## Rectifier

Rectifier is an electronics circuit which employs one or more diode to convert ac voltage into pulsating (not pure) dc voltage. The basic principle of rectifier is based on the fact that the resistance of p-n junction diode becomes low when forward biased and become high when reverse biased. In rectifier when ac current is passed through diode then it obstructs half of wave i.e. it only allow half wave from their output. The rectifier removes either negative or positive cycle depends upon connection of diode. This means rectifier change ac voltage to dc voltage with corresponding change in current. Or we can say rectifier convert alternating voltage into unidirectional pulsating voltage.

A p-n junction diode can be used as a rectifier in many way i.e.

**a.) Single-phase half-wave rectifier**

**AVERAGE AND RMS VALUE OF SINGLE-PHASE HALF-WAVE RECTIFIER****Efficiency of single-phase half-wave rectifier****Frequency Component of Half-Wave Rectifier Voltage and Current****Ripple Factor of single phase Half-Wave rectifier****Peak Inverse Voltage (PIV) of single phase half wave rectifier****Peak current of single phase half wave rectifier****Transformer Utilization Factor (TUF) of single phase half wave rectifier****Advantage and Disadvantage of single-phase half-wave rectifier**

**b.) Single-phase full-wave rectifier**

**Average and RMS value of center-tap full wave rectifier****Efficiency of single-phase center-tap full wave rectifier****Frequency Component of single-phase center-tap full wave rectifier****Ripple Factor of single-phase center-tap full-wave rectifier****Regulation of single-phase full-wave center-tap rectifier****Peak Inverse Voltage of single-phase center-tap full-wave rectifier****Peak Current of single-phase center-tap full-wave rectifier****Transformer Utilization Factor (TUF) of single-phase center-tap full-wave rectifier****Advantage of center-tap Full-wave rectifier**

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**c.) Full-wave bridge rectifier**

**Average and RMS Value of bridge rectifier****Efficiency of bridge rectifier****Ripple Factor of bridge rectifier****Peak Inverse Voltage (PIV) of bridge rectifier****Peak Current of bridge rectifier****Transformer Utilization Factor of bridge rectifier****Advantage of bridge rectifier****Disadvantage of bridge rectifier**

**d.) Three-phase half-wave rectifier**

**e.) Three-phase full-wave rectifier**

**f.) Six-phase half-wave rectifier**

**g.) Three-phase bridge circuit**