What are the input/output voltages of a...

Question 1 of 270709wB0ndsrJfzygTEP6tgl

What are the input/output voltages of a "BUCK" switching power supply with a 50% duty cycle?

Back

Question 1 of 27070

Q

What are the input/output voltages of a "BUCK" switching power supply with a 50% duty cycle?

🔍 Key Concepts

• Buck (step-down) converter basic function • Relationship between duty cycle and output voltage in an ideal buck converter • What a 50% duty cycle physically means in terms of time on vs. time off

💭 Think About

• In a buck converter, does the output voltage become higher or lower than the input voltage? • If the switch is ON for 50% of the time and OFF for 50% of the time, how does that affect the average voltage seen at the output? • Which answer choice matches a "step-down" (buck) situation consistent with a 50% duty cycle?

✅ Before You Answer

• Be sure you know that a buck converter is a step-___ device (up or down?). • For an ideal buck converter, verify the approximate relationship: Vout ≈ Duty Cycle × Vin. • Eliminate any option where Vout is greater than Vin, since that would be a different type of converter.