5.7 Frequency Response of Circuits
Time-domain signals have a frequency-domain counterpart, e.g.; music is a time varying sound signal with, inter alia, bass, mid-range and treble characteristics (components)
The concomitant mathematical relationships were discovered in 1822 by Jean Baptiste Joseph Fourier (1768-1830)
See text equation 5.129 (p. 185) and its accompanying Figure 5.20 (p. 186) = next slide, as well as text Appendix C (p. 753)
Signals of all sorts (e.g., sound) can be converted to electrical signals (voltage and current waveforms) via transducers
Electrical signals can be “processed” by electric circuits because electric circuit behavior is frequency dependent