Page 113 - Schaum's Outline of Theory and Problems of Electric Circuits

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(b) Periodic pulse: WAVEFORMS AND SIGNALS [CHAP. 6

V 1 for 0 < t < T 1
v 2 ðtÞ¼ ð2Þ
V 2 for T 1 < t < T
See Fig. 6-1(b).

Fig. 6-1(b)

(c) Periodic tone burst:

V 0 sin 2 t= for 0 < t < T 1
v ðtÞ¼ 0 for T 1 < t < T ð3Þ
3
where T ¼ k and k is an integer. See Fig. 6-1(c).

Fig. 6-1(c)

(d) Repetition of a recording every T seconds:
v 4 ðtÞ ð4Þ
See Fig. 6-1(d).

Fig. 6-1(d)

Periodic signals may be very complex. However, as will be seen in Chapter 17, they may be
represented by a sum of sinusoids. This type of function will be developed in the following sections.