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Uses of Rectifier

Uses of Rectifier

The primary function of a rectifier is to convert AC current to DC current. This function is performed by the rectifier, which is made up of semiconductor diodes. Rectifiers are divided into three categories: half-wave, full-wave, and full-wave bridge. Let us quickly review what a rectifier is before moving on to the applications of the rectifier.

Define Rectifier

A rectifier is a device that converts alternating current (AC) into direct current (DC). A rectifier is similar to a one-way valve in that it only enables current to flow in one direction. Rectification is the process of converting AC current to DC current. Solid-state diodes, mercury-arc valves, vacuum tube diodes, silicon-controlled rectifiers, and several silicon-based semiconductor switches are examples of rectifiers.

Rectifier Uses and Applications

The rectifier's principal function is to convert AC power to DC electricity. Rectifiers are found in practically all electronic equipment's power supplies. The rectifier is generally connected in series with the transformer, a smoothing filter, and potentially a voltage regulator in power supply. A few rectifier uses are discussed below:

  • Appliances are powered by rectifiers
    As we all know, all electrical equipment requires a DC power supply to operate. The use of a rectifier in the power supply aids in the conversion of AC to DC power. Bridge rectifiers, which can convert high AC voltage to low DC voltage, are commonly employed in large

  • These are used in conjunction with transformers
    By employing step-down or step-up transformers, we may produce the desired dc voltage with the help of a half-wave rectifier. Even the motor and led, which operate on DC voltage, are powered by full-wave rectifiers.

  • When soldering, a rectifier is used
    A half-wave rectifier is used in circuits that require a soldering iron, as well as in mosquito repellent to drive the lead for the fumes. Bridge rectifier circuits are used in electric welding to provide a constant and polarised DC voltage.

  • It can also be heard on AM radio
    Because the output of an AM radio is an audio signal, a half-wave rectifier is used as a detector. Because the current is less intense, it is of less service to the more sophisticated rectifier.

  • Rectifier's Functions in Circuits
    In firing circuits and pulse producing circuits, a half-wave rectifier is used.

  • It is employed in modulation
    A half-wave rectifier is used to demodulate the amplitude of a modulated signal. A full-wave bridge rectifier is used in a radio signal to measure the amplitude of a modulating signal.

  • It's a component of a voltage multiplier
    A half-wave rectifier is used to create the voltage multiplier.

FAQs – Frequently Asked Questions

Q1. What is a rectifier?
A: A rectifier is a device that converts AC to DC using one or more diodes.

Q2. State three advantages of a bridge rectifier
A: The three benefits of a bridge rectifier are as follows:

  • The bridge rectifier's rectification efficiency is double that of a half-wave rectifier.
  • Because the ripple voltage is minimal, a simple filtering circuit is used in the case of a bridge rectifier.
  • It has a high TUF (Transformer Utilization Factor).

Q3. What is a bridge rectifier's alternative?
A: A full-wave rectifier is an alternative to the bridge rectifier.

Q4. What are the three different types of rectifiers?
A: Half-wave rectifiers, full-wave center-tapped rectifiers, and full-wave bridge rectifiers are the three fundamental types of rectifiers.

Q5. What is a rectifier's efficiency?
A: The ratio of DC output power to applied AC input power is the efficiency of a rectifier.
It has a high TUF (Transformer Utilization Factor).

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