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The duty cycle of a step-down chopper is 55% and the value of the source voltage is 100 V. Find its output voltage.
  • a)
    45 V
  • b)
    65 V
  • c)
    50 V
  • d)
    55 V
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
The duty cycle of a step-down chopper is 55% and the value of the sour...
Step-down chopper:
It is also called a Buck converter.
The output voltage steps down compared to the input voltage.
The circuit is shown below.
Formula:
The output voltage can be calculated as
Vo = D. Vs
D = Duty cycle
Vs = Source voltage
Calculation:
Given
D = 55% = 0.55
Vs = 100 V
Vo = 0.55 × 100 = 55 V
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Most Upvoted Answer
The duty cycle of a step-down chopper is 55% and the value of the sour...
Understanding Duty Cycle in Step-Down Chopper
In a step-down chopper, the duty cycle (D) is a crucial parameter that determines the output voltage (Vout) in relation to the input voltage (Vin). The formula to calculate the output voltage in a step-down chopper is:
Vout = D * Vin
Where:
- D is the duty cycle (expressed as a decimal)
- Vin is the source voltage
Given Values
- Source Voltage (Vin): 100 V
- Duty Cycle (D): 55% or 0.55 (as a decimal)
Calculation of Output Voltage
To find the output voltage (Vout), you can substitute the values into the formula:
Vout = 0.55 * 100 V
Performing the Calculation
- Vout = 55 V
Thus, the output voltage for the given duty cycle and input voltage is 55 V.
Conclusion
The correct answer to the question is option 'D', which is 55 V. This demonstrates that a duty cycle of 55% effectively reduces the input voltage of 100 V down to an output voltage of 55 V in a step-down chopper configuration.
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