# How is a diode used as a rectifier?

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## Why can the diode be used for rectification?

One of the most common uses for the diode is to rectify the AC voltage into a DC power supply. Since, a diode can only conduct current one way, when the input signal goes negative, there will be no current. This is called a half-wave rectifier.

## How does a diode act as a rectifier explain with the help of a diagram?

A current IL passes through the load resistance RL in the direction shown in the diagram. During the next half cycle when the p-region is negative the diode is reverse biased and the forward current drops to zero. Thus the diode conducts only during an half of the input cycle and thus acts as a half wave rectifier.

## What can be used as a rectifier?

A rectifier is a device that converts an oscillating two-directional alternating current (AC) into a single-directional direct current (DC). Rectifiers can take a wide variety of physical forms, from vacuum tube diodes and crystal radio receivers to modern silicon-based designs.

## Why a pn diode acts as a rectifier?

Hint: A p-n junction diode can work as an excellent rectifier since it offers a low resistance for the current to flow when it is forward biased; but a very high resistance when reverse biased. Thus, it allows current through it only in one direction and acts as a rectifier.

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## When a diode is used as a rectifier The most important consideration is?

The peak inverse voltage is either the specified maximum voltage that a diode rectifier can block or, alternatively, the maximum that a rectifier needs to block in a given application. When a crystal diode is used as a rectifier, the most important consideration is a PIV rating.

## How is a diode used as a half wave rectifier?

Since diodes restrict the flow of current to one direction, they can be used to convert an AC power supply, which switches polarity from + to – many times a second, into a straight DC supply. … Called a half-wave rectifier, this circuit takes an AC signal in and chops off anything that falls below 0 Volts.

## What is the most widely used rectifier?

A widely used rectifier is the three phase, 6 pulse, diode bridge rectifier. It’s main use is low voltage motor drive front end. The single phase uncontrolled full wave bridge rectifier circuit configuration (four diodes arranged in a bridge circuit) is the most widely used rectifier configuration today.