Re: A prospective MOSFET driver

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

Original poster: "David Sharpe by way of Terry Fritz <twftesla-at-qwest-dot-net>" <sccr4us-at-erols-dot-com>

Ken

You're right on that one.  I use a bidirectional
clamp at +/-12V or +/-15V if a clamp is
necessary, one part versus two.

Regards
Dave Sharpe, TCBOR
Chesterfield, VA. USA

Tesla list wrote:

> Original poster: "K. C. Herrick by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <kchdlh-at-juno-dot-com>
>
> On Thu, 08 Aug 2002 20:12:40 -0600 "Tesla list" <tesla-at-pupman-dot-com>
> writes:
> > Original poster: "David Sharpe by way of Terry Fritz
> > <twftesla-at-qwest-dot-net>" <sccr4us-at-erols-dot-com>
> >
> > Hi Malcolm, Ken, Ed et al
>
> [snipped]
>
> Generally with my designs, I don't use a zener in the gate
> > drive circuits at all, except as a bi-directional clamp to protect
> > GS from exceeding +/- Vgs ratings.  Designers / Engineers
> > preference.
> >
> > Regards
> > Dave Sharpe, TCBOR
> > Chesterfield, VA. USA
>
> OK...but if you use 2 zeners in series for this purpose, anode-to-anode
> or etc., then each time one of them "zeners" the other one will conduct
> forward.
>
> Not that I want the last word or anything...
>
> KCH