The above is the schematic for the power supply portion of a board. As a electronics noob, I find it highly confusing and hence would appreciate some help in unraveling this schematic.
The EE13 transformer has 2 secondaries, one for 5v and another for 220v. I would appreciate some insight on the following:
1) What are the diodes on the primary input for?
2) How is the 5v secondary rectified to DC?
3) How is the 220v secondary rectified to DC using the TOP264EG component?