Voltage controlled voltage source

[rhernandez]

Hi:
I need know how to design a voltage controlled voltage source with isolation in current between input and output. The evident solution is to use a transformer, but I´m searching another using semiconductors and circuits elements.

Thanks.

 

[lrecord]

Need to know more about the requirements:
- Input voltage?
- Input characteristics (DC? AC? Bandwidth?)
- Complete isolation required (including grounds)?
- How hostile is the environment?
- How accurate does the vollower need to be?


Regards,
Les

 

[nbucska]

and how fast ?

<nbucska@pcperipherals.com>