Environmental Engineering Reference
In-Depth Information
Similarly, if
we have
The input waveform is not restricted to be either sinusoidal or ex-
ponential. A given input waveform can be represented by a set of
elementary basis functions. The response of circuits to each of these
basis functions is first computed separately. The complete response
of the circuit is then obtained by summing up its response to each of
these basis functions using the principle of superposition.
As an example, consider a linear circuit with its input
approxi-
mated by the piecewise-linear waveform
with step
as shown
in Fig.6.1. The input in the time interval
is given by
where
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