RC and RL High Pass Filter

RC and RL High Pass Filters

As you know, a high pass filter is one that is designed to pass all frequencies above its cutoff frequency. High pass filters are formed by reversing the positions of the resistive and reactive components in the RC and RL low pass filters. In this section, we will discuss the …

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RC and RL Low Pass Filter

RC and RL Low Pass Filters

Simple RC and RL circuits can be used as low pass and high pass filters. In this section, we will look at RC and RL low pass filters. RC Low Pass Filters An RC circuit acts as a low pass filter when constructed as shown in Figure 1. In the …

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What is Frequency Response | Basics

What is Frequency Response | Basics

The reaction of a circuit has to change in frequency is referred to as its Frequency Response. For example, consider the parallel RLC circuit shown in Figure 1. If the operating frequency of the circuit increases, Here’s what happens: • The reactance of the inductor increases because of XL=2πfL. The …

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AC Waveform & AC Circuit Theory

AC Waveform & AC Circuit Theory

Generally, the term Alternating Current (AC) is used to describe any current that periodically changes direction. For example, take a look at the circuit current time relationship as shown in Figure 1. The horizontal axis of the graph is used to represent time (t). The vertical axis of the graph …

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Residential Electrical Circuit

Residential Electrical Circuit

In this article, we will look at how residential service entrances, switches, and receptacles are connected to form the basic residential electrical circuit. Conductor Most residential electrical circuits utilize one of the conductor combinations identified in Table 1. The conductor combinations listed are illustrated in Figure 1. Table 1: Conductor …

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Service Entrance and Service Drop

Service Entrance and Service Drop

Power enters the drop through the Service Entrance. The service entrance includes the Electric Meter that measures the amount of energy delivered to the home and the Service Panel that houses the circuit breakers or fuses. The service panel also distributes power to the various circuits in the house. Service …

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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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