MOSFET Level 3 Spice MOSFET Circuit Simulation with LabVIEW and LTspice – Part I

Common-Source Gain Stage

Newton-Raphson Root Finder – Two branches with one node. Find vgn and vo.

Iteration  Function

Reference voltage circuit. NMOS has 0.5 x standard width and uses circuit node connections.

Performs node-pair conversion according to Level 3. This version is for no body effect, with Vs =0.

Basic node-pair Level 3 NMOS simulator.

Circuit Simulation

Reference voltage vgn simulator.

Iteration function currents and f plotter.

Common-Source

Common-source f diagram. Iteration voltage, vo.

Convergence

Circuit Simulator

Includes signal-gain computer, av = 88 above.

Current and f plotter with vo sweep minus to plus power supplies.