I did the circuit in LTSPICE, but here's the schematic of my circuit, which the professor said looks good:
http://l.bitcasa.com/X-bpPMWt
But here is the error dialog that pops up whenever I try to run the simulation:
Circuit: * C:\Users\user\Documents\waterlevelcontrollercircuit.asc
Error...
Where are the relays in LTSPICE? Here's what I currently have with building the circuit schematic:
http://l.bitcasa.com/s7LnX-v3 May you please help me?
I am working with a spice model for NE555, but it looks like this:
http://en.wikipedia.org/wiki/File:555_Pinout.svg
Instead of this:
http://www.circuitstoday.com/wp-content/uploads/2011/04/water-level-controller-circuit.pngI can't find a NE555 spice model timer with that specific arrangement...
The simulation software only had an IC 555 timer that had 7 outputs, and they weren't even numbered, whereas the example schematic had 8 outputs and were numbers. Can you recommend me a circuit simulation software that can do just that? Why 7 and not 8? Why the strange th, tr, ctl, labels? Why...
Homework Statement
The assignment for me is to simulate a circuit. I've already selected a project and I have already gathered parts thanks to my parents, but I need help on simulating the circuit. My first attempt did not go so well. The final steps of the project is to build the project on...
http://l.bitcasa.com/h1JexqbW
Refreshed the page, solved the equation with different variables using the same methods above, including Vth - Rth*Id - Vz, and it still did not work and it gave me a wrong answer. It's practically mocking me. Something is wrong with the computer system this...
http://l.bitcasa.com/7wz_SYeM I've tried solving for it again, but to no avail. Must be something wrong with the computer system as I may have been on the problem for too long.
Homework Statement
http://l.bitcasa.com/-QwLBhUK
Here is the problem statement
Homework Equations
Vth = V1*R2/(R1+R2)
Rth = R1*R2/(R1+R2)
Vth - Rth*Id - Vz = 0
The Attempt at a Solution
http://l.bitcasa.com/4ycq3BMN
Here is my attempt at a solution.
I am having...