Users Also Read
MCQ's Search Engine
Electrical Engineering
Mechanical Engineering
Civil Engineering
Automobile Engineering
Chemical Engineering
Computer Engineering
Electronics Engineering
Medical Science Engg
All Engineering Dictionary Terms
Definition of "Emitter Follower" |
A buffer. A transistor circuit that reproduces the input signal, in phase but at something less than unity gain [characterized by a high input impedance and a low output impedance]. A transistor circuit that uses the emitter as the output which follows the input of the Base voltage, minus a diode drop. A Common Collector Amplifier [shown to the right] because the collector terminal is common to both the input and output side of the circuit [Vcc in this case]. The Emitter follower has a high input impedance and a low output impedance. / Emitter follower is one of three basic single-stage bipolar junction transistor amplifier topologies, typically used as a voltage buffer. / Point-to-point construction refers to a non-automated method of construction of electronics circuits widely used before the use of printed circuit boards and automated assembly gradually became widespread following their introduction in the 1950s. Circuits using thermionic valves vacuum tubes were relatively large, relatively simple the number of large, hot, expensive devices which needed replacing was minimised, and used large sockets, all of which made the PCB less obviously advantageous than with later complex semiconductor circuits. Point-to-point construction is still used to construct prototype equipment with few or heavy electronic components. / a common collector amplifier. Has a high current gain, high input impedance and low output impedance. |
Please type any word or choose alphabet below... |
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 1 2 3 4 5 6 7 8 9 0 |