Upcoming webinar: Digital feedback control loops in the frequency domain
Webinar details
Date: May 8, 2025 | 11 a.m. PST
Speaker: John Miller, Ph.D.
Applications Engineer, Liquid Instruments
Co-host: Aimee Kalnoskas
Editor in Chief, EE World Online
Overview
Feedback control systems are omnipresent across all scientific fields. Researchers use them to simplify complex systems and focus on the most critical aspects of their work. In industrial settings, control loops help to increase efficiency, reduce waste, and ultimately boost profits.
In this presentation, you’ll learn the essentials of feedback control loops as described in the frequency domain. Beginning from the fundamental ideas of transfer function and frequency response, you will see how to construct complex systems from basic building blocks. Then, you’ll learn how to analyze their performance in terms of reference tracking and disturbance rejection, while focusing on loop stability.
To conclude the discussion, we’ll use reconfigurable, FPGA-based instrumentation to demonstrate a feedback control loop. Join us to see how the all-digital, software-defined framework enables swift parameter changes with integrated characterization and measurement tools that ensure design goals can be quickly achieved. A live Q&A session will follow the presentation. Presented as part of the EE Training Days webinar series with EE World Online.
What you’ll learn:
- Learn about the theory of control loops in the frequency domain.
- Find out how the FPGA-based Moku PID Controller can offer a complete, closed-loop control system in one device.
- See how a digital control loop can speed up iteration compared to analog circuits.
Who should attend:
- Academic researchers working with laser and cavity stabilization
- Researchers working with integrated circuits and semiconductor devices
- Students wishing to learn more about techniques and instrumentation
Once an evangelical Liquid Instruments customer, John Miller is now an applications engineer supporting the European market. Working at the interface of product development and sales, John supports scientists and engineers using Moku devices across a range of fields. John pursued academic research related to interferometric gravitational wave detectors at Caltech and MIT for almost two decades before transitioning to a career in industry, where he focused on LiDAR sensors for mobile and automotive applications. John holds M.Sci. and Ph.D. degrees in physics from the University of Glasgow.
