Page 70 - Understanding Automotive Electronics

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THE SYSTEMS APPROACH TO CONTROL AND INSTRUMENTATION 2

Figure 2.21
Frequency Response for Operational Amplifier Circuit

accuracy by responding only to valid inputs. When noise or other disturbances
threaten to change the system plant’s output, good design will eliminate them
from system performance as much as possible. The more this invalid response is
eliminated, the more noise immunity the control system has. Accuracy, quick
response, stability, and noise immunity are all determined by the control system
configuration and parameters chosen for a particular plant.
The purpose of a control system is to determine the output of the system
(plant) being controlled in relation to the input and in accordance with the
operating characteristics of the controller. The relationship between the

UNDERSTANDING AUTOMOTIVE ELECTRONICS 57