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Calculate the output power of the Buck converter if the supply voltage is 4 V and duty cycle value is .1 for 4 Ω load.(a) 40 mW(b) 20 mW(c) 50 mW(d) 60 mWThis question was posed to me by my school principal while I was bunking the class.This key question is from Solid State Controlled Drives in portion Introduction to Solid State Controlled Drives of Electric Drives

Answer»

The correct CHOICE is (a) 40 mW

The EXPLANATION is: The output voltage of the buck converter is VO = Vin×(D)=.4. The value of the duty cycle is less than one which MAKES the Vo < Vin. The buck converter is used to step down the voltage. The output power is Vo^2÷R=40 mW.



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