Question
Download Solution PDFWhich of the following statements is correct when comparing a bridge rectifier to a centre-tapped full-wave rectifier?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe Correct Answer is: 4) The transformer Utilisation Factor (TUF) is better for a bridge rectifier than for a centre-tapped rectifier.
Explanation:
Transformer Utilisation Factor (TUF):
TUF indicates how efficiently the transformer is used in a rectifier circuit.
Bridge Rectifier TUF ≈ 0.812
Centre-Tapped Full-Wave Rectifier TUF ≈ 0.693
Therefore, a bridge rectifier uses the transformer more efficiently, making option 4 correct.
Additional Information
1) The PIV of both rectifiers is the same
False — In a bridge rectifier, each diode withstands only V<sub>m</sub> (peak voltage),
while in a centre-tapped rectifier, each diode must withstand 2V<sub>m</sub> ⇒ PIV is higher.
2) The transformer utilisation factor is the same for both
False — TUF is better in a bridge rectifier, not the same.
3) A bridge rectifier has double the PIV compared to the centre-tapped rectifier.
False — It's the centre-tapped rectifier that has higher PIV, not the bridge.
Final Answer:
4) The transformer utilisation factor (TUF) is better for a bridge rectifier than for a centre-tapped rectifier.
Last updated on Jun 7, 2025
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