Question

A step-down chopper has input voltage .1 V and output voltage .01 V. Calculate the value of the duty cycle.

(a) 0.1

(b) 0.2

(c) 0.3

(d) 0.5

The question was asked in an interview.

I want to ask this question from Solid-State Switching Circuits in section Introduction to Solid-State Switching Circuits of Electric Drives

Answer 1

Right option is (a) 0.1

The best explanation: The output voltage of the step-down chopper is Vo = Vin×(D). The value of the duty cycle is less than one which makes the Vo < Vin. The step-down chopper is used to step down the voltage. The value of the duty cycle is .01÷.1=.1.