Switch Mode Power Supply: Need and Working

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Questions and Answers

What is the primary function of a voltage regulator in a d.c. power supply?

To remove ripples from the output and keep the output voltage constant.

Why is a voltage regulator necessary in a d.c. power supply?

To keep the output voltage constant and ripple-free despite changes in the load and input line voltage.

What would happen if a d.c. power supply does not have a voltage regulator?

The output voltage would be noisy and would vary with changes in the load and input line voltage.

What is the main characteristic of a d.c. power supply with a voltage regulator?

<p>Smooth, constant, and ripple-free output voltage.</p> Signup and view all the answers

Why is a voltage regulator necessary to provide a constant output voltage?

<p>To ensure that the output voltage remains constant despite changes in the load and input line voltage.</p> Signup and view all the answers

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