In this chapter, we shall discuss the circuits and magnetics
that create harmonics (multiples of the line frequency) and/or
interharmonics (other high-frequency components).
Harmonics are generated by rectifiers, line-frequency
converters, and nonlinear magnetics. Interharmonics are
created by high-frequency switching power supplies. For most
of what we shall do in this chapter, the fundamental
frequency used will be 60 Hz.