Hi all,
I would like to use the sweep option of TINA-TI Spice for sweeping voltage, current, frequency, resistance, capacitance, inductance etc. I would like use it for the lab where you need to provide the plots for V_CE vs I_C for several values of V_BE. However, all I can find is the the sweep option from DC analysis. Also, I cannot set the increment for the sweep.
Hope you guys can help me. If you need additional information, please let me know.
Kind Regards,
Mehmet
HI Mehmet,
It looks like you want to run a nested or parametric DC sweep like the ones done on transistors to obtain the Ic vs Vce while holding Vbe as a parameter. This can be definitely achieved in TINA but I understand that the initial setup might be a tad daunting. Ok so lets start by running a basic DC sweep. Consider the schematic shown below
1. We would like to sweep Vce and measure the collector current with amp meter AM1. Go to the Analysis tab and select DC transfer curve as shown below
2. The following message box should show up. I have called my dc voltage source VCC so that is the one I want to select
3. Once you press Ok the simulation will run and you should be able to get a single Ic vs Vce curve. Ok you have made it so far... so how do we run the same DC simulation over and over while changing Vbe?
Now go to the analysis tab once more but this time select the "Select Control Object" menu option see below
4. Your mouse pointer should change to a resistor looking icon. Go ahead and select battery V1 and the following message box should show up
5. Press ok and you should see the following set up message box
6. As you can see I have selected a start value of 1.5V, an end value of 4.5V and 3 cases so if my math doesn't betray me it should run the following cases [1.5, 3, 4.5]. Once that is set up you can go to the analysis tab once more but this time select Mode... from the menu. A message box displaying the current analysis mode should show up and it should have "Parameter stepping" selected as the simulation mode. See below.
7. At this point the parametric sweep is set up and ready to go. Now if you go back to steps 1 and 2 and run a DC sweep you should be able to see Ic vs Vce vs Vbe. I have attached the schematic I used in my example to simplify setup. Feel free to give it a look and should you have any more questions please feel free to re-post.
Hope this helps,
Marcos
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