Application Of Junction Diode As A Rectifier
Chapter Name : Semiconductor Electronics: Materials, Devices And Simple Circuits |
Sub Topic Code : 101_12_14_07_01 |
Topic Name : Application Of Junction Diode As A Rectifier |
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Sub Topic Name : Junction Diode As A Rectifier |
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Introduction
Rectifier is a device which is used for converting alternating current/voltage into direct current /voltage.
Pre-Requisites:
Rectifier
Activity:
Silicon (Si) is the most widely used material in semiconductor devices.
Real Life Question:
What is Rectifier?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Rectifier | A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| microprocessors | All transistor types can be used as the building blocks of logic gates, which are fundamental in the design of digital circuits. Transistors act as on-off switches; in the MOSFET, for instance, the voltage applied to the gate determines whether the switch is on or off. |
Real life uses :
DC power supplies and high-voltage direct current power transmission systems
Places to visit :
Digital circuits.
Practical examples around us
| Examples | Explainations |
|---|---|
| DC power supplies | Device that supplies electric power to an electrical load. |
What you learn in Theory:
A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction.
What you learn in Practice:
Early radio receivers, called crystal radios, used a "cat's whisker" of fine wire pressing on a crystal of galena (lead sulfide) to serve as a point-contact rectifier or "crystal detector".