Commercial power supply design

[GeoAVR]

Hi,

I was wondering if there are standard design for commercial programmable power supplies such as these:
https://www.keysight.com/en/pc-1000...multiple-output?nid=-536902293.0&cc=US&lc=eng

Are they based on SMPS or linear architecture?

How can I build one?

 

[kam1787]

perhaps take a step back, and say what you want to build, with the features and capabilities

the other side is your ability - how is your expertise in digital and power electronics?