Signal processing

We can use TINA to post-process the results of an analysis of a circuit. After a DC, AC or transient analysis has been performed on a schematic, the analysis results are placed in the symbol table of the Interpreter so you that can refer to them as you write expressions in the Interpreter.

In this example, we will plot the instantaneous power in the resistor using the previous TINA transient analysis result.

The instantaneous power in the resistor is:

Iprbook00000005.gif

Before plotting this signal, we have to set the ending interval time value (right limit parameter) in the Drawing Preferences dialog. Set this parameter to the value of the transient analysis end time, 2.0m.

e2_1.gif

Type in the Interpreter:

Draw( Sqr(TR_result1(t))/R, MyResult )

The result appears after a moment in the Diagram Window.

e2_2.gif