GATE EE 2017 Set 1 — Question 24
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Power Electronics → Inverters → Square Wave Operation
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Question
In the converter circuit shown below, the switches are controlled such that the load voltage is a square wave.
The RMS value of the fundamental component of in volts is ______.
Correct answer
196 to 200
Solution
The circuit is a single-phase full-bridge inverter. For a square wave output with DC input voltage , the output voltage can be expressed by its Fourier series:The fundamental component () is:The peak value of the fundamental component is .
The RMS value of the fundamental component is:Given :Rounding to the nearest integer, the value is approximately .
The RMS value of the fundamental component is:Given :Rounding to the nearest integer, the value is approximately .
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