Rectangular Pulse Input to an RC Circuit, Frequency Domain I/O.
In this case a rectangular pulse is assumed to be input into a RC
circuit. The sampled input is shown in red. Orange output is
obtained using the difference equation equivalent to the Z
The B Magenta output is obtained by taking the inverse DFT of the
product of the DFT of the input and the transfer function.
For the Bilinear approximation, the Z transfer function is:-
BLTF = (1 + z^-1)/((2Tc/Ts + 1) + (1 - 2Tc/Ts)z^-1).
For the Back Difference approximation, the Z transfer function is:-
BDTF = (Ts/Tc)/((Tc + Ts)/Tc - z^-1).
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COPYRIGHT © 2007 Cuthbert Nyack.