Re: Help needed with basic transistor assumptions

On Feb 13, 11:41 am, misterroy <rgdavid...@xxxxxxxxx> wrote:
Hi, I'm a high school teacher and I've been working on a transistor
revision *** for my students. I'd appreciate any comments on the
*** I have made. Its at:

http://docs.google.com/View?docID=dg57p3md_27hjs34bgc&revision=_latest

 Bear in mind we're working at a basic level, only using the
transistors as switches.

thanks

Looks pretty good. One comment on the MOSFET operation is the current
into the gate is not exactly zero and may be quite high depending on
the frequency of operation. There is a capacitance from gate to source
that needs to be charged (or discharged) every time the mosfet is
switched on or off. The more frequently you do this will increase the
average current required.

-Bill

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