Looking at these two power supplies from an internal perspective is somewhat interesting.
I know the 555 has the duel supplies that is utilised for the NDS/ND555 but obviously it looks like there is a lot more going on under the 555 than just that compared to the XPS.
Anyone able to explain what’s what, the XPS is somewhat empty in comparison.
The XPS uses four transformer secondaries, bridged diode rectification, six smaller reservoir capacitors & six regulators.
The 555PS uses a larger transformer with five secondaries, individual diode rectification, seven larger reservoir capacitors, seven regulators & a more complex discharge circuit. The design allows for greater separation of the supplies for the digital & analogue domains.