# Analysis of the effect a opposing voltage source has to a buck-converter's output?

I have two voltage sources Vps and V1 connected in series:

simulate this circuit – Schematic created using CircuitLab

There is also Load(1) connected which I believe is in series as well, and there is another load(2) that would require a a higher current and lower voltage(less than Vi which I believe is V1 + Vps), hence the use of a buck-converter. What would change if I've introduced another voltage source opposing the output voltage like so:

simulate this circuit

V2 is opposing the output voltage (Vo < V2 < Vi) and reducing the output current(Io), how would V2 affect the output and input variables(Vi,Ii & Vo,Io)?

I could not analyze this circuit, and think of the net voltage to load(2), or how the input voltages would be effected(Vps&V1).

• I cannot think of a useful circuit which looks like this... Especially the Load1 bugs me. Because of that load you never know what input voltage you are using with your buck. I wish you fun and luck designing that buck ;). – jwsc Dec 2 '15 at 7:34