Electronics Engineering

Why a transistor is used as a amplifier and switch?

789

Top Answer
User Avatar
Wiki User
2011-11-01 10:12:44
2011-11-01 10:12:44

transistor has 2 output 1 and 0 so can be used as a switch

1
๐Ÿ™
0
๐Ÿคจ
0
๐Ÿ˜ฎ
0
๐Ÿ˜‚
0

Related Questions

User Avatar

Based on the application, a transistor can be used as a switch or a signal amplifier in a circuit. - Neeraj Sharma

User Avatar

A transistor does not act as an amplifier. It is used as a component in an amplifier circuit.

User Avatar

amplifierswitchregulatormodulatordemodulatorlogic gatevariable resistoretc.

User Avatar

A transistor can be used as an amplifier because the electrons in the base are multiplied by a gain factor to give the collector current.

User Avatar

amplifier, switch, oscillator, etc.

User Avatar

A PNP transistor has no advantage or disadvantage over an NPN transistor in its ability as an amplifier. Rather, the current-handling capacities of the transistor determine if it's usable as an amplifier.

User Avatar

Biasing is used in a transistor amplifier circuit in order to place the transistor as nearly as possible in the center of its linear region. Transistors have cutoff, linear, and saturation regions. Too little bias current, and you enter cutoff - Too much, and you saturate. Both conditions cause distortion when you attempt to use the transistor as an amplifier, as opposed to a switch.

User Avatar

That depends on both the input signal and the type of amplifier the transistor is used in.

User Avatar

An unbiased transistor is one being used with no bias voltage to offset its operating point. If the input signal is very small it still can operate as an amplifier but the output will be non-linear. One use for an unbiased transistor is when the transistor is used as a switch, turning it on or off.

User Avatar

A transistor is used to switch electronic signals.

User Avatar

Only because the circuit that its embeded in is designed that way. Remember, a transistor is basicly an amplifier ... only if you design everything to go to the extreams will it act as a switch.

User Avatar

A transistor used as a switch is operated in saturated mode, where the ratio of base-emitter current over collector-emitter current is far more than hFe, or beta gain. The transistor is either fully on or fully off in this mode. A transistor used as an amplifier is operated in linear mode, where the ratio of base-emitter current over collector-emitter current is equal to or less than hFe, or beta gain. The transistor is partially on in this mode, and is operating as a current controlled current sink.

User Avatar

it is a transistor used in IR TOGGLE SWITCH. :-)

User Avatar

An amplifier is any device that changes, usually increases, the amplitude of a signal. while a transistor is a semiconductor device used to amplify and switch electronic signals. Hope this helps

User Avatar

The Junction Field Effect Transistor (JFET)exhibits characteristics which often make it more suited to a particular application than the bipolar transistor. Some of these applications are: - High Input Impedance Amplifier - Low-Noise Amplifier - Differential Amplifier - Constant Current Source - Analogue Switch or Gate - Voltage Controlled Resistor

User Avatar

Based on the application, a transistor can be used as a switch or a signal in a circuit.

User Avatar

Resistors are used in the single stage amplifier to bias the transistor for proper operation.

User Avatar

Biasing is used in a transistor amplifier circuit in order to place the transistor as nearly as possible in the center of its linear region. Transistors have cutoff, linear, and saturation regions. Too little bias current, and you enter cutoff - Too much, and you saturate. Both conditions cause distortion when you attempt to use the transistor as an amplifier, as opposed to a switch. Type your answer here...

User Avatar

depends on the circuit it is used in:CE/CS is inverting voltage amplifierCC/CD is noninverting current amplifierCB/CG is noninverting voltage amplifier

User Avatar

operating region of the transistor is the area of the voltage and an electronic configuration in which a transistor can work with its full efficiency. In that operating region transistor can be used easily what above said by harsh is correct...the following may help u further... Based on application the transistor is decided where to lie. for example transistors are made to lie in active region to make it as amplifier. when transistors are used as switch it is made to lie in saturation region(when switch is made as ON) and cut-off region(when switch is made as OFF).....

User Avatar

amplifierswitchcurrent source/regulatorvoltage source/regulatormodulatordemodulatoretc.

User Avatar

A transistor is an electronic component that can be used as an amplifier or a switch. It has 3 connections: base, collector, emitter. It conducts electricity via the emitter to the collector only when the right voltage is applied to the base. As an amplifier, the amount of current it conducts at any instant will vary in a manner which depends on the instantaneous value of the varying voltage that is applied to the base.

User Avatar

When used as a switch, a transistor is usually driven completely on (saturation) or completely off (cutoff). There are a few kinds of switching circuits though (e.g. ECL) that avoid saturation/cutoff to obtain faster speed, these operate on a fixed constant current and switch it through one of two transistors. When used as an amplifier it is biased so that it operates in a linear, or near-linear, part of its characteristic curve so that the output faithfully copies the input.

User Avatar

the common collector can use as voltage buffer

User Avatar

When transformer is used in step up mode then we can use transformer as amplifire


Copyright ยฉ 2020 Multiply Media, LLC. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply.