Re: Turning on a MOSFET from 0-5V

On 19 Sep 2006 16:43:10 -0700, "Didi" <dp@xxxxxxxxxxx> wrote:

Are you sure it takes 2 resistors and an NPN? In my world
it takes 3 resistors :-). (two at the base - you want it between
0 and 5V while off, and one to pull the collector up to 12V).
Nothing wrong helping a guy with his homework if one feels like it,
btw - we all learn from what others have done before, a few of us
sometimes do something worth being learned by those to come.

Dimiter

[snip]

NPN, gold-doped preferred, such as 2N2369

From collector, pull-up resistor to +12V (junction of collector and
pull-up resistor is OUTPUT)

From base, pull-up resistor to +5V

Emitter, driven from output of CMOS logic device

Q.E.D ;-)

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice:(480)460-2350 | |
| E-mail Address at Website Fax:(480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.
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