On Wednesday 05 July 2006 10:52, Nate Duehr wrote:
> On Jul 4, 2006, at 10:59 PM, Palaniappan C wrote:
> > Hi all,
> >
> > I want to shift a analog signal 5v down (or subtract 5 v).
> > I found clipper and clamper circuits using diode and additional
> > voltage source.
> > Is there any solution without using additional voltage source ?
>
> How much current?  From what starting voltage?
>
> You're going to have to be a little more specific about what you're
> attempting to do -- the number of answers you'll get from this crowd
> will amaze you, unless it's something really really obviously solved
> by a standard circuit.
>

Thanks Duehr, 
The input signal is 20v peak-to-peak (-10v to +10v)  ac 14Mhz rf signal.
and i want to shift it to ( -15v to +5v ).  I looking for a way to do it 
without using additional power supply.

regards,
palani


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