RE: [TCML] DRSSTC weird waveform behavior

[Justin B <boshjack@xxxxxxxxxxx>]

What range resistor should I be looking for..? Are we talking a range of 1-100, or 1,1000? Seems like it would be easier because variable inductors are really old tech and they are really low range..

> Date: Fri, 1 Jul 2011 21:31:54 -0400
> Subject: Re: [TCML] DRSSTC weird waveform behavior
> From: mdt24@xxxxxxxx
> To: tesla@xxxxxxxxxx
> 
> You don't really need an adjustable inductor to do the whole phase lead
> thing.  A fixed inductor with a variable resistor in parallel will give the
> same effect.  After all, you just want the impedance of the CT burden to be
> slightly inductive.
> 
> -Mike
> 
> On Fri, Jul 1, 2011 at 6:43 PM, Justin B <boshjack@xxxxxxxxxxx> wrote:
> 
> >
> > I just wasn't sure, But I plan to try some adjustable inductors with
> > resistor in parallel with my feedback CT, and try to adjust the phase lead,
> > similar to how Finn did his.  I plan to put the resistor back to 5 ohms and
> > adjust the phase.  But yeah, those squiggles lost most people I sent it to.
> >  Will be fun finding a method to fix that one!
> >
> > > Date: Fri, 1 Jul 2011 18:26:20 -0400
> > > Subject: Re: [TCML] DRSSTC weird waveform behavior
> > > From: mdt24@xxxxxxxx
> > > To: tesla@xxxxxxxxxx
> > >
> > > The "squiggles" on your output voltage are probably caused by a resonance
> > > formed by your DC bus capacitors and their parasitic inductance, and the
> > > parasitic inductance of the bus bars.  It can be pretty nasty, especially
> > if
> > > that resonant frequency is anywhere close to your drive frequency.
> > >
> > > Also why do you think increasing the gate resistors will help with zero
> > > crossing?  That will just slow the switching down, not speed it up.
> > >
> > > -Mike
> > >
> > > On Fri, Jul 1, 2011 at 6:01 PM, Justin B <boshjack@xxxxxxxxxxx> wrote:
> > >
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