Need some help with DC/DC converters

MCenderdragon wrote 04/04/2019 at 07:09 0 points

I have a solar panel outputing at most 8V, but because this is to much I used a DC/DC to step it down to 5V. Now the problem is I dont need the DC/DC when the solar panel only outputs 5V and less (the DC/DC starts to work at around 6V). For now I have this circuit:

My idea is to bridge the DC/DC when I have less then 6V maybe by using a Zener-Diode, and a MOSFET, but dunnno if thats the best solution.