I’m going to annotate these power supply pictures, much like the ones I have on Github. I wanted to post them here in their original quality, unmolested. This way, if there is something someone is really trying to see, it won’t be blocked by the annotations (just the poor image quality).
BOARD_A
This board has voltage selection/power factor correction, provides the 400VDC used by all the other supplies, and the 12VDC accessory supply (everything outside the power supply that needs 12VDC).
TOP VIEW
BOTTOM VIEW
BOARD_B
This board has a 12VDC supply that drives a DC-DC converter that supplies 3.3VDC and 5VDC. It also has a separate supply that provides 40VDC and 60VDC, and another supply that provides the high voltage (driven by the 60VDC supply).
TOP VIEW
BOTTOM VIEW
ISOLATOR
This board isolates the high and low side for the 12VDC accessory supply on BOARD_A.
SUPERVISOR
This is a supervisory control/isolation board. It runs the supplies on BOARD_B.
DC-DC CONVERTER
This board converts the 12VDC supplied by BOARD_B into 3.3VDC used by the CNC control board and 5VDC used by the power supply supervisory circuits.
HV SUPERVISOR
This board controls the HV supply.
TOP VIEW
BOTTOM VIEW