Answer:
b) From the above circuit we are able to specify the come components required for the experiment. DC power supply ( biasing) Function generator (sinusoidal waveform) Oscilloscope ( observe waveforms and their values) Resistors ( RB,Rc,RL,RE) Capacitors ( Cc,Ce,Cb) Breadboard Connection Wires Probes Multimeter ( To check terminals of BJT, DC parameters) BJT c) To measure the voltage gain we needed to determine the output voltage corresponding to input voltage as voltage gain is defined as the ratio of output AC voltage to the input voltage. Initially, set all the DC parameters i.e bias the circuit and set the question -point. Apply an sinusoidal input from the function generator of certain voltage, frequency and observe the output voltage in the oscilloscope. Computer the voltage gain at this frequency. In BJT the voltage gain depends on the frequency and it is maximum in the mid band. So, Increase the frequency keeping the input voltage constant and again check the output voltage and compute voltage gain. Tabulate the readings for various frequencies and compute the voltage gain. Finally, select the mid band gain which corresponds to maximum voltage gain
3.2 14 marks] You are required to design, set up and physically measure the voltage gain of a BJT...
You are required to design a 2-stage voltage amplifier (find values for RE, RC1, RC2) to meet the following criteria: an input resistance of 400 kΩ and an overall voltage gain equal to or greater than 250, with a resistor output load, RL. Use a common-emitter with emitter degradation (RE) stage for the input, followed by a commonemitter amplifier with bias current equal to 0.5 mA. (VCC = 20 V, βo = 200 and the DC levels of the first...
1. Set up the circuit of Figure 1. Notice that the voltage probes have been renamed VB and VE, and the display has been customized to only show V(dc). You can do this by double-clicking the display and selecting the parameters tab. VCC 20.0V RB 470KO VB Q2 2N4124 Vide- Vide) VE RE $2.20 FIGURE 1: EMITTER FOLLOWER AMPLIFIER TECH 150 - Electronic Devices and Circuits Lab 10 - The Emitter Follower Amplifier - using Multisim 2. Calculate the theoretical...
Problem 2: BJT Small-Signal Voltage Amplifiers in the lectures, we covered in detail the analysis of an npn BJT amplifier that utilizes a single-supply DC biasing. In this problem, you will meet two additional amplifier architectures- one that is based on dual DC supplies combined with a DC current source, and the other that utilizes a pnp BJT with single-supply biasing. In both problems (below) you need to manually find the amplifier's Q-point (that is, the DC values of Ic...
Problem 2: BJT Small-Signal Voltage Amplifiers In the lectures, we covered in detail the analysis of an npn BJT amplifier that utilizes a single-supply DC biasing. In this problem, you wi meet two additional amplifier architectures-one that is based on dual DC supplies combined with a DC current source, and the other that utilizes a pnp BJT with single-supply biasing In both problems (below) you need to manually find the amplifier's Q-point (that is, the DC values of Ic and...
can you do 4.83 Ar- Q Sea 100 V, what does the gain become? age at the collector. (b) Replacing the transistor by its T model, da the small-signal equivalent circuit of the a plifier. Analyze the resulting circuit to dete mine the voltage gain t/ 04.81 Consider the CE amplifier circuit of Fig. 4.43(a). It is required to design the circuit (i.e., find values for I and Rc) to meet the following specifications: (a) R,5kn (b) the voltage gain...
Q1. You are given a 12 V DC power supply. You are expected to develop a voltage divider to achieve a voltage of nominal 5V value using a pair of resistors from the E 12 range, with the restrition that you are not expected to draw a current of more than 1 mA from the 12 V DC supply i. Develop a simple circuit showing the possible values for each resistor pair, and the range of the DC output possible...
Problem 3: Design Problem On Figure P3a, you have a Common Source (CS) n-channel MOSFET amplifier. Notice the absence of a source resistor Rsig and load resistor R. If we know how the present amplifier (the one on Figure P3a) behaves without Rsig and RL, we can infer its behaviors if Rsig and R were to be added. design the amplifier circuit on Figure P3a, i.e., you have to find appropriate values for RGj You are to RG,, RD, and...