LTspice: Circuit Simulation from Zero
Learn to design, simulate and analyse electronic circuits with the free industry-standard simulator, one practical lesson at a time.
Getting started
- Meet LTspice Know what a circuit simulator does, get LTspice installed, and find your way around the workspace.
- Your first circuit: an RC low-pass filter Draw a complete circuit, set component values and run your first simulation.
Analyses
- Operating point and DC sweep Find steady-state voltages with .op and sweep a source with .dc.
- Transient analysis and the waveform viewer Understand time constants and use cursors and expressions to analyse waveforms.
- AC analysis and Bode plots Plot frequency response and find the cutoff frequency of a filter.
Components
- Sources, diodes and a rectifier Use sine and pulse sources and simulate a half-wave rectifier with a smoothing capacitor.
- Op-amps: the inverting amplifier Simulate an op-amp amplifier with power supplies and verify the gain.
Power tools
- Parameters, steps and measurements Automate design exploration with .param, .step and .meas.
Capstone
- Capstone: design a filter to a spec Apply everything: design, simulate and verify a filter that meets a specification.
What you will learn
- Build and run schematics in LTspice with confidence
- Choose the right analysis: .op, .dc, .tran or .ac
- Read waveforms, use cursors and plot your own expressions
- Simulate filters, rectifiers and op-amp circuits
- Sweep parameters and measure results automatically