The Class C amplifier is known to have a Q-point below cutoff. Can you explain how this affects the performance of the amplifier?
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The Class C amplifier is known to have a Q-point below cutoff. Can you explain how...
A class C amplifier severely distorts the signal. How can we use a resonant tuned filter to get the desired signal at the output? Explain. If you compared the input and output signals for a given communication system and found that they were not similar in shape and form, what might you conclude? Please write the answer for these questions in paragraph and clearly.
All questions refer to the "simplified" CE amplifier shown below that has no RE at all, and no Cg. There is also no CL. The bias circuit gives Ic 1.5 mA The transistor has B 120, ro 50 k, Cu 1.5 pF and C 9 pF. You can neglect r. VCC RC 5k C2 +Vo C1 2uF RI R3 Vi- 10k 100 2uF RB 200k a) Find the short-circuit time constants Ti and Ta for capacitors C1and Ca, and find...
1. Explain how to properly configure a class A amplifier to produce very little distortion. 2. Explain the common ways to protect your amplifier design from catastrophic failure.
4. Consider the BJT cascade amplifier shown below Vcc 18V R1 3.3ko 15uF r Vo RL B 150 Rsa 500? 56k? Vi B 150 C1 CE 2.2k? a) Find the DC collector current (approximately the same in both transistors). b) Find the input impedance, output impedance, and no-load voltage gain. c) Find the Av, Avs, and Ai d) Estimate the lower cutoff frequency e) Why does this amplifier have better high-frequency performance thana common-emitter built using the same type of...
Problem 3: 1. 2. What kind of amplifier (given what you have studied in class) is the circuit on Figure P3? Why? Draw the small-signal equivalent circuit of the amplifier circuit on Figure P3 operating at mid- band frequencies. V1 C2 V2 Vout Q2 R3 R1 C1 Rsig Q1 Vsig R2 Figure P3 Problem 3: 1. 2. What kind of amplifier (given what you have studied in class) is the circuit on Figure P3? Why? Draw the small-signal equivalent circuit...
Q-4) (15 pts) An OzU student is designing a multistage amplifier for his/her radio as shown in the figure below and like to make sure that is can be stable if used in unity feedback. Assuming the same gm of 1mS for all the MOS transistor devices: a-) Find out the open loop end-to-end DC gain of his amplifier chain (4 pts). b-) Plot the open loop Bode diagram of the system (4 pts). c-) If you were asked to...
a) What is "power-conversion efficiency' of an output stage? Comparo the class-A and class-B amplifier output stages with rospect to their power-conversion officiencies. b) Assume that an emitter follower 9, is used as a class-A output stago, with the constant current supplied by another transistor 2. (as in Figure Q.4.a). Let Vcc=16V, 1 =100mA, and R=10002. If the output voltage is an 4-V-peak sinusoid, find the power conversion efficiency. VC Figure Q.4.a c) Explain the crossover distortion in a class-B...
How the output voltage can be controlled by Op amplifier and open loop gain? Explain the differences between integrator and differentiator.
5. A Feedback amplifier is shown below. You have already designed this amplifier in lab 2. Use same component values that you used when you did the lab except for R1 and R2 which constitutes the feedback network. Design the feedback network for a feedback factor of 0.05. +15V SRB SRC RA Voir Stage 1 Stage 2 a. Show your design calculations below and clearly indicate your chosen resistor values.
Answer to two decimal places. You have a list of data with Q 1 =-9, Q 3 =244. What is the cutoff below which any potential lower outliers fall?