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lesson23

# lesson23 - Lesson 23 Signals I(Section 5-1 through 5-3 and...

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Lesson 23 – Signals I (Section 5-1 through 5-3, and 5-7) (CLO 5-1) We will now have a change of pace; away from design to developing a repertoire of signals that we will use to excite circuits and use to represent solutions of circuit behavior. This is the start of a three-lesson block on signals. The first lesson is on Singularity functions (impulse, unit step and ramp) and exponentials, the second lesson is on sinusoids and partial descriptors (V P ,V PP , V MAX , V MIN , V AVG , V RMS .) The third lesson is on generating composite signals using software. We look at signals now just before we introduce capacitors and inductors – devices with i-v properties that depend on time-varying current or voltage. Begin the lesson by telling students that we are transitioning from dc signals – rather boring, constant signals, to the study of ac signals – more exciting signals that vary with time and have the ability to carry information. In fact, the more unpredictable a signal is the more information it can contain. We start by looking at waveforms – the way we describe time-varying signals. We will look at simple ac signals since we will use them to understand how circuits behave when driven by them.

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lesson23 - Lesson 23 Signals I(Section 5-1 through 5-3 and...

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