Hi, this is my first post so please forgive any misguided statements or questions. Thanks.
Model rail as the real thing works on the track being split into sections always referred to as blocks. For many reasons it is handy to know electronically when stock is detected within a block. The most ideal to me seems to be in the use of an optocoupler, I am using 4N35's.
I have built a circuit which I believe should work however the "opto" will only work when subjected to an unresisted Vcc 0f +13.84v DC.
I sincerely hope that this circuit image shows; else: I'll add another listing all values. Or here is the Circuit link:
http://s1108.beta.photobucket.com/u...g.html?&_suid=1348141711830048175529124140503
I need it to work when the circuit is carrying virtually 0v through to it's 15v controlled maximum.
Can any body offer advice to someone chewing their finger nails please?
Thanks for reading me,
Cheers,
Chris
Model rail as the real thing works on the track being split into sections always referred to as blocks. For many reasons it is handy to know electronically when stock is detected within a block. The most ideal to me seems to be in the use of an optocoupler, I am using 4N35's.
I have built a circuit which I believe should work however the "opto" will only work when subjected to an unresisted Vcc 0f +13.84v DC.
http://s1108.beta.photobucket.com/u...g.html?&_suid=1348141711830048175529124140503
I need it to work when the circuit is carrying virtually 0v through to it's 15v controlled maximum.
Can any body offer advice to someone chewing their finger nails please?
Thanks for reading me,
Cheers,
Chris