What is definition of centre tapped full wave rectifire?

Trycia Prosacco asked a question: What is definition of centre tapped full wave rectifire?
Asked By: Trycia Prosacco
Date created: Fri, Apr 30, 2021 5:12 AM

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Those who are looking for an answer to the question «What is definition of centre tapped full wave rectifire?» often ask the following questions:

☑️ What is the advantage of using the centre tapped full wave rectifier?

By using a center tap, with the tap connected to ground you can use one winding for the positive AC swing and the other winding (both relative to the center-tap) for the negative swing. Thus, when the secondary windings can be connected to the AC inputs of a full-wave-bridge rectifier to harvest a bi-polar DC power source. i.e. - a positive DC voltage 'rail' AND a negative DC voltage rail, say for example you have a 24VAC center tapped secondary of a 110VAC transformer. With a full-wave bridge, the center tap becomes the circuit 'ground' (aka 'return') in a DC circuit.

☑️ What is the disadvantage of using the centre tapped full wave rectifier?

  1. PIV of central taped rectifier is 2V. It means we have to use diodes of high ratings which is costly.
  2. Transformation core saturation occures in this rectifier.

☑️ How make a full wave rectifire?

There is an article in Wikipedia which gives full details on how rectifiers work - including circuit diagrams. See related link.

1 other answer

this is the circuit that show the power supply

Your Answer

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A full wave rectifier used with a centre tapped transformer has two diodes. No transistor is involved.

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