Proportional control is an important method for control of systems.  The K.I.S.S. algorithm encourages you to keep your designs simple.  Proportional control is one of the simplest control methods, and if it works in your application, you should probably use it.

• Why learn about proportional control?
• Proportional control is one of the simplest control methods.  However, to use it well you need to understand possibilities and limitations of proportional control, and you need to understand it well for that.
• What should you know to learn about proportional control?
• Before you can begin to learn about proportional control, you should know about transfer functions (and laPlace transforms, Z-transforms, etc.)
• You should review the Final Value Theorem.
• You need to understand the general structure of a control system.
• You need to know about steady state error.
• What do you need to know about proportional control?
• You need to know what proportional control is.
• You need to know how to analyze proportional control systems.
• You need to know how to implement proportional control.
• How do you use proportional control?
• Proportional control can be implemented with analog controllers and digital controllers.
• What if proportional control cannot be made to work well enough?
• There are other kinds of controllers including Integral Contollers, PID Controllers, etc.
• Problems
• Click here for Problems on Proportional Control.

        Here are some links to experiments you can do that will help you learn about proportional control.