Re: An extremely good MOSFET driver

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

Original poster: "K. C. Herrick by way of Terry Fritz <twftesla-at-qwest-dot-net>" <kchdlh-at-juno-dot-com>


On Tue, 06 Aug 2002 22:03:43 -0600 "Tesla list" <tesla-at-pupman-dot-com>
writes:
> Original poster: "Daniel McCauley by way of Terry Fritz 
> <twftesla-at-qwest-dot-net>" <dhmccauley-at-spacecatlighting-dot-com>
> 
> 
> This circuit shown below:
> 
> http://www.spacecatlighting-dot-com/datasheets/mosfetdriver.pdf
> 
> is an extremely fast mosfet driver circuit...

[snipped]

Whoa!...I took a closer look:  Dan, am I missing something or do I see a
problem with Q6?  Each time the transformer-secondary voltage becomes -
on top & + on the bottom, does not Q6's base:collector junction become
forward biased?  That's going to ruin the other secondary's output, when
it's (presumably) trying to turn on its MOSFET.

Hmmm...

Ken Herrick