jeroen,<br>This is the Hardway<br>seems like you overherd of Open Collector, outputs<br>1. put 5vdc on the collector through a small resistor like 330ohms,<br>put your lamp/what ever between the resistor and the open collector now you can pull this down with a gate if you want to, tada<br>
Cris Harrison<br><br><br><br><div class="gmail_quote">On Thu, Mar 12, 2009 at 10:12 AM, Jeroen Huijben <span dir="ltr"><<a href="mailto:jeroen_huijben@hotmail.com">jeroen_huijben@hotmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div>
I am wondering if this will work.<br>
<br>
I have a voltage divider of two resistors, set to put 2.5V at the output X when 5V is set over it.<br>
I want to use a logic chip (74HC74 dual Dtype flipflop) to pull the output to 0V or 5V, depending on how a rotary encoder turns.<br>
I have found how to turn the signal of the rotry into a high on either of two outputs of the flipflop.<br>
Now I want to use two transistors to short out either of the resistors so that the output X is connected to either side of the divider.<br>
<br>
<a href="http://i40.tinypic.com/jajuag.gif" target="_blank">http://i40.tinypic.com/jajuag.gif</a><br>
A and B will go straight to the chip with only a diode in between.<br>
<br>
Will this work?<br>
Can I use any regular transistor?<br>
<br>Regards,<br><font color="#888888">
Jeroen.<br></font><div class="hm"><br><hr>Express yourself instantly with MSN Messenger! <a href="http://clk.atdmt.com/AVE/go/onm00200471ave/direct/01/" target="_blank">MSN Messenger</a></div></div>
<br>_______________________________________________<br>
Simpits-tech mailing list<br>
<a href="mailto:Simpits-tech@simpits.org">Simpits-tech@simpits.org</a><br>
<a href="http://www.simpits.org/mailman/listinfo/simpits-tech" target="_blank">http://www.simpits.org/mailman/listinfo/simpits-tech</a><br>
To unsubscribe, please see the instructions at the bottom of the above page. Thanks!<br></blockquote></div><br>