In electronics and electrical science there are many different types of waveform that are encountered.
These electronics waveforms include sine waves, square waves, rectangular waves, triangular waves, sawtooth waves and ramp waveforms. All these electronic waveforms are seen in different electronic circuit designs and having a good understanding of what they are and how they are made up can give a better understanding of what is happening in the circuit.
This video describes the main electrical and electronic waveform types that are seen: sine waves, square waves, rectangular waves, triangular waveforms, and sawtooth or ramp waveforms.
The first description of a waveform given is for the sine wave as this forms the basis of all other periodic waveforms. Details of the period or time for each cycle are given along with an explanation of the frequency and amplitude.
The spectrum of the electronic waveform is also shown, and from this it can be seen that a perfect sine wave has no harmonics.
The square wave is also described, mentioning that the term, square wave is often used as the generic description for all waveforms having vertical sides.
The spectrum for the square wave is shown and this reveals that it consists of a fundamental sine wave having the same basic period as that of the square wave and a series of odd integer harmonics.
The same treatment is also given for other forms of electronic waveform: the triangular waveform and ramp waveform (both the positive and negative ramps).
Finally a comparison of the sounds of the different electronic waveforms is given so that the differences can be heard.
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