PWM:
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Create a model of a pulsewidth modulator using Padé approximants.
The pulsewidth is assumed fixed at tau. The function includes the
sampler gain of 1/tSamp;
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Form:
[a, b, c, d] = PWM( tau, tSamp, n )
[num, den] = PWM( tau, tSamp, n )
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Inputs
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tau (1,1) Nominal pulsewidth
tSamp (1,1) Sampling period
n (1,1) Number of terms (optional)
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Outputs
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a or num Numerator polynomial or plant matrix
b or den Denominator polynomial or input matrix
c Measurement matrix
d Feedthrough matrix
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Children:
Common: Control/Delay
Common: Control/FResp
Common: Control/ND2SS
Common: Control/ZOH
