3 Phase Controller V0.2 & V0.3
After the moderate success of the version 0.1 build of the 3 phase controller, I got to work on the next iteration. I was now confident enough to use an IC package with no leads. The DRV8323R was the obvious choice after this development. It can do everything that the DRV8203 can do (and more) in a smaller package. The additional features include one more current sense signal amplifier (this can help with detecting a short or leakage current in a 3 phase motor) and the option between parameter setting via SPI or passive components. This is the VQFN48 package I came up with a list of improvements that I wanted to see in the board: Get an assortment of resistors to change dead time with Correct the spacing for the block terminal and THT capacitor footprints Get rid of all thermal reliefs in the power part of the board Design for greater current flow and heat dissipation Use an XT-30 connector for power Enlarge the phase holes Breakout 3V3 f...