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The minimum voltage required across a linear voltage regulator to maintain regulation is known as _______.

This question was previously asked in
RRB ALP Electronics Mechanic 23 Jan 2019 Official Paper (Shift 3)
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  1. Output voltage
  2. Input voltage
  3. Load voltage
  4. Dropout voltage

Answer (Detailed Solution Below)

Option 4 : Dropout voltage
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Detailed Solution

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Dropout voltage refers to the minimum voltage difference required for a voltage regulator to maintain its specified output voltage.

When the input voltage of a voltage regulator drops below the dropout voltage, the regulator can no longer maintain a stable output voltage and the output voltage will decrease.

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More Alternator Voltage Regulation Questions

Q1.Choose the correct option for the condition of maximum voltage regulation of an alternator.
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Q1.Which statements about voltage drop in an alternator are correct? I. The voltage drop due to armature resistance (IaRa) is in phase with the armature current (Ia). II. At unity power factor, the voltage drop IaRa directly subtracts from the generated EMF (E). III. For a leading power factor load, IaRa contributes to an increase in terminal voltage (V). IV. Armature resistance has no effect on voltage regulation.
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More Electrical Machines Questions

Q1.If a 6-pole induction motor operates on a 60 Hz supply, its synchronous speed is _____________.
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Q3.Which statements about voltage drop in an alternator are correct? I. The voltage drop due to armature resistance (IaRa) is in phase with the armature current (Ia). II. At unity power factor, the voltage drop IaRa directly subtracts from the generated EMF (E). III. For a leading power factor load, IaRa contributes to an increase in terminal voltage (V). IV. Armature resistance has no effect on voltage regulation.
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