Double edge modulation eliminates certain harmonics when the reference is a__________?
Correct answer: A. Sine wave
- A. Sine wave
- B. Square wave
- C. Triangular wave
- D. Trapezoidal wave
Explanation
With a sinusoidal reference, double-edge PWM produces symmetrical switching pulses, causing selected harmonic components to cancel. A square or triangular reference does not provide the same sinusoidal PWM harmonic cancellation pattern.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Power Electronics
253 free Power Electronics MCQs from Electrical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Electrical Engineering questions like this
Electrical Engineering is on 2 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Power Electronics questions
In a three phase voltage source inverters____________?
The square wave operation of 3 phase VSI lines contains the harmonics. The amplitudes are____________?
In a 3 phase VSI out of eight valid states, the number of valid states that produce zero ac line voltages is/are_________?
The carrier which are commonly used in constant - frequency PWM is______________?
In a 3 phase CSI, if the required line output voltages are balanced and 120 degree out of phase, then the chopping angles are used to eliminate only the harmonics at frequencies
A capacitive load in voltage source inverters generates ________________?