The below Table shows the specification required for a gate drive circuit and the driven MOSFETs in ...

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The below Table shows the specification required for a gate drive circuit and the driven MOSFETs in a buck converter. Answer the following Questions ???,??????????????????????????? MOSFET ??????? ? ???????? DC input voltage DC output voltage DC output current Switching frequency Gate resistor Gate driving voltage Drain-to-source voltage Drain current On-state resistance Forward transfer conductance Threshold voltage E Vout Lout R? E Vds Is Ran US Vih Cias Input capacitance Cos Output capacitance Reverse transfer capacitance Cras 100 V 50 V 10 A 20 kHz 10 ? +10 V 250 V 30 A 100 m 20 S 5 V 10,000 pF 1000 pF 100 pF 1. Find the rise time Tr and the fall time Tf. ???? Tr ????? Tf ????? 2. Find the di/dt across the MOSFET in turn-on and turn-off transitions. MOSFET ???????????????? di/dt ????? 3. It is requested to reduce the dv/dt to a half in a turn-on transition without any change in the turn-off transition. Answer the possible ways. ???????????????, ???????dv/dt ?2?????? ???????? ??