Controller control theory, Controller control theory - Basic Principles, Controller control theory - Types of Control, Controller control theory - Types of Controllers
ARTICLES RELATED TO Controller control theory - Basic Principles
A controller is the brain component of a system that monitors certain input variables and adjusts other output variables to achieve the desired operation. For example, a house may have a heating system equipped with a controller known as a thermostat. The thermostat senses when the temperature (input) in the house is too cold, and starts up the heater (controlled output). After a while, the thermostat sen ...
In control theory there are two basic types of control. These are feedforward and feedback. The input to a feedback controller is the same as what it is trying to control - the controlled variable is "fed back" into the controller. The thermostat of a house is an example of a feedback controller. This controller relies on measuring the controlled variable, in this case the temperature of the house, and then adjusting the output, whether or not the heater is on. However, feedback control usually results in intermediate periods where the contr ...
