Hello. I am trying to understand a few different power supply designs. I have included 2 schematics which I have found on the web.

The first I think is a typical "uni-polar" design, is this correct?

The second I think is a typical "bi-polar" design, is this correct?

Basically, I am trying to design a power supply. I think a good starting point is to figure out what its basic design is going to be. If I did indeed correctly identify these 2 diagrams as uni-polar and bi-polar ones, Id like to know the advantages and disadvantages of each design.

Thanks

-Chris P

The first I think is a typical "uni-polar" design, is this correct?

The second I think is a typical "bi-polar" design, is this correct?

Basically, I am trying to design a power supply. I think a good starting point is to figure out what its basic design is going to be. If I did indeed correctly identify these 2 diagrams as uni-polar and bi-polar ones, Id like to know the advantages and disadvantages of each design.

Thanks

-Chris P