Re: A prospective MOSFET driver

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

Original poster: "Malcolm Watts by way of Terry Fritz <twftesla-at-qwest-dot-net>" <m.j.watts-at-massey.ac.nz>

Hi Ken,
        I can't see any reason why Q2 shouldn't switch on rapidly.
The active gate pulldown circuit appears to be a MOSFET variation on 
a bipolar scheme that is often used with common SMPS control ICs. You 
may need a small series gate resistor for each MOSFET to keep the 
circuit stable.

Regqards,
malcolm

On 6 Aug 2002, at 18:49, Tesla list wrote:

> Original poster: "K. C. Herrick by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <kchdlh-at-juno-dot-com>
> 
> Would MOSFET-literate coilers care to comment on a prospective driver
> circuit?  See TCH-DRVR.gif at http://hot-streamer-dot-com/temp  I've not
> tried it but it seems reasonable.  The main purpose is to turn the power
> MOSFET (Q2) on slowly ond off fast--for the case of a "totem pole" or
> similar circuit.
> 
> http://hot-streamer-dot-com/temp/TCH-DRVR.gif
> 
> Ken Herrick
> 
> 
> 
>