Pre_Lab_11_ECEN_325_Steve_Lopez

Describe two different methods for determining the stability of an amplifier.

Explain deeply how Darlington- Voltage-Divider Amplifier with current mirror and the output phase is non-inverted works.

1. Compare JFET as an terms of their advantages and disadvantages amplifier versus MOSFET as an amplifier in

PLEASE NEED NOW For the amplifier circuit of the Figure shown below, calculate the voltage gain of each stage, the overall amplifier voltage gain and the output voltage.

Topic: Field Effect Transistor Given the FET Amplifier circuit. Answer the question asked in each letter. a. Transconductance Gain (gm) b. Drain Resistor (RD) c. Input Impedance (Zi) d. Output Impedance (Zo) e. Voltage Gain (Av) f. What is the AC configuration of the amplifier?common source, common gate, common drain, or source bias?

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.

Draw what makes this a direct coupled 2 stage amplifier on the diagram?

........ (Figure-1) R. RB= 380kN,Rc= 1kN B = 100, VBB = Vcc=12V RB ww Vec CC ......... I, V CE СЕ V ВЕ BB Q-1-b) Describe briefly the input / output characteristics and application of Common Emitter BJT Configuration

For power amplification of a CLASS A amplifier circuit, the operating point in the output characteristic curve should be located at the of the DC load line. middle end to end point maximum voltage point maximum current point

What type of biasing circuit using in the common source JFET amplifier?

. Part a: 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?

circuits by using the small signal models of the transistor. Assume the Early voltage of the transistors are infinitely large. Calculate the small-signal input and output impedances of the following Vcc R1 R1 Rout VB RE Rin R2

Electronic Amplifiers Concept

Q3 Figure 3 shows two current mirrors based on MOSFET. Derive a formula relating the input current Iin to the output current Iout for the current mirror on the left of Figure 3 stating any assumption. (a) (b) Derive the input resistance Rin and output resistance Rout for the circuit on the left of Figure 3. State any assumption. (c) Derive a formula relating lin and Iout for the circuit on the right of Figure 3 assuming that M1 and M2 are identical, and that the length and width of the channel for the transistor M4 are double respect to those of M3. State anv assumption. VDD M3 M4 out Iout M1 M2 M1 M2 Vss = 0 V Vss = 0 V Figure 3

Among the three characteristics of a transistor amplifier, which region is normally employed for linear (undistorted) amplifiers? a. active region b. capital region c. saturation region d. cutoff region Choose correct answer

Please explain the concept of amplifiers.

Show that the Class B Amplifier Efficiency is 78.54%??

Amplifier circuit is show below has a single ac input and one ac output. Assuming 2N2222 transistor: Construct the T-model of the transistor with all parameters labelled and evaluated. Assume room temperature. Draw a complete small signal circuit model, then find the voltage gain. Explain two characteristics of this amplifier. Calculate the current gain, the input resistance, and the output resistance.

The reason the AC saturation collector current is higher than the DC saturation current in power amplifiers is due to what? O bypass capacitor providing a short for the ac signal O bypass capacitor giving additional voltage to the circuit O Re being very small O The collector current cannot exceed the DC saturation current.

How experimental setup is prepared for a CE transistor configuration. Drawits a h-parameter model. Find amplifier parameters given below using this model- (i) Current gain(ii) Input impedance(iii) Voltage Amplification (AVS) consideration source impedance(iv) Current Amplification (AIS) consideration source impedance

It is connected to the input of a transistor (BJT) amplifier circuit with a gain of "-50" with a peak value of 100mV. a sine sign is applied a) Draw the circuit. b) Underline the input and output voltages by specifying their values.

What is the phase relationship between input and output voltage waveforms of the common source JFET amplifier?

To obtain the desired high gain in voltage amplifiers............What should come in the blank  Please choose one: A.The output stage resistance is kept low. B.There is no need for ob buffer elevations. C.One riser stage is sufficient. D. Uses several amplifiers connected in a row e input stage resistance is kept low.

a) Using an appropriate circuit diagram describe the principle of operation of the class B Push-pull amplifier. b) Explain the effect of crossover distortion and how its eliminated in the push pull amplifiers. c) Derive the efficiency of a class B amplifier circuit. Include diagrams and show all the working where necessary.

With the aid of suitable diagrams, explain the occurrence of crossover distortion in the basic Class AB amplifier.

(1) Describe in detail the relative advantages of Class A and Class B amplifiers. In what types of circuits would Class B be advantageous over Class A (1I) With the aid of signal diagrams, describe two forms of distortion you would expect to observe on an output signal of a Class B amplifier. (III) Describe in circuit terms the advantages of a Class AB amplifier.

What are the phenomena observed in integrated operational amplifiers?

Class B Amplifier  q1)If the input is 7.5Vp-p...DATA COLLECTION: What is the IL(peak)? a)7mA 6)mA 5)mA 4)mA q2) DATA COLLECTION: What is the Idc? a)3.84 b)4.82 c)3.82mA d)1.82mA q3)DATA COLLECTION: What is the input power in DC? Power input = 48.45mW Power input = 45.48mW Power input = 44.58mW Power input = 45.84mW q4) DATA COLLECTION: What is the output power in AC? a)18mW b)81mW c)11.8mW d)18.9mW q5)DATA COLLECTION: What is the power dissapated by each transistor? a)35.1mW b)53.1mW c)15.3mW d)13.5mW q6)DATA COLLECTION: What is the efficiency of class B amplifier? a)45% b)40% c)63% d)33% q7)

Lecturer Karrar Al bayat = Consider the circuit shown in Figure below with transistor parameters ß 120 and VA =00. (a) Determine the small-signal parameters gm, I, and to for both transistors. (b) Plot the dc and ac load lines for both transistors. (c) Determine the overall small-signal voltage gain Av = vo/vs. (d) Determine the input resistance R₁, and the output resistance R.. (e) Determine the maximum Vcc=+12 V undistorted swing in the output voltage. < R₁ = < 67.3 ΚΩ R₂ = Σ 15 ΚΩ Ro R₂ = R₁= 12.7 K 345 ΚΩ Ris Co RC1 = ΤΟ ΚΩ "98 21 REL= <2k2=CE 22 CC3 RE2= RL= 1.6 kΩ < 250 Ω -OU

1. Consider an inverting operational amplifier circuit with Ri = 10kohms and Rf = 50kohms. a. Determine the closed loop voltage gain b. Determine the input impedance of the circuit. c. Determine the ideal output impedance of the circuit. d. Determine the peak input voltage, Vi(peak) for which linear operation is possible. e. Determine the output voltage for each of the following values of input voltage. 2. Assume that for the circuit in problem1, for Vi = -2V, assume that an external load RL=2kohms is connected to the output. Determine the total op amp output current.

How a BJT works as an Amplifier? Explain in detail?

Consider the circuit in Figure 1 below. Explain the effects of Rs and RL in the circuit parameters (Voltage and Current Gains, and the Input and Output Impedances) of the amplifier?