(18 marks) Question Give a definition and explain the topology and operation of the BUCK converters. (4 marks) a) ic i. b) Find a relationship between Vo and Vs, (including the inductance L, the...

(18 marks) Question Give a definition and explain the topology and operation of the BUCK converters. (4 marks) a) ic i. b) Find a relationship between Vo and Vs, (including the inductance L, the period T, and the duty cycle D), by finding: Al when the switch is closed and when the switch is open. Assuming that the rate of change of current is a constant.(For steady-state operation, the net change in inductor current must be zero) (14 marks)