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3. DC power supply 4. Capacitors 10pF 5. bread board. 6. AC function generator Theory: Transistor amplifier's amplify an AC input signals that alternates between some positive value and a corresponding negative value. Then some way of "presetting" the amplifier's circuit configuration is required so that the transistor can operate between these two maximum or peak values. This can be achieved using a process known as Biasing. Biasing is very important in amplifier design as it establishes the correct operating point of the transistor amplifier ready to receive signals, thereby reducing any distortion to the output signal. Also, the use of a static or DC load line drawn onto the output characteristics curves of an amplifier allows us to see all the possible operating points of the transistor from fully "ON" to fully "OFF", and to which the quiescent operating point or Q-point of the amplifier can be found. The aim of any small signal amplifier is to amplify all of the input signal with the minimum amount of distortion possible to the output signal, in other words, the output signal must be an exact reproduction of the input signal but only bigger (amplified). To obtain low distortion when used as an amplifier the operating quiescent point needs to be correctly sclected. This is in fact the DC operating point of the amplifier ست سوسن حميدام.م. نور فاضل حبيب and its position may be established at any point along the load line biasing arrangement. sultable Thebresr possible position for this Q-point is as close to the center position of the load line as reasonably possible, when Vce 1/2Ve.

3. DC power supply 4. Capacitors 10pF 5. bread board. 6. AC function generator Theory: Transistor amplifier's amplify an AC input signals that alternates between some positive value and a corresponding negative value. Then some way of "presetting" the amplifier's circuit configuration is required so that the transistor can operate between these two maximum or peak values. This can be achieved using a process known as Biasing. Biasing is very important in amplifier design as it establishes the correct operating point of the transistor amplifier ready to receive signals, thereby reducing any distortion to the output signal. Also, the use of a static or DC load line drawn onto the output characteristics curves of an amplifier allows us to see all the possible operating points of the transistor from fully "ON" to fully "OFF", and to which the quiescent operating point or Q-point of the amplifier can be found. The aim of any small signal amplifier is to amplify all of the input signal with the minimum amount of distortion possible to the output signal, in other words, the output signal must be an exact reproduction of the input signal but only bigger (amplified). To obtain low distortion when used as an amplifier the operating quiescent point needs to be correctly sclected. This is in fact the DC operating point of the amplifier ست سوسن حميدام.م. نور فاضل حبيب and its position may be established at any point along the load line biasing arrangement. sultable Thebresr possible position for this Q-point is as close to the center position of the load line as reasonably possible, when Vce 1/2Ve.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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H o Vout 3. DC power supply 4. Capacitors 10uF 5. bread board. 6. AC function generator Theory: Transistor amplifier's amplify an AC input signals that alternates between some positive value and a corresponding negative value. Then some way of "presetting" the amplifier's circuit configuration is required so that the transistor can operate between these two maximum or peak values. This can be achieved using a process known as Biasing. Biasing is very important in amplifier design as it establishes the correct operating point of the transistor amplifier ready to receive signals, thereby reducing any distortion to the output signal. Also, the use of a static or DC load line drawn onto the output characteristics curves of an amplifier allows us to see all the possible operating points of the transistor from fully "ON" to fully "OFF", and to which the quiescent operating point or Q-point of the amplifier can be found. The aim of any small signal amplifier is to amplify all of the input signal with the minimum amount of distortion possible to the output signal, in other words, the output signal must be an exact reproduction of the input signal but only bigger (amplified). To obtain low distortion when used as an amplifier the operating quiescent point needs to be correctly sclected. This is in fact the DC operating point of the amplifier ست سوسن حميدم. م. نور فاضل حبيلب and its position may be established at any point along the load line sultable biasing arrangement. Theest possible position for this Q-point is as close to the center position of the load line as reasonably possible, when Vce = 1/2Ve. 150k 15k 2 1k Discussion 1- In amplifier circuit, why biasing of transistor is nccessary? 2-Which configuration in which current gain of transistor amplifier is lowest? - For amplification CE is preferred, why? ست سوسن حمیدام.م. نور فاضل حبيب
Transcribed Image Text:H o Vout 3. DC power supply 4. Capacitors 10uF 5. bread board. 6. AC function generator Theory: Transistor amplifier's amplify an AC input signals that alternates between some positive value and a corresponding negative value. Then some way of "presetting" the amplifier's circuit configuration is required so that the transistor can operate between these two maximum or peak values. This can be achieved using a process known as Biasing. Biasing is very important in amplifier design as it establishes the correct operating point of the transistor amplifier ready to receive signals, thereby reducing any distortion to the output signal. Also, the use of a static or DC load line drawn onto the output characteristics curves of an amplifier allows us to see all the possible operating points of the transistor from fully "ON" to fully "OFF", and to which the quiescent operating point or Q-point of the amplifier can be found. The aim of any small signal amplifier is to amplify all of the input signal with the minimum amount of distortion possible to the output signal, in other words, the output signal must be an exact reproduction of the input signal but only bigger (amplified). To obtain low distortion when used as an amplifier the operating quiescent point needs to be correctly sclected. This is in fact the DC operating point of the amplifier ست سوسن حميدم. م. نور فاضل حبيلب and its position may be established at any point along the load line sultable biasing arrangement. Theest possible position for this Q-point is as close to the center position of the load line as reasonably possible, when Vce = 1/2Ve. 150k 15k 2 1k Discussion 1- In amplifier circuit, why biasing of transistor is nccessary? 2-Which configuration in which current gain of transistor amplifier is lowest? - For amplification CE is preferred, why? ست سوسن حمیدام.م. نور فاضل حبيب
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