Power Supply: Definition, Functions & Components

Definition: A power supply is an electronic circuit designed to provide various ac and dc voltages for equipment operation. Proper operation of electronic equipment requires a number of source voltages. Low dc voltages are needed to operate ICs and transistors. High voltages are needed to operate CRTs and other devices. …

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Semiconductor Basics Tutorial

what-is-a-semiconductor

Semiconductor Definition: Semiconductors are elements which have a conductivity between conductors and insulators. Semiconductors can be pure materials, such as silicon or germanium, or a combination of different materials such as gallium arsenide or cadmium selenide. In a doping technique, impurities are added to pure semiconductors making changes in the …

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Low Pass & High Pass Filter Working Principle

low and high pass filters working

Inductance and capacitance are quite useful in electronic circuitry. One example of this usefulness is the filter. A filter is a circuit that separates specific frequencies. There are many filter designs. For example, filters can be designed to pass low frequencies and reject high frequencies; to reject low frequencies and …

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RLC Resonance, Acceptor, Tank & Rejector Circuit

RLC Resonance, Acceptor, Tank & Rejector Circuit | Q of Tuned Circuits

RLC networks are ac circuits that have resistors, capacitors, and inductors placed in the circuit to pass, reject, or control current. A circuit containing all three factors—resistance, inductance, and capacitance—is called an RLC circuit. The resulting impedance in an RLC circuit is equal to the vector addition of R in …

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AC Capacitor Circuits

RC circuit_example

When an ac voltage is applied to a capacitor, the plates charge and discharge repeatedly. During the first half-cycle, the plates charge up (one plate negative and one plate positive) and discharge back to zero. During the next half-cycle, the plates charge to the opposite polarities of the first half …

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RC Circuit: Transient Response & Time Constant

RC Circuit: Transient Response

Definition: The response of current and voltage in a circuit immediately after a change in applied voltage is called the transient response. Refer to Figure 1. A capacitor and a resistor are connected in series across a voltage source. A circuit that contains resistance and capacitance is called an RC …

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AC Inductor Circuits

inductance in ac circuit

In an ac circuit, the applied voltage constantly varies and reverses polarity. Any inductance in the circuit will generate a counter emf, which will oppose the source voltage. This event can be observed by setting up the experiment. Connect a light to a six- volt dc source. Note its brilliance. …

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Secondary Cell: Definition & Types

Secondary Cell: Definition & Types

Definition: A secondary cell can be recharged or restored. The chemical reaction that occurs on discharge may be reversed by forcing a current through the battery in the opposite direction. This charging current must be supplied from another source, which can be a generator or a power supply.  Figure 1 …

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Why Everyone Needs To Install Car GPS Tracker

Global GPS tracking Solutions

GPS stands for Global Positioning System and usually refers to a navigational system that can help you find your way to new locations. Think of Google Maps. Through the internet, it can pinpoint your location and look for a trail you can take to your destination. But this not what …

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Primary Cell

primary cell types

Definition: A primary cell is a cell in which the chemical action cannot be reversed. A primary cell cannot be recharged. One might think that the chemical action of the zinc-carbon primary cell would continue to produce a voltage as long as the active ingredients of the cell were present. …

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American Wire Gauge (AWG) System

American Wire Gauge | Chart | Sizes | Circular Mil Definition

Many conductors are much less than an inch in diameter. To simplify area calculations for such conductors, the foot-pound system uses an area unit, called a circular mil, based on a mil, or one-thousandth of an inch (see Figure 1). Definition: One circular mil (CM) is the area of a …

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