20 Questions
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
What is the function of a transformer in the power supply?
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
What is the function of a rectifier in the power supply?
To convert the AC input voltage to pulsating DC
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
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
What is the purpose of a filter in a rectifier circuit?
To reduce the fluctuation in the rectified output voltage or ripple
Which type of regulator produces a constant DC output voltage by reducing the ripple to a negligible amount?
Shunt regulator
What does line regulation aim to achieve?
Maintain a nearly constant output voltage when the input voltage varies
How can load regulation be defined?
The percentage change in the output voltage from no-load to full-load
What is the function of a series regulator circuit?
Control element in series with load between input and output
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
What is the primary function of the rectifier in a power supply?
Convert AC to DC
What is the main purpose of a filter in a rectifier circuit?
Reduce ripple in the output voltage
Why is the pulsating DC voltage output from the rectifier not suitable for direct use in electronic devices?
It has a high ripple voltage
What is the function of regulation in a regulated power supply?
To maintain a constant DC output voltage
What is the primary purpose of a filter in a rectifier circuit?
To reduce the fluctuation in the rectified output voltage or ripple
Which two categories are used to define the types of voltage regulation?
Line regulation and load regulation
What is the function of line regulation in a power supply?
To maintain a nearly constant output voltage when the input voltage varies
Which type of linear regulator is connected in series with the load?
Series regulator
What does load regulation aim to achieve in a power supply?
To maintain a nearly constant output voltage when the load varies
Test your knowledge of power supplies and their function in providing DC voltage for electronic circuits. Learn about the various types of power supplies, their components, and the process of converting AC mains electricity to DC power.
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