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Electronic Devices - Voltage Regulators

Exercise : Voltage Regulators - General Questions
21.
A switching regulator that is configured as a voltage-inverter produces what type of output?
an ac output with opposite phase to the input ac
a dc output that is the negative of the dc input voltage
an output that is a higher voltage than the input voltage
an ac output from a dc input voltage
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
Refer to the given figure. This circuit is called

a series-pass voltage regulator.
a shunt voltage regulator.
a step-up switching regulator.
a step-down switching regulator.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
In Figure 17-1(a)(see question 6), the purpose of R1 is to
provide a reference voltage.
limit current through the diode.
limit voltage to the op-amp.
provide output voltage sampling.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
For a full-wave rectifier with ac ripple at 120 Hz, the impedance of a capacitor can be calculated using XC = ________.
0.707 ÷ C
1.414 ÷ C
1.3 ÷ C
0.785 ÷ C
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
What is the purpose of an additional RC filter section in a power supply circuit?
Increase the dc voltage component
Increase the ac voltage component
Decrease the ac voltage component
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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