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Electronic Devices - Voltage Regulators

Exercise : Voltage Regulators - General Questions
31.
Refer to the given figure. This circuit is known as

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.
32.
The purpose of the added RC section is to pass most of the dc component while reducing as much of the ac component as possible.

True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
In a series regulator, what is the purpose of fold-back limiting?
to provide more current in the case of a short circuit
to limit output voltage if input voltage goes too high
to bypass the pass-transistor, if the pass-transistor should fail
to provide current up to a maximum, but drop current to a lower value when the output becomes shorted, to prevent overheating of the device
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
Refer to the given figure. The purpose for the zener diode D1 is

to supply a reference voltage.
to amplify the error signal.
to sense the error signal.
to limit the input voltage to the circuit.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
In a simple series regulator circuit, which of the following components is the controlling element?
Load resistor
Zener diode
Transistor Q1
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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