| 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 |
- B
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Flux density
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- Balanced bridge
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Condition that occurs when a bridge circuit is adjusted to produce a zero output.
- Band-pass filter
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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.
- Band-stop filter
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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.
- Bandwidth
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Width of the band of frequencies between the half power points.
- Barrier potential
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The natural difference of potential that exists across a forward biased pn junction.
- Base
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The region that lies between the emitter and collector of a bipolar junction transistor (BJT).
- Base biasing
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A method of biasing a BJT in which the bias voltage is supplied to the base by means of a resistor.
- Battery
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A DC voltage source containing two or more cells that convert chemical energy to electrical energy.
- Baud
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A unit of signaling speed equal to the number of signal events per second. Not necessarily the same as bits per second.
- BCD
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Binary coded decimal
- Beta
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(b) The ratio of collector current to base current in a bipolar junction transistor (BJT).
- Bfo
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Beat frequency oscillator
- Bias
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A DC voltage applied to a device to control its operation.
- Binary
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A number system having only two symbols, 0 and 1. A base 2 number system.
- Bipolar junction transistor
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(BJT), A three terminal device in which emitter to collector current is controlled by base current.
- Bistable multivibrator
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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.
- BJT
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Bipolar junction transistor
- Bleeder current
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A current drawn continuously from a source. Bleeder current is used to stabilize the output voltage of a source.
- Bode plot
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A graph of gain versus frequency.
- branch current
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The portion of total current flowing in one path of a parallel circuit.
- Breakdown voltage
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Voltage at which the breakdown of a dielectric or insulator occurs.
- Breakover voltage
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Minimum voltage required to cause a diac to break down and conduct.
- Bridge rectifier
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A circuit using four diodes to provide full wave rectification. Converts an AC voltage to a pulsating DC voltage.
- Buffer
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An amplifier used to isolate a load from a source.
- Bulk resistance
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The natural resistance of a "P" type or "N" type semiconductor material.
- Butterworth filter
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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.
- BW
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Abbreviation for bandwidth.
- Bypass capacitor
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A capacitor used to provide an AC ground at some point in a circuit.
- Byte
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Group of eight binary digits or bits.