Ensayo Control Digital DIGITAL CONTROL VS. ANALOG CONTROL

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DIGITAL CONTROL VS. ANALOG CONTROL

Víctor Manuel Villamil Grupo (D1).

Resume Digital Control

August 20th 2011.

UIS-E3T

DIGITAL CONTROL VS. ANALOG CONTROL

Take Control is know what is going on, valuing and if is necessary, applying corrective measures so that implementation is conducted in accordance with the proposed [1] Since always the man has wanted to control the world, understand how and why it works and be able to entirely handle himself to his own benefit, for control something you only need that this variable can be measurable, for this, since the beginning of humanity there have been millions of variables in which ones are possible make some kind of control. In modern times the desire of control what happens around us has been mainly focused on variables and systems that affect or impact the economy, environment and production, performing checks on thermodynamic, mechanical and electrical variables in large majority.

Industrial development has brought the occurrence of new processes and the necessary optimization of the existing ones in order to achieve high quality products using advanced technologies that require control systems with high performance and reliability. Mechanic and electronic have been from the beginning the best tools to carry out on industrial-type variables, but it was the electronic field the one that higher study what is related to the different control strategies, due not only to technological advance but the precision and accuracy that has been achieved after extensive studies and discoveries on this important branch. In the control electronic field, as well as electronics itself, the circuits can be divided into two widely categories: digitals and analogs. Digital electronics use magnitudes with discrete values, while analog electronics use magnitudes.

A digital system is any device destined for the generation, transmission, processing or storage of digital signals, is a combination of devices designed to manipulate physical quantities or information that is represented in digital form, i.e. it can only take discrete values. While an analog system is when the signal magnitudes are represented by continuous variables, this is analog to the magnitudes that result in the generation of this signal; an analog system contains devices that manipulate physical quantities represented in analog form. In such system, the amounts vary over a continuous range of values.

As a result of the experienced progress by digital computer almost all the control systems built today are based on sophisticated microprocessors and microcontrollers, which is why analogue control systems have been being displaced, but what benefits brings change an analog control system to a digital control system, and in what type of applications it should make that change, in line with the cost-benefit ratio that this change bring?

Digital control systems have a certain number of aspects that allow a significant improvement over any control system that are assigned, but also have certain disadvantages and problems that must be evaluated

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