A diode is a nonlinear circuit element. A diode is an electronic component that allows the current to flow in only one direction. It is a two-terminal semiconductor device. The rectifier is a device that is used to convert an AC voltage to a DC voltage. A diode is used as a switch, and a rectifier is used to to the conversion.
Differences between a Diode and a Rectifier
Let us look at more differences between them to understand them better.
| Diode | Rectifier |
|---|---|
| A diode conducts current when it is forward biased and blocks the flow of current when reverse biased. | A rectifier circuit consists of a diode, a step-down transformer and a filter circuit which collectively convert AC to DC. |
| The current-carrying capability is low in a diode. | The current-carrying capability is high in a rectifier. |
| Diodes are used in switches, clampers, clippers, etc. | Rectifiers are used in computers, batteries, etc. |
| Zener diode, photodiode, etc. are the different types of diodes. |
Single-phase rectifiers and three-phase rectifiers are the two types of rectifiers. Single-phase rectifiers are further divided into half-wave and full-wave rectifiers. |
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The difference between a diode and a rectifier should be understood clearly as it is an important and fundamental concept in electronics. To know more about Zener diode, photodiodes, etc., visit BYJU’S.
Frequently Asked Questions – FAQs
What is a diode?
What is a rectifier?
What is a half-wave rectifier?
Write some applications of a diode?
Following are the applications and uses of the diode:
- Diodes as a rectifier
- Diodes in the clipping circuit
- Diodes in clamping circuits
- Diodes in logical gates
- Diodes in reverse current protection
