I'm sure this will fit the bill
http://www.national.com/pf/LM/LME49811.html
Regards
Roland
On 01/04/2008, Jon Elson <[EMAIL PROTECTED]> wrote:
>
> Gene Heskett wrote:
> >
> > There are no caps on a class D output, in fact the circuitry is isolated
> from
> > as much capacitance in the load as possible with an inductor. Anything
> over
> > 10 pfs or so just wastes switching power in the active parts and can
> lead to
> > the destruction of the parts.
> >
> > For small power requirements, say 40 watts, Ramsey Electronics has a
> little 2"
> > square, no heat sink required, 40 watt class D amplifier featured rather
> > prominently on the front page of their latest catalog, not terribly
> expensive
> > either. I would think, thinking as a C.E.T., that a few tens of
> microhenries
> > of choke isolation on each output lead would allow any number of them to
> be
> > paralleled for enough power to build your vfd regardless. 10 of them
> for a
> > 400 watt vfd would probably still be cheaper than a commercially built
> vfd of
> > that same power level.
>
> The switching waveform would have to be synchronized for this to
> work, I would think. Otherwise, the inductors would need to be
> much larger, or the amps would be fighting each other.
>
>
> Jon
>
>
>
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