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Bridge Rectifier Fundamentals

Other Subjects10 CardsCreated 8 days ago

This deck covers the basics of bridge rectifiers, including their definition, working principle, output characteristics, advantages, limitations, and applications.

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What is a bridge rectifier?

A circuit made of four diodes arranged in a bridge to convert AC into DC.
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Key Terms

Term
Definition
What is a bridge rectifier?
A circuit made of four diodes arranged in a bridge to convert AC into DC.
How does a bridge rectifier work during the positive half-cycle?
Current flows through two diodes, delivering a positive output.
What happens during the negative half-cycle in a bridge rectifier?
The other two diodes conduct, but the output remains positive, achieving full-wave rectification.
What type of DC does a bridge rectifier produce?
Pulsating DC, which is not smooth.
How can the ripples in the output of a bridge rectifier be reduced?
By adding a filter capacitor or a smoothing circuit.
What are the advantages of a bridge rectifier?
Efficiency, higher average DC output voltage, and a reliable and compact design.
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Bridge Rectifier Fundamentals
TermDefinition
What is a bridge rectifier?
A circuit made of four diodes arranged in a bridge to convert AC into DC.
How does a bridge rectifier work during the positive half-cycle?
Current flows through two diodes, delivering a positive output.
What happens during the negative half-cycle in a bridge rectifier?
The other two diodes conduct, but the output remains positive, achieving full-wave rectification.
What type of DC does a bridge rectifier produce?
Pulsating DC, which is not smooth.
How can the ripples in the output of a bridge rectifier be reduced?
By adding a filter capacitor or a smoothing circuit.
What are the advantages of a bridge rectifier?
Efficiency, higher average DC output voltage, and a reliable and compact design.
What is a limitation of a bridge rectifier?
The output still has ripples and requires filtering for smooth DC.
In what applications are bridge rectifiers commonly used?
Power supplies, battery chargers, radio signal detection, and industrial uses like welding.
Why is a bridge rectifier more efficient than a half-wave rectifier?
It uses the entire AC cycle for rectification.
What is an analogy for understanding how a bridge rectifier works?
AC is like water sloshing in a pipe; the rectifier redirects it to always flow forward.