Understanding Motor Controls
4th Edition
ISBN: 9781337798686
Author: Stephen L. Herman
Publisher: Delmar Cengage Learning
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Chapter 54, Problem 1RQ
To determine
The polarity of the output from the operational amplifier.
Expert Solution & Answer
Explanation of Solution
The polarity of the input for Inverting pin changes at the output. For suppose if negative input is given, the polarity at the output will be positive. The polarity for the input given in non-inverting pin doesn’t change at the output as well.
When the voltage connected to the inverting is more positive, the output from the pin will be more negative. Thus irrespective of the input at the non-inverting pin, the net output from the op amp will be negative.
Thus, the polarity of the output from the operational amplifier is negative.
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Chapter 54 Solutions
Understanding Motor Controls
Ch. 54 - Prob. 1RQCh. 54 - Prob. 2RQCh. 54 - Prob. 3RQCh. 54 - Prob. 4RQCh. 54 - Prob. 5RQCh. 54 - Prob. 6RQCh. 54 - Name two effects of negative feedback.Ch. 54 - Refer to Figure 548. If resistor R1 is 200 ohms...Ch. 54 - Refer to Figure 54–9. If resistor R1 is 470 ohms...Ch. 54 - What is the purpose of the hysteresis loop when...
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