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Electronics Glossery

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z


balance

The relative volume level between two channels, usually the left and right channels. May also refer to the relative volume between front and rear channels of an audio system. To make the same or equal
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Source:http://www.the12volt.com/glossary/glossary.asp

balanced bridge

Condition that occurs when a bridge circuit is adjusted to produce a zero output.
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Source:http://www.twysted-pair.com/dictionary.htm

band-pass filter

A tuned circuit designed to pass a band of frequencies between a lower cut-off frequency (f1) and a higher cut-off frequency (f2). Frequencies above and below the pass band are heavily attenuated.
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Source:http://www.twysted-pair.com/dictionary.htm

- band-stop filter

A tuned circuit designed to stop frequencies between a lower cut-off frequency (f1) and a higher cut-off frequency (f2) of the amplifier while passing all other frequencies.
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Source:http://www.twysted-pair.com/dictionary.htm

Bandpass

A two-part filter that cuts both high and low frequencies allowing the band of frequencies between these two points to pass.
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Source:http://www.the12volt.com/glossary/glossary.asp

Bandwidth

Audio: The range of frequency response between lower and upper frequencies points which audio signals pass through an electrical device or conductor where the signal has rolled off by three decibels.
General Electronics: Width of the band of frequencies between the half power points.
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Source:http://www.the12volt.com/glossary/glossary.asp
http://www.twysted-pair.com/dictionary.htm

barrier potential

The natural difference of potential that exists across a forward biased pn junction.
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Source:http://www.twysted-pair.com/dictionary.htm

base

The region that lies betwen the emitter and collector of a bipolar junction transistor (BJT).
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Source:http://www.twysted-pair.com/dictionary.htm

base biasing

A method of biasing a BJT in which the bias voltage is supplied to the base by means of a resistor.
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Source:http://www.twysted-pair.com/dictionary.htm

Basket

The rigid frame of a speaker that supports all of it's components.
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Source:http://www.the12volt.com/glossary/glossary.asp

Bass

The low audio frequency range typically below 500 Hz (hertz).
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Source:http://www.the12volt.com/glossary/glossary.asp

battery

A DC voltage source containing two or more cells that convert chemical energy to electrical energy.
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Source:http://www.twysted-pair.com/dictionary.htm

baud

A unit of signaling speed equal to the number of signal events per second. Not necessarily the same as bits per second.
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Source:http://www.twysted-pair.com/dictionary.htm





Beta (b)

The ratio of collector current to base current in a bipolar junction transistor (BJT).
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Source:http://www.twysted-pair.com/dictionary.htm





Bi-Amplification

The use of two amplifiers, one for the amplification of lower (bass) frequencies , and the other for higher (midrange and treble) frequencies. The audio signal from the head unit or pre-amplifier is passed through an electronic crossover and divided into two separated signals. These signals are sent to the respective amplifiers and their outputs are sent to the respective speakers.(bass to woofers, midrange and treble to mids and tweeters through the use of passive crossovers) Tri-Amp is the use of three amplifiers in the same manner with the audio signal divided into three separate bands of frequency by the electronic crossover and so on.
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Source:http://www.the12volt.com/glossary/glossary.asp

Bias

General elctronics A DC voltage applied to a device to control its operation.
Audio: A necessary high frequency current applied to the record head along with the audio signal to prevent distortion and increase sensitivity during recording.
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Source:http://www.the12volt.com/glossary/glossary.asp
Source:http://www.twysted-pair.com/dictionary.htm

binary

A number system having only two symbols, 0 and 1. A base 2 number system.
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Source:http://www.twysted-pair.com/dictionary.htm

Binary Digit (BIT)

The smallest unit of data in a digital signal represented by either a one or zero.
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Source:http://www.the12volt.com/glossary/glossary.asp

bipolar junction transistor -(BJT)

A three terminal device in which emitter to collector current is controlled by base current.
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Source:http://www.twysted-pair.com/dictionary.htm

bistable multivibrator

A multivibrator with two stable states. An external signal is required to change the output from one state to the other. Also called a latch.
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Source:http://www.twysted-pair.com/dictionary.htm




bleeder current

A current drawn continously from a souce. Bleeder current is used to stabilize the output voltage of a source.
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Source:http://www.twysted-pair.com/dictionary.htm




bode plot

A graph of gain versus frequency.
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Source:http://www.twysted-pair.com/dictionary.htm

Boom, Boomy

Excessive bass response or peak in bass response of a recording, playback, or sound system. Dominant in the low frequency range. Without complimentary levels of frequencies other than bass.
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Source:http://www.the12volt.com/glossary/glossary.asp

Boost

To Increase.
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Source:http://www.the12volt.com/glossary/glossary.asp

Bottom End

Bass response; referring to the sound qualities of the lowest frequency ranges of a speaker or audio system.
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Source:http://www.the12volt.com/glossary/glossary.asp




branch current

The portion of total current flowing in one path of a parallel circuit.
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Source:http://www.twysted-pair.com/dictionary.htm

breakdown voltage

Voltage at which the breakdown of a dialectric or insulator occurs.
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Source:http://www.twysted-pair.com/dictionary.htm

breakover voltage

Minimum voltage required to cause a diac to break down and conduct.
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Source:http://www.twysted-pair.com/dictionary.htm

bridge rectifier

A circuit using four diodes to provide full wave rectification. Converts an AC voltage to a pulsating DC voltage.
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Source:http://www.twysted-pair.com/dictionary.htm

Bridging

Combining two outputs of an amplifier to use as one, usually to a woofer. The provides an increase in power output (wattage) necessary to reproduce lower frequencies at higher volume levels.
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Source:http://www.the12volt.com/glossary/glossary.asp

Brown and Sharp Gauge(B & S Gauge)

A standard of the dimensional characteristics of wire used to conduct electrical current or signals. B & S Gauge is identical to the American Wire Gauge (AWG).
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Source:http://www.the12volt.com/glossary/glossary.asp




Buffer

Audio: Commonly found in Mini Disc (MD) and Compact Disc (CD) players, this device protects against vibrations by storing the audio data for uninterrupted playback. Data is available from the buffer when it can not be read from the disc so long as the interruption of reading the disc does not exceed the playback time of the data stored in the buffer.
General Electronics: An amplifier used to isolate a load from a source.
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Source:http://www.the12volt.com/glossary/glossary.asp
http://www.twysted-pair.com/dictionary.htm

bulk resistance

The natural resistance of a "P" type or "N" type semiconductor material.
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Source:http://www.twysted-pair.com/dictionary.htm

butterworth filter

A type of active filter characterized by a constant gain (flat response) across the midband of the circuit and a 20 dB per decade roll-off rate for each pole contained in the circuit.
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Source:http://www.twysted-pair.com/dictionary.htm

Byte

Eight bits. It takes one byte to represent one letter of the alphabet.
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Source:http://www.the12volt.com/glossary/glossary.asp



BW

Abbreviation for bandwidth.
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Source:http://www.twysted-pair.com/dictionary.htm



bypass capacitor

A capacitor used to provide an AC ground at some point in a circuit.
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Source:http://www.twysted-pair.com/dictionary.htm

byte

Group of eight binary digits or bits.
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Source:http://www.twysted-pair.com/dictionary.htm


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Created: __/__/03
Updated: __/__/__
Checked: __/__/__

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