I have two requirements,

1. I would like to generate 120V biased AC sinusoidal signal with 40V
2. I would like to generate +/- 60V bipolar pulsed DC.

I have 0-270V autotransformer & 0-120V, 3A DC power supply as resources.
I tried combining DC voltage with autotransformer AC supply. My DC power supply blinking short circuit indication LED with no power output.
How to combine both of these power supplies to fulfill my requirements?

I also developed 120V, 6A Unipolar pulsed DC circuit, now i would like to make it bipolar DC.

Please give some suggestions.

 

I have no idea what you mean by unipolar and bipolar DC. And I don't understand what you mean about applying DC to an AC supply. What are you trying to accomplish? More details please.

All voltages are relative to a reference point. Be specific about what you are referencing voltages to.