In this chapter we study about the Introduction to Mixed-Frequency AC Signals, sinusoidal and non-sinusoidal waveforms.
Square waves are mathematically equivalent to the sum of a sine wave at that same frequency, plus an infinite series…
Any waveform at all, so long as it is repetitive, can be reduced to a series of sinusoidal waveforms added together.
Spectrum Analysis - Waveforms that are symmetrical above and below their horizontal centerlines contain no even-numbered harmonics.
Harmonics can cause problems by impressing unwanted (“noise”) voltage signals upon nearby circuits.
