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Dictionary of Electronics
"balanced" to "byte" |
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- balanced bridge
Condition that occurs when a bridge circuit is adjusted to produce a zero output.
- 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.
- 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.
- bandwidth
- Width of the band of frequencies between the half power points.
- barrier potential
- The natural difference of potential that exists across a forward biased pn junction.
- base
- The region that lies betwen the emitter and collector of a bipolar junction transistor (BJT).
- base biasing
- A method of biasing a BJT in which the bias voltage is supplied to the base by means of a resistor.
- battery
- A DC voltage source containing two or more cells that convert chemical enwergy to electrical energy.
- baud
- A unit of signaling speed equal to the number of signal events per second. Not necessarily the same as bits per second.
- beta
- (b) The ratio of collector current to base current in a bipolar junction transistor (BJT).
- bias
- A DC voltage applied to a device to control its operation.
- binary
- A number system having only two symbols, 0 and 1. A base 2 number system.
- bipolar junction transistor
- (BJT), A three terminal device in which emitter to collector current is controlled by base current.
- 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.
- bleeder current
- A current drawn continously from a souce. Bleeder current is used to stabilize the output voltage of a source.
- bode plot
- A graph of gain versus frequency.
- branch current
- The portion of total current flowing in one path of a parallel circuit.
- breakdown voltage
- Voltage at which the breakdown of a dialectric or insulator occurs.
- breakover voltage
- Minimum voltage required to cause a diac to break down and conduct.
- bridge rectifier
- A circuit using four diodes to provide full wave rectification. Converts an AC voltage to a pulsating DC voltage.
- buffer
- An amplifier used to isolate a load from a source.
- bulk resistance
- The natural resistance of a "P" type or "N" type semiconductor material.
- 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.
- BW
- Abbreviation for bandwidth.
- bypass capacitor
- A capacitor used to provide an AC ground at some point in a circuit.
- byte
- Group of eight binary digits or bits.
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