Re: Intermittent Problem with Circuit Design. Asking for Assistance.

On Thu, 12 Jan 2006 16:01:13 -0500, Keith Williams <krw@xxxxxxxxxx>
wrote:

>In article <1137099455.803013.264940@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>,
>emrikol@xxxxxxxxx says...
>> Yes, that is right.
>
>Didn't you want the opposite? Your circuit is non-inverting.
>Jim's is inverting (and simpler; no zener needed).
>
>> Good lord, I think I've confused myself.
>
>It happens. ;-)

You need either a zener or another resistor, to keep from breaking
down the base in reverse bias.

...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 |

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