Types of full-wave rectifier

Rectification is a process used to convert AC to DC, the rectifier is an important circuit at electronics because every circuit network works with DC.

The rectifier is a circuit used to convert alternating current (AC) into pulsing direct current (DC), there are only two types of rectifier networks half-wave rectifier and full-wave rectifier.

The half-wave rectifier circuit only rectify the positive half cycle and grounded out the negative half cycle, but the full-wave rectifier network rectify both positive and negative half cycles of the sinusoidal wave AC.

Types of full-wave rectifier
Types of full-wave rectifier

Types of full-wave rectifier

There are only two types of the full-wave rectifier circuit

  1. Full-wave center-tapped rectifier
  2. Full-wave bridge rectifier

Center-tapped full-wave rectifier

Center-tapped full-wave rectifier
Center-tapped full-wave rectifier

The figure shows the center-tapped transformer-based full-wave rectifier network, the circuit consist of two diodes tapped with a center-tapped transformer.

Center-tapped full-wave rectifier Working

The working of the center-tapped full-wave rectifier is simple because on both positive and negative half-cycles each of the diodes will conduct and oppose the flow of current.

When the positive half cycle reaches the circuit, the D1 diode will conduct and produce a half cycle.

Then the negative half cycle will reach the circuit, D2 diode will conduct and produce a half cycle.

Both the half cycles combined to form a full-wave rectifier output.

working of the center-tapped full-wave rectifier
working of the center-tapped full-wave rectifier

Bridged full-wave rectifier

Bridged full-wave rectifier
Bridged full-wave rectifier

The figure shows the bridge full-wave rectifier circuit, the circuit consist of four diodes connects to the bridge.

Bridged full-wave rectifier Working

The working principle of a bridge full-wave rectifier is the same as a center-tapped full-wave rectifier, but here instead of two diodes, we have four diodes.

When the positive half cycle reaches the bridge circuit, D1 and D2 diodes will conduct at a time and produce half cycle, D3, and D4 diodes will stop the flow of current.

And when the negative half cycle reaches the bridge circuit, D3 and D4 diode will conduct and produce a half cycle, and D1 and D2 will stop conducting.

Both the produced half-cycle combined to form a full-wave rectifier output.

Difference between center-tapped rectifier and bridge full-wave rectifier

The center-tapped full-wave rectifier and bridge full-wave rectifier are the main types of full-wave rectifiers.

Both of them had their difference and similarities, in this section, we try to explain the difference between full-wave center-tapped and full-wave bridge rectifiers.

FactorsCenter tapped rectifierBridge rectifier
Circuit arrangementTwo diodes with a center-tapped transformerFour diode
Ripple factor0.40.4
Efficiency80%85%
Voltage regulationGoodMuch better
Voltage dropLowHigh due to the presence of four
Circuit complexityLesshigh
PIV(Peak inverse voltage)2VS maxVS max
Transformer utilization factor (TUF)0.60.8

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