In doing a small signal analysis, what changes are made to the original circuit? How does...
What does the group delay mean in the small signal AC analysis?
1) Does the quality factor depend on the frequency of the original AC signal? 2) How can the quality factor of the rectifier circuit be increased?
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...
Question 5 As the FM signal changes frequency so does the ZCD's output. What aspect of the signal changes to achieve this? O N either the signal's mark nor space O Only the signal's mark O Only the signal's space Both the signal's mark and space Question 6 What does this tell us about the DC component of the comparator's output? Question 5 As the FM signal changes frequency so does the ZCD's output. What aspect of the signal changes...
Problem 4 (22 points): What is the small signal gain of this amplifier in terms of the small signal parameters gmi and roi for transistors i = 1..4. Ignore capacitances. VOD IM M2 M2 T ساتھ ہی اس T VB3 [M4 IGND BI VB2 VBB are DC biasing
shows two versions of a common-emitter amplifier and (i Fig. 1 (a) Find the expression for the small-signal voltage gain of Fig. 1(i) in terms of relevant small- signal parameters. (b) Over what frequency range will the gain of the Fig. 1(i) circuit be the same as that of the Fig. 1(i) circuit? (c) Which of the two circuits will show less variation in its de biasing in the presence of processing or temperature variations? Justify your answer. (d) Explain,...
Example: Small Signal Circuit Consider the circuit to the right. Assume ls-TA and β-100. -I Draw the small signal equivalent circuit What is the ratio of the small signal voltage at the output node v Vout) to the input voltage (v1)? 01 Vout 750mv Q1
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 1 -Integrated Common Source Amplifier: For the circuit in Fig.1, draw the small signal equivalent circuit and find the following small signal values: gm1 go1 go2 Vout/Vin Rout You can assume that the overdrive voltage for all transistors is 0.2V and A for the NMOS and PMOS are 0.1V1 and 0.05V1 respectively. The drain source current of the transistors M1 and M2 is 20HA. All gate lengths of homework 3.) 0.5um. (The DC analysis for this circuit was done...
2. For the amplifiers below, not all the bias details are shown. For the circuit on the left, what is the small signal resistance looking into the a. source of M2 (Ri2)? b. Using part a, Find the voltage gain at the drain of Mi, and the total gain at the output. For the circuit on the right, known as a cascode amplifier, find the voltage gain. c. Express your answers in terms of the transistors gm, and RD. Assume...