In a full-wave rectifier with a center tap, a single diode conducts once every half cycle.In contrast, two diodes connected in series conduct once every half cycle in a bridge rectifier.As a result, a bridge rectifier has a higher voltage drop.
Why is a Full Wave Bridge Rectifier better than a Full Wave Center Tapped Rectifier?
- A bridge rectifier does not require a bulky center tapped transformer, nowadays the center tapped transformers are costlier than diodes and a step-down transformer hence reduced size and cost.
- The bridge rectifier's principal benefit is that it generates roughly twice as much output voltage as a full-wave rectifier using a center-tapped transformer.
- However, this circuit is similar to a low-cost rectifier because it does not require a center-tapped transformer. A half-wave rectifier is less efficient than a bridge rectifier.
- However, the center-tapped full-wave rectifier and the Bridge Rectifier can have the same efficiency.Compared to a half-wave rectifier, a bridge rectifier produces a smooth output.
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