Question: 1 0 % , target di dt is 2 0 0 A s , target dv / dt is 4 0 V n s ,

10%, target di dt is 200As, target dv/dt is 40Vns, Irrm is 3A, and operation temperature is 25 degree. a) Please derive the
inductor current ripple equation and calculate the necessary inductor value. (4 marks) b) Please estimate the diode
conduction loss and its reverse recovery loss. If there are any assumptions, please list them. (4 marks) c) Please estimate the
MOSFET conduction loss and its switching loss. If there are any assumptions, please list them. (4 marks) d) Please calculate
the number of turns for the selected inductor, where 1c=20cm,Ac=6cm2(2cm****3(cm)),r=3500, and average inductor
current is going to apply in this calculation. (4marks) e) Please estimate the inductor conduction 10s5.(4 marks) f) If the
loading power is doubled, are the selected devices still a good option? (4 marks)
Question 1) In the following a 50kHz system is given, VDN=200V,VOUT=250V,POuT=1000W, target
IL is less than 10%, target di dt is 200As, target dv/dt is 40Vns, Irrm is 3A, and operation temperature
is 25 degree.
a) Please derive the inductor current ripple equation and calculate the necessary inductor value. (4 marks)
b) Please estimate the diode conduction loss and its reverse recovery loss. If there are any assumptions,
please list them. (4 marks)
c) Please estimate the MOSFET conduction loss and its switching loss. If there are any assumptions,
please list them. (4 marks)
d) Please calculate the number of turns for the selected inductor, where 1c=20cm,Ac=6cm2(2cm**3(cm)),
r=3500, and average inductor current is going to apply in this calculation. (4marks)
e) Please estimate the inductcr couuuuvi ivos. (7 mans)
f) If the loading power is doubled, are the selected devices still a good option? (4 marks)

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