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Type of electronic amplifier using a bipolar junction transistor
decrease in IE through RL. It is also named common-emitter amplifier because the emitter of the transistor is common to both the input circuit and output circuit
Common_emitter
Transistor that uses both electrons and holes as charge carriers
Vin, base-to-emitter voltage (VBE) Vo, collector-to-emitter voltage (VCE) and the h-parameters are given by: hix = hie for the common-emitter configuration
Bipolar_junction_transistor
Type of transistor amplifier
Vin − Vout is applied to the base–emitter junction. The transistor continuously monitors Vdiff and adjusts its emitter voltage to equal Vin minus the mostly
Common_collector
Electrical circuit component which amplifies the difference of two analog signals
by the common-mode input voltages. The high-resistance emitter element does not play any role—it is shunted by the other low-resistance emitter follower
Differential_amplifier
Lists radionuclides of technological importance
lists some common beta-emitting radionuclides of technological importance, and their properties. Strontium-90 is a commonly used beta emitter used in industrial
Common_beta_emitters
Type of voltage amplifier
circuit the emitter terminal of the transistor serves as the input, the collector as the output, and the base is connected to ground, or "common", hence its
Common_base
Electronic device/component that increases the strength of a signal
between base and emitter, and the output signal taken between collector and emitter is inverted, relative to the input. The common collector arrangement
Amplifier
Integrated circuit logic family
buffering emitter follower (not shown on the picture); thus the emitter voltages are kept relatively steady. As a result, the common emitter resistor RE
Emitter-coupled_logic
Solid-state electrically operated switch also used as an amplifier
low-input-impedance device. Also, as the base–emitter voltage (VBE) is increased, the base–emitter current and hence the collector–emitter current (ICE) increase exponentially
Transistor
Electronic comparator circuit with hysteresis
the second common collector stage Q2 (an emitter follower) through the voltage divider R 1 , R 2 {\displaystyle R_{1}{,}R_{2}} . The emitter-coupled transistors
Schmitt_trigger
First successful type of transistor, developed in 1947
whereas α of bipolar junction transistor (BJT) cannot exceed 1. The common emitter current gain (or β) of a point-contact transistor does not usually exceed
Point-contact_transistor
Graphical analysis tool for electronic circuit engineering
circuit. The load line diagram at right is for a resistive load in a common emitter circuit. The load line shows how the collector load resistor (RL) constrains
Load_line_(electronics)
Semiconductor light source
RGB tri-color Tri-color LEDs contain three different LED emitters in one case. Each emitter is connected to a separate lead so they can be controlled
Light-emitting_diode
qualitatively directly from the Gummel plot: The common-emitter current gain, β {\displaystyle \beta } , and the common-base current gain, α {\displaystyle \alpha
Gummel_plot
Electronic amplifier circuit type
follower (RL ≈ 1 / gm ≈ Vov / (2ID); see common gate). Small RL reduces CM. The article on the common-emitter amplifier discusses other solutions to this
Common_source
Electronic amplifier circuit type
networks Hybrid-pi model Common collector Common emitter Common base Common source Common gate Emitter degeneration "Common Drain Amplifier or Source
Common_drain
Electronic amplifier circuit type
amplifier variables Two-port networks Common drain Common source Common base Common emitter Common collector Paul R. Gray; Paul J. Hurst; Stephen H. Lewis;
Common_gate
Amplifier consisting of two or more simple amplifiers connected in series
in a common emitter configuration or field-effect transistors (FETs) in a common source configuration. There are some applications where the common base
Multistage_amplifier
Process necessary for BJT amplifiers to work correctly
of the same part. Also depends on the collector-emitter voltage due to the Early effect. Base-emitter voltage ( V b e {\displaystyle V_{\mathrm {be} }}
Bipolar_transistor_biasing
Class of digital circuits
(inverter or NOT gate) implementing logical negation. It consists of a common-emitter stage with a base resistor connected between the base and the input
Resistor–transistor_logic
Two-stage amplifier in an electronic circuit
consists of a common emitter stage feeding into a common base stage when using bipolar junction transistors (BJTs) or alternatively a common source stage
Cascode
Variation in the effective width of the base in a bipolar junction transistor
the collector is much longer than the base. The emitter–base junction is unchanged because the emitter–base voltage is the same. Base-narrowing has two
Early_effect
Type of electronic circuit
the circuit will oscillate at that frequency. Many amplifiers such as common-emitter transistor circuits are "inverting", meaning that their output voltage
Electronic_oscillator
Two-BJT transistor digital logic
I2L circuit is the common emitter open collector inverter. Typically, an inverter consists of an NPN transistor with the emitter connected to ground
Integrated_injection_logic
Topics referred to by the same term
slang for a tourist or newcomer EMIT or Enzyme multiplied immunoassay technique, a common drug test Emit (video game) Emitter (disambiguation) Emission (disambiguation)
Emit
Electronic component delivering stable electric current regardless of voltage
base of Q1 and emitter resistor, R2. Voltage across R2 (VR2) is given by VZ − VBE, where VBE is the base-emitter drop of Q1. The emitter current of Q1
Current_source
Power supply connections for integrated circuits
junction transistor, for example, in a common-emitter configuration, the DC voltage at the collector, emitter, and base (with respect to ground) may be
IC_power-supply_pin
Effect in electronics
necessarily the overall gain). For example, a common base may be used as a current buffer at the output of a common emitter stage, forming a cascode. This will
Miller_effect
Electrical instrument
transistor. Base-to-collector leakage current with emitter open(ico) Short circuits from collector to emitter and base. Some service testers include a go/no-go
Transistor_tester
Prevention of undesired energy transfer between electrical subsystems
current load. Another common example of the use of decoupling capacitors is across the emitter bias resistor of transistor common emitter amplifiers to prevent
Decoupling_(electronics)
Signal amplifier that doesn't significantly degrade the signal-noise ratio
is low, then a common base or common gate circuit topology may be appropriate. For a medium source impedance, a common emitter or common source topology
Low-noise_amplifier
1954 commercial transistor radio
single-transistor stage amplifies the audio frequency. All amplifier stages use common emitter amplifiers. Stages are transformer coupled, with tuned transformers
Regency_TR-1
Operational amplifier for audio applications
path consists of two consecutive differential stages, a single-ended common emitter voltage amplification stage, and a class B push-pull output follower
NE5532
Diode that emits light from an organic compound
light-emitting device reported by Tang et al.), fluorescent and phosphorescent dyes and conjugated dendrimers. Alq3 has been used as a green light emitter,
OLED
Linear integrated circuit precision shunt regulator
or Darlington pairs require fairly a high collector-emitter voltage drop. A single common-emitter pnp-type transistor can operate correctly in saturation
TL431
Early power transistor
amplification in common emitter configuration. The frequency at which gain begins to drop off may be much lower, see below. The maximum collector-to-emitter voltage
2N3055
Classification of power amplifier
duncanamps.com. Retrieved 2016-06-20. "EE 332 Class Notes Lecture 18: Common Emitter Amplifier. Maximum Efficiency of Class A Amplifiers. Transformer Coupled
Power_amplifier_classes
one package. Often the transistors here are Darlington pairs with a common emitter and flyback diodes, e.g. ULN2003A. While this stretches the above definition
Transistor_array
Type of electrical circuit
exceeds the voltage required to bias the emitter-base junction of Q3, Q3 acts as an emitter follower or common collector amplifier and the base voltage
Wilson_current_mirror
Electronic circuit
source with a low-impedance, high-current load. Unlike the more common compound emitter follower (a "double" in audio engineering terms), where each input
Diamond_buffer
Audio effects unit
effects units live. The circuit inside the Rangemaster is a single stage Common Emitter PNP amplifier which utilizes just nine electrical components, including
Dallas Rangemaster Treble Booster
Dallas_Rangemaster_Treble_Booster
Transistor switch output for integrated circuits
called "open collector, drives high". Open emitter output exposes the emitter as the output. For an NPN open emitter output, the collector is connected to
Open_collector
Device that compares two voltages or currents
have a common-emitter output that produces a small voltage drop between the output and each rail. That drop is equal to the collector-to-emitter voltage
Comparator
Process of creating equivalent circuits
imperfect voltage followers (emitter, source, cathode follower, etc.) and amplifiers with series negative feedback (emitter degeneration), whose input impedance
Miller_theorem
Class of digital circuits
R1), an intermediate level shifting stage (R3 and R4), and an output common-emitter amplifier stage (Q1 and R2). If both inputs A and B are high (logic
Diode–transistor_logic
Bipolar junction transistor operated in the avalanche breakdown region
region of its collector-current/collector-to-emitter voltage characteristics beyond the collector-to-emitter breakdown voltage, called avalanche breakdown
Avalanche_transistor
Guitar effect pedal
boost stage consists of two highpass filters in series, followed by a Common emitter amplifier. This serves to remove unnecessary bass frequencies before
Boss_DS-1
Type of electronic amplifier
A_{vf}} means voltage feedback amplifier gain. Simple amplifiers like the common emitter configuration have primarily low-order distortion, such as the 2nd and
Negative-feedback_amplifier
Unity gain amplifier with low output impedance
the bipolar junction transistor in common-collector configuration (called an emitter follower because the emitter voltage follows the base voltage, or
Buffer_amplifier
Topics referred to by the same term
service broadcast in the very low frequency range in Russia Beta, the common-emitter current gain of a bipolar junction transistor Betacam, a family of half-inch
Beta_(disambiguation)
Determining all voltages and currents within an electrical network
parameter for transistors is usually the forward current gain, h21, in the common emitter configuration. This is designated hfe on data sheets. The small signal
Network analysis (electrical circuits)
Network_analysis_(electrical_circuits)
Each entry on this list of common misconceptions is worded as a correction; the misconceptions themselves are implied rather than stated. These entries
List of common misconceptions about science, technology, and mathematics
List_of_common_misconceptions_about_science,_technology,_and_mathematics
in the form of sockets arranged to allow the plugging-in of the various common packages used for electronic components. Most curve tracers also allow the
Curve_tracer
Lanthanum-140 is a decay product of barium-140, a common fission product. It is a potent gamma emitter. It was used in high quantities during the Manhattan
Commonly used gamma-emitting isotopes
Commonly_used_gamma-emitting_isotopes
Class of electronic circuit
own base–emitter junction: it diverts a part of the base current to ground by connecting a voltage-stable element in parallel to the base–emitter junction
Baker_clamp
Form taken by the network of interconnections of a circuit
different but have identical topologies. This example also demonstrates a common convention of naming topologies after a letter of the alphabet to which
Circuit_topology_(electrical)
Direct conversion process from heat to electricity via photons
generally consist of a heat source, an emitter, and a waste heat rejection system. The TPV cells are placed between the emitter, often a block of metal or similar
Thermophotovoltaic energy conversion
Thermophotovoltaic_energy_conversion
Type of semiconductor laser diode
production process of edge-emitting lasers. Edge-emitters cannot be tested until the end of the production process. If the edge-emitter does not function properly
Vertical-cavity surface-emitting laser
Vertical-cavity_surface-emitting_laser
Type of energy
applied away from the emitter instead, then most of the electrons coming from the emitter will simply be reflected back to the emitter. Only the highest energy
Work_function
Bipolar transistor configuration in electronics
Q1 but with a very high current gain (β). The emitter of Q2 functions as a collector. Hence the emitter of Q2 is labeled "C" in Figure 1. Likewise, in
Sziklai_pair
Electronic circuit with sine-wave output
Kilby in 1958. This schematic drawing shows the oscillator using a common-emitter connected bipolar transistor as an amplifier. The two resistors R and
Phase-shift_oscillator
Combined distribution frame – Common base – Common battery – Common collector – Common control – Common emitter – Commonality – Common-mode interference – Communications
Index_of_electronics_articles
HFE – (i) Human Fertilisation and Embryology (UK Act) HFE – (s) The common-emitter current gain in a BJT transistor (also represented by βF). See: BJT
List_of_acronyms:_H
Each entry on this list of common misconceptions is worded as a correction; the misconceptions themselves are implied rather than stated. These entries
List of common misconceptions about arts and culture
List_of_common_misconceptions_about_arts_and_culture
Method of ion formation
thin film directly to the emitter, or small crystals of solid materials are placed onto the emitter. Slow heating of the emitter then begins, by passing
Field_desorption
Species of flowering plant in the family of Asteraceae
The common sunflower (Helianthus annuus) is a large annual forb in the daisy family Asteraceae. The domesticated form of common sunflower is harvested
Common_sunflower
Type of transistor
are attached at its ends. The emitter is of heavily-doped p-type material. The single PN junction between the emitter and the base gives the device its
Unijunction_transistor
Pharmaceutical drug which emits radiation, used as a diagnostic or therapeutic agent
beta emitter. 11C is a positron emitter. 14C is a beta emitter. 13N is a positron emitter. 15O is a positron emitter. 18F is a positron emitter with a
Radiopharmaceutical
of each port is bonded to a common potential (single-ended signalling) but more complex topologies are possible. This common point is commonly called ground
Unbalanced_circuit
Practical physics application
Light-emitting diodes (LEDs) produce light (or infrared radiation) by the recombination of electrons and electron holes in a semiconductor, a process called
Light-emitting_diode_physics
Device designed to create radiative heat
high-temperature emitter that transfers energy to a cooler object through electromagnetic radiation. Depending on the temperature of the emitter, the wavelength
Infrared_heater
Emission of electrons induced by an electrostatic field
physical object, has been called a "field emitter", a "tip", or (recently) a "Mueller emitter". When the emitter surface is clean, this FEM image is characteristic
Field_electron_emission
Electrohydrodynamic aircraft propulsion
leading emitter wire and a downstream collector. When such an arrangement is powered by high voltage (in the range of kilovolts per mm), the emitter ionizes
Ion-propelled_aircraft
Output device for presentation of information in visual form
display (TFT) Organic light-emitting diode display (OLED) Digital Light Processing display (DLP) Surface-conduction electron-emitter display (SED) (experimental)
Display_device
Irrigation system
distance. An emitter restricts water flow passage through it, thus creating head loss required (to the extent of atmospheric pressure) to emit water in the
Drip_irrigation
238 U 237 Np 238 Pu, 239 Pu, 240 Pu, 244 Pu 241 Am 244 Cm, 245 Cm, 248 Cm 249 Cf, 252 Cf Common beta emitters Commonly used gamma-emitting isotopes
List of alpha-emitting nuclides
List_of_alpha-emitting_nuclides
Small and cheap semiconductor package often used for transistors
left-to-right as the emitter, base, and collector for 2N series (JEDEC) transistors, however, other configurations are possible, such as emitter, collector, and
TO-92
Thermal electromagnetic radiation
the temperature difference between emitter and absorber. Kirchhoff then went on to consider some bodies that emit and absorb heat radiation, in an opaque
Black-body_radiation
Operational amplifier
consists of the matched NPN emitter follower pair Q1, Q2 that provides high input impedance. The second is the matched PNP common-base pair Q3, Q4 that eliminates
ΜA741
Clear fluid emitted from the urethra of the penis during arousal
pre-cum) is a clear, colorless, odorless, viscous, sticky-like fluid that is emitted from the urethra of the penis during sexual arousal and in general during
Pre-ejaculate
Clinical treatment of skin conditions
lights. Following NASA's innovation in the 1990s with Light Emitting Diodes (LEDs) that emit a specific narrow light spectrum, LED Therapy (LEDT) showed
Light-emitting_diode_therapy
double tuning. The circuit shown consists of two stages of amplifier in common emitter topology. The bias resistors all serve their usual functions. The input
Double-tuned_amplifier
Species of freshwater bird
The common loon or great northern diver (Gavia immer) is a large member of the loon, or diver, family of birds. Breeding adults have a plumage that includes
Common_loon
Capacitor used to prevent energy transfer between two circuits
the common impedance to the power supply. A decoupling capacitor provides a bypass path for transient currents, instead of flowing through the common impedance
Decoupling_capacitor
Diode that allows current to flow in the reverse direction at a specific voltage
devices. The emitter–base junction of a bipolar NPN transistor behaves as a Zener diode, with breakdown voltage at about 6.8 V for common bipolar processes
Zener_diode
Species of bird
occur. The common kingfisher has no song. The flight call is a short, sharp whistle chee repeated two or three times. Anxious birds emit a harsh, shrit-it-it
Common_kingfisher
Converts light into current
photodiode is often combined into a single component with an emitter of light, usually a light-emitting diode (LED), either to detect the presence of a mechanical
Photodiode
Frequency change of a wave for observer relative to its source
acts as the wave emitter and the bat as the wave receiver. The frequency of the reflected wave is again Doppler-shifted. A bat, emitting a wave at the frequency
Doppler_effect
Semiconductor laser
Additionally, because VCSELs emit the beam perpendicular to the active region of the laser as opposed to parallel as with an edge emitter, tens of thousands of
Laser_diode
History of semiconductor light source
efficient light emission and signal coupling between a GaAs p-n junction light emitter and an electrically isolated semiconductor photodetector. On August 8,
History_of_the_LED
Class of digital circuits
multiple-emitter input transistor followed by one or more amplifying stages. In a two-input TTL NAND gate, each input corresponds to one emitter of the
Transistor–transistor_logic
Species of amphibian
The common frog or grass frog (Rana temporaria), also known as the European common frog, European common brown frog, European grass frog, European Holarctic
Common_frog
Species of flowering plant
grows as a common herb of fields, gardens, and roadsides. It is in the daisy family Asteraceae. When crushed, the flowers and foliage emit a strong pineapple-like
Matricaria_discoidea
Blinking in quantum mechanics
and OFF (dark) states of the emitter under its continuous excitation. It is a common property of the nanoscale emitters (molecular fluorophores, colloidal
Fluorescence_intermittency
Common NPN bipolar junction transistor
P2N2222 has a different order of pins than the metal case 2N2222, with its emitter and collector connections switched; other plastic-case transistors also
2N2222
capable of unintentionally emitting Radio Frequency energy through electric, magnetic, and electromagnetic means. Common Mode coupling as well as Differential
Common_mode_current
Plant species in the veronica family
vulgaris in the Tibetan Plateau have shown that it is a prolific methane emitter. The roots of H. vulgaris extend into the anoxic zone of wetland soils
Hippuris_vulgaris
gain is the ratio of a transistor's collector current to the transistor's emitter current, or α = i C i E {\displaystyle \alpha ={\frac {i_{C}}{i_{E}}}}
Alpha_cutoff_frequency
Species of crayfish
The common yabby (Cherax destructor) is an Australian freshwater crustacean in the Parastacidae family. It is listed as a vulnerable species of crayfish
Common_yabby
Megastructure may be controlled. He is equipped with a Gravitational Beam Emitter (GBE), a compact but immensely powerful weapon capable of creating holes
List_of_Blame!_characters
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