(There's a step-by-step tutorial on how to get input and output impedances here. The output impedance is about \$800 \ \Omega\$. Multisim is the preferred SPICE circuit simulator for use in EE-331.
If you run this simulation, you'll get this plot for output impedance: Getting started with National Instruments Multisim. And then we'll plot MAG(V(I1.nA)/I(I1.nA)) to see the output impedance: We'll set this current source to have 0 current at DC so that it's only being used as a small-signal current source, pushing and pulling current from the output node.
In this case, by mousing over the plot, you'll find that it's about \$2 \ \text\Omega\$ in the pass band:įor output impedance, we need to modify the circuit slightly, just by adding a test current source connected to the output.
Of course, the first step to using your software is to install it. Because of its ease-of-use and prevalence in the industry, many higher education institutions teach it to their students. Input impedance is easy: we can just take the same circuit above and instead plot the expression MAG(V(V1.nA)/I(V1.nA)), which looks at the small-signal current relative to the small-signal voltage on source V1 and plots their ratio, an impedance. National Instruments Multisim is an industry standard circuit design and analysis program. Thread starter gupta1508 Start date Status Not open for further replies. (If you need to recreate this on your own, there's a step-by-step tutorial on how to draw a circuit and get the voltage gain Bode Plot here.) Input Impedance alternate ic for LM565 to use in multisim. To see different point values or the use of Cursors in the Grapher View window. If you open the circuit above and run the simulation, you'll get the following Bode Plot showing approximately +30 dB of gain in the pass band: As shown above, we can see the graph of Power vs. Simulate this circuit – Schematic created using CircuitLab I've quickly drawn your circuit and set it up to get the Bode plot of voltage gain, setting up a frequency domain simulation with V1 as the source and DB(MAG(V(out))) and PHDEG(V(out)) as the plot outputs: I don't use Multisim, but it's easy to find an amplifier's voltage gain and input and output impedances with the CircuitLab circuit simulator.