Question

In: Electrical Engineering

One transistor amplifier BJT 1.Design a single transistor amplifier BJT with appropriate coupling and bypassing capacitors....

One transistor amplifier BJT 1.Design a single transistor amplifier BJT with appropriate coupling and bypassing capacitors. 2.Draw the DC equivalent circuit and find the Q point. Draw the AC equivalent circuit and find parameters of your full amplifier circuit (gain and input resistance) . 3.Simulate the FULL amplifier circuit in DC state, indicate the Q point on the diagram and compare with theoretical results. 4.Simulate the FULL amplifier circuit using appropriate sin input signal(s). Using the simulation results from the graph, find the same amplifier circuit parameters, and compare with theoretical result. Draw your conclusions.

Solutions

Expert Solution

Answer:

1)One transistor amplifier BJTDesign a single transistor amplifier BJT with appropriate coupling and bypassing capacitors.

The common emmiter RC couple amplifier one of the simplest and elementry transistor amplifier that can be made.

If designed properly this amplifier can provide excellent signal .

The circuit daigram of a single stage common emitter RC coupled amplifier using one transistor .

a) RC coupling single transistor

Capasitor c in is the input Dc decoupling capasitor which blocks any Dc component if it present in the input signal from reaching the Q1 base.

R1 and R2 are the biasing resistors this network provides the transistor Q1 s base with necessry bias voltage to drive it into thhe active region.

BJT o/p Charcteristics

So all parts of there input wave from with amplitude 0.7 V will be absent in the output

wave from  

2)  .Draw the DC equivalent circuit and find the Q point. Draw the AC equivalent circuit and find parameters of your full amplifier circuit (gain and input resistance) .

a) Dc equivalent for the BJT Amplifier

  

b) Dc Equivalent ckt

All capasitors in the original amplifier circuit are replced by open circuits disconnecting V1 , R1 and R3 from the circuit and living RE the transistor will be replaced by its DC model.

DC Q - point from the equalent circuit by using the appropriate large signal transistor model.

3)  Simulate the FULL amplifier circuit in DC state, indicate the Q point on the diagram and compare with theoretical results.

A transistor amplifiers designed work in the activ region

A single stage Amplifier is disigned using voltage divider bias. In a voltage divider.

VB = VB   = Vcc R2 / R1 +R2

4) Simulate the FULL amplifier circuit using appropriate sin input signal(s).

Assing the parameters for each and a very component using the function tool parameters / models and its option tool set parameters .

B) Transient analysis

DC sweep analysis In this types of analusis usually temoerature B the sweeping parameter.

The user has the Provision of sweepins parameters of.


Related Solutions

Topic 6. One transistor amplifier (BJT) 1. Design a single transistor amplifier (BJT) with appropriate coupling...
Topic 6. One transistor amplifier (BJT) 1. Design a single transistor amplifier (BJT) with appropriate coupling and bypassing capacitors. You can use the examples from the book or homework, but need to change the parameters values . 2. Draw the DC equivalent circuit and find the Q point. Draw the AC equivalent circuit and find parameters of your full amplifier circuit (gain and input resistance) . 3. Simulate the FULL amplifier circuit in DC state (you cannot use DC operating...
Design a three-stage operational amplifier at the transistor level using BJT technology. Your design should include...
Design a three-stage operational amplifier at the transistor level using BJT technology. Your design should include a differential input stage with large input resistance, a gain stage, and an output stage with low input resistance. Justify your design choices. Use the op-amp you designed to create an inverting amplifier using negative feedback with a given gain, A = −Rf/Ri . Provide a characterization of your op-amp design which includes input resistance, output resistance, input bias currents, input offset current, input...
Design a single stage BJT amplifier with the following constraints: This involves the following: -DC and...
Design a single stage BJT amplifier with the following constraints: This involves the following: -DC and AC analysis and the frequency response of the amplifier. -Use a 2N2222 transistor -Power supply (VCC): 6 V -An input impedance near to 3 kΩ -Overall midband voltage gain of -30 V/V -A load resistance of 2 kΩ -The input signal has an RSignal of 500 Ω -Choose a good Qpoint and select the coupling and bypass capacitors to obtain an fL-3dB of 100...
Design a complete single-stage amplifier using transistor to amplifier a sine-wave voltage signal with an amplitude...
Design a complete single-stage amplifier using transistor to amplifier a sine-wave voltage signal with an amplitude of 2 mV, frequency range from 20-20kHz and internal resistance of 1k ohm. the output of the amplifier supplies to a load of 5k ohm and the required voltage amplitude around 300 mV.
Design a mosfet/bjt open ended Show values for resistors and capacitors
Design a mosfet/bjt open ended Show values for resistors and capacitors
Consider a BJT transistor acting as a switch. How to determine the design resistances if we...
Consider a BJT transistor acting as a switch. How to determine the design resistances if we want to transition between cut off and saturation region to active region?
1. the use of Amplifier Loading in a circuit.? 2. the DC operation of a BJT...
1. the use of Amplifier Loading in a circuit.? 2. the DC operation of a BJT using an equivalent model in terms of base current (master) and output current (slave) loops.
Design a differential amplifier using three 2N3904 transistors. Use the third transistor as acurrent source device....
Design a differential amplifier using three 2N3904 transistors. Use the third transistor as acurrent source device. The differential transistors are to be biased at 10v and 10mA. Use Vcc of your choice and differential gain at 1KHz is to be 50.
a) As an Engineer you are to design a single stage JFET Amplifier. Explain in your...
a) As an Engineer you are to design a single stage JFET Amplifier. Explain in your own words its operation , identifying each components and their functions . b) With your knowledge and understanding in MOSFET , explain electrically with graph supporting your answers , the three regions of operation of a MOSFET. please answer all.thank you.
1) A. In a 1 bit half adder which design is the sizing of the transistor...
1) A. In a 1 bit half adder which design is the sizing of the transistor most area efficient, CMOS logic, transmission gate, or dynamic logic. Explain. B. If the W/L of the transistors at gate level are the same, which one will be the fastest driving the same amount of load. Explain. C. Which is the most power efficient?
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT