Problem 1 The circuit below is a two-stage common-source amplifier. We assume that the n-type MOSFETs operate in saturation regions and are characterized by parameters as shown in the figure below. 6V 8V 2ΚΩ ΙΚΩ VO2 K₁=2mA/V² VTI=1V V01 K₂=1mA/V² VT2=2V (a) Find DC operating points for the output of the two common-source amplifiers (V01 & V02) when the DC operating point for the input of the first common-source amplifier (V1) is 2V. (b) Find the transconductance gain of the two n-type MOSFETs (gm1 & gm2). Note that gm1 is the transconductance gain of the first transistor on the left, and gm2 is the transconductance gain of the second transistor on the right. (c) Find the voltage gain of the two common-source amplifiers (A1 & A2). Note that A1 is the voltage gain of the first amplifier on the left, and A2 is the voltage gain of the second amplifier on the right.

As a maintenance engineer in a semiconductor company, you are given a task to replace the current version of dc-biasing circuit for a faulty tester machine. This dc-biasing circuit used an n-channel JFET as shown in Figure 2. Re-design a new dc-biasing circuit using an n-channel D-MOSFET that can produce a similar output current, IDQ as the previous circuit. Your tasks are: (i) Calculate the operating point (IDQ and VGSQ) of the dc-biasing circuit in Figure 2. Then sketch the JFET network transfer curve (ID and VGS). (ii) Without changing the circuit configuration, calculate the values of source resistor, RS and RB to achieve this objective. Determine the commercial value of the new RS and RB.    For cost reduction reason, the values of RD, RA and VDD should be maintained.    The chosen D-MOSFET has a maximum drain current of 8 mA and gate-source cutoff voltage of – 15V.    The new RS value should be 3 times larger than the old RS used in the JFET network to compensate for the high…

Correct the sentence: The aim of using coupling in multistage transistor amplifiers is to transfer DC output of one stage to the input of the next .stage and to isolate the d.c. conditions of one stage from the next stage

Using LTSpice, simulate the circuit below, use 2N3904 for the transistor. Part ! DC simulation: Measure VCE and Ic. Use .op for the simulation cmd. Remove all capacitors and input signals first. Part 2 AC simulation: Connect all capacitors now and apply an AC signal at the input with an amplitufe of 1mV and a frequency of 1kHz. Determine the Voltage gain of the circuit by dividing Vo with Vin. Show the output for both the DC and AC analysis. Take a screenshot of the circuit and the output voltages and waveforms. Paste in a word file, write your answers, then save as pdf. 50 kΩ Σ 20 0,5 ΚΩ wwwh 9 Vcc=20 V Ca=1 µF = Cc₂ Cg=50 μF 5.6 kn B=100 Ca IST • 3.3 ΚΩ 5 ΚΩΣ CE

Design-CE255/ purses / Introduction to Electronic Analysis and Design - CE255/E To use it as an amplifier Select one: a. The MOSFET should in the triode region b. The MOSFET should be in the cutoff region c. The MOSFET should be in the saturation region d. The MOSFET could be in saturation or triode region ge Esessment CE255/EE255 (O1) - Dr. Mamoun Al-Mistar Jump to...

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

This waveform is from the drain of a mosfet in a boost converter. Can you please describe this waveform

Sketch the de load line, quiescent collector current, quiescent voltsge, input power, output power and maximum efficiency of the circuit shown an Figure. The input results in a base current of 5 mA peak to peak What maximum output power can be delivered by the circuit, if the input voltage is changed resulting in a base current of 10mA peak to peak and hence find the maximum etficiency. cc=15 V R =18 2 -25

5, a) Determine Vdsat when ID=.5 mA. b) Determine Kn when ID = 0.5 Amps. (Show your work!) c) Determine VTN. (Show your work!) d) Vgs Consider the circuit and corresponding graph, shown below. ID (mA) 0.60 0.50 0.40 0.30 0.20 0.10 0.00 0 0.5 Vds 1 1.5 2 2.5 Vds 3 3.5 4 4.5 5 -Vgs = 1V - Vgs = 1.1V - Vgs = 1.2V - Vgs = 1.3V

VR2 (t) voltage will be calculated by analyzing the circuit in Figure 2 with a non-linear element using the Small Signal Analysis method. For this purposea) Find the operating point VkQ, IkQ voltage and current values of the nonlinear element.b) Linearize the non-linear element at the operating point.c) Find the voltage VR2 (t) by calculating the effect of the variable source using the linear model.