drawing, on the link. I guess I missed it. Please post it, on this thread. |
| nemail2:
Thanks, schematic is here: https://github.com/mamama1/LabPSU_Darlington/tree/master/Hardware Or did you mean as PDF or PNG? Here you go (also uploaded to github): |
| t1d:
--- Quote from: nemail2 on November 17, 2018, 02:47:06 am ---Here you go (also uploaded to github): --- End quote --- Ahh..., that's much better; thank you. Nice schematic. What program did you use, to draw it? |
| nemail2:
Thanks but to be honest I don't like it very much. I'm no professional but I think this is rather unstructured and how you doin, however not as bad as the Haasoscop one's :-DD https://youtu.be/2Z3URu9vQBk?t=1405 I made everything with Eagle. |
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