On Fri, 22 Jan 2010, damotclese wrote:
> --- In Jim Jackson <> wrote:
>> On Fri, 22 Jan 2010, carreras_marcos wrote:
>>> Good morning folks!, I need to drive two relays
>>> connected to both DIOs at my TS-7200. Due to
>>> the sink at these lines are 4mA ( 3,3V ), will
>>> need to drive them by using optocouplers.
>> Why do you need an opto coupler? A transistor
>> buffer would probably be all you need.
>
> I wondered as well why a 2N2222 could not be used instead of an opto.
> Maybe isolation is required for the application but it didn't sound like
> it.
The relay provides isolation!
> 2N2222's are inexpensive! Just pull them off of any board lying in the
> scrap pile. }:-}
Jim
------------------------------------
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/ts-7000/
<*> Your email settings:
Individual Email | Traditional
<*> To change settings online go to:
http://groups.yahoo.com/group/ts-7000/join
(Yahoo! ID required)
<*> To change settings via email:
<*> To unsubscribe from this group, send an email to:
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
|