On Wed, Aug 15, 2012 at 3:33 AM, IVP <joecolquitt@clear.net.nz> wrote:
> Here's a driver circuit I've been working on
>
> http://home.clear.net.nz/pages/joecolquitt/burner_schematic.gif
>

The BC557 will always be on.  Its base is at 11.3V and the voltage
across R1 will be 6V.  The 18F1320 probably doesn't use 6mA at 4MHz,
so the supply voltage will be pulled up until something starts
conducting.  This might be bad.

Regards,
Mark
markrages@gmail
--=20
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.