Project 1

ans-

       Three converters i.e., Buck converter, Boost converter and SEPIC converter are chosen for this project and the details of each converter along with its simulation results are discussed below.

1)Buck converter-

given data, Vin = 40 - 50 v

       Vout = 30 v,

        power = 500 w

Buck conveter model -

        As buck conveter works as steped down the voltage ,so with help of calculated part we create a model .

waveforms- 

   As shown in above  plot , we see that mosfet current, voltage,diode current , voltage, inpit voltage, output voltage, output  current.

as from graph we got,

  Vin = 40 v

 Vout = 29.5 v

 Iout = 17.5 A

 Buck converter is designed as per given data and result obtained through simulation proves theoretical result.so we got stepped down the voltage .

2)Boost converter -

             To step up the voltage we use boost conveter.

From given data , we calculated value of inductor,capacitor, current.

Vin = 20-30 v , Vout = 40 v , p= 600 W

Boost conveter model -

waveforms-

 As shown in above  plot , we see that mosfet current, voltage,diode current , voltage,PWM,  inpit voltage, output voltage, output  current.

from graph we got,

Vin = 20 v

Vout= 38 v

Iout = 13.5

Boost converter is designed as per given data and result obtained through simulation proves theoretical result.

3)Buck-Boost converter -

Given data - 

Vin = 30-60 v

P= 300 w , Vout = -45 v

calculations -

model -

waveforms -

Vin = 30 v

Iout = - 6.6 A

Vout = - 40 v

Buck-boost converter is designed as per given data and result obtained through simulation proves theoretical result.