I have been attempting to simulate a 48v -220v dc boost converter. I have adjusted the duty cycle and components accordingly(calculations and simulation attached). The output obtained is 88v instead of 220v from a duty ratio of 80%. Kindly assist. I need to use this a the first stage of a UPS project.

 

I have been attempting to simulate a 48v -220v dc boost converter. I have adjusted the duty cycle and components accordingly(calculations and simulation attached). The output obtained is 88v instead of 220v from a duty ratio of 80%. Kindly assist. I need to use this a the first stage of a UPS project.

I made a simulation in LTspice XVII and your circuit worked ok. Output voltage was about 183 V. Simulation is attached.

View attachment 48to220Vboost.asc