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Electronic Devices - Voltage Regulators

Exercise : Voltage Regulators - General Questions
16.
What is the typical dropout voltage for the 7812 fixed positive voltage regulator?
4 mV
100 mV
1.5 V
2 V
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
What is the ratio of the period of the output voltage to the period of the input voltage in a full-wave rectifier?
0
0.5
1
2
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
If the value of full-load voltage is the same as the no-load voltage, the voltage regulation calculated is ________ %, which is the best expected.
0
1
99
100
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
Calculate the ripple of a filter output having a 20-V dc component and a 1.7 Vr(rms) ac component.
6%
8.5%
85%
58%
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
A voltage regulator has a no-load output of 18 V and a full-load output of 17.3 V. The percent load regulation is
0.25%.
96.1%.
4.05%.
1.04%.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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