Dual power supply

Sometimes you'll need more than one voltage levels for testing a circuit. For this reason I created a converter supply for my power supply.
So I used 2 converters DSP 5005 from Joy-it and 1 Buck converter for the fan.
the fan is an usual 80mm x 25mm Fan.The input voltage has a span from 10 - 35 V (only limited by the input voltage of the fan- buck converter.
Output is programmable depending by input voltage (0 - 55V) and up to 5 A for each Output.
The diode will shorten the input by wrong polarity. I use a SL1515 (16A , 40V)
For using other components, I give you also the stp-files.