Hi Paul,
You seem to be confused in this area. An "H bridge" is a circuit used to drive an electric motor in either forward or reverse. I think you meant to say a "diode bridge" or "rectifier bridge",
I think you found my confusion 
I was actually referring to the Bridge rectifier (LINK). I did not realize there are more number of setup in the name bridge. I called this H bridge as for some reason the diode arrangements appears like H.
Regards,
S.Sudharsan