Automatic gain control (AGC) is a closed-loop feedback regulating circuit in an amplifier or chain of amplifiers, the purpose of which is to maintain a suitable signal amplitude at its output, despite variation of the signal amplitude at the input. The average or peak output signal level is used to dynamically adjust the gain of the amplifiers, enabling the circuit to work satisfactorily with a greater range of input signal levels. It is used in most radio receivers to equalize the average volume (loudness) of different radio stations due to differences in received signal strength, as well as variations in a single station's radio signal due to fading. Without AGC the sound emitted from an AM radio receiver would vary to an extreme extent from a weak to a strong signal; the AGC effectively reduces the volume if the signal is strong and raises it when it is weaker. In a typical receiver the AGC feedback control signal is usually taken from the detector stage and applied to control the gain of the IF or RF amplifier stages. (Wikipedia).
What Is Gain Scheduling? | Control Systems in Practice
Often, the best control system is the simplest. When the system you’re trying to control is highly nonlinear, this can lead to very complex controllers. This video continues our discussion on control systems in practice by talking about a simple form of nonlinear control: gain scheduling.
From playlist Control Systems in Practice
Fuzzy control of inverted pendulum
Fuzzy control of inverted pendulum, State-feedback controller is designed based on T-S fuzzy model with the consideration of system stability and performance.
From playlist Demonstrations
Fuzzy control of inverted pendulum,
Fuzzy control of inverted pendulum, State-feedback controller is designed based on T-S fuzzy model with the consideration of system stability and performance. Details can be found in https://nms.kcl.ac.uk/hk.lam/HKLam/index.php/demonstrations
From playlist Demonstrations
Torque Converter, How does it work?
Most of us enjoy the smooth and effortless feeling of driving in an automatic transmission car. The driving is effortless because you don’t need to worry about gear changing and you don’t have a clutch pedal to operate. In an automatic transmission car the work, of the clutch pedal, is aut
From playlist Automobile Engineering
What Is Feedforward Control? | Control Systems in Practice
A control system has two main goals: get the system to track a setpoint, and reject disturbances. Feedback control is pretty powerful for this, but this video shows how feedforward control can make achieving those goals easier. Temperature Control in a Heat Exchange Example: http://bit.ly
From playlist Control Systems in Practice
How did Automatic Transmissions Beat Out Manuals?
For ages, manual transmissions were the best way to control the shifting in cars, but recent advances have made the automatic dominant. Manual transmissions are, unfortunately, become a dying a breed in the US, but let’s look at why. Automatic transmissions were invented by GM in the 193
From playlist Concerning History
In this video we discuss the DC gain of a dynamic system. Topics and time stamps: (0:12) – Introduction to DC gain (7:04) – Derivation of DC gain (11:49) – Relationship between DC gain and steady state error (15:31) – Example of DC gain of a mass, spring, damper Additional videos in this
From playlist Control Theory
Field-Oriented Control of PMSMs with Simulink, Part 4: Controller Autotuning
In this video, we demonstrate how to automatically tune the gains of the current and the speed loops of the PMSM using the Field Oriented Controller Autotuner block in desktop simulation. You can generate code from this block and deploy it on a Speedgoat real-time machine to autotune gains
From playlist Field-Oriented Control of PMSMs with Simulink
Automatic Tuning of Multi-Loop DC Motor Controller
Automatically tune a cascaded multi-loop control system for a DC motor using Control System Tuner. Introduction to Brushless DC Motor Control ebook: https://bit.ly/3dd3SaB Get a Free Trial: https://goo.gl/C2Y9A5 Get Pricing Info: https://goo.gl/kDvGHt Ready to Buy: https://goo.gl/vsIeA5
From playlist Control System Design and Analysis
Automatic Tuning of a Multivariable Distillation Column Controller - Simulink Video
Design a 2-by-2 controller for a distillation column. Download a free trial of Simulink Control Design: https://goo.gl/AtpfME Learn more about Simulink Control Design: http://goo.gl/ZwKo6G Tune two PI (proportional-integral) controllers and a decoupling matrix automatically to meet design
From playlist Control System Design and Analysis
Manual and Automatic PID Tuning Methods | Understanding PID Control, Part 6
The previous video showed three different approaches to developing a mathematical model of your physical system. Now that we have this model, we can use it to tune a PID controller that will work to control the physical system. PID tuning can be thought of in two ways: Adjusting the t
From playlist Understanding PID Control
Control Design with MATLAB and Simulink
Learn how to get started with using MATLAB® and Simulink® products for designing control systems. Get a Free MATLAB Trial: https://goo.gl/C2Y9A5 Download PID Tuning Examples and Code: https://bit.ly/3hrkY8d Ready to Buy: https://goo.gl/vsIeA5 Learn more about MATLAB: http://goo.gl/YKad
From playlist MATLAB Virtual Conference 2014
PID Controller Tuning for a Buck Converter
Learn more about simulating digital control for power electronics: http://bit.ly/2P0GMff Learn how to tune the gains of a PID controller for a buck converter. A buck converter steps down the input voltage to desired value and automatically compensates for changes in the source voltage and
From playlist Power Conversion Control
4 Ways to Implement a Transfer Function in Code | Control Systems in Practice
Check out the other videos in the series: Part 1 - What Does a Controls Engineer Do? https://youtu.be/ApMz1-MK9IQ Part 2 - What Is Gain Scheduling? https://youtu.be/YiUjAV1bhKs Part 3 - What Is Feedforward Control? https://youtu.be/FW_ay7K4jPE Part 4 - Why Time Delay Matters https://youtu
From playlist Control Systems in Practice
PID Control of a Brushless DC Motor
Get free resources on Modeling and Simulating Motor Controllers: http://bit.ly/2P6Lt7h Learn how to automatically tune gains of a cascaded PID controller that controls the inner voltage and the outer speed loop of a brushless DC motor with a trapezoidal back-EMF. Learn more about motor
From playlist Power Electronics Control Design
How to Automatically Tune PID Controllers
Learn how to automatically tune PID controllers, whether you have an existing mathematical model of your dynamic system or you are tuning your PID parameters based on the response of an algorithm running on hardware. Automatic PID tuning can work for a variety of systems and will save deve
From playlist “How To” with MATLAB and Simulink
Quality Audio Recording for Video
I learnt a few things after years of battling audio noise. I think my throat is ready to rest! It would be pretty awesome if you support ElectroBOOM at Patreon: http://patreon.com/electroboom Check my tee-shirts at: http://teespring.com/stores/electroboom Read other articles at: http:/
From playlist Non-Electronics
Control System Design with MATLAB and Simulink
Watch live as Siddharth Jawahar and Arkadiy Turevskiy walk through systematically designing controllers in Simulink using Simulink Control Design. Simulink Control Design lets you design and analyze controllers in Simulink. You will learn how you can automatically tune arbitrary SISO and
From playlist MATLAB and Simulink Livestreams
PID Controller Tuning Based on Measured Input Output Data
Get a Free Trial: https://goo.gl/C2Y9A5 Get Pricing Info: https://goo.gl/kDvGHt Ready to Buy: https://goo.gl/vsIeA5 Identify a plant model from measured input-output data and use this model to tune PID Controller gains. For more videos, visit: http://www.mathworks.com/videos/search.html?
From playlist Control System Design and Analysis
Understanding Control Systems, Part 3: Components of a Feedback Control System
Discover the components of a feedback control system and how they interact with each other. Watch other MATLAB Tech Talks: https://goo.gl/jD0uOH Get a free Product Trial: https://goo.gl/C2Y9A5 Learn basic terminology by walking through examples that include driving a car manually and usi
From playlist Understanding Control Systems