SPICE-Simulation using LTspice IV

3.6. Changing Current or Voltage Ranges
Very often you want to examine little details of a curve. So you have 2 possibilities:
a) Use the discussed zoom function from chapter 3.4.
b) Switch from “Autorange“ to „Manual Limits“.
Example for solution a):
Task:
Show only the short negative „peak“ of the collector voltage by zooming:
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Example for Solution b):
Task:
Set the values fort he vertical axis to the range 0…..+1.5V.
Step 1:
RIGHT click on the calibration of the vertical axis in the diagram
and you get this menu for Manual Setting on BOTH AXIES.
(Attention:
If you left click on the axis scaling, you’ll only see the
„quick solution menu”. Please test this, but we want to
have a look on the „big solution” and continue with the
case of the right mouseclick).
Now switch off “Autoranging” and activate „Manual Limits“ .
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