Small-Signal Transfer Function Test

The Transfer Function simulation calculates the small signal transfer function by linearizing the circuit around the operating point. It generates the output impedance and gain seen across a the circuit from an input source to an output port. All you need to do is specify the output port and the input source.

tf_circuit.gif (3731 bytes)

For the tutorial one circuit, shown above, the transfer function is requested with the voltmeter as the output port (or nodes 2 to ground), and the voltage source (VC0) as the input port. Using Show Node numbers, you can see that the node numbers across the voltmeter are 2 and 0, as shown in the figure above.

Here are the results for the example.