Quote:
Originally Posted by jhersh
Fear not. This is an artifact of the back-drive protection on this supply. The current path passes through a diode when the load is low. When the current is detected to be enough greater than 0, a FET is switched on and the diode is bypassed. This means that at no load the output looks low, but as soon as there is a load, the voltage climbs to 6V.
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That's good information to have.
For teams that just want to use the system as a black box and care little about the details inside it, the engineering of this power supply is great. It's the teams that put a lot of effort into understanding and analyzing that could get tripped up without having a good low-level description of how it works.