November 2008
Intermediate to advanced
558 pages
12h 29m
English
Content preview from Control Systems Engineering, Second Edition
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5
Feedback Control System—Characteristics and Performance
5.1 OPEN-LOOP AND CLOSED-LOOP CONTROL SYSTEM
Introduction to control system and the concept of feedback was introduced in Chapter 1. In this chapter we are, once again, discussing the same topic in some more details.
A control system is formed by interconnecting various components to give a desired system response. An open-loop or non-feedback system (Fig. 5.1), with the help of a controller or actuating device, directly generates the output in response to an input.
Fig. 5.1 Open-loop or non-feedback system
A closed-loop or feedback system (Fig. 5.2) generates the output in response to ...
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