Re: drsstc

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

Original poster: "robert heidlebaugh" <rheidlebaugh-at-desertgate-dot-com> 

Jan: first let us define terms : disipation of a capacitor is losses within
a capacitor. The disipation of a curcuit is outside the capacitor. If I
charge a capacitor to 20 Kv and discharge it into my lazer tube at 400 Amps
I have delivered  8 meg watts of peak power to my circuit from my
capacitors. My capacitors do not heat because they have disipated no power.
The gas within my lases requires expansion chambers to avoid an explosion
because of all the power being disipated in the laser tube. This power is
not disipated by the capacitors. I hope this explains the differance of
terms.
      Robert   H
-- 


 > From: "Tesla list" <tesla-at-pupman-dot-com>
 > Date: Tue, 26 Oct 2004 13:01:22 -0600
 > To: tesla-at-pupman-dot-com
 > Subject: Re: drsstc
 > Resent-From: tesla-at-pupman-dot-com
 > Resent-Date: Tue, 26 Oct 2004 13:04:27 -0600
 >
 > Original poster: "Jan Wagner" <jwagner-at-cc.hut.fi>
 >
 >
 > On Thu, 21 Oct 2004, Tesla list wrote:
 >> Original poster: "Bob (R.A.) Jones" <a1accounting-at-bellsouth-dot-net>
 >>> Original poster: "Jan Wagner" <jwagner-at-cc.hut.fi>
 >>>
 >>> Here's a paper from IEEE that has some calculations on power and current,
 >>> that you could also use as a starting point:
 >>>
 >>> http://www.hut.fi/~jwagner/electr/tmp/01296120.pdf
 >>
 >>
 >> I don't understand this paper.
 >>
 >> A 1.5kV about 100uF cap that dissipates almost most 0.5MW at 5kHz at
 >> 1.5kVpk that's 6,000A
 >>
 >> What are they using, salt water bottle caps with the sea water pumped thru
 >> to cool them!! LOL
 >
 > Well the capacitor doesn't appear to have low ESR exactly ;)
 > They used Z_esr as Z_esr = R_esr = k/C = 1.35E-4 ohm/F / 126E-6F ~= 1.1 ohm
 > so that'd explain why they end up with calculated 68% efficiency only,
 > instead of in the 90% range. Granted, there are capacitors with water
 > cooling and all that, but 1/2 megawatt dissipation, umm yeah... The rest of
 > the paper seems quite ok, though.
 >
 >> Just to stay on topic it would make a large SSTC  with 1MW cont. output.
 >> A curious configuration too parallel tuned circuit with an inductor in the
 >> DC power line.
 >
 > Looks nearly like a parallel-resonant OLTC ;)
 >
 > cheers,
 > - Jan
 >
 > --
 > ****************************************************
 > Helsinki University of Technology
 > Dept. of Electrical and Communications Engineering
 > http://www.hut.fi/~jwagner/ - jwagner-at-cc.hut.fi
 >
 >
 >