Ok all working fine or rather will be when I use a better opamp! Using one from Noahs ark control panel and dont want to use the over priced ones I have, so I have some others coming. But the point is it does what it says on the tin!!
However......... I still cant get it to sim! I have messed with the ground that apparently spice needs and still not getting it grrr, I am playing with the sim because now I want to take things in a different direction and add in a comparator etc. If I can sort the basic sim out I hope I can design the other circuit by myself.
So where in the circuit for sim purposes would you place a ground?
Also any suggestions on opamps suitable for this kind of circuit? I seem to have mainly the ones that send AG off into a rage at the mention of the number lol.
Not done much with op amps, I did play with them for a while but not much. I am actually enjoying using them for this kind of thing instead of the normal reach for a micro that I normally do.
Its so nice to just put a meter on a line and set a voltage by the pot. The sort of things I am using this for seem real overkill to use a micro, but I have always struggled with spice and learning it! For the next stage I have no problem designing it for building, but it would help alot if I could sim it and see the behavior over temp and voltage range,
OR
Anyone got a link to a decent resource that has a video tutorial of sim ming opamp circuits with spice? Most seem too basic and dont have opamps, or are complex circuits but no real guidence on building the sim and explaining what to set up.
I tried to join the yahoo group but (3) our network provider wont let me use yahoo mail signup!! I am using mobile tethering and sometimes sites get blocked for reasons I doubt even 3 knows! I get told its a age related site and I need to contact them and get the filter lifted. Actually they want us to do that so they can monitor our tethring limit! we have eat all you want data but they changed the rules to 4 GB data if tethered.
On my phone for some reason they cant normally tell what is tethered data and what is phone data, so tempted to leave filter on
sorry ended up rambling! must be time for bed