Electronics - Diodes and Applications - Discussion

2. 

Which type of transformer is required to create a 180 degree input to a rectifier?

[A]. center-tapped secondary
[B]. step-down secondary
[C]. stepped-up secondary
[D]. split winding primary

Answer: Option A

Explanation:

No answer description available for this question.

Kazi said: (Jul 26, 2011)  
The centre tap will act as a common terminal between the diode hence we will get a 180 degree input to a rectifier.

Vasanthi.M said: (Sep 14, 2012)  
Centre tap transmformer having three terminal one common terminal so it gives 180 degree input to rectfier.

Priyanga.S said: (Oct 18, 2012)  
Explain the operation of center tap transformer.

Anbalagan said: (Feb 17, 2013)  
In center tapped transformer, it gives both positive and negative amplitudes with respect to the common terminal. So this will become 180 degree i/p to the rectifier.

Balwindwe Singh said: (Mar 4, 2013)  
If we does not use common terminal then what will be the phase shift.

Snehanjali Basa said: (Mar 15, 2013)  
Transformer having two winding. At the secondary winding, one common terminal is divided the winding into two equal half winding. The 1st half for 0-90 degree (+ve half cycle) and another half for 90-180 degree (-ve half cycle). And that common terminal is called as center tapped terminal. Like that centered tapped transformer is required for 180 degree input to rectify.

Amarjit Singh said: (Jun 14, 2014)  
180 degree phase shift takes place due to the common terminal.

Naina said: (Oct 18, 2014)  
CENTER TAP TRANSFORMER WORKS FOR ONLY HALF CYCLE OF FULL WAVE THAT IS 180.

Pravin said: (Jan 2, 2016)  
It is true answer.

Abar -4744 said: (Oct 19, 2019)  
@Snehanjali basa.

First half(0-180)..
2nd half (180-390).
Center tapped (common terminal help us to split the wave cycles). If don't use this tapp the output will be sinewave.

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