A programmable driver on a PSoC5: onboard interrupter, a command line, USB-MIDI, autotuning, master/slave. The repository is still active.
The hardware is in a separate repository from the firmware, and it is the less complete of the two. The schematic sheet has the parts a UD3 should have: a CY8C5868AXI (the PSoC 5LP itself), MIC4426 gate drivers, TL082s, a ULN2003LV driving the relays and a TC7662B. The nets are named GDT2, CT, CP, UMEAS and THERM, which match the driver’s documented features: primary current measured over a feedback CT, temperature sensing, and relay control for inrush. But the title block is empty (no author, no date, no revision), and the author labels the repository “not finished”. It is linked here as an unfinished design, not as the UD3 schematic.
Sources
- github.com/Netzpfuscher/UD3 (firmware)
- github.com/Netzpfuscher/UD3_Kicad, the hardware sheet: unsigned, undated, marked “not finished” by its author
- commongnd: the UD boards
This is the card from the driver tree, written from what the builder published. Send corrections through the forum.