A Better Way to Think About a Notch Filter | Control Systems in Practice

Check out the other videos in the series:
Part 1 - What Does a Control Engineer Do?    • What Control Systems Engineers Do | C...  
Part 2 - What is Gain Scheduling?    • What Is Gain Scheduling? | Control Sy...  
Part 3 - What is Feedforward Control?    • What Is Feedforward Control? | Contro...  
Part 4 - Why Time Delay Matters    • Why Time Delay Matters | Control Syst...  

This video describes an intuitive way to approach notch filter design by thinking about the problem as an inverted, lightly damped, second-order low-pass filter. Then, two additional poles are added to the resulting transfer function to make it realizable and to allow control over the width of the notch. This approach provides a little insight into how each of the terms in the transfer function contribute to the overall shape and location of the notch filter.

Additional Resources:

- Varying Notch Filter with MATLAB: https://bit.ly/2RnJ1bZ
- Configure Notch Filter Dynamics with Control System Designer in MATLAB: https://bit.ly/2RlkpAI
- Tuning a Digital Motion Control System: https://bit.ly/35A8g3m
- Getting Started with Control System Designer: https://bit.ly/35Fz7L4

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