|Table of contents|
|Control System Introduction|
|Open Loop & Closed Loop Systems|
|Closed Loop System OR Feedback System|
|Comparison Between Open Loop & Closed Loop System|
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(a) Simple and economic
(b) No stability problem
(c) The effect of parameter variation and external noise is more.
Examples of Closed Loop Systems are:
(a) Accurate and reliable.
(b) Reduces effect of parameter variations.
(c) Bandwidth of the system can be increased.
(d) Reduces effect of non-linearities
(a) The system is complex and costly.
(b) System may become unstable.
(c) Gain of the system reduced with negative feedback.
Closed Loop System