Uses of Rectifier: Definition, Types of Rectifiers, Applications

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Tenability seems to be the latest quotation nowadays and one vital component for sustainability of many metals structures is cathodic protection that is CP. And what better way one can find to protect infrastructure (metal) than to abate corrosion. The most common stirring current voltage sources are Rectifiers which break down. Properly maintained rectifiers provide continuous CP, which reduce not only cost but also time of labour/ technician. This particular article discusses about the definition, facts and uses of rectifiers.

Table of Content

What is Rectifier?
Types of Rectifiers
Applications and Uses of Rectifier
Things to Remember
Sample Questions

Key Terms: Rectifier, Basic principle of a rectifier, Alternating current, Direct current, Rectification, Electrical current, Semiconductor, Electrical component, AC voltage, DC voltage

What is Rectifier?

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Rectifier can be defined simply as an electrical component that converts alternating current (AC) to direct current (DC). It can be compared to a one-way valve which allows an electrical current to flow in only single direction. And this process of conversion of AC Current into DC Current is called as rectification. Further, rectifier can have physical form in Solid-state diodes, Vacuum tube diodes, Mercury-arc valves, Silicon-controlled rectifiers, silicon-based semiconductor switches and many others.

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Types of Rectifiers

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There are various types of rectifiers as discussed below:

Types of Rectifiers

Types of Rectifiers

Applications and Uses of Rectifier

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Well as we know now that the basic principle of a rectifier is to convert AC current into DC current. Hence rectifiers are widely used in the power distribution of almost all electronic equipment’s. As in power supplies, a rectifier is placed in series followed by the transformer, a smoothing filter, and possibly a voltage regulator.

Below are discussed a few applications and uses of rectifier:

RECTIFIER IN POWERING APPLIANCES:

As you are aware of the fact that all electrical devices use DC power for constant functioning and with the help of rectifier in the power supply it helps in easy conversion of AC into DC power supply.
For conversion of high AC voltage to low DC voltage, bridge rectifiers are vastly taken into use.

RECTIFIER IN TRANFORMERS:

The use of a half-wave rectifier can be considered for achieving desire DC voltage by using step up or step-down transformers.
Full-wave rectifier are also used in powering up the motor and led, which works on DC voltage.

RECTIFIER IN SOLDERING:

In soldering iron types of circuit half-wave rectifier is used.
It is also used in mosquito repellent for driving the lead for fumes.
In electric welding, for balanced and polarized DC Voltage Bridge rectifiers are considered.

RECTIFIER IN AM RADIO:

In AM Radio as well a half wave rectifier is used as a detector as the output consists of an audio signal.
The intensity of current is less, it is of very little use to the more complex rectifier.

RECTIFIER IN CIRCUITS:

In firing circuits and pulse generating circuits’ use of half wave rectifier is considered.

RECTIFIER FOR MODULATION:

A half wave rectifier is used for demodulating the amplitude of a modulated signal.
In case of radio signal, a full-wave bridge rectifier is used for detection of the amplitude of a modulating signal.

RECTIFIER IN VOLTAGE MULTIPLIER:

For the purpose of the voltage multiplier, a half-wave rectifier is used.

Things to Remember

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Following are some points which should be cleared by the readers:

The fact that rectifier is used in electronic equipment you should be careful enough to familiarize yourself with any hazard point within the rectifier by reviewing physical layout.
Do not install or energize a rectifier if in case it is damaged.
Inspect and tighten any connection if found loose.
Do not start the rectifier at any tap or control setting apart from minimum.
Do not overload a rectifier in any situation.
Do not mount any additional equipment inside a rectifier without prior approval from manufacturer.
Installation of rectifier should be proper so that it does not obstruct any vent which is required for cooling.

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Sample Questions

Ques: What is a Rectifier? (2 marks)

Ans: A rectifier can be defined as an electrical component that converts alternating current (AC) to direct current (DC). And the process of conversion of AC Current into DC Current is called as rectification. A rectifier can be in the form of Solid-state diodes, Vacuum tube diodes, Mercury-arc valves, etc. also, a rectifier is in single phase and three phase.

Ques: Give the names of 3 basic types of rectifiers? (2 marks)

Ans: There are three basic types of rectifiers, and they are:

Half-wave rectifier: It is a type of rectifier which allows only one-half cycles of AC voltage to pass and blocking the other half cycle.
Full-wave centre-tapped rectifier: It uses a centre tapped transformers and two diodes to convert AC into DC voltage.
Full-wave bridge rectifier: This makes use of both half cycles to convert AC into DC voltage.

Ques: What type of rectifier is used in Circuit, Modulation, and Voltage multiplier? (2 marks)

Ans: The rectifier used in Circuit, Modulation, and Voltage multiplier is a half wave rectifier. It allows only one-half cycles of AC voltage to pass and blocking the other half cycle

Ques: Note few points to be remembered while handling rectifier? (3 marks)

Ans: Few points to be remembered while handling rectifier are:

One should familiarize oneself before installing rectifier.
One should not energize or overload a rectifier.
Do not start a rectifier at any tap or control steins apart from minimum.
Do not mount any additional equipment inside a rectifier without prior approval of a manufacturer.

Ques: How rectifiers helps in sustainability? (2 marks)

Ans: Rectifiers act as a great tool that helps in mitigating and controlling corrosion. It is an effective tool in providing effective cathode protection. For long lasting output it requires minor repair and frequent maintenance and proper monitoring at times. And it can be used safely which helps ensure reliable and long-term rectifier operation.

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Uses of Rectifier: Definition, Types of Rectifiers, Applications

What is Rectifier?

Types of Rectifiers

Applications and Uses of Rectifier

Things to Remember

Sample Questions

CBSE CLASS XII Related Questions

1.
A tank is filled with a liquid to a height of \( 12.5 \, \text{m} \). The apparent depth of a needle lying at the bottom of the tank is measured to be \( 9.0 \, \text{m} \). Calculate the speed of light in the liquid.

2.
Two small identical metallic balls having charges \( q \) and \( -2q \) are kept far at a separation \( r \). They are brought in contact and then separated at distance \( \frac{r}{2} \). Compared to the initial force \( F \), they will now:

3.
The figure shows three point charges kept at the vertices of triangle ABC. The net electric field, due to this system of charges, at the midpoint M of base BC will be:

4.
Two thin lenses of focal length \( f_1 \) and \( f_2 \) are placed in contact with each other coaxially. Prove that the focal length \( f \) of the combination is given by \[ f = \frac{f_1 f_2}{f_1 + f_2}. \]

5.
Draw the number of scattered particles versus the scattering angle graph for scattering of alpha particles by a thin foil. Write two important conclusions that can be drawn from this plot.

6.
What is displacement current (\( i_d \))? Considering the case of charging of a capacitor, show that \( i_d = \varepsilon_0 \frac{d\Phi_E}{dt} \). What is the value of \( i_d \) for a conductor across which a constant voltage is applied?

Similar Physics Concepts

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Uses of Rectifier: Definition, Types of Rectifiers, Applications

What is Rectifier?

Types of Rectifiers

Applications and Uses of Rectifier

Things to Remember

Sample Questions

CBSE CLASS XII Related Questions

1.A tank is filled with a liquid to a height of \( 12.5 \, \text{m} \). The apparent depth of a needle lying at the bottom of the tank is measured to be \( 9.0 \, \text{m} \). Calculate the speed of light in the liquid.

2.Two small identical metallic balls having charges \( q \) and \( -2q \) are kept far at a separation \( r \). They are brought in contact and then separated at distance \( \frac{r}{2} \). Compared to the initial force \( F \), they will now:

3.The figure shows three point charges kept at the vertices of triangle ABC. The net electric field, due to this system of charges, at the midpoint M of base BC will be:

4.Two thin lenses of focal length \( f_1 \) and \( f_2 \) are placed in contact with each other coaxially. Prove that the focal length \( f \) of the combination is given by \[ f = \frac{f_1 f_2}{f_1 + f_2}. \]

5. Draw the number of scattered particles versus the scattering angle graph for scattering of alpha particles by a thin foil. Write two important conclusions that can be drawn from this plot.

6.What is displacement current (\( i_d \))? Considering the case of charging of a capacitor, show that \( i_d = \varepsilon_0 \frac{d\Phi_E}{dt} \). What is the value of \( i_d \) for a conductor across which a constant voltage is applied?

Similar Physics Concepts

Comments

SUBSCRIBE TO OUR NEWS LETTER

1.
A tank is filled with a liquid to a height of \( 12.5 \, \text{m} \). The apparent depth of a needle lying at the bottom of the tank is measured to be \( 9.0 \, \text{m} \). Calculate the speed of light in the liquid.

2.
Two small identical metallic balls having charges \( q \) and \( -2q \) are kept far at a separation \( r \). They are brought in contact and then separated at distance \( \frac{r}{2} \). Compared to the initial force \( F \), they will now:

3.
The figure shows three point charges kept at the vertices of triangle ABC. The net electric field, due to this system of charges, at the midpoint M of base BC will be:

4.
Two thin lenses of focal length \( f_1 \) and \( f_2 \) are placed in contact with each other coaxially. Prove that the focal length \( f \) of the combination is given by \[ f = \frac{f_1 f_2}{f_1 + f_2}. \]

5.
Draw the number of scattered particles versus the scattering angle graph for scattering of alpha particles by a thin foil. Write two important conclusions that can be drawn from this plot.

6.
What is displacement current (\( i_d \))? Considering the case of charging of a capacitor, show that \( i_d = \varepsilon_0 \frac{d\Phi_E}{dt} \). What is the value of \( i_d \) for a conductor across which a constant voltage is applied?