Brushless Controller
March 3, 2024
Dagor Alpha Controller is back and I'm blogging about it!
After a few years that is fair to say affected most of us, and one might even say it played its part in disrupting the semiconductor industry, Dagor Controllers are back in action! Parts are available again and I have the time to keep pushing the project, I'll be documenting updates in this blog.
The board has since been revised to version Alpha 2.6 with the following changes:
Mounting holes have exposed plated copper instead of being covered by silkscreen, the idea behind this was to avoid the silkscreen getting scratched by the screw being tighten down and potentially short the GND plane to the devices chassis. I left GND disconnected to the plated mounting holes and I haven't seen a reason to couple to chassis, but I might leave the option to loosely couple with a capacitor and a big resistor to the GND net in a next revision.
The LEDs were rearranged to avoid the POWER LED to bleed into the viewing hole of the Status LED. The three LEDs are not colinear and it looks better in my opinion.
The two inner layers, GND and PWR planes were bumped to 1oz copper instead of the default 0.5oz copper in JLCPCB.
Due to availability, the angular position sensor was changed from the AS5147 to the AS5047P. Drop in replacement, no appreciable performance difference.
The GND and VD inputs now offer mounting holes in the 2.54x2.54mm grid fashion that allows connecting daughter boards (more on this later).
Added decoupling capacitor to temperature sensor.
