REV D Hardware¶
The 4th revision of the AMDC hardware is a major design change compared to the previous hardware design. REV D introduces a drastically smaller PCB form factor with a more compact layout. The PCB stack-up is increased from 4 to 6 layers to accomidate the smaller PCB area. Overall, the layout component density is increased to about 50% – much higher than previous revisions.
Functionally, the REV D design removes half the integrated analog input channels, reducing from 16 to 8 differential inputs. This saves space, but also limits the hardware capabilities since advanced motor drives often require many more than 8 analog inputs. To that end, an external sensing platform is designed which integrates with the AMDC via the new GPIO expansion ports.