Consider the circuit below for the analysis of the power losses across a force-commutated switch in a DC-DC stepdown converter supplying a highly inductive load. The diode is to be considered ideal. The DC bus voltage (Vd) is 60 V and the load current (Io) is 15 A. The switching frequency is 100 kHz and the duty cycle is 0.75. The switch (MOSFET) parameters are: RDS(on) = 0.077 , turn-on time = 55 ns and turn-off time = 90 ns. Compute: a) The average switching losses (in W); b) The average power supplied to the load (in W); In this case, the voltage drop across the switch and the transition times, from on to off and from off to on, can be neglected. c) The average conduction losses (in W); In this case, the waveform of the switch current can be considered as a "square pulse," instead of "slightly trapezoidal