Power Supply Basics

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What is the primary function of a power supply in electronic circuits?

To convert high voltage AC mains electricity to a suitable low voltage supply for electronics circuits (correct)

To convert DC voltage to high voltage AC mains electricity

To convert high voltage AC mains electricity to a stable high voltage supply for electronics circuits

To convert low voltage AC mains electricity to a suitable high voltage supply for electronics circuits

What is the function of a transformer in the power supply?

To regulate the DC voltage provided by the wall outlet

To step up or step down the AC voltage provided by the wall outlet to a desired amplitude through the action of a magnetic field (correct)

To convert AC voltage to DC voltage

To filter the AC voltage provided by the wall outlet

What is the function of a rectifier in the power supply?

To regulate the DC input voltage

To convert the DC input voltage to pulsating AC

To filter the DC input voltage

To convert the AC input voltage to pulsating DC (correct)

Why is the pulsating DC voltage output from the rectifier not suitable for direct use in electronic devices?

It can only be used as a battery charger, but not as a direct power supply Signup and view all the answers

What is the role of regulation in a regulated power supply?

To maintain a constant DC output voltage despite changes in the input or load Signup and view all the answers

What is the purpose of a filter in a rectifier circuit?

To reduce the fluctuation in the rectified output voltage or ripple Signup and view all the answers

Which type of regulator produces a constant DC output voltage by reducing the ripple to a negligible amount?

Shunt regulator Signup and view all the answers

What does line regulation aim to achieve?

Maintain a nearly constant output voltage when the input voltage varies Signup and view all the answers

How can load regulation be defined?

The percentage change in the output voltage from no-load to full-load Signup and view all the answers

What is the function of a series regulator circuit?

Control element in series with load between input and output Signup and view all the answers

Which component in a power supply is responsible for converting high voltage AC mains electricity to a suitable low voltage supply for electronic circuits?

Transformer Signup and view all the answers

What is the primary function of the rectifier in a power supply?

Convert AC to DC Signup and view all the answers

What is the main purpose of a filter in a rectifier circuit?

Reduce ripple in the output voltage Signup and view all the answers

Why is the pulsating DC voltage output from the rectifier not suitable for direct use in electronic devices?

It has a high ripple voltage Signup and view all the answers

What is the function of regulation in a regulated power supply?

To maintain a constant DC output voltage Signup and view all the answers

What is the primary purpose of a filter in a rectifier circuit?

To reduce the fluctuation in the rectified output voltage or ripple Signup and view all the answers

Which two categories are used to define the types of voltage regulation?

Line regulation and load regulation Signup and view all the answers

What is the function of line regulation in a power supply?

To maintain a nearly constant output voltage when the input voltage varies Signup and view all the answers

Which type of linear regulator is connected in series with the load?

Series regulator Signup and view all the answers

What does load regulation aim to achieve in a power supply?

To maintain a nearly constant output voltage when the load varies Signup and view all the answers

Power Supply Basics

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Questions and Answers

What is the primary function of a power supply in electronic circuits?

What is the function of a transformer in the power supply?

What is the function of a rectifier in the power supply?

Why is the pulsating DC voltage output from the rectifier not suitable for direct use in electronic devices?

What is the role of regulation in a regulated power supply?

What is the purpose of a filter in a rectifier circuit?

Which type of regulator produces a constant DC output voltage by reducing the ripple to a negligible amount?

What does line regulation aim to achieve?

How can load regulation be defined?

What is the function of a series regulator circuit?

Which component in a power supply is responsible for converting high voltage AC mains electricity to a suitable low voltage supply for electronic circuits?

What is the primary function of the rectifier in a power supply?

What is the main purpose of a filter in a rectifier circuit?

Why is the pulsating DC voltage output from the rectifier not suitable for direct use in electronic devices?

What is the function of regulation in a regulated power supply?

What is the primary purpose of a filter in a rectifier circuit?

Which two categories are used to define the types of voltage regulation?

What is the function of line regulation in a power supply?

Which type of linear regulator is connected in series with the load?

What does load regulation aim to achieve in a power supply?

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