hope i helped....Jacaranda said:Servomechanisms. These are feedback control systems in which one or more of the system signals reresent mechanical motion. They are usually used to control an output position mechanically in response to input signal changes. Servomechanisms may be regulators. The automatic pilot of an aeroplane is a servomechanism that uses operational amplifiers and feedback systems.
Don't fully get it thoughDiscuss how a control system can be used to provide feedback in a circuit.
A control system is a system where a particular input gives rise to a particular output. Such a system is the operational amplifier and part of its output can be fed back to the input, through a control system consisting of a feedback resistor, in an inverting amplifier. The output is out of phase with the input and produces a negative or positive feedback. The control system that provides feedback produces a number of advantages if the feedback is negative. The advantages include predictable voltage generation, increased stability and reduction of distortion.