RE: audio modulated SSTC

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: humanb-at-chaoticuniverse-dot-com 

Can someone show me with a schematic how one would
modulate the rails? A simple diagram would help me
immensely.

Thanks,

David Trimmell

On Thu, 05 Feb 2004 08:17:33 -0700, "Tesla list" wrote:

 >
 > Original poster: "Mccauley, Daniel H"
 > <daniel.h.mccauley-at-lmco-dot-com>
 >
 >
 > If you try to do that, you are going to be running the
 > IGBT linearly.
 > You will be dissipating mucho amounts of heat there.
 > You might be better using something along the lines
for
 > Class-D
 > operation.  You would better off feeding the audio
into
 > a comparator and
 > pulse-width  modulating it and then feeding it into
 > your switch on the
 > power rail.  However, its not without problems and
 > complexities.
 >
 > Dan
 >
 >
 > Okay the bug has bitten me! (again) and I think I will
 > build an audio
 > modulated SSTC this weekend.  One question.  If I made
 > a self resonant
 > design, then I put an IGBT in series with power to the
 > bridge, and fed
 > audio to the IGBTs gate, woudl that work?
 >
 > Regards - Jim Mitchell