PWM Strategies for Full-Bridge Inverter (PDF)
A PDF that compares three PWM strategies for the full-bridge inverter — bipolar, unipolar standard, and unipolar fast-slow.
PWM Simulink Models — Half-Bridge, Unipolar, Bipolar
Three PWM variants as Simulink models, on one page — half-bridge, unipolar full-bridge, and bipolar full-bridge.
A video walkthrough is available on YouTube.
What is in this model
- Half-bridge PWM: a single switch pair with one triangular carrier. Output swings between plus and minus half the DC-link voltage.
- Unipolar full-bridge PWM: each leg modulated independently. Output has three levels.
- Bipolar full-bridge PWM: the two legs switch complementarily. Output has two levels.
- Shared parameters: compare all three at the same modulation index and switching frequency.
- Scopes: gate signals, modulator, output voltage, and the FFT of the output voltage.
- MATLAB file with the parameters
Inside the model
Specs
| Format | 3× .slx |
|---|---|
| File size | ~540 KB total |
| Dependencies | Simscape Electrical |
Get the Simulink model
I'll send you the simulation model within 5 days.