power supplies in series

[electronicslearner77]

Hi All,
I have this clarification, if I connect two power supplies in series and connect a load of some resistance R, because of this resistance a current flows. Now my doubt is since the load is in series same current flows through the entire circuit, this current is contributed by both the power supplies equally ? or how does the configuration basically work in terms of current contribution by both the power supplies.

Thanks in advance,
Regards,
Satya

 

[kubeek]

Just like with two resistors in series, the current is the same in both, and total voltage is the sum of the separate voltages across each supply.
I suspect you might be somehow mixing in supplied power, which depends on the load current and voltage of each supply as well.

 

[RODALCO]

Check that the outputs are floating. e.g. not connected to earth. Sometimes power supplies have the negative terminal earthed by means of a link.