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Navigation: Library > Signal > Block Diagram > differentiate-svf |
  
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Signal\Block Diagram
Domains: Continuous. Size: 1-D. Kind: Block Diagrams.
This model approximates the differentiation of an input with a state variable filter:
As can be seen, no differentiation is used in this model and consequently all integration algorithms can be used. In the S-domain the output of this model is equal to:
For very high values of N, the output becomes the pure derivative of the input. High values of N, however, increase simulations times. A good trade-off is a starting value of 10. If more accuracy is needed, this value can be increased.
Inputs |
Description |
input |
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Outputs |
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output |
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Parameters |
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N initial |
Derivative Gain Limitation. The initial value of the output. |