IntermediateMATLAB R2026a

Cascaded H-bridge multilevel inverter (7, 13, 23 levels)

See how adding voltage levels makes an inverter's output closer to a sine wave.

Aim

Build 7-, 13- and 23-level cascaded H-bridge inverters with level-shifted (PD) PWM and compare their output voltage and harmonic distortion (THD).

An interactive illustration of the idea behind this experiment.

Switching and PWM

Duty cycle D25 %

Average output Vout ≈ D × 48 V

12.0 V

Simplified illustration for learning. Run the MATLAB model for exact, physics-based results.

Unzip the package we send you.
Go to matlab.mathworks.com and sign in (campus licence or MathWorks trial).
In MATLAB Drive, click Upload and choose the unzipped folder.
In MATLAB Online, open the folder and double-click the model (.slx) or run the start script named in README.
Press Run. Results appear in the scopes, dashboard or figures.

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