Electrical components Electrical components In electronics, an active component is one that has gain or depends on the direction of the current. In practice, this means any component that is not a resistor, capacitor or inductor (which are termed passive components). Examples of active components are transistors, thyristors, diodes and valves. ...more on Wikipedia about "Active component"
Most simply, an antenna or aerial is an electronic component designed to transmit or receive radio waves. The words "antenna" and "aerial" are used throughout this article with precisely the same meaning. In the context of engineering and physics, the plural of antenna is "antennas", and it has been this way since about 1950 (or sooner), when a cornerstone textbook in this field, Antennas, was published by John D. Kraus of the Ohio State University. Besides the title, Dr. Kraus noted this in a footnote on the first page of his book. Insects may have "antennae" but not in technical contexts. ...more on Wikipedia about "Antenna (radio)"
In electrical engineering, an armature is one of the two principal components of an electro-mechanical machine--a motor or generator. The other is the field winding or field magnets. The role of the "field" component is simply to create a magnetic field (magnetic flux) for the armature to interact with, so this component can comprise either permanent magnets, or electromagnets formed by a conducting coil. The armature, in contrast, must carry current or EMF (usually both), so it is always a conductor or a conductive coil, oriented normal to both the field and to the direction of motion, torque (rotating machine), or force (linear machine). The armature's role is two-fold: (a) to carry current crossing the field, thus creating shaft torque (in a rotating machine) or force (in a linear machine), and (b) to generate an electromotive force ("EMF"). In the armature, an electromotive force ("EMF") is created by the relative motion of the armature and the field. When the machine is acting as a motor, this EMF opposes the armature current, and the armature converts electrical power to mechanical torque (and power, unless the machine is stalled) and transfers it to the load via the shaft. When the machine is acting as a generator, the armature EMF drives the armature current, and shaft mechanical power is converted to electrical power and transferred to the load. (In an induction generator, these distinctions are blurred, since the generated power is drawn from the stator, which would normally be considered the field.) ...more on Wikipedia about "Armature (electrical engineering)"
Aux-send is a feature of a professional multi-track sound mixing (or recording) console which provides an effects loop, allowing the insertion and level control of outboard audio processing to be added to an audio source or channel within the mixing console. Typically found in recording studio, concert and broadcast settings. ...more on Wikipedia about "Aux-send"
A button is a simple physical mechanism for controlling some aspect of a machine. Buttons are typically made out of hard material, usually plastic or metal. This piece of plastic is usually shaped to accommodate the human finger or hand, so as to be easily depressed or pushed. When the button is pushed, a (usually electrical) event takes place; for example, an electrical circuit might be completed. ...more on Wikipedia about "Button (control)"
A cam timer is an electromechanical system for controlling a sequence of events automatically. ...more on Wikipedia about "Cam timer"
A cavity magnetron is a high-powered vacuum tube that generates coherent microwaves. They are commonly found in the microwave oven, as well as various radar applications. ...more on Wikipedia about "Cavity magnetron" My way is shortopedia shortopedia
A commutator is an electrical switch that periodically reverses the current in an electric motor or electrical generator. Commutators enable motors to run on, and a generator to produce, usable energy. Pending the configuration of commutators, direct current (or continous current) can transformed from an alternating current source. ...more on Wikipedia about "Commutator (electric)"
A component speaker is a car audio speaker matched for optimal sound quality. Typically a pair of tweeters and mid- bass drivers are matched with a crossover to limit the frequency range each speaker must accurately reproduce. Component speakers drivers are physicaly seperated so the tweeter, which is very directional, can be placed in a optimal position, usualy on the dash facing the listener, while the larger mid-bass driver can be placed where there is room, often in the lower front of the car doors. Component speaker pairs are offered by all of the high-end audio manufacturers. ...more on Wikipedia about "Component speaker"
The term condenser has the following meanings: ...more on Wikipedia about "Condenser"
Digitally-controlled potentiometers can be used in analogue signal processing circuits to replace potentiometers. They allow small adjustments to be made to the circuit by software, instead of the old technique of using a screwdriver. Because this type of control is updated only infrequently, it often has a slow serial interface. Some types have non-volatile memory to enable them to remember their last settings when the power is switched off. ...more on Wikipedia about "Digitally-controlled potentiometer"
Discrete components is a broad term in electronic circuit design to encompass parts that are not actively part of the circuit at hand, but play a significant role in its operation. The term may often refer to a collection of passive components as opposed to a single integrated circuit, although transistors and diodes may be included in the grouping as well. ...more on Wikipedia about "Discrete components"
A discrete device is an electronic component with just one circuit element. The term is used to distinguish the component from integrated circuits and hybrid circuits, which are built from several circuit elements in one package. It typically refers to semiconductor devices. Examples are: ...more on Wikipedia about "Discrete device"
A dynode is one of a series of electrodes within a photomultiplier tube. Each dynode is more positively charged than its predecessor. Secondary emission occurs at the surface of each dynode. Such an arrangement is able to amplify the tiny current emitted by the photocathode by typically one million. ...more on Wikipedia about "Dynode"
An electrical bus (sometimes spelled buss) is a physical electrical interface where many devices share the same electric connection. This allows signals to be transferred between devices (allowing information or power to be shared). A bus often takes the form of an array of wires that terminate at a connector which allows a device to be plugged onto the bus. ...more on Wikipedia about "Electrical bus"
An electrical component is any component in the generation, transmission, distribution, or consumption of electric power. Some examples of these components would be: relays, contactors, timers, circuit breakers, fuses, and motor starters. ...more on Wikipedia about "Electrical component"
Electronic color codes are used to indicate the values or ratings of electronic components, near-universally for resistors, but also for capacitors, inductors, and others. Color codes have also been used on signaling wire and cable as well, particularly for telephone and digital bus cables. The color codes used in the resistor example below are standard, but the tolerance and higher multiplier values are for resistors only. ...more on Wikipedia about "Electronic color code"
An electronic component is a basic electronic building block packaged in a discrete form with two or more connecting leads or metallic pads. The components are intended to be connected together, usually by soldering to a printed circuit board, to create an electronic circuit with a particular function (for example an amplifier, radio receiver, or oscillator). Components may be packaged singly ( resistor, capacitor, transistor, diode etc) or in more or less complex groups as integrated circuits ( operational amplifier, resistor array, logic gate etc). ...more on Wikipedia about "Electronic component"
Gas filled tubes are arrangements of electrodes in a gas within an insulating, temperature-resistant envelope. Although the envelope was classically glass, power tubes often use ceramics, and military tubes often use glass-lined metal. ...more on Wikipedia about "Gas filled tube"
A Hall effect sensor is an electronic device that varies its output voltage in response to changes in magnetic field density. Hall sensors are used for proximity switching, positioning, speed detection and current sensing applications. ...more on Wikipedia about "Hall effect sensor"
Heat shrink tubing is used to insulate wires, connections and terminals in Electrical Engineering. Manufactured from a thermoplastic material such as polyolefin, fluoropolymer(such as PVC, FEP, PTFE or Kynar), neoprene, silicon elastomer or Viton. It is placed over the connection to be protected and then heated with a hot air gun or similar tool (in desperate times, poor technicians have been known to use lighters). The heat causes the tubing to contract as far as one half or one third of its original diameter, providing a snug fit over irregularly shaped joints. This provides good electrical insulation, protection from dust, solvents and other foreign materials, and strain relief. ...more on Wikipedia about "Heat-shrink tubing"
A Linear taper is a type of potentiometer that uses a strip of resistive material whose density is constant all the way around. The resistance between a center terminal and either end terminal changes at a steady rate as a control shaft is turned. Suppose a linear taper potentiometer has a value of zero to 280 Ω. In most units a shaft rotates about 280 degrees, or a little more than three-quarters of a circle. Then the resistance between the center and one end terminal will increase right along with the number of degrees that the shaft is turned. The resistance between the center and the other end terminal will be equal to 280 minus the number of degrees the shaft is turned. Engineers say that the resistance is a linear function of the shaft position. Linear taper potentiometers are commonly used in electronic test instruments and in various consumer electronic devices. ...more on Wikipedia about "Linear taper"
(List of sensors) * HSDL-9100-021 proximity sensor - For Cellular phones, copiers and notebooks by Agilent. ...more on Wikipedia about "List of sensors"
Litz wire is a special type of wire used in electronics. It consists of many thin wires, individually coated with an insulating film and braided, thus increasing the surface area of the conductor and thereby reducing the skin effect and associated power losses when used with high-frequency applications. The ratio of impedance to resistance is increased, relative to a solid conductor, resulting in a higher Q factor at these frequencies. The word originated from litzendraht, German for woven wire. ...more on Wikipedia about "Litz wire"
A Möbius resistor is an electrical component made up of two conductive surfaces separated by a dielectric material, twisted 180° and connected to form a Möbius strip. It provides a resistor which has no residual self-inductance. ...more on Wikipedia about "Möbius resistor"
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