RE: PLL-controlled SSTC?

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

Original poster: "Mccauley, Daniel H by way of Terry Fritz <twftesla-at-qwest-dot-net>" <daniel.h.mccauley-at-lmco-dot-com>


Actually, that doesn't sound like PLL.  Thats more of a current feedback
circuit.

Dan



> Search the archive for Ken Herrick's SSTC. I believe his coil does work
> in a PLL fashion. It has a CW mode where the frequency is controlled by
> the current at the base of the secondary which makes it self tuning.
> When you draw an arc you can hear the frequency change as you change the
> length of the arc.
> 
> Ray Haynes
> Antelope, CA
> 
> > -----Original Message-----
> > From: Tesla list [mailto:tesla-at-pupman-dot-com]
> > Sent: Friday, July 05, 2002 11:48 AM
> > To: tesla-at-pupman-dot-com
> > Subject: PLL-controlled SSTC?
> > 
> > Original poster: "Jolyon Vater Cox by way of Terry Fritz
> > <twftesla-at-qwest-dot-net>" <jolyon-at-vatercox.freeserve.co.uk>
> > 
> > 
> > Has anyone experience of the use of Phase-Locked-Loops to keep a Tesla
> > coil in
> > tune? This approach would appear to have advantanges in combining the
> > efficiency of Class D switching with the frequency-tracking capability
> of
> > a
> > self-resonant inverter -are there any serious problems with this
> approach?
> > Also, is dead-time control actually essential for switching
> > transistors/MOSFETs
> > in Tesla coil service?
> > 
> > 
> 
> 
> 
>