Difference between VSI (Voltage Source Inverter) and CSI (Current Source Inverter):
The difference between VSI (Voltage Source Inverter) and CSI (Current Source Inverter) is given in below table
| Sl no | VSI (Voltage Source Inverter) | CSI (Current Source Inverter) |
| 1 | Input voltage is maintained constant. | Input current is constant but adjustable. |
| 2 | Output voltage does not depend on the load. | Output current does not depend on the load. |
| 3 | It requires feedback diodes. | It does not require any feedback diode. |
| 4 | Commutation circuits is complex. | Commutation circuit is simple. |