Question
Download Solution PDFConsider the following statements:
When compared with a bridge rectifier, a centre-tapped full wave rectifier:
i. Has larger transformer utilization factor.
ii. Can be used for floating output terminals i.e. no input terminal is grounded.
iii. Needs two diodes instead of four.
iv. Needs diodes of a lower PIV rating.
Which of the above statements are correct?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
|
Parameter |
Centre Tapped FWR |
Bridge rectifier |
|
D.C diode Voltage |
|
|
|
Peak inverse voltage(PIV) |
2Vm |
Vm |
|
Transformer utilization factor |
|
|
Definition:
Peak Inverse Voltage (PIV):
“It is the maximum voltage that diode can face under the Reverse Bias condition”.
Transformer utilization factor(TUF):
“It is the ratio of DC output power to AC rating of secondary winding”
i.e.,
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