analog quiz 4

The circuit in Figure below is a BJT common collector amplifier. Obtain expressions for both the voltage gain (AV = Vout / Vin) and the current gain (AI = Iout / I in). Assume Vin >> VBE   please need steps explanation so I can understand and learn.   thanks in advance   Please in typing format please

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Q7. Find the relationship between the output and the input (Vout/Vin ) in the amplifier circuit depicted in Figure Q7 (a) and (b). State any assumptions you make. Please step by step I need to understand.

Draw the DC and AC load line for a transistor amplifier circuit shown in Figure, also describe the optimum operating Point for the given values as follows: Rc = 10 KQ ; RL=20 KQ and V cc = 20 V +Vcc Ic Rc Cc Cc V. out R1 Vin www

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Figure 1(a) shows a series fed class A amplifier circuit. In order to achieve the maximum efficiency, the Q point must be located at the center of the DC load line as shown in Figure 1(b). This generates the maximum output current swing of Icmax (p – p) RC and the maximum output voltage swing is VCEmax(p – p) = Vcc Assume that the maximum input de power is (1 Vcc Pimax(dc) = Vcc!cQ(max)=Vcc \2° Rc. 2Rc Find the maximum efficiency, 7 of this circuit.

1) DC offsets, bias currents Vin R1 www 1k www Ú1 R3 R2 www 4k OUT ww11. U2 R4 1k OUT R5 ww 1k Vout The bias characteristics for both amplifiers are VDCoffset = 4mV I bias = 2μA I¹ bias = 2μa a) Determine a value for resistor R3 such that the output voltage due to DC biases is zero.

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1. Design a circuit to convert from voltage to current using an operational amplifier. The practical values of voltage should varies from 1V to 5V to obtain the output current such that minimum current should be 4mA and maximum current to be 20 mA.   2. Clearly outline the detailed design procedure including all the assumptions made in the report including cost analysis.

b) For a class B power amplifier, show that the maximum efficiency is 78.5%. For a class B amplifier providing a 20V peak-to-peak signal to an 8 2 speaker and a power supply of Vee 15V, determine: i) ii) iii) c) %3D Input power Output power Circuit efficiency

1.7. In a single transistor based amplifier (a) Source in a common source w/o degeneration is at DC ground but not AC ground (b) Source in a common source with degeneration is at AC ground but not DC ground (c) Input voltage is commonly connected to the gate (d) Drain in a common source w/o degeneration is at AC ground but not at DC ground 1.8. In a positive voltage system (all DC voltages in circuit >0V) (a) For a common gate amplifier, maximum small signal current occurs in saturation (b) Gate terminal is both DC ground and AC ground (c) Current gain of the common gate stage is approximately unity (d) Drain of a common drain NMOS based amplifier is connected to max voltage 1.9. In a single transistor based amplifier (a) Common source with degeneration is used to increase output impedance (b) Common source amplifier with degeneration does not provide phase inversion (c) The maximum intrinsic gain of basic CS amplifier w/o degeneration is independent of biasing condition (d) CG stage…

4)please solve with work , will upvote

A field effect transistor (FET) A. Uses a forward bias p-n junction, B. Uses a high concentration emitter junction, C. Has a very high input resistance, D. Depends on flow of minority carrier. As compared to transistor amplifier JFET amplifier has A. Higher voltage gain, less input impedance, B. Less voltage gain, less input impedance, C. Less voltage gain, higher input impedance, D. Higher voltage gain, higher input impedance. The pinch off voltage is the voltage A. At which gate source junction breaks down, B. Which causes depletion regions to meet, C. The voltage applied between drain & source, D. Neither of these. O If properly biased JFET acts as A. Current controlled current source, B. Voltage controlled voltage source, C. Voltage controlled current source, D. Current controlled voltage source.

Q2) for the amplifier shown in Figure 1) Determine the voltage gain (Av) and the current Gain (Ai) 2) Determine The input and output resistance 3) Determine The output voltage Vout 4) Draw The Ac load line 5) Draw the AC equivalent circuit 6) Determine the maximum input voltage (Vi(p-p)) for maximum output voltage (Vo(p-p)) without distortion. HH Vi-20 mv RB 56 kQ +₁ D B = 50 - 10 V HH RE 1kQ Vou RL • 10 Ω ww11

2) Draw the small signal model for the amplifier shown below. Do not make any approximations. Label Vin and Vo. Vdd Vdd Vdd R2 R4 R6 R1 Vo1 Vin2 Vo Vin R5 R3 R7

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Just solve D and E

Design a linear amplifier, based on a bipolar junction transistor 2N3904 in common emitter configuration. The supply voltage is 28V. The quiescent operating collector current for the amplifier should be around 10mA. The data sheet for the transistor shows that the DC current gain at this operating current is about 200. Draw the circuit diagram of your design. Label all the components in the circuit. Show all the voltages and currents that you use for calculations in your design. Label them using consistent naming convention.

Problem 3: The circuit below is a BJT common collector amplifier. Obtain expressions for both the voltage gain A, = You and the current gain A1 = put. Assume Vin » VBE. Vol (Power supply) To 2 Tin Ic 2 9m 2 Ic VT Rin B www. + vin -VBE RL B 1+³ V BE [te] IC VCE E Tout RL O Vin - VBE + Vout

Introducion to Electronic Analysis and Design - CE05 To have a good amplifier Select one: a. The input resistance should be high b. the output resistance should be high c. the voltage gain should be equal to zero d. the current gain should be equal to zero Ssment CE255/EE255 (O1)- Dr. Mamoun Al-Mistar Jump to...

List the elements included in the total input resistance of a common-collector amplifier. What is the phase relationship of the input and output voltages of a CE(common emitter) and CC(common collector) amplifier? 0 T-fo TE

Prob 1: For each of the 8 circuits below, draw small signal model and calculate Vout/Vin. Vb1, Vb2 are dc voltage sources. and I1 is an ideal dc current source. Ignore body effect for all problems. Vino M3 M₂ M₁ (a) VDD J Vb₁ M3 (e) VDD VinM₂ Vb2M₁ Vb3 Vb2 - Vout Vb1 Vout HE Vout o Vb₁ VinM₂ 46! M3 (b) VDD B M₁ T. M3H (f) VDD VinM₁ M₂ Vout VinM₂ 4M₁ (c) M3 M3 VDD VDD 74 Vb1M₂ Vino M₁ (g) Vout Vout Vb1 Vb2 HE Vin VinM₂ M3 M3 VDD (d) HL M₁ M₁ -o Vout M2o Vout 1₁ (h) VDD

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Q1. Figure 1 shows a differential amplifier. Assume that all transistors are identical. 3=180, V₂=0.026 Vand VBE = 0.7V. a) b) c) Show that the d.c. bias current to the differential pairs is Iccs = 0.6 m.A. Calculate the d.c. voltages at the output terminals V1 and 12 Given that the input signals are V₁ = 4sin(wt) and V₁ = 2 sin(wt) in mV, find the a.c. voltage between Vo1 and Vo2- 5k0 9.6k0 +12 V 6k0 200411 01₁ Figure 1 I CCS 12k0 6k0 0411

pro 2 pls write it clearly so i can read it

In the following figure, Q, and Q2 are identical and operate in active mode. if Ic1 = 9.5 l then V-V2: V3 V2 Select one: a. Vt In(5) Ob. V-In(3) C. None of these 9av In(9.5) Oe v-In(10)

How did they get this circuit? Break down simply

Q1:-Design and connect a subtractor operation amplifier circuit if the R1=R2=R3=Rf and V1=2V, V2=5V, draw the circuit with all details and record the measurement of the output voltage.

The common-mode gain of the front-end circuit for the instrumentation amplifier is equal to ACM= 1 V/V. If the instrumentation amplifier is not reducing the common-mode signal, then why is the CMRR of an instrumentation amplifier higher than a differential amplifier, in general?