Technical Interviews: Excel with Ease

Block 7

Waveform Fundamentals

1. Draw a symmetrical square waveform. Now tell me how can you transform this waveform into a sinusoidal waveform with the same frequency?
2. If you want to generate a sinusoidal waveform with thrice the frequency of the square waveform, then what would you do?
3. If you want to convert a sinusoidal waveform into a square waveform, which circuit block would you use?
4. If you want to transform a given symmetrical square waveform into a triangular waveform, which circuit block will you use?
5. If you have a symmetrical pulsed waveform and you want to generate another symmetrical pulsed waveform with half the frequency, what would be the simplest way to do that in your opinion?
6. What is Fourier series and what is Fourier transform? ...