difference between full wave and bridge rectifier pdf

Difference Between Full Wave And Bridge Rectifier Pdf

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A Full wave rectifier is a circuit arrangement which makes use of both half cycles of input alternating current AC and converts them to direct current DC. In our tutorial on Half wave rectifiers , we have seen that a half wave rectifier makes use of only one-half cycle of the input alternating current. This process of converting both half cycles of the input supply alternating current to direct current DC is termed full wave rectification.

Half Wave and Full Wave Rectifiers are the two categories of rectifier circuits. The crucial difference between Half Wave and Full Wave Rectifier is that a half wave rectifier converts only one-half cycle of the ac input supplied into pulsating dc signal. As against a full wave, rectifier converts both halves of the applied input signal into pulsating dc.

Difference between Center Tapped Full Wave and Bridge Rectifier

It utilizes only half of AC cycle for the conversion process. The Half-Wave Rectifier is unidirectional; it means it will allow the conduction in one direction only. This is the reason that it is called Half Wave Rectifier. While Full-wave Rectifier, is bi-directional, it conducts for positive half as well as negative half of the cycle. Thus, it is termed as full wave rectifier. Half Wave Rectifier circuit consists of a single diode and a step-down transformer, the high voltage AC will be converted into low voltage AC with the help of step-down transformer. After this, a diode connected in the circuit will be forward biased for positive half of AC cycle and will be reversed biased during negative half.

One of the most popular applications of the diode is rectification. The rectifier is a device that converts an alternating current AC to pulsating direct current DC. This pulsating DC has some ripples in it that can remove by using a smoothing capacitor. In full wave bridge rectifier, the whole input waveform is utilized when compared to half wave rectifier. Whereas in half wave rectifiers only half wave is utilized.

Difference Between Half Wave and Full Wave Rectifier

In both cases, rectification is performed by utilizing the characteristic that current flows only in the positive direction in a diode. Full-wave rectification rectifies the negative component of the input voltage to a positive voltage, then converts it into DC pulse current utilizing a diode bridge configuration. In contrast, half-wave rectification removes just the negative voltage component using a single diode before converting to DC. From this, it can be said that full-wave rectification is a more efficient method than half-wave rectification since the entire waveform is used. Also, a ripple voltage that appears after smoothing will vary depending on the capacitance of this capacitor and the load. Given the same capacitance and load, ripple voltage is smaller with full-wave rectification than haif-wave rectification.

The main difference between a Center Tapped and Bridge Rectifier is that one uses center tapped transformer while another do not require a center tapped transformer. Both these types are full wave rectifiers but their method of converting AC input into DC is different by employing different numbers of diodes. In center tapped full wave rectifier, two diodes are used whereas four diodes are used in bridge rectifiers. Before diving into the differences between the center tapped full wave and bridge rectifiers, it is advised to first read the working principle and circuit diagram of these two types of rectifiers. For recapping the working of both types of rectifiers, their circuit diagram is shown below. The size of transformer required for producing same DC output is less in bridge rectifier when compared with center tapped full wave rectifier.

Many electrical devices run on DC or direct currents, but the signal coming out the wall is AC or alternating current. Rectifier circuits are used to convert AC currents to DC currents. There are many types, but two common ones are full-wave and bridge. Rectifier circuits are constructed with the use of diodes as a basis. This is because diodes have the ability to change AC to DC. Rectifiers make it possible for electronic devices, such as portable volt DC power drills, to use the volt AC that is supplied from wall outlets.


are widely used in power supplies that provide necessary DC voltage for the electronic components or devices. The main.


Full wave bridge rectifier

The process of converting the AC current into DC current is referred to as rectification. Rectification can be achieved by using a single diode or group of diodes. These diodes which convert the AC current into DC current are referred to as rectifiers. Rectifiers are typically classified into two types, which include half wave rectifier and full wave rectifier. All these rectifiers have a common aim that is to convert alternating current AC into direct current DC.

A Rectifier circuit that rectifies both the positive and negative half cycles can be termed as a full wave rectifier as it rectifies the complete cycle. The construction of a full wave rectifier can be made in two types.

Full-Wave Rectification and Half-Wave Rectification

In Full Wave Bridge Rectifier , an ordinary transformer is used in place of a center-tapped transformer. The circuit forms a bridge connecting the four diodes D 1 , D 2, D 3 , and D 4. The circuit diagram of the Full Wave Bridge Rectifier is shown below. The AC supply which is to be rectified is applied diagonally to the opposite ends of the bridge. Whereas, the load resistor R L is connected across the remaining two diagonals of the opposite ends of the bridge. When an AC supply is switched ON, the alternating voltage V in appears across the terminals AB of the secondary winding of the transformer which needs rectification.

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The PIV (peak inverse voltage) ratings of the diodes in bridge rectifier is half than that of needed in a center tapped full wave rectifiers. Whereas in center tapped rectifiers, the peak inverse voltage coming across each diode is double the maximum voltage across the half of the secondary winding.


Difference Between Full Wave Bridge Rectifier and Full Wave Center Tap Rectifier

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