How do I rename a component in LTspice?
LTSpice labels components as R1, R2, R3, C1, C2, C3 and so on. You can change them for ease of recognition to things like Rc, Rb1, Rb2, Load and so on. Right click the label and type in your new name. Press F4 or the “label net” button (a box with an ‘A’ in it).
How do I use spice directive in LTspice?
In LTspice a SPICE Directive is text placed onto the schematic that passes directly into the netlist. It may be entered either as a single line or as a block of several lines of text. Since ENTER closes the text edit box, a new line must be started by typing either ctrl-ENTER or ctrl-M.
When to use Param directive In LTspice?
The param directive is used here in the .step command to allow for the creation of this user-defined variable. Please see the help file ( F1) for more details on .step command and param directive. It is important to calculate efficiency when the circuit is operating in a steady state.
How to step component and model parameters In LTspice?
Select value of any component that you plan to step and put it’s name in curly braces {}. You are not limited to component values for simple components. You can also step parameters of other parts like sources and etc. In example file I’m stepping AC amplitude of voltage source V1, used for frequency sweep in AC analysis.
How to define a variable In LTspice IV?
Define the component parameter with a variable by editing the component attribute (Ctrl–right-click on the component) and entering “ {X}” for the Value, where “X” is a user defined variable name. The addition of the curly braces around the variable is important as it tells LTspice IV that “X” is a parameter.
What does LTspice do with a subckt name?
Nothing else. LTspice will grab that value and search the .LIB file for the SUBCKT name and, if present, will find and use it. You can do like this: .step param modelselector list 11 12 13 14 .model 11 ako:1N4148 .model 12 ako:1N5819 .model 13 ako:BAT54 .model 14 ako:MBRS360