Compare Current Source Inverter ( CSI ) and Voltage Source Inverter ( VSI )

Voltage Source Inverter ( VSI ) – Current Source Inverter ( CSI )

• The output voltage remains constant for a given type of load in the VSI whereas the input current remains constant in the CSI. 
• A large capacitor is connected at the input side of the VSI whereas a large inductor is connected at the input side of the CSI.