Microcontroller Components

Microcontroller Components

The microcontroller consists of thousands of digital circuits. These digital circuits are combined into areas that provide specific functions. Examine Figure 1. The simplified block diagram illustrates how the major sections inside the microcontroller work together to process the program instructions. The components of the microcontroller are used to save …

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Computer Design & Components | Data Storage Technologies

Computer Design & Components

This article covers the computer’s physical design and components, as well as technologies relating to data storage and file formats. By becoming familiar with the computer’s components and technologies, you will have laid a foundation on which to build further knowledge, either in your studies as a PC technician or …

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Fiber-Optic Cable Splicing

Small fiber-optic systems can include all the cabling necessary for the system made by the supplier prior to installation. Measurements are made, and all cable splices and connections are prepared prior to installation. This type of installation ensures that the highest quality control standards were applied to the preparation of …

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Fiber Optics | Basics | Construction | Advantages

Fiber Optic | Basics | Construction | Advantages

Fiber optics is a relatively recent development in the electronics world and has met widespread acceptance. Fiber optics, as it is used in the electronics field, is the controlled transmission of light as a signal. Look at Figure 1. The AM signal is converted to light and transmitted through the …

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Radio Waves Frequency and Wavelength

Radio Waves Frequency and Wavelength

Radio waves travel through space at a speed of light, which is 186,000 miles per second (300,000,000 meters per second). This is the velocity of a radio wave. Refer to Figure 1. The first radio wave has a frequency of one cycle per second (1 Hz). Starting at point A, …

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Oscillator | Definition | Types | Working

Oscillator | Definition | Types | Working | Circuit

Definition:  An oscillator is an electronic circuit that generates an ac signal at the desired frequency. An oscillator circuit is usually made up of a wave-producing circuit, amplifier, and feedback circuit. Variations in oscillator design are usually found in the feedback circuit. An oscillator is essential in many electronic applications. …

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What is Field Effect Transistor (FET) | Types

Field-Effect-Transistor-

Bipolar junction transistor (BJT) is a current-driven device. The input current to the device controls the output current. From the point of view of efficiency this type of transistor consumes a relatively high amount of energy due to high current, which converts to heat; thus, the efficiency is low. There are …

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Transistor as an Amplifier | Theory | Working Principle

Transistor as an Amplifier

A transistor can amplify the current or voltage of a signal. Amplifying current implies that the transistor output current is higher than its input current. Amplifying voltage implies that the voltage variation of the output is higher than the voltage variation of the input. When putting together, a number of …

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Transistor as a Switch Theory

Transistor as a Switch Theory

In the following circuit, the transistor acts as a switch, in the same way, that a relay works. The advantage of a transistor to a relay is that a transistor is lighter, has less noise (if any at all), has no moving components, it is faster, consumes less energy and …

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Switching and Amplification of Transistor

Switching and Amplification of Transistor

Two principal functions of a transistor are switching and amplification. In order to better understand what is meant by switching and amplification, we examine the following two examples. Switching Function Suppose that the current in a motor when working is 30 A. Dissimilar to a household device that you turn …

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Transistor | Basics | Modes of Operation | Biasing

Transistor | Basics | Modes of Operation | Biasing

A transistor is a semiconductor device with many applications. It is, in fact, the mother of all the other semiconductor electronic devices that we use or see around us today. Before transistors were invented, all electronic devices were made with vacuum tubes. Still one can find devices such as stereo …

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