Digital Circuits Applications

Digital Circuits Applications

Digital circuits are used for many reasons. For example, digital circuits convert ac sine waves to digital pulses, Figure 1. The ac signal is sampled. Various points are given digital values. These are later converted to a binary value. Figure 1. An ac signal being converted to digital pulses. Figure …

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How Does Vacuum Tube Work | Working Principle

How Does Vacuum Tube Work | Working Principle

The vacuum tube is a direct result of Thomas Edison’s experiment with the incandescent lamp. In this experiment, a metal plate was placed in the vacuum bulb containing the filament. A battery and series meter were connected between the light filament and the plate. At this point, Edison discovered that …

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Electric Motor | Protection | Failure | Troubleshooting

Electric Motor | Protection | Failure | Troubleshooting

Motor protection is important to any motor system. Most motor protection involves safety devices installed in the power lines that feed the motor. These devices protect more than just the motor. They protect the load and any other device connected in the motor system. Motor Installation and Protection Unless the …

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Transformer Applications and Uses

Transformer Applications and Uses

There are quite a number of special transformer applications. The following text details only a few of these applications. Autotransformers The common transformer consists of two windings: primary and secondary. While the two windings are not physically joined, a magnetic coupling exists between them. The electrical separation between the windings …

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DC Motor Theory

DC Motor Theory | Working Principle

One of the most important developments in the field of electricity is the electric motor. The electric motor converts electrical power into rotating mechanical power. Motors are used for such items as refrigeration and air conditioning, food mixers, vacuum cleaners, grinders, pumps, power bench saws, lathes, various wood and metal …

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Paralleling of Generators and Synchronization

Paralleling of Generators and Synchronization

The most common generator used in production of electrical power is the three-phase generator. It consists of a rotating magnetic field inside three sets of windings. See Figure 1, part A. The three sets of windings are referred to as the armature of the generator. The armature provides power for …

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DC Generator Types & Working

dc generator types and working

There are a number of different types of DC generators. Several of these generator types will be discussed briefly. Study their similarities as well as their differences. DC Generators can be distinguished by their method of excitation. Self-excited generators can be separated further into the categories of shunt, series, and …

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Electric Generator: Construction, Working and Losses

three phase electric generator construction and working

After studying this article, you will be able to: Explain how mechanical energy can produce electrical energy. State Lenz’s law. Discuss the difference between direct current and alternating current. Explain the construction and function of an Electric generator. In 1831, scientist Michael Faraday wondered: If electricity produces magnetism, can magnetism …

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Electrical Components and Symbols

Electrical Components and Symbols

Electrical and electronic systems contain circuits. Loosely defined, a Circuit is a group of components that performs a specific function. The function performed by a given circuit depends on the components used and how they are connected together. Nearly all circuits, no matter how complex, are made up of the …

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Use your iPhone as Your Home Stereo

Use your iPhone as Your Home Stereo

Your iPhone is great for music on the go, but you can use it as your home stereo as well. In this project, we’ll look at the five best ways of doing so: •   Using an iPhone speaker dock •   Connecting your iPhone directly to your stereo with a cable •   Connecting your …

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Load your iPhone with Content from Multiple Computers

Load your iPhone with Content from Multiple Computers

As you know, you can sync your iPhone in either of two ways: by using Apple’s iCloud online service, or by using your computer. iCloud is arguably the wave of the future, and it’s a great way to keep your music and other content synced among your iPhone, your computer, …

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Resistor Types and Color Code

Resistor Types and Color Code

One of the most common components encountered in the study of electronics is the resistor. The resistor is used to create desirable voltage drops and limit current values in electronic circuitry. Figure 1 shows several molded composition, fixed resistors. They are manufactured in many sizes and shapes. The schematic symbol …

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Electrical Circuit Devices

Electrical Circuit Devices

There are several common circuit devices that are present in most electrical and electronic circuits. They provide a means of controlling electron flow through the conductor paths and provide for safe operation of circuits. The three important items discussed here are switches, connectors, and circuit protection devices. Switches Switches are …

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Types of DC Motors

Types of DC Motors | Motor Starting Circuits

The different types of dc motors share the common names of dc generators such as shunt, series, and com- pound. The construction of the motors is similar to the generator counter parts. Shunt DC Motor In the shunt motor, the field windings shunt across, or in parallel to, the armature, …

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Setting up Your Apple Watch

Setting up Your Apple Watch

Why do you need an iPhone? The Apple Watch has many capabilities, but it can’t do everything on its own. It works in tandem with your iPhone to perform many functions. Having an iPhone is not optional; you must have one to use your Apple Watch. You need an iPhone …

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Getting to Know Apple Watch | How to Use the Apple Watch

Getting to Know Apple Watch | How to Use the Apple Watch

Anatomy of the Apple Watch The sleek, streamlined design of Apple Watch is designed for easy, intuitive use and has few external parts and pieces. Apple Watch Models Apple Watch comes in three different models, with options that can be mixed and matched to create 38 different variations. When it …

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Ideal Operational Amplifier

Ideal Operational Amplifier | Characteristics | Basics

Amplifiers are an essential aspect of many electronic applications. Perhaps the most familiar use of an amplifier is to convert the low-voltage, low-power signal from a digital audio player (e.g., iPhone or MP3 player) to a level suitable for driving a pair of earbuds or headphones, as shown in Figure 1. …

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