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Thereof, why center tapped transformer is used?

A centre-tapped transformer also known as two phase three wire transformer is normally used for rectifier circuits. When a digital project has to work with AC mains a Transformer is used to step-down the voltage (in our case, to 24V or 12V) and then convert it to DC by using a rectifier circuit.

One may also ask, what is a tapped transformer? Tapping of a transformer means the connection point along the transformer winding to select the suitable number of terms. By Tapping, you can get different turns ratio and be able to control output & voltage regulation. Like, from the figure 1,2,3,4 are tappings on primary & A,B,C,D are tappings on the secondary.

Besides, how does a center tapped transformer work?

The center tapped full wave rectifier uses a center tapped transformer to convert the input AC voltage into output DC voltage. When input AC voltage is applied, the secondary winding of the center tapped transformer divides this input AC voltage into two parts: positive and negative.

What are the two main types of transformer?

The different types of transformer are Step up and Step down Transformer, Power Transformer, Distribution Transformer, Instrument transformer comprising current and Potential Transformer, Single phase and Three phase transformer, Auto transformer, etc.